From bcb79fa612454012db31b1404940caea209ffeec Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Wed, 9 Jan 2019 15:34:57 +0100 Subject: erts: Limit binary printout for %.XT in erts_print --- erts/emulator/beam/erl_printf_term.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'erts') diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c index 9cfb7fc681..2e33a8a782 100644 --- a/erts/emulator/beam/erl_printf_term.c +++ b/erts/emulator/beam/erl_printf_term.c @@ -487,6 +487,8 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount) { PRINT_UWORD(res, fn, arg, 'u', 0, 1, octet); ++bytep; --bytesize; + if ((*dcount)-- <= 0) + goto L_done; } if (bitsize) { Uint bits = bitoffs + bitsize; @@ -521,6 +523,8 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount) { PRINT_CHAR(res, fn, arg, octet); ++bytep; --bytesize; + if ((*dcount)-- <= 0) + goto L_done; } PRINT_STRING(res, fn, arg, "\">>"); } -- cgit v1.2.3 From 5c8f2bee9a427768c187a35a6ecd720faa860200 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Mon, 17 Dec 2018 10:59:25 +0100 Subject: erts: Refactor rbt _yielding to use reductions All of the Red-Black Tree _yielding functions have been updated to work with reductions returned by the called function instead of yielding on each element. --- erts/emulator/beam/break.c | 6 +- erts/emulator/beam/dist.c | 57 ++++--- erts/emulator/beam/dist.h | 1 - erts/emulator/beam/erl_alloc_util.c | 16 +- erts/emulator/beam/erl_bif_info.c | 41 +++-- erts/emulator/beam/erl_db.c | 6 +- erts/emulator/beam/erl_hl_timer.c | 39 +++-- erts/emulator/beam/erl_hl_timer.h | 2 +- erts/emulator/beam/erl_monitor_link.c | 128 +++++++-------- erts/emulator/beam/erl_monitor_link.h | 230 ++++++++++++++------------ erts/emulator/beam/erl_nif.c | 3 +- erts/emulator/beam/erl_node_tables.c | 22 ++- erts/emulator/beam/erl_proc_sig_queue.c | 21 +-- erts/emulator/beam/erl_proc_sig_queue.h | 6 +- erts/emulator/beam/erl_process.c | 10 +- erts/emulator/beam/erl_process.h | 4 +- erts/emulator/beam/erl_process_dump.c | 10 +- erts/emulator/beam/erl_rbtree.h | 280 ++++++++++++++++++++------------ erts/emulator/beam/erl_time_sup.c | 6 +- erts/emulator/beam/io.c | 12 +- erts/emulator/sys/common/erl_osenv.c | 12 +- 21 files changed, 514 insertions(+), 398 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c index 273b598562..27bf2187c2 100644 --- a/erts/emulator/beam/break.c +++ b/erts/emulator/beam/break.c @@ -129,7 +129,7 @@ typedef struct { void *to_arg; } PrintMonitorContext; -static void doit_print_link(ErtsLink *lnk, void *vpcontext) +static int doit_print_link(ErtsLink *lnk, void *vpcontext, Sint reds) { PrintMonitorContext *pcontext = vpcontext; fmtfn_t to = pcontext->to; @@ -141,10 +141,11 @@ static void doit_print_link(ErtsLink *lnk, void *vpcontext) } else { erts_print(to, to_arg, ", %T", lnk->other.item); } + return 1; } -static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext) +static int doit_print_monitor(ErtsMonitor *mon, void *vpcontext, Sint reds) { ErtsMonitorData *mdp; PrintMonitorContext *pcontext = vpcontext; @@ -196,6 +197,7 @@ static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext) /* ignore other monitors... */ break; } + return 1; } /* Display info about an individual Erlang process */ diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 15642e1669..21f994fd3e 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -185,20 +185,22 @@ get_suspended_on_de(DistEntry *dep, erts_aint32_t unset_qflgs) } } -#define ERTS_MON_LNK_FIRE_LIMIT 100 +#define ERTS_MON_LNK_FIRE_REDS 40 -static void monitor_connection_down(ErtsMonitor *mon, void *unused) +static int monitor_connection_down(ErtsMonitor *mon, void *unused, Sint reds) { if (erts_monitor_is_origin(mon)) erts_proc_sig_send_demonitor(mon); else erts_proc_sig_send_monitor_down(mon, am_noconnection); + return ERTS_MON_LNK_FIRE_REDS; } -static void link_connection_down(ErtsLink *lnk, void *vdist) +static int link_connection_down(ErtsLink *lnk, void *vdist, Sint reds) { erts_proc_sig_send_link_exit(NULL, THE_NON_VALUE, lnk, am_noconnection, NIL); + return ERTS_MON_LNK_FIRE_REDS; } typedef enum { @@ -226,35 +228,35 @@ con_monitor_link_cleanup(void *vcmlcp) ErtsConMonLnkCleanup *cmlcp = vcmlcp; ErtsMonLnkDist *dist = cmlcp->dist; ErtsSchedulerData *esdp; - int yield; + int reds = CONTEXT_REDS; switch (cmlcp->state) { case ERTS_CML_CLEANUP_STATE_LINKS: - yield = erts_link_list_foreach_delete_yielding(&dist->links, - link_connection_down, - NULL, &cmlcp->yield_state, - ERTS_MON_LNK_FIRE_LIMIT); - if (yield) + reds = erts_link_list_foreach_delete_yielding(&dist->links, + link_connection_down, + NULL, &cmlcp->yield_state, + reds); + if (reds <= 0) break; ASSERT(!cmlcp->yield_state); cmlcp->state = ERTS_CML_CLEANUP_STATE_MONITORS; case ERTS_CML_CLEANUP_STATE_MONITORS: - yield = erts_monitor_list_foreach_delete_yielding(&dist->monitors, - monitor_connection_down, - NULL, &cmlcp->yield_state, - ERTS_MON_LNK_FIRE_LIMIT); - if (yield) + reds = erts_monitor_list_foreach_delete_yielding(&dist->monitors, + monitor_connection_down, + NULL, &cmlcp->yield_state, + reds); + if (reds <= 0) break; ASSERT(!cmlcp->yield_state); cmlcp->state = ERTS_CML_CLEANUP_STATE_ONAME_MONITORS; case ERTS_CML_CLEANUP_STATE_ONAME_MONITORS: - yield = erts_monitor_tree_foreach_delete_yielding(&dist->orig_name_monitors, - monitor_connection_down, - NULL, &cmlcp->yield_state, - ERTS_MON_LNK_FIRE_LIMIT/2); - if (yield) + reds = erts_monitor_tree_foreach_delete_yielding(&dist->orig_name_monitors, + monitor_connection_down, + NULL, &cmlcp->yield_state, + reds); + if (reds <= 0) break; cmlcp->dist = NULL; @@ -1188,7 +1190,6 @@ erts_dsig_send_group_leader(ErtsDSigData *dsdp, Eterm leader, Eterm remote) #elif defined(VALGRIND) #include #include - # define PURIFY_MSG(msg) \ VALGRIND_PRINTF("%s, line %d: %s", __FILE__, __LINE__, msg) #else @@ -2891,7 +2892,7 @@ struct print_to_data { void *arg; }; -static void doit_print_monitor_info(ErtsMonitor *mon, void *vptdp) +static int doit_print_monitor_info(ErtsMonitor *mon, void *vptdp, Sint reds) { fmtfn_t to = ((struct print_to_data *) vptdp)->to; void *arg = ((struct print_to_data *) vptdp)->arg; @@ -2914,6 +2915,7 @@ static void doit_print_monitor_info(ErtsMonitor *mon, void *vptdp) else erts_print(to, arg, "%T\n", mdep->md.origin.other.item); } + return 1; } static void print_monitor_info(fmtfn_t to, void *arg, DistEntry *dep) @@ -2929,12 +2931,13 @@ static void print_monitor_info(fmtfn_t to, void *arg, DistEntry *dep) } } -static void doit_print_link_info(ErtsLink *lnk, void *vptdp) +static int doit_print_link_info(ErtsLink *lnk, void *vptdp, Sint reds) { struct print_to_data *ptdp = vptdp; ErtsLink *lnk2 = erts_link_to_other(lnk, NULL); erts_print(ptdp->to, ptdp->arg, "Remote link: %T %T\n", lnk2->other.item, lnk->other.item); + return 1; } static void print_link_info(fmtfn_t to, void *arg, DistEntry *dep) @@ -4150,8 +4153,8 @@ typedef struct { Uint i; } ErtsNodesMonitorContext; -static void -save_nodes_monitor(ErtsMonitor *mon, void *vctxt) +static int +save_nodes_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) { ErtsNodesMonitorContext *ctxt = vctxt; ErtsMonitorData *mdp = erts_monitor_to_data(mon); @@ -4163,6 +4166,7 @@ save_nodes_monitor(ErtsMonitor *mon, void *vctxt) ctxt->nmdp[ctxt->i].options = mdp->origin.other.item; ctxt->i++; + return 1; } static void @@ -4295,8 +4299,8 @@ typedef struct { } ErtsNodesMonitorInfoContext; -static void -nodes_monitor_info(ErtsMonitor *mon, void *vctxt) +static int +nodes_monitor_info(ErtsMonitor *mon, void *vctxt, Sint reds) { ErtsMonitorDataExtended *mdep; ErtsNodesMonitorInfoContext *ctxt = vctxt; @@ -4343,6 +4347,7 @@ nodes_monitor_info(ErtsMonitor *mon, void *vctxt) ctxt->hpp = hpp; ctxt->szp = szp; ctxt->res = res; + return 1; } Eterm diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 845fab229a..a8ccd1eaec 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -404,5 +404,4 @@ extern Uint erts_dist_cache_size(void); extern Sint erts_abort_connection_rwunlock(DistEntry *dep); - #endif diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index d238d38d27..8d4464969a 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -7503,7 +7503,7 @@ static int gather_ahist_scan(Allctr_t *allocator, return blocks_scanned; } -static void gather_ahist_append_result(hist_tree_t *node, void *arg) +static int gather_ahist_append_result(hist_tree_t *node, void *arg, Sint reds) { gather_ahist_t *state = (gather_ahist_t*)arg; @@ -7537,6 +7537,7 @@ static void gather_ahist_append_result(hist_tree_t *node, void *arg) /* Plain free is intentional. */ free(node); + return 1; } static void gather_ahist_send(gather_ahist_t *state) @@ -7595,11 +7596,11 @@ static int gather_ahist_finish(void *arg) state->building_result = 1; } - if (hist_tree_rbt_foreach_destroy_yielding(&state->hist_tree, - &gather_ahist_append_result, - state, - &state->hist_tree_yield, - BLOCKSCAN_REDUCTIONS)) { + if (!hist_tree_rbt_foreach_destroy_yielding(&state->hist_tree, + &gather_ahist_append_result, + state, + &state->hist_tree_yield, + BLOCKSCAN_REDUCTIONS)) { return 1; } @@ -7608,10 +7609,11 @@ static int gather_ahist_finish(void *arg) return 0; } -static void gather_ahist_destroy_result(hist_tree_t *node, void *arg) +static int gather_ahist_destroy_result(hist_tree_t *node, void *arg, Sint reds) { (void)arg; free(node); + return 1; } static void gather_ahist_abort(void *arg) diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 6f4e34e1a8..74708b2caa 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -227,7 +227,7 @@ bld_magic_ref_bin_list(Uint **hpp, Uint *szp, ErlOffHeap* oh) }). */ -static void do_calc_mon_size(ErtsMonitor *mon, void *vpsz) +static int do_calc_mon_size(ErtsMonitor *mon, void *vpsz, Sint reds) { ErtsMonitorData *mdp = erts_monitor_to_data(mon); Uint *psz = vpsz; @@ -238,7 +238,8 @@ static void do_calc_mon_size(ErtsMonitor *mon, void *vpsz) else *psz += is_immed(mon->other.item) ? 0 : NC_HEAP_SIZE(mon->other.item); - *psz += 9; /* CONS + 6-tuple */ + *psz += 9; /* CONS + 6-tuple */ + return 1; } typedef struct { @@ -248,7 +249,7 @@ typedef struct { Eterm tag; } MonListContext; -static void do_make_one_mon_element(ErtsMonitor *mon, void * vpmlc) +static int do_make_one_mon_element(ErtsMonitor *mon, void * vpmlc, Sint reds) { ErtsMonitorData *mdp = erts_monitor_to_data(mon); MonListContext *pmlc = vpmlc; @@ -319,6 +320,7 @@ static void do_make_one_mon_element(ErtsMonitor *mon, void * vpmlc) pmlc->hp += 7; pmlc->res = CONS(pmlc->hp, tup, pmlc->res); pmlc->hp += 2; + return 1; } static Eterm @@ -328,7 +330,7 @@ make_monitor_list(Process *p, int tree, ErtsMonitor *root, Eterm tail) Uint sz = 0; MonListContext mlc; void (*foreach)(ErtsMonitor *, - void (*)(ErtsMonitor *, void *), + ErtsMonitorFunc, void *); foreach = tree ? erts_monitor_tree_foreach : erts_monitor_list_foreach; @@ -354,7 +356,7 @@ make_monitor_list(Process *p, int tree, ErtsMonitor *root, Eterm tail) }). */ -static void calc_lnk_size(ErtsLink *lnk, void *vpsz) +static int calc_lnk_size(ErtsLink *lnk, void *vpsz, Sint reds) { Uint *psz = vpsz; Uint sz = 0; @@ -364,7 +366,8 @@ static void calc_lnk_size(ErtsLink *lnk, void *vpsz) *psz += sz; *psz += is_immed(lnk->other.item) ? 0 : size_object(lnk->other.item); - *psz += 7; /* CONS + 4-tuple */ + *psz += 7; /* CONS + 4-tuple */ + return 1; } typedef struct { @@ -374,7 +377,7 @@ typedef struct { Eterm tag; } LnkListContext; -static void make_one_lnk_element(ErtsLink *lnk, void * vpllc) +static int make_one_lnk_element(ErtsLink *lnk, void * vpllc, Sint reds) { LnkListContext *pllc = vpllc; Eterm tup, t, pid, id; @@ -411,6 +414,7 @@ static void make_one_lnk_element(ErtsLink *lnk, void * vpllc) pllc->hp += 5; pllc->res = CONS(pllc->hp, tup, pllc->res); pllc->hp += 2; + return 1; } static Eterm @@ -420,7 +424,7 @@ make_link_list(Process *p, int tree, ErtsLink *root, Eterm tail) Uint sz = 0; LnkListContext llc; void (*foreach)(ErtsLink *, - void (*)(ErtsLink *, void *), + ErtsLinkFunc, void *); foreach = tree ? erts_link_tree_foreach : erts_link_list_foreach; @@ -519,16 +523,17 @@ do { \ } \ } while (0) -static void collect_one_link(ErtsLink *lnk, void *vmicp) +static int collect_one_link(ErtsLink *lnk, void *vmicp, Sint reds) { MonitorInfoCollection *micp = vmicp; EXTEND_MONITOR_INFOS(micp); micp->mi[micp->mi_i].entity.term = lnk->other.item; micp->sz += 2 + NC_HEAP_SIZE(lnk->other.item); micp->mi_i++; + return 1; } -static void collect_one_origin_monitor(ErtsMonitor *mon, void *vmicp) +static int collect_one_origin_monitor(ErtsMonitor *mon, void *vmicp, Sint reds) { if (erts_monitor_is_origin(mon)) { MonitorInfoCollection *micp = vmicp; @@ -573,9 +578,10 @@ static void collect_one_origin_monitor(ErtsMonitor *mon, void *vmicp) break; } } + return 1; } -static void collect_one_target_monitor(ErtsMonitor *mon, void *vmicp) +static int collect_one_target_monitor(ErtsMonitor *mon, void *vmicp, Sint reds) { MonitorInfoCollection *micp = vmicp; @@ -612,8 +618,8 @@ static void collect_one_target_monitor(ErtsMonitor *mon, void *vmicp) default: break; } - } + return 1; } typedef struct { @@ -653,8 +659,8 @@ do { \ } \ } while (0) -static void -collect_one_suspend_monitor(ErtsMonitor *mon, void *vsmicp) +static int +collect_one_suspend_monitor(ErtsMonitor *mon, void *vsmicp, Sint reds) { if (mon->type == ERTS_MON_TYPE_SUSPEND) { Sint count; @@ -678,6 +684,7 @@ collect_one_suspend_monitor(ErtsMonitor *mon, void *vsmicp) smicp->smi_i++; } + return 1; } /* @@ -3144,14 +3151,16 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) BIF_ERROR(BIF_P, BADARG); } -static void monitor_size(ErtsMonitor *mon, void *vsz) +static int monitor_size(ErtsMonitor *mon, void *vsz, Sint reds) { *((Uint *) vsz) = erts_monitor_size(mon); + return 1; } -static void link_size(ErtsMonitor *lnk, void *vsz) +static int link_size(ErtsMonitor *lnk, void *vsz, Sint reds) { *((Uint *) vsz) = erts_link_size(lnk); + return 1; } /**********************************************************************/ diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index df6f42edd3..0d570517ec 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -3912,7 +3912,7 @@ struct free_fixations_ctx SWord cnt; }; -static void free_fixations_op(DbFixation* fix, void* vctx) +static int free_fixations_op(DbFixation* fix, void* vctx, Sint reds) { struct free_fixations_ctx* ctx = (struct free_fixations_ctx*) vctx; erts_aint_t diff; @@ -3949,6 +3949,7 @@ static void free_fixations_op(DbFixation* fix, void* vctx) ERTS_ETS_MISC_MEM_ADD(-sizeof(DbFixation)); } ctx->cnt++; + return 1; } int erts_db_execute_free_fixation(Process* p, DbFixation* fix) @@ -4093,7 +4094,7 @@ struct fixing_procs_info_ctx Eterm list; }; -static void fixing_procs_info_op(DbFixation* fix, void* vctx) +static int fixing_procs_info_op(DbFixation* fix, void* vctx, Sint reds) { struct fixing_procs_info_ctx* ctx = (struct fixing_procs_info_ctx*) vctx; Eterm* hp; @@ -4103,6 +4104,7 @@ static void fixing_procs_info_op(DbFixation* fix, void* vctx) tpl = TUPLE2(hp, fix->procs.p->common.id, make_small(fix->counter)); hp += 3; ctx->list = CONS(hp, tpl, ctx->list); + return 1; } static Eterm table_info(Process* p, DbTable* tb, Eterm What) diff --git a/erts/emulator/beam/erl_hl_timer.c b/erts/emulator/beam/erl_hl_timer.c index 75ad6de2c9..b0eb0e85c0 100644 --- a/erts/emulator/beam/erl_hl_timer.c +++ b/erts/emulator/beam/erl_hl_timer.c @@ -2263,9 +2263,10 @@ parse_bif_timer_options(Eterm option_list, int *async, return 1; } -static void -exit_cancel_bif_timer(ErtsBifTimer *tmr, void *vesdp) +static int +exit_cancel_bif_timer(ErtsBifTimer *tmr, void *vesdp, Sint reds) { +#define ERTS_BTM_CANCEL_REDS 80 ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp; Uint32 sid, roflgs; erts_aint_t state; @@ -2290,7 +2291,7 @@ exit_cancel_bif_timer(ErtsBifTimer *tmr, void *vesdp) if (sid != (Uint32) esdp->no) { queue_canceled_timer(esdp, sid, (ErtsTimer *) tmr); - return; + return ERTS_BTM_CANCEL_REDS; } if (tmr->btm.tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) { @@ -2306,14 +2307,9 @@ exit_cancel_bif_timer(ErtsBifTimer *tmr, void *vesdp) hl_timer_dec_refc(&tmr->type.hlt, roflgs); else tw_timer_dec_refc(&tmr->type.twt); + return ERTS_BTM_CANCEL_REDS; } -#ifdef ERTS_HLT_DEBUG -# define ERTS_BTM_MAX_DESTROY_LIMIT 2 -#else -# define ERTS_BTM_MAX_DESTROY_LIMIT 50 -#endif - typedef struct { ErtsBifTimers *bif_timers; union { @@ -2321,10 +2317,9 @@ typedef struct { } u; } ErtsBifTimerYieldState; -int erts_cancel_bif_timers(Process *p, ErtsBifTimers **btm, void **vyspp) +int erts_cancel_bif_timers(Process *p, ErtsBifTimers **btm, void **vyspp, int reds) { ErtsSchedulerData *esdp = erts_proc_sched_data(p); - ErtsBifTimerYieldState ys = {*btm, {ERTS_RBT_YIELD_STAT_INITER}}; ErtsBifTimerYieldState *ysp; int res; @@ -2337,9 +2332,9 @@ int erts_cancel_bif_timers(Process *p, ErtsBifTimers **btm, void **vyspp) exit_cancel_bif_timer, (void *) esdp, &ysp->u.proc_btm_yield_state, - ERTS_BTM_MAX_DESTROY_LIMIT); + reds); - if (res == 0) { + if (res > 0) { if (ysp != &ys) erts_free(ERTS_ALC_T_BTM_YIELD_STATE, ysp); *vyspp = NULL; @@ -2819,8 +2814,8 @@ btm_print(ErtsBifTimer *tmr, void *vbtmp, ErtsMonotonicTime tpos, int is_hlt) (Sint64) left); } -static void -btm_tree_print(ErtsBifTimer *tmr, void *vbtmp) +static int +btm_tree_print(ErtsBifTimer *tmr, void *vbtmp, Sint reds) { int is_hlt = !!(tmr->type.head.roflgs & ERTS_TMR_ROFLG_HLT); ErtsMonotonicTime tpos; @@ -2829,6 +2824,7 @@ btm_tree_print(ErtsBifTimer *tmr, void *vbtmp) else tpos = erts_tweel_read_timeout(&tmr->type.twt.u.tw_tmr); btm_print(tmr, vbtmp, tpos, is_hlt); + return 1; } void @@ -2860,8 +2856,8 @@ typedef struct { void *arg; } ErtsBTMForeachDebug; -static void -debug_btm_foreach(ErtsBifTimer *tmr, void *vbtmfd) +static int +debug_btm_foreach(ErtsBifTimer *tmr, void *vbtmfd, Sint reds) { if (erts_atomic32_read_nob(&tmr->btm.state) == ERTS_TMR_STATE_ACTIVE) { ErtsBTMForeachDebug *btmfd = (ErtsBTMForeachDebug *) vbtmfd; @@ -2870,6 +2866,7 @@ debug_btm_foreach(ErtsBifTimer *tmr, void *vbtmfd) : tmr->type.head.receiver.proc->common.id); (*btmfd->func)(id, tmr->btm.message, tmr->btm.bp, btmfd->arg); } + return 1; } void @@ -2918,8 +2915,8 @@ debug_callback_timer_foreach_list(ErtsHLTimer *tmr, void *vdfct) tmr->head.u.arg); } -static void -debug_callback_timer_foreach(ErtsHLTimer *tmr, void *vdfct) +static int +debug_callback_timer_foreach(ErtsHLTimer *tmr, void *vdfct, Sint reds) { ErtsDebugForeachCallbackTimer *dfct = (ErtsDebugForeachCallbackTimer *) vdfct; @@ -2934,6 +2931,7 @@ debug_callback_timer_foreach(ErtsHLTimer *tmr, void *vdfct) (*dfct->func)(dfct->arg, tmr->timeout, tmr->head.u.arg); + return 1; } static void @@ -2981,7 +2979,8 @@ erts_debug_callback_timer_foreach(void (*tclbk)(void *), if (srv->yield.root) debug_callback_timer_foreach(srv->yield.root, - (void *) &dfct); + (void *) &dfct, + -1); time_rbt_foreach(srv->time_tree, debug_callback_timer_foreach, diff --git a/erts/emulator/beam/erl_hl_timer.h b/erts/emulator/beam/erl_hl_timer.h index e6f5e8b67d..29c873868b 100644 --- a/erts/emulator/beam/erl_hl_timer.h +++ b/erts/emulator/beam/erl_hl_timer.h @@ -56,7 +56,7 @@ void erts_cancel_proc_timer(Process *); void erts_set_port_timer(Port *, Sint64); void erts_cancel_port_timer(Port *); Sint64 erts_read_port_timer(Port *); -int erts_cancel_bif_timers(Process *, ErtsBifTimers **, void **); +int erts_cancel_bif_timers(Process *, ErtsBifTimers **, void **, int); int erts_detach_accessor_bif_timers(Process *, ErtsBifTimers *, void **); ErtsHLTimerService *erts_create_timer_service(void); void erts_hl_timer_init(void); diff --git a/erts/emulator/beam/erl_monitor_link.c b/erts/emulator/beam/erl_monitor_link.c index 48d9bd4ca5..3dabd79190 100644 --- a/erts/emulator/beam/erl_monitor_link.c +++ b/erts/emulator/beam/erl_monitor_link.c @@ -335,7 +335,7 @@ ml_rbt_delete(ErtsMonLnkNode **root, ErtsMonLnkNode *ml) static void ml_rbt_foreach(ErtsMonLnkNode *root, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg) { mon_lnk_rbt_foreach(root, func, arg); @@ -348,7 +348,7 @@ typedef struct { static int ml_rbt_foreach_yielding(ErtsMonLnkNode *root, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg, void **vyspp, Sint limit) @@ -362,7 +362,7 @@ ml_rbt_foreach_yielding(ErtsMonLnkNode *root, ysp = &ys; res = mon_lnk_rbt_foreach_yielding(ysp->root, func, arg, &ysp->rbt_ystate, limit); - if (res == 0) { + if (res > 0) { if (ysp != &ys) erts_free(ERTS_ALC_T_ML_YIELD_STATE, ysp); *vyspp = NULL; @@ -383,22 +383,22 @@ ml_rbt_foreach_yielding(ErtsMonLnkNode *root, } typedef struct { - void (*func)(ErtsMonLnkNode *, void *); + ErtsMonLnkNodeFunc func; void *arg; } ErtsMonLnkForeachDeleteContext; -static void -rbt_wrap_foreach_delete(ErtsMonLnkNode *ml, void *vctxt) +static int +rbt_wrap_foreach_delete(ErtsMonLnkNode *ml, void *vctxt, Sint reds) { ErtsMonLnkForeachDeleteContext *ctxt = vctxt; ERTS_ML_ASSERT(ml->flags & ERTS_ML_FLG_IN_TABLE); ml->flags &= ~ERTS_ML_FLG_IN_TABLE; - ctxt->func(ml, ctxt->arg); + return ctxt->func(ml, ctxt->arg, reds); } static void ml_rbt_foreach_delete(ErtsMonLnkNode **root, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg) { ErtsMonLnkForeachDeleteContext ctxt; @@ -411,7 +411,7 @@ ml_rbt_foreach_delete(ErtsMonLnkNode **root, static int ml_rbt_foreach_delete_yielding(ErtsMonLnkNode **root, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg, void **vyspp, Sint limit) @@ -433,7 +433,7 @@ ml_rbt_foreach_delete_yielding(ErtsMonLnkNode **root, (void *) &ctxt, &ysp->rbt_ystate, limit); - if (res == 0) { + if (res > 0) { if (ysp != &ys) erts_free(ERTS_ALC_T_ML_YIELD_STATE, ysp); *vyspp = NULL; @@ -459,12 +459,11 @@ ml_rbt_foreach_delete_yielding(ErtsMonLnkNode **root, static int ml_dl_list_foreach_yielding(ErtsMonLnkNode *list, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg, void **vyspp, - Sint limit) + Sint reds) { - Sint cnt = 0; ErtsMonLnkNode *ml = (ErtsMonLnkNode *) *vyspp; ERTS_ML_ASSERT(!ml || list); @@ -475,28 +474,26 @@ ml_dl_list_foreach_yielding(ErtsMonLnkNode *list, if (ml) { do { ERTS_ML_ASSERT(ml->flags & ERTS_ML_FLG_IN_TABLE); - func(ml, arg); + reds -= func(ml, arg, reds); ml = ml->node.list.next; - cnt++; - } while (ml != list && cnt < limit); + } while (ml != list && reds > 0); if (ml != list) { *vyspp = (void *) ml; - return 1; /* yield */ + return 0; /* yield */ } } *vyspp = NULL; - return 0; /* done */ + return reds <= 0 ? 1 : reds; /* done */ } static int ml_dl_list_foreach_delete_yielding(ErtsMonLnkNode **list, - void (*func)(ErtsMonLnkNode *, void *), + ErtsMonLnkNodeFunc func, void *arg, void **vyspp, - Sint limit) + Sint reds) { - Sint cnt = 0; ErtsMonLnkNode *first = *list; ErtsMonLnkNode *ml = (ErtsMonLnkNode *) *vyspp; @@ -510,19 +507,18 @@ ml_dl_list_foreach_delete_yielding(ErtsMonLnkNode **list, ErtsMonLnkNode *next = ml->node.list.next; ERTS_ML_ASSERT(ml->flags & ERTS_ML_FLG_IN_TABLE); ml->flags &= ~ERTS_ML_FLG_IN_TABLE; - func(ml, arg); + reds -= func(ml, arg, reds); ml = next; - cnt++; - } while (ml != first && cnt < limit); + } while (ml != first && reds > 0); if (ml != first) { *vyspp = (void *) ml; - return 1; /* yield */ + return 0; /* yield */ } } *vyspp = NULL; *list = NULL; - return 0; /* done */ + return reds <= 0 ? 1 : reds; /* done */ } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ @@ -666,91 +662,91 @@ erts_monitor_tree_delete(ErtsMonitor **root, ErtsMonitor *mon) void erts_monitor_tree_foreach(ErtsMonitor *root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg) { ml_rbt_foreach((ErtsMonLnkNode *) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg); } int erts_monitor_tree_foreach_yielding(ErtsMonitor *root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, Sint limit) { return ml_rbt_foreach_yielding((ErtsMonLnkNode *) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (int (*)(ErtsMonLnkNode*, void*, Sint)) func, arg, vyspp, limit); } void erts_monitor_tree_foreach_delete(ErtsMonitor **root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg) { ml_rbt_foreach_delete((ErtsMonLnkNode **) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (int (*)(ErtsMonLnkNode*, void*, Sint)) func, arg); } int erts_monitor_tree_foreach_delete_yielding(ErtsMonitor **root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, Sint limit) { return ml_rbt_foreach_delete_yielding((ErtsMonLnkNode **) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (int (*)(ErtsMonLnkNode*, void*, Sint)) func, arg, vyspp, limit); } void erts_monitor_list_foreach(ErtsMonitor *list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg) { void *ystate = NULL; - while (ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, - (void (*)(ErtsMonLnkNode *, void *)) func, - arg, &ystate, (Sint) INT_MAX)); + while (!ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, + (int (*)(ErtsMonLnkNode *, void *, Sint)) func, + arg, &ystate, (Sint) INT_MAX)); } int erts_monitor_list_foreach_yielding(ErtsMonitor *list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, Sint limit) { return ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, - (void (*)(ErtsMonLnkNode *, void *)) func, + (int (*)(ErtsMonLnkNode *, void *, Sint)) func, arg, vyspp, limit); } void erts_monitor_list_foreach_delete(ErtsMonitor **list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg) { void *ystate = NULL; - while (ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, - (void (*)(ErtsMonLnkNode*, void*)) func, - arg, &ystate, (Sint) INT_MAX)); + while (!ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, + (int (*)(ErtsMonLnkNode*, void*, Sint)) func, + arg, &ystate, (Sint) INT_MAX)); } int erts_monitor_list_foreach_delete_yielding(ErtsMonitor **list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, Sint limit) { return ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, - (void (*)(ErtsMonLnkNode*, void*)) func, + (int (*)(ErtsMonLnkNode*, void*, Sint)) func, arg, vyspp, limit); } @@ -1074,92 +1070,92 @@ erts_link_tree_delete(ErtsLink **root, ErtsLink *lnk) void erts_link_tree_foreach(ErtsLink *root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg) { ml_rbt_foreach((ErtsMonLnkNode *) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg); } int erts_link_tree_foreach_yielding(ErtsLink *root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, Sint limit) { return ml_rbt_foreach_yielding((ErtsMonLnkNode *) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg, vyspp, limit); } void erts_link_tree_foreach_delete(ErtsLink **root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg) { ml_rbt_foreach_delete((ErtsMonLnkNode **) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg); } int erts_link_tree_foreach_delete_yielding(ErtsLink **root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, Sint limit) { return ml_rbt_foreach_delete_yielding((ErtsMonLnkNode **) root, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg, vyspp, limit); } void erts_link_list_foreach(ErtsLink *list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg) { void *ystate = NULL; - while (ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, - (void (*)(ErtsMonLnkNode *, void *)) func, - arg, &ystate, (Sint) INT_MAX)); + while (!ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, + (ErtsMonLnkNodeFunc) func, + arg, &ystate, (Sint) INT_MAX)); } int erts_link_list_foreach_yielding(ErtsLink *list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, Sint limit) { return ml_dl_list_foreach_yielding((ErtsMonLnkNode *) list, - (void (*)(ErtsMonLnkNode *, void *)) func, + (ErtsMonLnkNodeFunc) func, arg, vyspp, limit); } void erts_link_list_foreach_delete(ErtsLink **list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg) { void *ystate = NULL; - while (ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, - (void (*)(ErtsMonLnkNode*, void*)) func, - arg, &ystate, (Sint) INT_MAX)); + while (!ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, + (ErtsMonLnkNodeFunc) func, + arg, &ystate, (Sint) INT_MAX)); } int erts_link_list_foreach_delete_yielding(ErtsLink **list, - void (*func)(ErtsLink *, void *), + int (*func)(ErtsLink *, void *, Sint), void *arg, void **vyspp, Sint limit) { return ml_dl_list_foreach_delete_yielding((ErtsMonLnkNode **) list, - (void (*)(ErtsMonLnkNode*, void*)) func, + (ErtsMonLnkNodeFunc) func, arg, vyspp, limit); } diff --git a/erts/emulator/beam/erl_monitor_link.h b/erts/emulator/beam/erl_monitor_link.h index ed7bf7d54a..eff861fce8 100644 --- a/erts/emulator/beam/erl_monitor_link.h +++ b/erts/emulator/beam/erl_monitor_link.h @@ -439,6 +439,7 @@ (ERTS_ML_FLG_EXTENDED|ERTS_ML_FLG_NAME) typedef struct ErtsMonLnkNode__ ErtsMonLnkNode; +typedef int (*ErtsMonLnkNodeFunc)(ErtsMonLnkNode *, void *, Sint); typedef struct { UWord parent; /* Parent ptr and flags... */ @@ -622,6 +623,7 @@ erts_ml_dl_list_last__(ErtsMonLnkNode *list) typedef struct ErtsMonLnkNode__ ErtsMonitor; +typedef int (*ErtsMonitorFunc)(ErtsMonitor *, void *, Sint); typedef struct { ErtsMonitor origin; @@ -653,6 +655,7 @@ struct ErtsMonitorDataExtended__ { typedef struct ErtsMonitorSuspend__ ErtsMonitorSuspend; + struct ErtsMonitorSuspend__ { ErtsMonitorData md; /* origin = suspender; target = suspendee */ ErtsMonitorSuspend *next; @@ -685,7 +688,7 @@ ErtsMonitor *erts_monitor_tree_lookup(ErtsMonitor *root, Eterm key); * * @brief Lookup or insert a monitor in a monitor tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is not part of any tree or list * If the above is not true, bad things will happen. * @@ -711,7 +714,7 @@ ErtsMonitor *erts_monotor_tree_lookup_insert(ErtsMonitor **root, * If it is not found, creates a monitor and returns a pointer to the * origin monitor. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - no target monitors with the key 'target' exists in the tree. * If the above is not true, bad things will happen. * @@ -738,7 +741,7 @@ ErtsMonitor *erts_monitor_tree_lookup_create(ErtsMonitor **root, int *created, * * @brief Insert a monitor in a monitor tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - no monitors with the same key that 'mon' exist in the tree * - 'mon' is not part of any list of tree * If the above are not true, bad things will happen. @@ -754,7 +757,7 @@ void erts_monitor_tree_insert(ErtsMonitor **root, ErtsMonitor *mon); * * @brief Replace a monitor in a monitor tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'old' monitor and 'new' monitor have exactly the same key * - 'old' monitor is part of the tree * - 'new' monitor is not part of any tree or list @@ -774,7 +777,7 @@ void erts_monitor_tree_replace(ErtsMonitor **root, ErtsMonitor *old, * * @brief Delete a monitor from a monitor tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is part of the tree * If the above is not true, bad things will happen. * @@ -789,7 +792,7 @@ void erts_monitor_tree_delete(ErtsMonitor **root, ErtsMonitor *mon); * * @brief Call a function for each monitor in a monitor tree * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor * in the tree referred to by 'root'. * @@ -802,7 +805,7 @@ void erts_monitor_tree_delete(ErtsMonitor **root, ErtsMonitor *mon); * */ void erts_monitor_tree_foreach(ErtsMonitor *root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg); /** @@ -810,9 +813,10 @@ void erts_monitor_tree_foreach(ErtsMonitor *root, * @brief Call a function for each monitor in a monitor tree. Yield * if lots of monitors exist. * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -835,27 +839,28 @@ void erts_monitor_tree_foreach(ErtsMonitor *root, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of monitors to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all monitors has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all monitors + * have been processed, and zero when more work + * is needed. * */ int erts_monitor_tree_foreach_yielding(ErtsMonitor *root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /** * * @brief Delete all monitors from a monitor tree and call a function for * each monitor * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * @param[in,out] root Pointer to pointer to root of monitor tree * @@ -866,7 +871,7 @@ int erts_monitor_tree_foreach_yielding(ErtsMonitor *root, * */ void erts_monitor_tree_foreach_delete(ErtsMonitor **root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg); /** @@ -874,9 +879,10 @@ void erts_monitor_tree_foreach_delete(ErtsMonitor **root, * @brief Delete all monitors from a monitor tree and call a function for * each monitor * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -899,18 +905,18 @@ void erts_monitor_tree_foreach_delete(ErtsMonitor **root, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of monitors to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all monitors has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all monitors + * have been processed, and zero when more work + * is needed. * */ int erts_monitor_tree_foreach_delete_yielding(ErtsMonitor **root, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /* * --- Monitor list operations -- @@ -920,7 +926,7 @@ int erts_monitor_tree_foreach_delete_yielding(ErtsMonitor **root, * * @brief Insert a monitor in a monitor list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is not part of any list or tree * If the above is not true, bad things will happen. * @@ -935,7 +941,7 @@ ERTS_GLB_INLINE void erts_monitor_list_insert(ErtsMonitor **list, ErtsMonitor *m * * @brief Delete a monitor from a monitor list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is part of the list * If the above is not true, bad things will happen. * @@ -980,7 +986,7 @@ ERTS_GLB_INLINE ErtsMonitor *erts_monitor_list_last(ErtsMonitor *list); * * @brief Call a function for each monitor in a monitor list * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor * in the tree referred to by 'list'. * @@ -993,7 +999,7 @@ ERTS_GLB_INLINE ErtsMonitor *erts_monitor_list_last(ErtsMonitor *list); * */ void erts_monitor_list_foreach(ErtsMonitor *list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg); /** @@ -1001,9 +1007,10 @@ void erts_monitor_list_foreach(ErtsMonitor *list, * @brief Call a function for each monitor in a monitor list. Yield * if lots of monitors exist. * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1026,25 +1033,25 @@ void erts_monitor_list_foreach(ErtsMonitor *list, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of monitors to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all monitors has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all monitors + * have been processed, and zero when more work + * is needed. * */ int erts_monitor_list_foreach_yielding(ErtsMonitor *list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /** * * @brief Delete all monitors from a monitor list and call a function for * each monitor * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor * in the tree referred to by 'root'. * @@ -1057,7 +1064,7 @@ int erts_monitor_list_foreach_yielding(ErtsMonitor *list, * */ void erts_monitor_list_foreach_delete(ErtsMonitor **list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg); /** @@ -1065,9 +1072,10 @@ void erts_monitor_list_foreach_delete(ErtsMonitor **list, * @brief Delete all monitors from a monitor list and call a function for * each monitor * - * The funcion 'func' will be called with a pointer to a monitor + * The function 'func' will be called with a pointer to a monitor * as first argument and 'arg' as second argument for each monitor - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1090,18 +1098,18 @@ void erts_monitor_list_foreach_delete(ErtsMonitor **list, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of monitors to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all monitors has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all monitors + * have been processed, and zero when more work + * is needed. * */ int erts_monitor_list_foreach_delete_yielding(ErtsMonitor **list, - void (*func)(ErtsMonitor *, void *), + ErtsMonitorFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /* * --- Misc monitor operations --- @@ -1113,7 +1121,7 @@ int erts_monitor_list_foreach_delete_yielding(ErtsMonitor **list, * * Can create all types of monitors * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'ref' is an internal ordinary reference if type is ERTS_MON_TYPE_PROC, * ERTS_MON_TYPE_PORT, ERTS_MON_TYPE_TIME_OFFSET, or ERTS_MON_TYPE_RESOURCE * - 'ref' is NIL if type is ERTS_MON_TYPE_NODE, ERTS_MON_TYPE_NODES, or @@ -1199,7 +1207,7 @@ ERTS_GLB_INLINE int erts_monitor_is_in_table(ErtsMonitor *mon); * When both the origin and the target part of the monitor have * been released the monitor structure will be deallocated. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is not part of any list or tree * - 'mon' is not referred to by any other structures * If the above are not true, bad things will happen. @@ -1216,7 +1224,7 @@ ERTS_GLB_INLINE void erts_monitor_release(ErtsMonitor *mon); * Release both the origin and target parts of the monitor * simultaneously and deallocate the structure. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - Neither the origin part nor the target part of the monitor * are not part of any list or tree * - Neither the origin part nor the target part of the monitor @@ -1232,7 +1240,7 @@ ERTS_GLB_INLINE void erts_monitor_release_both(ErtsMonitorData *mdp); * * @brief Insert monitor in dist monitor tree or list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor is not part of any list or tree * If the above is not true, bad things will happen. * @@ -1253,7 +1261,7 @@ ERTS_GLB_INLINE int erts_monitor_dist_insert(ErtsMonitor *mon, ErtsMonLnkDist *d * * @brief Delete monitor from dist monitor tree or list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' monitor earler has been inserted into 'dist' * If the above is not true, bad things will happen. * @@ -1291,7 +1299,7 @@ erts_monitor_set_dead_dist(ErtsMonitor *mon, Eterm nodename); * whole size of the monitor data structure is returned; otherwise, * half of the size is returned. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'mon' has not been released * If the above is not true, bad things will happen. * @@ -1507,6 +1515,8 @@ ERTS_GLB_INLINE ErtsMonitorSuspend *erts_monitor_suspend(ErtsMonitor *mon) typedef struct ErtsMonLnkNode__ ErtsLink; +typedef int (*ErtsLinkFunc)(ErtsLink *, void *, Sint); + typedef struct { ErtsLink a; ErtsLink b; @@ -1544,7 +1554,7 @@ ErtsLink *erts_link_tree_lookup(ErtsLink *root, Eterm item); * * @brief Lookup or insert a link in a link tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is not part of any tree or list * If the above is not true, bad things will happen. * @@ -1590,7 +1600,7 @@ ErtsLink *erts_link_tree_lookup_create(ErtsLink **root, int *created, * * @brief Insert a link in a link tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - no links with the same key that 'lnk' exist in the tree * - 'lnk' is not part of any list of tree * If the above are not true, bad things will happen. @@ -1606,7 +1616,7 @@ void erts_link_tree_insert(ErtsLink **root, ErtsLink *lnk); * * @brief Replace a link in a link tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'old' link and 'new' link have exactly the same key * - 'old' link is part of the tree * - 'new' link is not part of any tree or list @@ -1630,7 +1640,7 @@ void erts_link_tree_replace(ErtsLink **root, ErtsLink *old, ErtsLink *new); * the tree and 'lnk' has a lower address than the link in the * tree, the existing link in the tree is replaced by 'lnk'. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is not part of any tree or list * If the above are not true, bad things will happen. * @@ -1649,7 +1659,7 @@ ERTS_GLB_INLINE ErtsLink *erts_link_tree_insert_addr_replace(ErtsLink **root, * * @brief Delete a link from a link tree * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is part of the tree * If the above is not true, bad things will happen. * @@ -1668,7 +1678,7 @@ void erts_link_tree_delete(ErtsLink **root, ErtsLink *lnk); * If link 'lnk' is not in the tree, another link with the same * key as 'lnk' is deleted from the tree if such a link exist. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - if 'lnk' link is part of a tree or list, it is part of this tree * If the above is not true, bad things will happen. * @@ -1687,7 +1697,7 @@ ERTS_GLB_INLINE ErtsLink *erts_link_tree_key_delete(ErtsLink **root, ErtsLink *l * * @brief Call a function for each link in a link tree * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link * in the tree referred to by 'root'. * @@ -1700,7 +1710,7 @@ ERTS_GLB_INLINE ErtsLink *erts_link_tree_key_delete(ErtsLink **root, ErtsLink *l * */ void erts_link_tree_foreach(ErtsLink *root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc, void *arg); /** @@ -1708,9 +1718,10 @@ void erts_link_tree_foreach(ErtsLink *root, * @brief Call a function for each link in a link tree. Yield if lots * of links exist. * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1733,25 +1744,25 @@ void erts_link_tree_foreach(ErtsLink *root, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of links to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all links has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all links + * have been processed, and zero when more work + * is needed. * */ int erts_link_tree_foreach_yielding(ErtsLink *root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /** * * @brief Delete all links from a link tree and call a function for * each link * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link * in the tree referred to by 'root'. * @@ -1764,7 +1775,7 @@ int erts_link_tree_foreach_yielding(ErtsLink *root, * */ void erts_link_tree_foreach_delete(ErtsLink **root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg); /** @@ -1772,9 +1783,10 @@ void erts_link_tree_foreach_delete(ErtsLink **root, * @brief Delete all links from a link tree and call a function for * each link * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1797,18 +1809,18 @@ void erts_link_tree_foreach_delete(ErtsLink **root, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of links to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all links has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all links + * have been processed, and zero when more work + * is needed. * */ int erts_link_tree_foreach_delete_yielding(ErtsLink **root, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /* * --- Link list operations --- @@ -1818,7 +1830,7 @@ int erts_link_tree_foreach_delete_yielding(ErtsLink **root, * * @brief Insert a link in a link list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is not part of any list or tree * If the above is not true, bad things will happen. * @@ -1833,7 +1845,7 @@ ERTS_GLB_INLINE void erts_link_list_insert(ErtsLink **list, ErtsLink *lnk); * * @brief Delete a link from a link list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is part of the list * If the above is not true, bad things will happen. * @@ -1878,7 +1890,7 @@ ERTS_GLB_INLINE ErtsLink *erts_link_list_last(ErtsLink *list); * * @brief Call a function for each link in a link list * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link * in the tree referred to by 'list'. * @@ -1891,7 +1903,7 @@ ERTS_GLB_INLINE ErtsLink *erts_link_list_last(ErtsLink *list); * */ void erts_link_list_foreach(ErtsLink *list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg); /** @@ -1899,9 +1911,10 @@ void erts_link_list_foreach(ErtsLink *list, * @brief Call a function for each link in a link list. Yield * if lots of links exist. * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1924,25 +1937,25 @@ void erts_link_list_foreach(ErtsLink *list, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of links to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all links has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all links + * have been processed, and zero when more work + * is needed. * */ int erts_link_list_foreach_yielding(ErtsLink *list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /** * * @brief Delete all links from a link list and call a function for * each link * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link * in the tree referred to by 'root'. * @@ -1955,7 +1968,7 @@ int erts_link_list_foreach_yielding(ErtsLink *list, * */ void erts_link_list_foreach_delete(ErtsLink **list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg); /** @@ -1963,9 +1976,10 @@ void erts_link_list_foreach_delete(ErtsLink **list, * @brief Delete all links from a link list and call a function for * each link * - * The funcion 'func' will be called with a pointer to a link + * The function 'func' will be called with a pointer to a link * as first argument and 'arg' as second argument for each link - * in the tree referred to by 'root'. + * in the tree referred to by 'root'. It should return the number of + * reductions the operator took to perform. * * It is assumed that: * - *yspp equals NULL on first call @@ -1988,18 +2002,18 @@ void erts_link_list_foreach_delete(ErtsLink **list, * *yspp should be NULL. When done *yspp * will be NULL. * - * @param[in] limit Maximum amount of links to process - * before yielding. + * @param[in] reds Reductions available to execute before yielding. * - * @returns A non-zero value when all links has been - * processed, and zero when more work is needed. + * @returns The unconsumed reductions when all links + * have been processed, and zero when more work + * is needed. * */ int erts_link_list_foreach_delete_yielding(ErtsLink **list, - void (*func)(ErtsLink *, void *), + ErtsLinkFunc func, void *arg, void **vyspp, - Sint limit); + Sint reds); /* * --- Misc link operations --- @@ -2011,7 +2025,7 @@ int erts_link_list_foreach_delete_yielding(ErtsLink **list, * * Can create all types of links * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'ref' is an internal ordinary reference if type is ERTS_MON_TYPE_PROC, * ERTS_MON_TYPE_PORT, ERTS_MON_TYPE_TIME_OFFSET, or ERTS_MON_TYPE_RESOURCE * - 'ref' is NIL if type is ERTS_MON_TYPE_NODE or ERTS_MON_TYPE_NODES @@ -2081,7 +2095,7 @@ ERTS_GLB_INLINE int erts_link_is_in_table(ErtsLink *lnk); * When both link halves part of the link have been released the link * structure will be deallocated. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is not part of any list or tree * - 'lnk' is not referred to by any other structures * If the above are not true, bad things will happen. @@ -2098,7 +2112,7 @@ ERTS_GLB_INLINE void erts_link_release(ErtsLink *lnk); * Release both halves of a link simultaneously and deallocate * the structure. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - Neither of the parts of the link are part of any list or tree * - Neither of the parts of the link or the link data structure * are referred to by any other structures @@ -2113,7 +2127,7 @@ ERTS_GLB_INLINE void erts_link_release_both(ErtsLinkData *ldp); * * @brief Insert link in dist link list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link is not part of any list or tree * If the above is not true, bad things will happen. * @@ -2134,7 +2148,7 @@ ERTS_GLB_INLINE int erts_link_dist_insert(ErtsLink *lnk, ErtsMonLnkDist *dist); * * @brief Delete link from dist link list * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' link earler has been inserted into 'dist' * If the above is not true, bad things will happen. * @@ -2172,7 +2186,7 @@ erts_link_set_dead_dist(ErtsLink *lnk, Eterm nodename); * whole size of the link data structure is returned; otherwise, * half of the size is returned. * - * When the funcion is called it is assumed that: + * When the function is called it is assumed that: * - 'lnk' has not been released * If the above is not true, bad things will happen. * diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index a48d0391f6..4f317c9b25 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -2357,12 +2357,13 @@ rmon_refc_read(ErtsResourceMonitors *rms) return rms->refc & ERTS_RESOURCE_REFC_MASK; } -static void dtor_demonitor(ErtsMonitor* mon, void* context) +static int dtor_demonitor(ErtsMonitor* mon, void* context, Sint reds) { ASSERT(erts_monitor_is_origin(mon)); ASSERT(is_internal_pid(mon->other.item)); erts_proc_sig_send_demonitor(mon); + return 1; } # define NIF_RESOURCE_DTOR &nif_resource_dtor diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 18ed782ae3..b7dbe625a2 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -1544,16 +1544,18 @@ static void insert_monitor_data(ErtsMonitor *mon, int type, Eterm id) mdp->origin.flags |= ERTS_ML_FLG_DBG_VISITED; } -static void insert_monitor(ErtsMonitor *mon, void *idp) +static int insert_monitor(ErtsMonitor *mon, void *idp, Sint reds) { Eterm id = *((Eterm *) idp); insert_monitor_data(mon, MONITOR_REF, id); + return 1; } -static void clear_visited_monitor(ErtsMonitor *mon, void *p) +static int clear_visited_monitor(ErtsMonitor *mon, void *p, Sint reds) { ErtsMonitorData *mdp = erts_monitor_to_data(mon); mdp->origin.flags &= ~ERTS_ML_FLG_DBG_VISITED; + return 1; } static void @@ -1621,16 +1623,18 @@ static void insert_link_data(ErtsLink *lnk, int type, Eterm id) ldp->a.flags |= ERTS_ML_FLG_DBG_VISITED; } -static void insert_link(ErtsLink *lnk, void *idp) +static int insert_link(ErtsLink *lnk, void *idp, Sint reds) { Eterm id = *((Eterm *) idp); insert_link_data(lnk, LINK_REF, id); + return 1; } -static void clear_visited_link(ErtsLink *lnk, void *p) +static int clear_visited_link(ErtsLink *lnk, void *p, Sint reds) { ErtsLinkData *ldp = erts_link_to_data(lnk); ldp->a.flags &= ~ERTS_ML_FLG_DBG_VISITED; + return 1; } static void @@ -1798,18 +1802,20 @@ insert_sig_offheap(ErlOffHeap *ohp, void *arg) insert_offheap(ohp, SIGNAL_REF, proc->common.id); } -static void -insert_sig_monitor(ErtsMonitor *mon, void *arg) +static int +insert_sig_monitor(ErtsMonitor *mon, void *arg, Sint reds) { Process *proc = arg; insert_monitor_data(mon, SIGNAL_REF, proc->common.id); + return 1; } -static void -insert_sig_link(ErtsLink *lnk, void *arg) +static int +insert_sig_link(ErtsLink *lnk, void *arg, Sint reds) { Process *proc = arg; insert_link_data(lnk, SIGNAL_REF, proc->common.id); + return 1; } static void diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c index 18418a76e1..668ee4ce96 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.c +++ b/erts/emulator/beam/erl_proc_sig_queue.c @@ -3590,9 +3590,10 @@ stretch_limit(Process *c_p, ErtsSigRecvTracing *tp, int -erts_proc_sig_handle_exit(Process *c_p, int *redsp) +erts_proc_sig_handle_exit(Process *c_p, Sint *redsp) { - int cnt, limit; + int cnt; + Sint limit; ErtsMessage *sig, ***next_nm_sig; ERTS_HDBG_CHECK_SIGNAL_PRIV_QUEUE(c_p, 0); @@ -3673,7 +3674,7 @@ erts_proc_sig_handle_exit(Process *c_p, int *redsp) case ERTS_SIG_Q_OP_MONITOR: { ErtsProcExitContext pectxt = {c_p, am_noproc}; erts_proc_exit_handle_monitor((ErtsMonitor *) sig, - (void *) &pectxt); + (void *) &pectxt, -1); cnt += 4; break; } @@ -3687,7 +3688,7 @@ erts_proc_sig_handle_exit(Process *c_p, int *redsp) case ERTS_SIG_Q_OP_LINK: { ErtsProcExitContext pectxt = {c_p, am_noproc}; - erts_proc_exit_handle_link((ErtsLink *) sig, (void *) &pectxt); + erts_proc_exit_handle_link((ErtsLink *) sig, (void *) &pectxt, -1); break; } @@ -4449,8 +4450,8 @@ void erts_proc_sig_debug_foreach_sig(Process *c_p, void (*msg_func)(ErtsMessage *, void *), void (*oh_func)(ErlOffHeap *, void *), - void (*mon_func)(ErtsMonitor *, void *), - void (*lnk_func)(ErtsLink *, void *), + ErtsMonitorFunc mon_func, + ErtsLinkFunc lnk_func, void *arg) { ErtsMessage *queue[] = {c_p->sig_qs.first, c_p->sig_qs.cont, c_p->sig_inq.first}; @@ -4486,13 +4487,13 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, case ERTS_LNK_TYPE_PORT: case ERTS_LNK_TYPE_PROC: case ERTS_LNK_TYPE_DIST_PROC: - lnk_func((ErtsLink *) sig, arg); + lnk_func((ErtsLink *) sig, arg, -1); break; case ERTS_MON_TYPE_PORT: case ERTS_MON_TYPE_PROC: case ERTS_MON_TYPE_DIST_PROC: case ERTS_MON_TYPE_NODE: - mon_func((ErtsMonitor *) sig, arg); + mon_func((ErtsMonitor *) sig, arg, -1); break; default: ERTS_INTERNAL_ERROR("Unexpected sig type"); @@ -4513,7 +4514,7 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, /* Fall through... */ case ERTS_SIG_Q_OP_MONITOR: - mon_func((ErtsMonitor *) sig, arg); + mon_func((ErtsMonitor *) sig, arg, -1); break; case ERTS_SIG_Q_OP_UNLINK: @@ -4525,7 +4526,7 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, /* Fall through... */ case ERTS_SIG_Q_OP_LINK: - lnk_func((ErtsLink *) sig, arg); + lnk_func((ErtsLink *) sig, arg, -1); break; case ERTS_SIG_Q_OP_GROUP_LEADER: { diff --git a/erts/emulator/beam/erl_proc_sig_queue.h b/erts/emulator/beam/erl_proc_sig_queue.h index 6b065a7add..5a02708bb7 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.h +++ b/erts/emulator/beam/erl_proc_sig_queue.h @@ -740,7 +740,7 @@ erts_proc_sig_handle_incoming(Process *c_p, erts_aint32_t *statep, * queue. */ int -erts_proc_sig_handle_exit(Process *c_p, int *redsp); +erts_proc_sig_handle_exit(Process *c_p, Sint *redsp); /** * @@ -970,8 +970,8 @@ void erts_proc_sig_debug_foreach_sig(Process *c_p, void (*msg_func)(ErtsMessage *, void *), void (*oh_func)(ErlOffHeap *, void *), - void (*mon_func)(ErtsMonitor *, void *), - void (*lnk_func)(ErtsLink *, void *), + ErtsMonitorFunc mon_func, + ErtsLinkFunc lnk_func, void *arg); extern Process *erts_dirty_process_signal_handler; diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index c2799f6612..f9cc85b6d7 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -12055,8 +12055,8 @@ erts_set_self_exiting(Process *c_p, Eterm reason) add2runq(enqueue, enq_prio, c_p, state, NULL); } -void -erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt) +int +erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) { Process *c_p = ((ErtsProcExitContext *) vctxt)->c_p; Eterm reason = ((ErtsProcExitContext *) vctxt)->reason; @@ -12215,10 +12215,11 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt) erts_monitor_release_both(mdp); else if (mon) erts_monitor_release(mon); + return 1; } -void -erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt) +int +erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds) { Process *c_p = ((ErtsProcExitContext *) vctxt)->c_p; Eterm reason = ((ErtsProcExitContext *) vctxt)->reason; @@ -12288,6 +12289,7 @@ erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt) erts_link_release_both(ldp); else if (lnk) erts_link_release(lnk); + return 1; } /* this function fishishes a process and propagates exit messages - called diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 43937f216c..cdc03cf940 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1820,8 +1820,8 @@ typedef struct { Process *c_p; Eterm reason; } ErtsProcExitContext; -void erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt); -void erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt); +int erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds); +int erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds); Eterm erts_get_process_priority(erts_aint32_t state); Eterm erts_set_process_priority(Process *p, Eterm prio); diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c index 10ea401022..46e460582c 100644 --- a/erts/emulator/beam/erl_process_dump.c +++ b/erts/emulator/beam/erl_process_dump.c @@ -100,16 +100,18 @@ erts_deep_process_dump(fmtfn_t to, void *to_arg) dump_binaries(to, to_arg, all_binaries); } -static void -monitor_size(ErtsMonitor *mon, void *vsize) +static int +monitor_size(ErtsMonitor *mon, void *vsize, Sint reds) { *((Uint *) vsize) += erts_monitor_size(mon); + return 1; } -static void -link_size(ErtsMonitor *lnk, void *vsize) +static int +link_size(ErtsMonitor *lnk, void *vsize, Sint reds) { *((Uint *) vsize) += erts_link_size(lnk); + return 1; } Uint erts_process_memory(Process *p, int include_sigs_in_transit) diff --git a/erts/emulator/beam/erl_rbtree.h b/erts/emulator/beam/erl_rbtree.h index e50abf5cec..ce401fa7e7 100644 --- a/erts/emulator/beam/erl_rbtree.h +++ b/erts/emulator/beam/erl_rbtree.h @@ -161,7 +161,7 @@ * * - void _rbt_foreach( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element. * Order is undefined. @@ -170,7 +170,7 @@ * * - void _rbt_foreach_destroy( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element. * Order is undefined. Each element should be destroyed @@ -180,39 +180,46 @@ * * - int _rbt_foreach_yielding( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element. * Order is undefined. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. The tree should not be - * modified until all of it has been processed. + * Yield when 'reds' reductions has been processed. The 'op' + * function return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op'. * * - int _rbt_foreach_destroy_yielding( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element. * Order is undefined. Each element should be destroyed * by 'op'. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. + * Yield when 'reds' reductions has been processed. The 'op' + * function return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op'. * * - void _rbt_foreach_small( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element from * smallest towards larger elements. @@ -221,7 +228,7 @@ * * - void _rbt_foreach_large( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element from * largest towards smaller elements. @@ -230,40 +237,46 @@ * * - int _rbt_foreach_small_yielding( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element from * smallest towards larger elements. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. The tree should not be - * modified until all of it has been processed. + * Yield when 'reds' reductions has been processed. The 'op' + * function return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op'. * * - int _rbt_foreach_large_yielding( * ERTS_RBT_T *tree, - * void (*op)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element from * largest towards smaller elements. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. The tree should not be - * modified until all of it has been processed. + * Yield when 'reds' reductions has been processed. The 'op' + * function return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op'. * * - void _rbt_foreach_small_destroy( * ERTS_RBT_T **tree, - * void (*op)(ERTS_RBT_T *, void *), - * void (*destr)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), + * int (*destr)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element from * smallest towards larger elements. @@ -277,8 +290,8 @@ * * - void _rbt_foreach_large_destroy( * ERTS_RBT_T **tree, - * void (*op)(ERTS_RBT_T *, void *), - * void (*destr)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), + * int (*destr)(ERTS_RBT_T *, void *), * void *arg); * Operate by calling the operator 'op' on each element from * largest towards smaller elements. @@ -292,11 +305,11 @@ * * - int _rbt_foreach_small_destroy_yielding( * ERTS_RBT_T **tree, - * void (*op)(ERTS_RBT_T *, void *), - * void (*destr)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), + * int (*destr)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element from * smallest towards larger elements. * @@ -305,20 +318,23 @@ * Note that elements are often destroyed in another order * than the order that the elements are operated on. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. The tree should not be - * modified until all of it has been processed. + * Yield when 'reds' reductions has been processed. The 'op' and + * 'destr' functions return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op' and 'destroy'. * * - int _rbt_foreach_large_destroy_yielding( * ERTS_RBT_T **tree, - * void (*op)(ERTS_RBT_T *, void *), - * void (*destr)(ERTS_RBT_T *, void *), + * int (*op)(ERTS_RBT_T *, void *), + * int (*destr)(ERTS_RBT_T *, void *), * void *arg, * _rbt_yield_state_t *ystate, - * Sint ylimit); + * Sint reds); * Operate by calling the operator 'op' on each element from * largest towards smaller elements. * @@ -327,10 +343,13 @@ * Note that elements are often destroyed in another order * than the order that the elements are operated on. * - * Yield when 'ylimit' elements has been processed. True is - * returned when yielding, and false is returned when - * the whole tree has been processed. The tree should not be - * modified until all of it has been processed. + * Yield when 'reds' reductions has been processed. The 'op' and + * 'destr' functions return the number of reductions that each element + * took to process. The number of reductions remaining is returned, + * meaning that if 0 is returned, there are more elements to be + * processed. If a value greater than 0 is returned the foreach has + * ended. The tree should not be modified until all of it has been + * processed. * * 'arg' is passed as argument to 'op' and 'destroy'. * @@ -447,17 +466,6 @@ # define ERTS_RBT_API_INLINE__ ERTS_INLINE #endif -#ifndef ERTS_RBT_YIELD_STAT_INITER -# define ERTS_RBT_YIELD_STAT_INITER {NULL, 0} -#endif -#ifndef ERTS_RBT_YIELD_STAT_INIT -# define ERTS_RBT_YIELD_STAT_INIT(YS) \ - do { \ - (YS)->x = NULL; \ - (YS)->up = 0; \ - } while (0) -#endif - #define ERTS_RBT_CONCAT_MACRO_VALUES___(X, Y) \ X ## Y #define ERTS_RBT_CONCAT_MACRO_VALUES__(X, Y) \ @@ -470,8 +478,38 @@ typedef struct { ERTS_RBT_T *x; int up; +#ifdef DEBUG + int debug_red_adj; +#endif } ERTS_RBT_YIELD_STATE_T__; +#define ERTS_RBT_CALLBACK_FOREACH_FUNC(NAME) int (*NAME)(ERTS_RBT_T *, void *, Sint) + +#ifndef ERTS_RBT_YIELD_STAT_INITER +# ifdef DEBUG +# define ERTS_RBT_YIELD_STAT_INITER {NULL, 0, CONTEXT_REDS} +# else +# define ERTS_RBT_YIELD_STAT_INITER {NULL, 0} +# endif +#endif +#ifndef ERTS_RBT_YIELD_STAT_INIT +# define ERTS_RBT_YIELD_STAT_INIT__(YS) \ + do { \ + (YS)->x = NULL; \ + (YS)->up = 0; \ + } while (0) +# ifdef DEBUG +# define ERTS_RBT_YIELD_STAT_INIT(YS) \ + do { \ + ERTS_RBT_YIELD_STAT_INIT__(YS); \ + (YS)->debug_red_adj = CONTEXT_REDS; \ + } while(0) +# else +# define ERTS_RBT_YIELD_STAT_INIT(YS) ERTS_RBT_YIELD_STAT_INIT__(YS) +# endif +#endif + + #define ERTS_RBT_FUNC__(Name) \ ERTS_RBT_CONCAT_MACRO_VALUES__(ERTS_RBT_PREFIX, _rbt_ ## Name) @@ -1302,11 +1340,11 @@ ERTS_RBT_FUNC__(largest)(ERTS_RBT_T *root) static ERTS_INLINE int ERTS_RBT_FUNC__(foreach_unordered__)(ERTS_RBT_T **root, int destroying, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg, - int yielding, + int yielding, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { ERTS_RBT_T *c, *p, *x; @@ -1314,13 +1352,17 @@ ERTS_RBT_FUNC__(foreach_unordered__)(ERTS_RBT_T **root, if (yielding && ystate->x) { x = ystate->x; +#ifdef DEBUG + if (ystate->debug_red_adj > 0) + ystate->debug_red_adj -= 100; +#endif ERTS_RBT_ASSERT(ystate->up); goto restart_up; } else { x = *root; if (!x) - return 0; + return reds; if (destroying) *root = NULL; } @@ -1346,10 +1388,10 @@ ERTS_RBT_FUNC__(foreach_unordered__)(ERTS_RBT_T **root, #ifdef ERTS_RBT_DEBUG int cdir; #endif - if (yielding && ylimit-- <= 0) { + if (yielding && reds <= 0) { ystate->x = x; ystate->up = 1; - return 1; + return 0; } restart_up: @@ -1375,14 +1417,20 @@ ERTS_RBT_FUNC__(foreach_unordered__)(ERTS_RBT_T **root, } #endif - (*op)(x, arg); + reds -= (*op)(x, arg, reds); +#ifdef DEBUG + if (yielding) + reds -= ystate->debug_red_adj; +#endif if (!p) { + /* Done */ if (yielding) { ystate->x = NULL; ystate->up = 0; + return reds <= 0 ? 1 : reds; } - return 0; /* Done */ + return 1; } c = ERTS_RBT_GET_RIGHT(p); @@ -1407,20 +1455,26 @@ static ERTS_INLINE int ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, int from_small, int destroying, - void (*op)(ERTS_RBT_T *, void *), - void (*destroy)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), + ERTS_RBT_CALLBACK_FOREACH_FUNC(destroy), void *arg, - int yielding, + int yielding, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { ERTS_RBT_T *c, *p, *x; ERTS_RBT_ASSERT(!yielding || ystate); ERTS_RBT_ASSERT(!destroying || destroy); + ERTS_RBT_ASSERT(!yielding || yop); + ERTS_RBT_ASSERT(yielding || op); if (yielding && ystate->x) { x = ystate->x; +#ifdef DEBUG + if (ystate->debug_red_adj > 0) + ystate->debug_red_adj -= 100; +#endif if (ystate->up) goto restart_up; else @@ -1429,7 +1483,7 @@ ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, else { x = *root; if (!x) - return 0; + return reds; if (destroying) *root = NULL; } @@ -1445,12 +1499,16 @@ ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, x = c; } - (*op)(x, arg); + reds -= (*op)(x, arg, reds); +#ifdef DEBUG + if (yielding) + reds -= ystate->debug_red_adj; +#endif - if (yielding && --ylimit <= 0) { + if (yielding && reds <= 0) { ystate->x = x; ystate->up = 0; - return 1; + return 0; } restart_down: @@ -1472,12 +1530,16 @@ ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, ? ERTS_RBT_GET_LEFT(p) : ERTS_RBT_GET_RIGHT(p)) == x); - (*op)(p, arg); + reds -= (*op)(p, arg, reds); +#ifdef DEBUG + if (yielding) + reds -= ystate->debug_red_adj; +#endif - if (yielding && --ylimit <= 0) { + if (yielding && reds <= 0) { ystate->x = x; ystate->up = 1; - return 1; + return 0; restart_up: p = ERTS_RBT_GET_PARENT(x); } @@ -1510,15 +1572,20 @@ ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, } #endif - (*destroy)(x, arg); + reds -= (*destroy)(x, arg, reds); +#ifdef DEBUG + if (yielding) + reds -= ystate->debug_red_adj; +#endif } if (!p) { if (yielding) { ystate->x = NULL; ystate->up = 0; + return reds <= 0 ? 1 : reds; } - return 0; /* Done */ + return 1; /* Done */ } x = p; } @@ -1531,7 +1598,7 @@ ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg) { (void) ERTS_RBT_FUNC__(foreach_unordered__)(&root, 0, op, arg, @@ -1544,7 +1611,7 @@ ERTS_RBT_FUNC__(foreach)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach_small)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg) { (void) ERTS_RBT_FUNC__(foreach_ordered__)(&root, 1, 0, @@ -1558,7 +1625,7 @@ ERTS_RBT_FUNC__(foreach_small)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach_large)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg) { (void) ERTS_RBT_FUNC__(foreach_ordered__)(&root, 0, 0, @@ -1572,13 +1639,13 @@ ERTS_RBT_FUNC__(foreach_large)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_yielding)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_unordered__)(&root, 0, op, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_YIELDING */ @@ -1587,14 +1654,14 @@ ERTS_RBT_FUNC__(foreach_yielding)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_small_yielding)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_ordered__)(&root, 1, 0, op, NULL, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_SMALL_YIELDING */ @@ -1603,14 +1670,14 @@ ERTS_RBT_FUNC__(foreach_small_yielding)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_large_yielding)(ERTS_RBT_T *root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_ordered__)(&root, 0, 0, op, NULL, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_LARGE_YIELDING */ @@ -1619,11 +1686,11 @@ ERTS_RBT_FUNC__(foreach_large_yielding)(ERTS_RBT_T *root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach_destroy)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg) { (void) ERTS_RBT_FUNC__(foreach_unordered__)(root, 1, op, arg, - 0, NULL, 0); + 0, NULL, 0); } #endif /* ERTS_RBT_WANT_FOREACH_DESTROY */ @@ -1632,8 +1699,8 @@ ERTS_RBT_FUNC__(foreach_destroy)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach_small_destroy)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), - void (*destr)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), + ERTS_RBT_CALLBACK_FOREACH_FUNC(destr), void *arg) { (void) ERTS_RBT_FUNC__(foreach_ordered__)(root, 1, 1, @@ -1647,8 +1714,8 @@ ERTS_RBT_FUNC__(foreach_small_destroy)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ void ERTS_RBT_FUNC__(foreach_large_destroy)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), - void (*destr)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), + ERTS_RBT_CALLBACK_FOREACH_FUNC(destr), void *arg) { (void) ERTS_RBT_FUNC__(foreach_ordered__)(root, 0, 1, @@ -1662,13 +1729,13 @@ ERTS_RBT_FUNC__(foreach_large_destroy)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_destroy_yielding)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_unordered__)(root, 1, op, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING */ @@ -1677,15 +1744,15 @@ ERTS_RBT_FUNC__(foreach_destroy_yielding)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_small_destroy_yielding)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), - void (*destr)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), + ERTS_RBT_CALLBACK_FOREACH_FUNC(destr), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_ordered__)(root, 1, 1, op, destr, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING */ @@ -1694,15 +1761,15 @@ ERTS_RBT_FUNC__(foreach_small_destroy_yielding)(ERTS_RBT_T **root, static ERTS_RBT_API_INLINE__ int ERTS_RBT_FUNC__(foreach_large_destroy_yielding)(ERTS_RBT_T **root, - void (*op)(ERTS_RBT_T *, void *), - void (*destr)(ERTS_RBT_T *, void *), + ERTS_RBT_CALLBACK_FOREACH_FUNC(op), + ERTS_RBT_CALLBACK_FOREACH_FUNC(destr), void *arg, ERTS_RBT_YIELD_STATE_T__ *ystate, - Sint ylimit) + Sint reds) { return ERTS_RBT_FUNC__(foreach_ordered__)(root, 0, 1, op, destr, arg, - 1, ystate, ylimit); + 1, ystate, reds); } #endif /* ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING */ @@ -1855,6 +1922,7 @@ ERTS_RBT_FUNC__(hdbg_check_tree)(ERTS_RBT_T *root, ERTS_RBT_T *n) #ifdef ERTS_RBT_UNDEF # undef ERTS_RBT_PREFIX # undef ERTS_RBT_T +# undef ERTS_RBT_CALLBACK_FOREACH_FUNC # undef ERTS_RBT_KEY_T # undef ERTS_RBT_FLAGS_T # undef ERTS_RBT_INIT_EMPTY_TNODE diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index 29c698e34f..d26ea19494 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -1911,8 +1911,8 @@ typedef struct { ErtsTimeOffsetMonitorInfo *to_mon_info; } ErtsTimeOffsetMonitorContext; -static void -save_time_offset_monitor(ErtsMonitor *mon, void *vcntxt) +static int +save_time_offset_monitor(ErtsMonitor *mon, void *vcntxt, Sint reds) { ErtsTimeOffsetMonitorContext *cntxt; ErtsMonitorData *mdp = erts_monitor_to_data(mon); @@ -1935,7 +1935,7 @@ save_time_offset_monitor(ErtsMonitor *mon, void *vcntxt) cntxt->to_mon_info[mix].ref = make_internal_ref(&cntxt->to_mon_info[mix].heap[0]); - + return 1; } static void diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 7322239a73..6a2be52e11 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -3644,20 +3644,22 @@ typedef struct { Eterm reason; } ErtsPortExitContext; -static void link_port_exit(ErtsLink *lnk, void *vpectxt) +static int link_port_exit(ErtsLink *lnk, void *vpectxt, Sint reds) { ErtsPortExitContext *pectxt = vpectxt; erts_proc_sig_send_link_exit(NULL, pectxt->port_id, lnk, pectxt->reason, NIL); + return 1; } -static void monitor_port_exit(ErtsMonitor *mon, void *vpectxt) +static int monitor_port_exit(ErtsMonitor *mon, void *vpectxt, Sint reds) { ErtsPortExitContext *pectxt = vpectxt; if (erts_monitor_is_target(mon)) erts_proc_sig_send_monitor_down(mon, pectxt->reason); else erts_proc_sig_send_demonitor(mon); + return 1; } /* 'from' is sending 'this_port' an exit signal, (this_port must be internal). @@ -4836,7 +4838,7 @@ typedef struct { void *arg; } prt_one_lnk_data; -static void prt_one_monitor(ErtsMonitor *mon, void *vprtd) +static int prt_one_monitor(ErtsMonitor *mon, void *vprtd, Sint reds) { ErtsMonitorData *mdp = erts_monitor_to_data(mon); prt_one_lnk_data *prtd = (prt_one_lnk_data *) vprtd; @@ -4844,12 +4846,14 @@ static void prt_one_monitor(ErtsMonitor *mon, void *vprtd) erts_print(prtd->to, prtd->arg, "(%p,%T)", mon->other.ptr, mdp->ref); else erts_print(prtd->to, prtd->arg, "(%T,%T)", mon->other.item, mdp->ref); + return 1; } -static void prt_one_lnk(ErtsLink *lnk, void *vprtd) +static int prt_one_lnk(ErtsLink *lnk, void *vprtd, Sint reds) { prt_one_lnk_data *prtd = (prt_one_lnk_data *) vprtd; erts_print(prtd->to, prtd->arg, "%T", lnk->other.item); + return 1; } static void dump_port_state(fmtfn_t to, void *arg, erts_aint32_t state) diff --git a/erts/emulator/sys/common/erl_osenv.c b/erts/emulator/sys/common/erl_osenv.c index 6a16377736..f055c5f854 100644 --- a/erts/emulator/sys/common/erl_osenv.c +++ b/erts/emulator/sys/common/erl_osenv.c @@ -167,9 +167,10 @@ void erts_osenv_init(erts_osenv_t *env) { env->tree = NULL; } -static void destroy_foreach(env_rbtnode_t *node, void *_state) { +static int destroy_foreach(env_rbtnode_t *node, void *_state, Sint reds) { erts_free(ERTS_ALC_T_ENVIRONMENT, node); (void)_state; + return 1; } void erts_osenv_clear(erts_osenv_t *env) { @@ -182,7 +183,7 @@ struct __env_merge { erts_osenv_t *env; }; -static void merge_foreach(env_rbtnode_t *node, void *_state) { +static int merge_foreach(env_rbtnode_t *node, void *_state, Sint reds) { struct __env_merge *state = (struct __env_merge*)(_state); env_rbtnode_t *existing_node; @@ -191,6 +192,7 @@ static void merge_foreach(env_rbtnode_t *node, void *_state) { if(existing_node == NULL || state->overwrite_existing) { erts_osenv_put_native(state->env, &node->key, &node->value); } + return 1; } void erts_osenv_merge(erts_osenv_t *env, const erts_osenv_t *with, int overwrite) { @@ -208,7 +210,7 @@ struct __env_foreach_term { void *user_state; }; -static void foreach_term_wrapper(env_rbtnode_t *node, void *_state) { +static int foreach_term_wrapper(env_rbtnode_t *node, void *_state, Sint reds) { struct __env_foreach_term *state = (struct __env_foreach_term*)_state; Eterm key, value; @@ -218,6 +220,7 @@ static void foreach_term_wrapper(env_rbtnode_t *node, void *_state) { node->value.length, (byte*)node->value.data); state->user_callback(state->process, state->user_state, key, value); + return 1; } void erts_osenv_foreach_term(const erts_osenv_t *env, struct process *process, @@ -314,10 +317,11 @@ struct __env_foreach_native { void *user_state; }; -static void foreach_native_wrapper(env_rbtnode_t *node, void *_state) { +static int foreach_native_wrapper(env_rbtnode_t *node, void *_state, Sint reds) { struct __env_foreach_native *state = (struct __env_foreach_native*)_state; state->user_callback(state->user_state, &node->key, &node->value); + return 1; } void erts_osenv_foreach_native(const erts_osenv_t *env, void *state, -- cgit v1.2.3 From 45c57256d06b14bae7a4f19978a375e360b609cf Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Mon, 17 Dec 2018 10:59:50 +0100 Subject: erts: Yield later during process exit and allow free procs to run OTP-15610 --- erts/emulator/beam/beam_emu.c | 5 +- erts/emulator/beam/erl_alloc.types | 1 + erts/emulator/beam/erl_db.c | 16 +- erts/emulator/beam/erl_db.h | 2 +- erts/emulator/beam/erl_process.c | 623 +++++++++++++++++++++---------------- erts/etc/unix/etp-commands.in | 4 +- 6 files changed, 377 insertions(+), 274 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 4ef06464f4..90162a6543 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -885,19 +885,22 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array) #include "beam_warm.h" OpCase(normal_exit): { - SWAPOUT; + HEAVY_SWAPOUT; c_p->freason = EXC_NORMAL; c_p->arity = 0; /* In case this process will ever be garbed again. */ ERTS_UNREQ_PROC_MAIN_LOCK(c_p); erts_do_exit_process(c_p, am_normal); ERTS_REQ_PROC_MAIN_LOCK(c_p); + HEAVY_SWAPIN; goto do_schedule; } OpCase(continue_exit): { + HEAVY_SWAPOUT; ERTS_UNREQ_PROC_MAIN_LOCK(c_p); erts_continue_exit_process(c_p); ERTS_REQ_PROC_MAIN_LOCK(c_p); + HEAVY_SWAPIN; goto do_schedule; } diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types index 08dcc5ea9a..31f19d1b88 100644 --- a/erts/emulator/beam/erl_alloc.types +++ b/erts/emulator/beam/erl_alloc.types @@ -275,6 +275,7 @@ type ML_DIST STANDARD SYSTEM monitor_link_dist type PF3_ARGS SHORT_LIVED PROCESSES process_flag_3_arguments type SETUP_CONN_ARG SHORT_LIVED PROCESSES setup_connection_argument type LIST_TRAP SHORT_LIVED PROCESSES list_bif_trap_state +type CONT_EXIT_TRAP SHORT_LIVED PROCESSES continue_exit_trap_state type ENVIRONMENT SYSTEM SYSTEM environment diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index 0d570517ec..4132a54934 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -3701,7 +3701,7 @@ static SWord proc_cleanup_fixed_table(Process* p, DbFixation* fix) /* * erts_db_process_exiting() is called when a process terminates. * It returns 0 when completely done, and !0 when it wants to - * yield. c_p->u.terminate can hold a pointer to a state while + * yield. *yield_state can hold a pointer to a state while * yielding. */ #define ERTS_DB_INTERNAL_ERROR(LSTR) \ @@ -3709,7 +3709,7 @@ static SWord proc_cleanup_fixed_table(Process* p, DbFixation* fix) __FILE__, __LINE__) int -erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) +erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks, void **yield_state) { typedef struct { enum { @@ -3719,7 +3719,7 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) }op; DbTable *tb; } CleanupState; - CleanupState *state = (CleanupState *) c_p->u.terminate; + CleanupState *state = (CleanupState *) *yield_state; Eterm pid = c_p->common.id; CleanupState default_state; SWord initial_reds = ERTS_BIF_REDS_LEFT(c_p); @@ -3792,7 +3792,7 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) if (state != &default_state) erts_free(ERTS_ALC_T_DB_PROC_CLEANUP, state); - c_p->u.terminate = NULL; + *yield_state = NULL; BUMP_REDS(c_p, (initial_reds - reds)); return 0; @@ -3812,12 +3812,12 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) yield: if (state == &default_state) { - c_p->u.terminate = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP, - sizeof(CleanupState)); - sys_memcpy(c_p->u.terminate, (void*) state, sizeof(CleanupState)); + *yield_state = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP, + sizeof(CleanupState)); + sys_memcpy(*yield_state, (void*) state, sizeof(CleanupState)); } else - ASSERT(state == c_p->u.terminate); + ASSERT(state == *yield_state); return !0; } diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h index 5955d42aae..dc77fbb60c 100644 --- a/erts/emulator/beam/erl_db.h +++ b/erts/emulator/beam/erl_db.h @@ -111,7 +111,7 @@ typedef enum { } ErtsDbSpinCount; void init_db(ErtsDbSpinCount); -int erts_db_process_exiting(Process *, ErtsProcLocks); +int erts_db_process_exiting(Process *, ErtsProcLocks, void **); int erts_db_execute_free_fixation(Process*, DbFixation*); void db_info(fmtfn_t, void *, int); void erts_db_foreach_table(void (*)(DbTable *, void *), void *); diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index f9cc85b6d7..66af9574b8 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -735,12 +735,6 @@ erts_pre_init_process(void) #endif } -static void -release_process(void *vproc) -{ - erts_proc_dec_refc((Process *) vproc); -} - /* initialize the scheduler */ void erts_init_process(int ncpu, int proc_tab_size, int legacy_proc_tab) @@ -752,7 +746,7 @@ erts_init_process(int ncpu, int proc_tab_size, int legacy_proc_tab) erts_ptab_init_table(&erts_proc, ERTS_ALC_T_PROC_TABLE, - release_process, + NULL, (ErtsPTabElementCommon *) &erts_invalid_process.common, proc_tab_size, sizeof(Process), @@ -6519,8 +6513,7 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, n &= ~running_flgs; if ((!!(a & (ERTS_PSFLG_ACTIVE_SYS|ERTS_PSFLG_DIRTY_ACTIVE_SYS)) - | ((a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE)) - & !(a & ERTS_PSFLG_FREE)) { + | ((a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE))) { enqueue = check_enqueue_in_prio_queue(p, &enq_prio, &n, a); } a = erts_atomic32_cmpxchg_mb(&p->state, n, e); @@ -6555,7 +6548,6 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, else { Process* sched_p; - ASSERT(!(n & ERTS_PSFLG_FREE)); ASSERT(!(n & ERTS_PSFLG_SUSPENDED) || (n & (ERTS_PSFLG_ACTIVE_SYS | ERTS_PSFLG_DIRTY_ACTIVE_SYS))); @@ -6685,8 +6677,8 @@ change_proc_schedule_state(Process *p, enqueue = ERTS_ENQUEUE_NOT; - if (a & ERTS_PSFLG_FREE) - break; /* We don't want to schedule free processes... */ + if ((a & (ERTS_PSFLG_FREE|ERTS_PSFLG_ACTIVE)) == ERTS_PSFLG_FREE) + break; /* If free and not active, do not schedule */ if (clear_state_flags) n &= ~clear_state_flags; @@ -8131,7 +8123,8 @@ done: ErtsSchedSuspendResult erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal, int all) { - int resume_proc, ix, res, have_unlocked_plocks = 0; + ErtsSchedSuspendResult res; + int resume_proc, ix, have_unlocked_plocks = 0; ErtsProcList *plp; ErtsMultiSchedulingBlock *msbp; erts_aint32_t chng_flg; @@ -9629,7 +9622,8 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) while (1) { erts_aint32_t exp, new; - int run_process; + int run_process, not_running, exiting_on_normal_sched, + not_suspended, not_exiting_on_dirty_sched; new = exp = state; new &= psflg_band_mask; /* @@ -9638,29 +9632,33 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) * scheduler, and not suspended (and not in a * state where suspend should be ignored). */ - run_process = (((!(state & (ERTS_PSFLG_RUNNING - | ERTS_PSFLG_RUNNING_SYS - | ERTS_PSFLG_DIRTY_RUNNING - | ERTS_PSFLG_DIRTY_RUNNING_SYS - | ERTS_PSFLG_FREE))) - | (((state & (ERTS_PSFLG_RUNNING - - | ERTS_PSFLG_FREE - | ERTS_PSFLG_RUNNING_SYS - | ERTS_PSFLG_DIRTY_RUNNING_SYS - | ERTS_PSFLG_EXITING)) - == ERTS_PSFLG_EXITING) - & (!!is_normal_sched)) - ) - & ((state & (ERTS_PSFLG_SUSPENDED - | ERTS_PSFLG_EXITING - | ERTS_PSFLG_FREE - | ERTS_PSFLG_ACTIVE_SYS - | ERTS_PSFLG_DIRTY_ACTIVE_SYS)) - != ERTS_PSFLG_SUSPENDED) - & (!(state & ERTS_PSFLG_EXITING) - | (!!is_normal_sched)) - ); + not_running = !(state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_DIRTY_RUNNING + | ERTS_PSFLG_DIRTY_RUNNING_SYS + | ERTS_PSFLG_FREE)); + exiting_on_normal_sched = + ((state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_ACTIVE + | ERTS_PSFLG_RUNNING_SYS + | ERTS_PSFLG_DIRTY_RUNNING_SYS + | ERTS_PSFLG_EXITING)) + == (ERTS_PSFLG_EXITING|ERTS_PSFLG_ACTIVE)) + & (!!is_normal_sched); + + + not_suspended = ((state & (ERTS_PSFLG_SUSPENDED + | ERTS_PSFLG_EXITING + | ERTS_PSFLG_FREE + | ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_DIRTY_ACTIVE_SYS)) + != ERTS_PSFLG_SUSPENDED); + + not_exiting_on_dirty_sched = !(state & ERTS_PSFLG_EXITING) | (!!is_normal_sched); + + run_process = (not_running | exiting_on_normal_sched) + & not_suspended + & not_exiting_on_dirty_sched; if (run_process) { if (state & (ERTS_PSFLG_ACTIVE_SYS @@ -9951,7 +9949,7 @@ trace_schedule_in(Process *p, erts_aint32_t state) /* Clear tracer if it has been removed */ if (erts_is_tracer_proc_enabled(p, ERTS_PROC_LOCK_MAIN, &p->common)) { - if (state & ERTS_PSFLG_EXITING) { + if (state & ERTS_PSFLG_EXITING && p->u.terminate) { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT)) trace_sched(p, ERTS_PROC_LOCK_MAIN, am_in_exiting); } @@ -9975,12 +9973,9 @@ trace_schedule_out(Process *p, erts_aint32_t state) if (IS_TRACED_FL(p, F_TRACE_CALLS) && !(state & ERTS_PSFLG_FREE)) erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_OUT); - if ((state & (ERTS_PSFLG_FREE|ERTS_PSFLG_EXITING)) == ERTS_PSFLG_EXITING) { + if (state & ERTS_PSFLG_EXITING && p->u.terminate) { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT)) - trace_sched(p, ERTS_PROC_LOCK_MAIN, - ((state & ERTS_PSFLG_FREE) - ? am_out_exited - : am_out_exiting)); + trace_sched(p, ERTS_PROC_LOCK_MAIN, am_out_exiting); } else { if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED) || @@ -12323,11 +12318,8 @@ erts_do_exit_process(Process* p, Eterm reason) set_self_exiting(p, reason, NULL, NULL, NULL); - if (IS_TRACED(p)) { - if (IS_TRACED_FL(p, F_TRACE_CALLS)) - erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_EXITING); - - } + if (IS_TRACED_FL(p, F_TRACE_CALLS)) + erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_EXITING); erts_trace_check_exiting(p->common.id); @@ -12342,288 +12334,378 @@ erts_do_exit_process(Process* p, Eterm reason) erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); - if (IS_TRACED_FL(p,F_TRACE_PROCS)) + if (IS_TRACED_FL(p, F_TRACE_PROCS)) trace_proc(p, ERTS_PROC_LOCK_MAIN, p, am_exit, reason); - /* * p->u.initial of this process can *not* be used anymore; * will be overwritten by misc termination data. */ p->u.terminate = NULL; + BUMP_REDS(p, 100); + erts_continue_exit_process(p); } -void -erts_continue_exit_process(Process *p) -{ +enum continue_exit_phase { + ERTS_CONTINUE_EXIT_TIMERS, + ERTS_CONTINUE_EXIT_BLCKD_MSHED, + ERTS_CONTINUE_EXIT_BLCKD_NMSHED, + ERTS_CONTINUE_EXIT_USING_DB, + ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS, + ERTS_CONTINUE_EXIT_FREE, + ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS_AFTER, + ERTS_CONTINUE_EXIT_LINKS, + ERTS_CONTINUE_EXIT_MONITORS, + ERTS_CONTINUE_EXIT_LT_MONITORS, + ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG, +}; + +struct continue_exit_state { + enum continue_exit_phase phase; ErtsLink *links; ErtsMonitor *monitors; ErtsMonitor *lt_monitors; + Eterm reason; + ErtsProcExitContext pectxt; + DistEntry *dep; + void *yield_state; +}; + +void +erts_continue_exit_process(Process *p) +{ + struct continue_exit_state static_state, *trap_state = &static_state; ErtsProcLocks curr_locks = ERTS_PROC_LOCK_MAIN; - Eterm reason = p->fvalue; - DistEntry *dep = NULL; erts_aint32_t state; int delay_del_proc = 0; - ErtsProcExitContext pectxt; - + Sint reds = ERTS_BIF_REDS_LEFT(p); #ifdef DEBUG int yield_allowed = 1; #endif + if (p->u.terminate) { + trap_state = p->u.terminate; + } else { + trap_state->phase = ERTS_CONTINUE_EXIT_TIMERS; + trap_state->reason = p->fvalue; + trap_state->dep = NULL; + trap_state->yield_state = NULL; + } + ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(p)); ASSERT(ERTS_PROC_IS_EXITING(p)); ASSERT(erts_proc_read_refc(p) > 0); - if (p->bif_timers) { - if (erts_cancel_bif_timers(p, &p->bif_timers, &p->u.terminate)) { - ASSERT(erts_proc_read_refc(p) > 0); - goto yield; - } - ASSERT(erts_proc_read_refc(p) > 0); - p->bif_timers = NULL; - } - - if (p->flags & F_SCHDLR_ONLN_WAITQ) - abort_sched_onln_chng_waitq(p); - - if (p->flags & F_HAVE_BLCKD_MSCHED) { - ErtsSchedSuspendResult ssr; - ssr = erts_block_multi_scheduling(p, ERTS_PROC_LOCK_MAIN, 0, 0, 1); - switch (ssr) { - case ERTS_SCHDLR_SSPND_YIELD_RESTART: - goto yield; - case ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_DONE_NMSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_YIELD_DONE_MSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_YIELD_DONE_NMSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_DONE: - case ERTS_SCHDLR_SSPND_YIELD_DONE: - p->flags &= ~F_HAVE_BLCKD_MSCHED; - break; - case ERTS_SCHDLR_SSPND_EINVAL: - default: - erts_exit(ERTS_ABORT_EXIT, "%s:%d: Internal error: %d\n", - __FILE__, __LINE__, (int) ssr); - } - } - if (p->flags & F_HAVE_BLCKD_NMSCHED) { - ErtsSchedSuspendResult ssr; - ssr = erts_block_multi_scheduling(p, ERTS_PROC_LOCK_MAIN, 0, 1, 1); - switch (ssr) { - case ERTS_SCHDLR_SSPND_YIELD_RESTART: - goto yield; - case ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_DONE_NMSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_YIELD_DONE_MSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_YIELD_DONE_NMSCHED_BLOCKED: - case ERTS_SCHDLR_SSPND_DONE: - case ERTS_SCHDLR_SSPND_YIELD_DONE: - p->flags &= ~F_HAVE_BLCKD_MSCHED; - break; - case ERTS_SCHDLR_SSPND_EINVAL: - default: - erts_exit(ERTS_ABORT_EXIT, "%s:%d: Internal error: %d\n", - __FILE__, __LINE__, (int) ssr); - } - } - if (p->flags & F_USING_DB) { - if (erts_db_process_exiting(p, ERTS_PROC_LOCK_MAIN)) - goto yield; - p->flags &= ~F_USING_DB; - } + switch (trap_state->phase) { + case ERTS_CONTINUE_EXIT_TIMERS: + if (p->bif_timers) { + reds = erts_cancel_bif_timers(p, &p->bif_timers, &trap_state->yield_state, reds); + if (reds <= 0) goto yield; + p->bif_timers = NULL; + } - erts_set_gc_state(p, 1); - state = erts_atomic32_read_acqb(&p->state); - if ((state & ERTS_PSFLG_SYS_TASKS) || p->dirty_sys_tasks) { - if (cleanup_sys_tasks(p, state, CONTEXT_REDS) >= CONTEXT_REDS/2) - goto yield; - } + if (p->flags & F_SCHDLR_ONLN_WAITQ) { + abort_sched_onln_chng_waitq(p); + reds -= 100; + } -#ifdef DEBUG - erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); - ASSERT(ERTS_PROC_GET_DELAYED_GC_TASK_QS(p) == NULL); - ASSERT(p->dirty_sys_tasks == NULL); - erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS); -#endif + trap_state->phase = ERTS_CONTINUE_EXIT_BLCKD_MSHED; + if (reds <= 0) goto yield; + case ERTS_CONTINUE_EXIT_BLCKD_MSHED: + + if (p->flags & F_HAVE_BLCKD_MSCHED) { + ErtsSchedSuspendResult ssr; + ssr = erts_block_multi_scheduling(p, ERTS_PROC_LOCK_MAIN, 0, 0, 1); + switch (ssr) { + case ERTS_SCHDLR_SSPND_DONE: + case ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED: + case ERTS_SCHDLR_SSPND_DONE_NMSCHED_BLOCKED: + p->flags &= ~F_HAVE_BLCKD_MSCHED; + break; + default: + erts_exit(ERTS_ABORT_EXIT, "%s:%d: Internal error: %d\n", + __FILE__, __LINE__, (int) ssr); + } + reds -= 100; + } - if (p->flags & F_USING_DDLL) { - erts_ddll_proc_dead(p, ERTS_PROC_LOCK_MAIN); - p->flags &= ~F_USING_DDLL; - } + trap_state->phase = ERTS_CONTINUE_EXIT_BLCKD_NMSHED; + if (reds <= 0) goto yield; + case ERTS_CONTINUE_EXIT_BLCKD_NMSHED: + + if (p->flags & F_HAVE_BLCKD_NMSCHED) { + ErtsSchedSuspendResult ssr; + ssr = erts_block_multi_scheduling(p, ERTS_PROC_LOCK_MAIN, 0, 1, 1); + switch (ssr) { + case ERTS_SCHDLR_SSPND_DONE: + case ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED: + case ERTS_SCHDLR_SSPND_DONE_NMSCHED_BLOCKED: + p->flags &= ~F_HAVE_BLCKD_MSCHED; + break; + default: + erts_exit(ERTS_ABORT_EXIT, "%s:%d: Internal error: %d\n", + __FILE__, __LINE__, (int) ssr); + } + reds -= 100; + } - /* - * The registered name *should* be the last "erlang resource" to - * cleanup. - */ - if (p->common.u.alive.reg) { - (void) erts_unregister_name(p, ERTS_PROC_LOCK_MAIN, NULL, THE_NON_VALUE); - ASSERT(!p->common.u.alive.reg); - } + trap_state->yield_state = NULL; + trap_state->phase = ERTS_CONTINUE_EXIT_USING_DB; + if (reds <= 0) goto yield; + case ERTS_CONTINUE_EXIT_USING_DB: - if (IS_TRACED_FL(p, F_TRACE_SCHED_EXIT)) - trace_sched(p, curr_locks, am_out_exited); + if (p->flags & F_USING_DB) { + if (erts_db_process_exiting(p, ERTS_PROC_LOCK_MAIN, &trap_state->yield_state)) + goto yield; + p->flags &= ~F_USING_DB; + } - erts_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); - curr_locks = ERTS_PROC_LOCKS_ALL; + erts_set_gc_state(p, 1); + + trap_state->phase = ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS; + case ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS: + + state = erts_atomic32_read_acqb(&p->state); + if ((state & ERTS_PSFLG_SYS_TASKS) || p->dirty_sys_tasks) { + reds -= cleanup_sys_tasks(p, state, reds); + if (reds <= 0) goto yield; + } + + trap_state->phase = ERTS_CONTINUE_EXIT_FREE; + case ERTS_CONTINUE_EXIT_FREE: - /* - * From this point on we are no longer allowed to yield - * this process. - */ #ifdef DEBUG - yield_allowed = 0; + erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); + ASSERT(ERTS_PROC_GET_DELAYED_GC_TASK_QS(p) == NULL); + ASSERT(p->dirty_sys_tasks == NULL); + erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS); #endif - /* - * Note! The monitor and link fields will be overwritten - * by erts_ptab_delete_element() below. - */ - links = ERTS_P_LINKS(p); - monitors = ERTS_P_MONITORS(p); - lt_monitors = ERTS_P_LT_MONITORS(p); + if (p->flags & F_USING_DDLL) { + erts_ddll_proc_dead(p, ERTS_PROC_LOCK_MAIN); + p->flags &= ~F_USING_DDLL; + } - { - /* Do *not* use erts_get_runq_proc() */ - ErtsRunQueue *rq; - rq = erts_get_runq_current(erts_proc_sched_data(p)); + /* + * The registered name *should* be the last "erlang resource" to + * cleanup. + */ + if (p->common.u.alive.reg) { + (void) erts_unregister_name(p, ERTS_PROC_LOCK_MAIN, NULL, THE_NON_VALUE); + ASSERT(!p->common.u.alive.reg); + } - erts_runq_lock(rq); + erts_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR); + curr_locks = ERTS_PROC_LOCKS_ALL; - ASSERT(p->scheduler_data); - ASSERT(p->scheduler_data->current_process == p); - ASSERT(p->scheduler_data->free_process == NULL); + /* + * Note! The monitor and link fields will be overwritten + * by erts_ptab_delete_element() below. + */ + trap_state->links = ERTS_P_LINKS(p); + trap_state->monitors = ERTS_P_MONITORS(p); + trap_state->lt_monitors = ERTS_P_LT_MONITORS(p); - p->scheduler_data->current_process = NULL; - p->scheduler_data->free_process = p; + { + /* Do *not* use erts_get_runq_proc() */ + ErtsRunQueue *rq; + rq = erts_get_runq_current(erts_proc_sched_data(p)); - /* Time of death! */ - erts_ptab_delete_element(&erts_proc, &p->common); + erts_runq_lock(rq); - erts_runq_unlock(rq); - } + ASSERT(p->scheduler_data); + ASSERT(p->scheduler_data->current_process == p); + ASSERT(p->scheduler_data->free_process == NULL); - /* - * All "erlang resources" have to be deallocated before this point, - * e.g. registered name, so monitoring and linked processes can - * be sure that all interesting resources have been deallocated - * when the monitors and/or links hit. - */ + /* Time of death! */ + erts_ptab_delete_element(&erts_proc, &p->common); - { - /* Inactivate and notify free */ - erts_aint32_t n, e, a = erts_atomic32_read_nob(&p->state); - int refc_inced = 0; - while (1) { - n = e = a; - ASSERT(a & ERTS_PSFLG_EXITING); - n |= ERTS_PSFLG_FREE; - n &= ~(ERTS_PSFLG_ACTIVE - | ERTS_PSFLG_ACTIVE_SYS - | ERTS_PSFLG_DIRTY_ACTIVE_SYS); - if ((n & ERTS_PSFLG_IN_RUNQ) && !refc_inced) { - erts_proc_inc_refc(p); - refc_inced = 1; - } - a = erts_atomic32_cmpxchg_mb(&p->state, n, e); - if (a == e) - break; - } + erts_runq_unlock(rq); + } - if (a & (ERTS_PSFLG_DIRTY_RUNNING - | ERTS_PSFLG_DIRTY_RUNNING_SYS)) { - p->flags |= F_DELAYED_DEL_PROC; - delay_del_proc = 1; - /* - * The dirty scheduler decrease refc - * when done with the process... - */ - } + /* + * All "erlang resources" have to be deallocated before this point, + * e.g. registered name, so monitoring and linked processes can + * be sure that all interesting resources have been deallocated + * when the monitors and/or links hit. + */ - if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ)) - erts_proc_dec_refc(p); - } + { + /* Inactivate and notify free */ + erts_aint32_t n, e, a = erts_atomic32_read_nob(&p->state); + int refc_inced = 0; + while (1) { + n = e = a; + ASSERT(a & ERTS_PSFLG_EXITING); + n |= ERTS_PSFLG_FREE; + if ((n & ERTS_PSFLG_IN_RUNQ) && !refc_inced) { + erts_proc_inc_refc(p); + refc_inced = 1; + } + a = erts_atomic32_cmpxchg_mb(&p->state, n, e); + if (a == e) + break; + } + + if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ)) + erts_proc_dec_refc(p); + } - dep = ((p->flags & F_DISTRIBUTION) - ? ERTS_PROC_SET_DIST_ENTRY(p, NULL) - : NULL); + trap_state->dep = ((p->flags & F_DISTRIBUTION) + ? ERTS_PROC_SET_DIST_ENTRY(p, NULL) + : NULL); - /* - * It might show up signal prio elevation tasks until we - * have entered free state. Cleanup such tasks now. - */ - state = erts_atomic32_read_acqb(&p->state); - if (!(state & ERTS_PSFLG_SYS_TASKS)) - erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL); - else { erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); + curr_locks = ERTS_PROC_LOCK_MAIN; + trap_state->phase = ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS_AFTER; + case ERTS_CONTINUE_EXIT_CLEAN_SYS_TASKS_AFTER: + /* + * It might show up signal prio elevation tasks until we + * have entered free state. Cleanup such tasks now. + */ - do { - (void) cleanup_sys_tasks(p, state, CONTEXT_REDS); - state = erts_atomic32_read_acqb(&p->state); - } while (state & ERTS_PSFLG_SYS_TASKS); - - erts_proc_unlock(p, ERTS_PROC_LOCK_MAIN); - } + state = erts_atomic32_read_acqb(&p->state); + if ((state & ERTS_PSFLG_SYS_TASKS) || p->dirty_sys_tasks) { + reds -= cleanup_sys_tasks(p, state, reds); + if (reds <= 0) goto yield; + } + + /* Needs to be unlocked for erts_do_net_exits to work?!? */ + // erts_proc_unlock(p, ERTS_PROC_LOCK_MAIN); #ifdef DEBUG - erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); - ASSERT(p->sys_task_qs == NULL); - erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); + ASSERT(p->sys_task_qs == NULL); + erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS); #endif - if (dep) { - erts_do_net_exits(dep, (reason == am_kill) ? am_killed : reason); - erts_deref_dist_entry(dep); - } + if (trap_state->dep) { + erts_do_net_exits(trap_state->dep, + (trap_state->reason == am_kill) ? am_killed : trap_state->reason); + erts_deref_dist_entry(trap_state->dep); + } - pectxt.c_p = p; - pectxt.reason = reason; + trap_state->pectxt.c_p = p; + trap_state->pectxt.reason = trap_state->reason; + + erts_proc_lock(p, ERTS_PROC_LOCK_MSGQ); + + erts_proc_sig_fetch(p); + + erts_proc_unlock(p, ERTS_PROC_LOCK_MSGQ); + + reds -= 1000; + + trap_state->yield_state = NULL; + trap_state->phase = ERTS_CONTINUE_EXIT_LINKS; + if (reds <= 0) goto yield; + case ERTS_CONTINUE_EXIT_LINKS: + + reds = erts_link_tree_foreach_delete_yielding( + &trap_state->links, + erts_proc_exit_handle_link, + (void *) &trap_state->pectxt, + &trap_state->yield_state, + reds); + if (reds <= 0) + goto yield; + + ASSERT(!trap_state->links); + trap_state->yield_state = NULL; + trap_state->phase = ERTS_CONTINUE_EXIT_MONITORS; + case ERTS_CONTINUE_EXIT_MONITORS: + + reds = erts_monitor_tree_foreach_delete_yielding( + &trap_state->monitors, + erts_proc_exit_handle_monitor, + (void *) &trap_state->pectxt, + &trap_state->yield_state, + reds); + if (reds <= 0) + goto yield; + + ASSERT(!trap_state->monitors); + trap_state->yield_state = NULL; + trap_state->phase = ERTS_CONTINUE_EXIT_LT_MONITORS; + case ERTS_CONTINUE_EXIT_LT_MONITORS: + + reds = erts_monitor_list_foreach_delete_yielding( + &trap_state->lt_monitors, + erts_proc_exit_handle_monitor, + (void *) &trap_state->pectxt, + &trap_state->yield_state, + reds); + if (reds <= 0) + goto yield; + + ASSERT(!trap_state->lt_monitors); + trap_state->phase = ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG; + case ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG: { + Sint r = reds; + erts_aint_t state; + + if (!erts_proc_sig_handle_exit(p, &r)) + goto yield; + + reds -= r; - erts_proc_lock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_MSGQ); + /* + * From this point on we are no longer allowed to yield + * this process. + */ - erts_proc_sig_fetch(p); + /* Set state to not active as we don't want this process + to be scheduled in again after this. */ + state = erts_atomic32_read_band_relb(&p->state, + ~(ERTS_PSFLG_ACTIVE + | ERTS_PSFLG_ACTIVE_SYS + | ERTS_PSFLG_DIRTY_ACTIVE_SYS)); - erts_proc_unlock(p, ERTS_PROC_LOCK_MSGQ); + ASSERT(p->scheduler_data); + ASSERT(p->scheduler_data->current_process == p); + ASSERT(p->scheduler_data->free_process == NULL); - if (links) { - erts_link_tree_foreach_delete(&links, - erts_proc_exit_handle_link, - (void *) &pectxt); - ASSERT(!links); - } + p->scheduler_data->current_process = NULL; + p->scheduler_data->free_process = p; - if (monitors) { - erts_monitor_tree_foreach_delete(&monitors, - erts_proc_exit_handle_monitor, - (void *) &pectxt); - ASSERT(!monitors); - } + if (state & (ERTS_PSFLG_DIRTY_RUNNING + | ERTS_PSFLG_DIRTY_RUNNING_SYS)) { + p->flags |= F_DELAYED_DEL_PROC; + delay_del_proc = 1; + /* + * The dirty scheduler decrease refc + * when done with the process... + */ + } - if (lt_monitors) { - erts_monitor_list_foreach_delete(<_monitors, - erts_proc_exit_handle_monitor, - (void *) &pectxt); - ASSERT(!lt_monitors); - } + erts_schedule_thr_prgr_later_cleanup_op( + (void (*)(void*))erts_proc_dec_refc, + (void *) &p->common, + &p->common.u.release, + sizeof(Process)); - /* - * erts_proc_sig_handle_exit() implements yielding. - * However, this function cannot handle it yet... loop - * until done... - */ - while (!0) { - int reds = CONTEXT_REDS; - if (erts_proc_sig_handle_exit(p, &reds)) - break; +#ifdef DEBUG + yield_allowed = 0; +#endif + break; + } } + if (trap_state != &static_state) { + erts_free(ERTS_ALC_T_CONT_EXIT_TRAP, trap_state); + p->u.terminate = NULL; + } + ERTS_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); + if (IS_TRACED_FL(p, F_TRACE_SCHED_EXIT)) + trace_sched(p, curr_locks, am_out_exited); + erts_flush_trace_messages(p, ERTS_PROC_LOCK_MAIN); ERTS_TRACER_CLEAR(&ERTS_TRACER(p)); @@ -12639,9 +12721,26 @@ erts_continue_exit_process(Process *p) ERTS_LC_ASSERT(curr_locks == erts_proc_lc_my_proc_locks(p)); ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN & curr_locks); + ASSERT(erts_proc_read_refc(p) > 0); + + if (trap_state == &static_state) { + trap_state = erts_alloc(ERTS_ALC_T_CONT_EXIT_TRAP, sizeof(*trap_state)); + sys_memcpy(trap_state, &static_state, sizeof(*trap_state)); + p->u.terminate = trap_state; + } + + ASSERT(p->scheduler_data); + ASSERT(p->scheduler_data->current_process == p); + ASSERT(p->scheduler_data->free_process == NULL); + + if (trap_state->phase >= ERTS_CONTINUE_EXIT_FREE) { + p->scheduler_data->current_process = NULL; + p->scheduler_data->free_process = p; + } p->i = (BeamInstr *) beam_continue_exit; + /* Why is this lock take??? */ if (!(curr_locks & ERTS_PROC_LOCK_STATUS)) { erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); curr_locks |= ERTS_PROC_LOCK_STATUS; diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in index 54b7628137..131e967816 100644 --- a/erts/etc/unix/etp-commands.in +++ b/erts/etc/unix/etp-commands.in @@ -2096,7 +2096,7 @@ define etp-process-info-int end end printf " Current function: " - if ($etp_proc->current) + if ($etp_proc->current && !($etp_proc->state.counter & 0x800)) etp-1 $etp_proc->current->module printf ":" etp-1 $etp_proc->current->function @@ -2167,7 +2167,7 @@ define etp-processes-int set $invalid_proc = &erts_invalid_process set $proc_decentile = $proc_max_ix / 10 set $proc_printile = $proc_decentile - while $proc_ix < $proc_max_ix && $proc_cnt > 0 + while $proc_ix < $proc_max_ix && $proc_cnt >= 0 set $proc = (Process *) *((UWord *) ($proc_tab + $proc_ix)) if ($proc != ((Process *) 0) && $proc != $invalid_proc) printf "---\n" -- cgit v1.2.3 From 0184c2e0438ac42c44d14e92b13e2807e0a670b3 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Tue, 18 Sep 2018 15:27:01 +0200 Subject: erts: Remove a copy of distribution data payload Before this change the inet driver was in list mode and thus the data from it had to be copied when received by the dist entry. This change puts the tcp port in binary mode and makes the any refc binary created by it be used all the way to the process where it is decoded. Thus eliminating one copy of the entire message payload. --- erts/emulator/beam/dist.c | 32 ++++++++++++++++++++++++-------- erts/emulator/beam/external.c | 34 ++++++++++++++++++++++++++++------ erts/emulator/beam/external.h | 19 +++++++------------ erts/emulator/beam/global.h | 2 +- erts/emulator/beam/io.c | 3 +++ 5 files changed, 63 insertions(+), 27 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 21f994fd3e..3b6c0e5db9 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -85,10 +85,10 @@ dist_msg_dbg(ErtsDistExternal *edep, char *what, byte *buf, int sz) } else { ErlHeapFragment *mbuf = new_message_buffer(size); - erts_factory_static_init(&factory, ctl, ctl_len, &mbuf->off_heap); + erts_factory_static_init(&factory, mbuf->mem, ctl_len, &mbuf->off_heap); msg = erts_decode_dist_ext(&factory, edep); if (is_value(msg)) - erts_fprintf(stderr, " %s: %T\n", what, msg); + erts_fprintf(stderr, " %s: %.80T\n", what, msg); else { erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext(%s) failed:\n", @@ -1211,6 +1211,7 @@ int erts_net_message(Port *prt, Uint32 conn_id, byte *hbuf, ErlDrvSizeT hlen, + Binary *bin, byte *buf, ErlDrvSizeT len) { @@ -1259,7 +1260,7 @@ int erts_net_message(Port *prt, bw(buf, len); #endif - res = erts_prepare_dist_ext(&ede, buf, len, dep, conn_id, dep->cache); + res = erts_prepare_dist_ext(&ede, buf, len, bin, dep, conn_id, dep->cache); switch (res) { case ERTS_PREP_DIST_EXT_CLOSED: @@ -1303,7 +1304,7 @@ int erts_net_message(Port *prt, } #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "<< CTL: %T\n", arg); + erts_fprintf(stderr, "<< CTL: %.80T\n", arg); #endif if (is_not_tuple(arg) || @@ -1830,9 +1831,9 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) } #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, ">> CTL: %T\n", ctx->ctl); + erts_fprintf(stderr, ">> CTL: %.80T\n", ctx->ctl); if (is_value(ctx->msg)) - erts_fprintf(stderr, " MSG: %T\n", ctx->msg); + erts_fprintf(stderr, " MSG: %.80T\n", ctx->msg); #endif ctx->data_size = ctx->max_finalize_prepend; @@ -2613,6 +2614,7 @@ dist_ctrl_put_data_2(BIF_ALIST_2) ErlDrvSizeT size; Eterm input_handler; Uint32 conn_id; + Binary *bin = NULL; if (is_binary(BIF_ARG_2)) size = binary_size(BIF_ARG_2); @@ -2638,13 +2640,27 @@ dist_ctrl_put_data_2(BIF_ALIST_2) if (size != 0) { byte *data, *temp_alloc = NULL; - data = (byte *) erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc); + if (binary_bitoffset(BIF_ARG_2)) + data = (byte *) erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc); + else { + Eterm real_bin; + ProcBin *proc_bin; + Uint offset, bitoffs, bitsize; + + ERTS_GET_REAL_BIN(BIF_ARG_2, real_bin, offset, bitoffs, bitsize); + ASSERT(bitoffs == 0); + data = binary_bytes(real_bin) + offset; + proc_bin = (ProcBin *)binary_val(real_bin); + if (proc_bin->thing_word == HEADER_PROC_BIN) + bin = proc_bin->val; + } + if (!data) BIF_ERROR(BIF_P, BADARG); erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - (void) erts_net_message(NULL, dep, conn_id, NULL, 0, data, size); + (void) erts_net_message(NULL, dep, conn_id, NULL, 0, bin, data, size); /* * We ignore any decode failures. On fatal failures the * connection will be taken down by killing the diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 9a66e491f3..4b8040b356 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -640,14 +640,15 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) { size_t align_sz; size_t dist_ext_sz; - size_t ext_sz; + size_t ext_sz = 0; byte *ep; ErtsDistExternal *new_edep; dist_ext_sz = ERTS_DIST_EXT_SIZE(edep); ASSERT(edep->ext_endp && edep->extp); ASSERT(edep->ext_endp >= edep->extp); - ext_sz = edep->ext_endp - edep->extp; + if (edep->binp == NULL) + ext_sz = edep->ext_endp - edep->extp; align_sz = ERTS_EXTRA_DATA_ALIGN_SZ(dist_ext_sz + ext_sz); @@ -656,20 +657,36 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) ep = (byte *) new_edep; sys_memcpy((void *) ep, (void *) edep, dist_ext_sz); - ep += dist_ext_sz; if (new_edep->dep) erts_ref_dist_entry(new_edep->dep); - new_edep->extp = ep; - new_edep->ext_endp = ep + ext_sz; new_edep->heap_size = -1; - sys_memcpy((void *) ep, (void *) edep->extp, ext_sz); + + if (ext_sz) { + ep += dist_ext_sz; + new_edep->extp = ep; + new_edep->ext_endp = ep + ext_sz; + sys_memcpy((void *) ep, (void *) edep->extp, ext_sz); + } else { + erts_refc_inc(&new_edep->binp->intern.refc, 2); + } return new_edep; } +void +erts_free_dist_ext_copy(ErtsDistExternal *edep) +{ + if (edep->dep) + erts_deref_dist_entry(edep->dep); + if (edep->binp) + erts_bin_release(edep->binp); + erts_free(ERTS_ALC_T_EXT_TERM_DATA, edep); +} + int erts_prepare_dist_ext(ErtsDistExternal *edep, byte *ext, Uint size, + Binary *binp, DistEntry *dep, Uint32 conn_id, ErtsAtomCache *cache) @@ -685,6 +702,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, ASSERT(dep->flags & DFLAG_UTF8_ATOMS); + if ((dep->state != ERTS_DE_STATE_CONNECTED && dep->state != ERTS_DE_STATE_PENDING) || dep->connection_id != conn_id) { @@ -697,7 +715,11 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, ext++; size--; } + + edep->heap_size = -1; edep->ext_endp = ext + size; + edep->binp = binp; + ep = ext; if (size < 2) diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index edac177cc6..1223f90fcc 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -122,10 +122,13 @@ typedef struct { #define ERTS_DIST_CON_ID_MASK ((Uint32) 0x00ffffff) /* also in net_kernel.erl */ -typedef struct { +struct binary; + +typedef struct erl_dist_external { DistEntry *dep; byte *extp; byte *ext_endp; + struct binary *binp; Sint heap_size; Uint32 connection_id; Uint32 flags; @@ -171,7 +174,7 @@ Uint erts_encode_ext_size_ets(Eterm); void erts_encode_ext(Eterm, byte **); byte* erts_encode_ext_ets(Eterm, byte *, struct erl_off_heap_header** ext_off_heap); -ERTS_GLB_INLINE void erts_free_dist_ext_copy(ErtsDistExternal *); +void erts_free_dist_ext_copy(ErtsDistExternal *); ERTS_GLB_INLINE void *erts_dist_ext_trailer(ErtsDistExternal *); ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Uint); void *erts_dist_ext_trailer(ErtsDistExternal *); @@ -181,8 +184,8 @@ void erts_destroy_dist_ext_copy(ErtsDistExternal *); #define ERTS_PREP_DIST_EXT_SUCCESS (0) #define ERTS_PREP_DIST_EXT_CLOSED (1) -int erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint, - DistEntry *, Uint32 conn_id, ErtsAtomCache *); +int erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint, struct binary *, + DistEntry *, Uint32, ErtsAtomCache *); Sint erts_decode_dist_ext_size(ErtsDistExternal *); Eterm erts_decode_dist_ext(ErtsHeapFactory* factory, ErtsDistExternal *); @@ -202,14 +205,6 @@ void transcode_free_ctx(DistEntry* dep); #if ERTS_GLB_INLINE_INCL_FUNC_DEF -ERTS_GLB_INLINE void -erts_free_dist_ext_copy(ErtsDistExternal *edep) -{ - if (edep->dep) - erts_deref_dist_entry(edep->dep); - erts_free(ERTS_ALC_T_EXT_TERM_DATA, edep); -} - ERTS_GLB_INLINE void * erts_dist_ext_trailer(ErtsDistExternal *edep) { diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 29de162b42..52935d834c 100644 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -1093,7 +1093,7 @@ extern int distribution_info(fmtfn_t, void *); extern int is_node_name_atom(Eterm a); extern int erts_net_message(Port *, DistEntry *, Uint32 conn_id, - byte *, ErlDrvSizeT, byte *, ErlDrvSizeT); + byte *, ErlDrvSizeT, Binary *, byte *, ErlDrvSizeT); extern void init_dist(void); extern int stop_dist(void); diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 6a2be52e11..36824fe62c 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -6181,6 +6181,7 @@ int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, dep, conn_id, (byte*) hbuf, hlen, + ErlDrvBinary2Binary(bin), (byte*) (bin->orig_bytes+offs), len); } else @@ -6226,12 +6227,14 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen, dep, conn_id, NULL, 0, + NULL, (byte*) hbuf, hlen); else return erts_net_message(prt, dep, conn_id, (byte*) hbuf, hlen, + NULL, (byte*) buf, len); } else if (state & ERTS_PORT_SFLG_LINEBUF_IO) -- cgit v1.2.3 From 9a7df41a9e5361049a17c8aa971b52599fba2632 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Wed, 19 Sep 2018 16:37:55 +0200 Subject: erts: Move reason in dist messages to payload The dist messages EXIT, EXIT2 and MONITOR_DOWN have been updated with new versions that send the reason term as part of the payload of the message instead of as part of the control message. This allows the decode of the reason to be done by the receiving process instead of the dist entry which in turn makes it possible for multiple decodes to be done in parallel. This change is done in order to make it easier to fragment the potentially large payload of EXIT, EXIT2 and MONITOR_DOWN into multiple distribution messages. OTP-15611 --- erts/doc/src/erl_dist_protocol.xml | 114 ++++++++++-- erts/emulator/beam/dist.c | 284 ++++++++++++++++++++--------- erts/emulator/beam/dist.h | 52 ++++-- erts/emulator/beam/erl_message.c | 124 +++---------- erts/emulator/beam/erl_message.h | 2 - erts/emulator/beam/erl_proc_sig_queue.c | 312 +++++++++++++++++++++++++------- erts/emulator/beam/erl_proc_sig_queue.h | 69 ++++++- erts/emulator/beam/external.c | 22 ++- erts/emulator/beam/external.h | 2 +- erts/emulator/beam/msg_instrs.tab | 4 +- erts/emulator/hipe/hipe_native_bif.c | 2 +- 11 files changed, 692 insertions(+), 295 deletions(-) (limited to 'erts') diff --git a/erts/doc/src/erl_dist_protocol.xml b/erts/doc/src/erl_dist_protocol.xml index c90c8f9521..cf515795b4 100644 --- a/erts/doc/src/erl_dist_protocol.xml +++ b/erts/doc/src/erl_dist_protocol.xml @@ -532,11 +532,7 @@ io:format("old/unused name ~ts at port ~p, fd = ~p ~n", Distribution Handshake

This section describes the distribution handshake protocol introduced - in Erlang/OTP R6. This description was previously located in - $ERL_TOP/lib/kernel/internal_doc/distribution_handshake.txt and - has more or less been copied and "formatted" here. It has been almost - unchanged since 1999, but the handshake has not changed much since then - either.

+ in Erlang/OTP R6. The handshake has remaining almost the same since then.

General @@ -847,6 +843,18 @@ DiB == gen_digest(ChA, ICA)? of the SEND_TT control message.

+ -define(DFLAG_BIG_SEQTRACE_LABELS, 16#100000). + +

The node understands any term as the seqtrace label.

+ + -define(DFLAG_EXIT_PAYLOAD, 16#400000). + +

Use the PAYLOAD_EXIT, PAYLOAD_EXIT_TT, + PAYLOAD_EXIT2, PAYLOAD_EXIT2_TT + and PAYLOAD_MONITOR_P_EXIT + control messages + instead of the non-PAYLOAD variants.

+

There is also function dist_util:strict_order_flags/0 @@ -859,7 +867,7 @@ DiB == gen_digest(ChA, ICA)?

Protocol between Connected Nodes -

As from ERTS 5.7.2 the runtime system passes a distribution flag +

Since ERTS 5.7.2 (OTP R13B) the runtime system passes a distribution flag in the handshake stage that enables the use of a distribution header on all messages passed. Messages passed between nodes have in @@ -878,7 +886,7 @@ DiB == gen_digest(ChA, ICA)? ControlMessage Message - Format of Messages Passed between Nodes (as from ERTS 5.7.2) + Format of Messages Passed between Nodes (as from ERTS 5.7.2 (OTP R13B)) @@ -887,15 +895,23 @@ DiB == gen_digest(ChA, ICA)?

Equal to d + n + m.

+ DistributionHeader + +

+ Distribution header + describing the atom cache. + +

+ ControlMessage

A tuple passed using the external format of Erlang.

 Message -

The message sent to another node using the '!' (in external format). - Notice that Message is only passed in combination with a - ControlMessage encoding a send ('!').

+

The message sent to another node using the '!' + or the reason for a EXIT, EXIT2 or DOWN signal using + the external term format.

 @@ -903,7 +919,7 @@ DiB == gen_digest(ChA, ICA)? number is omitted from the terms that follow a distribution header .

-

Nodes with an ERTS version earlier than 5.7.2 does not pass the +

Nodes with an ERTS version earlier than 5.7.2 (OTP R13B) does not pass the distribution flag that enables the distribution header. Messages passed between nodes have in this case the following format:

@@ -920,7 +936,7 @@ DiB == gen_digest(ChA, ICA)? ControlMessage Message - Format of Messages Passed between Nodes (before ERTS 5.7.2) + Format of Messages Passed between Nodes (before ERTS 5.7.2 (OTP R13B)) @@ -1007,7 +1023,7 @@ DiB == gen_digest(ChA, ICA)?

{16, FromPid, Unused, ToName, TraceToken}

Followed by Message.

Unused is kept for backward compatibility.

- + EXIT2_TT

{18, FromPid, ToPid, TraceToken, Reason}

@@ -1061,7 +1077,7 @@ DiB == gen_digest(ChA, ICA)?

{22, FromPid, ToPid}

Followed by Message.

- This control messages replace the SEND control + This control message replaces the SEND control message and will be sent when the distribution flag DFLAG_SEND_SENDER has been negotiated in the connection setup handshake. @@ -1080,7 +1096,7 @@ DiB == gen_digest(ChA, ICA)?

{23, FromPid, ToPid, TraceToken}

Followed by Message.

- This control messages replace the SEND_TT control + This control message replaces the SEND_TT control message and will be sent when the distribution flag DFLAG_SEND_SENDER has been negotiated in the connection setup handshake. @@ -1097,4 +1113,72 @@ DiB == gen_digest(ChA, ICA)?

+
+ New Ctrlmessages for Erlang/OTP 22 +

+ Messages encoded before the connection has + been set up may still use the non-PAYLOAD variant. + However, once a PAYLOAD control message has been sent, + no more non-PAYLOAD control messages will be sent in + the same direction on the connection. +

+ + PAYLOAD_EXIT + +

{24, FromPid, ToPid}

+

Followed by Reason.

+

+ This control message replaces the EXIT control + message and will be sent when the distribution flag + DFLAG_EXIT_PAYLOAD + has been negotiated in the connection setup handshake. +

+ + PAYLOAD_EXIT_TT + +

{25, FromPid, ToPid}

+

Followed by Reason.

+

+ This control message replaces the EXIT_TT control + message and will be sent when the distribution flag + DFLAG_EXIT_PAYLOAD + has been negotiated in the connection setup handshake. +

+ + PAYLOAD_EXIT2 + +

{26, FromPid, ToPid}

+

Followed by Reason.

+

+ This control message replaces the EXIT2 control + message and will be sent when the distribution flag + DFLAG_EXIT_PAYLOAD + has been negotiated in the connection setup handshake. +

+ + PAYLOAD_EXIT2_TT + +

{27, FromPid, ToPid}

+

Followed by Reason.

+

+ This control message replaces the EXIT2_TT control + message and will be sent when the distribution flag + DFLAG_EXIT_PAYLOAD + has been negotiated in the connection setup handshake. +

+ + PAYLOAD_MONITOR_P_EXIT + +

{28, FromPid, ToPid, Ref}

+

Followed by Reason.

+

+ This control message replaces the MONITOR_P_EXIT control + message and will be sent when the distribution flag + DFLAG_EXIT_PAYLOAD + has been negotiated in the connection setup handshake. +

+ + +
+ diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 3b6c0e5db9..91a9481d84 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -50,7 +50,8 @@ #define DIST_CTL_DEFAULT_SIZE 64 /* Turn this on to get printouts of all distribution messages - * which go on the line + * which go on the line. Enabling this may make some testcases + * fail. Especially the broken dist testcases in distribution_SUITE. */ #if 0 #define ERTS_DIST_MSG_DBG @@ -71,8 +72,6 @@ static void dist_msg_dbg(ErtsDistExternal *edep, char *what, byte *buf, int sz) { ErtsHeapFactory factory; - DeclareTmpHeapNoproc(ctl_default,DIST_CTL_DEFAULT_SIZE); - Eterm* ctl = ctl_default; byte *extp = edep->extp; Eterm msg; Sint ctl_len; @@ -116,6 +115,7 @@ static Export *dist_ctrl_put_data_trap; /* forward declarations */ +static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, int force_busy); static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy); static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm); static void init_nodes_monitors(void); @@ -848,7 +848,7 @@ int erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, Eterm ref, Eterm reason) { - Eterm ctl; + Eterm ctl, msg; DeclareTmpHeapNoproc(ctl_heap,6); int res; @@ -861,10 +861,17 @@ erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, UseTmpHeapNoproc(6); - ctl = TUPLE5(&ctl_heap[0], make_small(DOP_MONITOR_P_EXIT), - watched, watcher, ref, reason); + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE4(&ctl_heap[0], make_small(DOP_PAYLOAD_MONITOR_P_EXIT), + watched, watcher, ref); + msg = reason; + } else { + ctl = TUPLE5(&ctl_heap[0], make_small(DOP_MONITOR_P_EXIT), + watched, watcher, ref, reason); + msg = THE_NON_VALUE; + } - res = dsig_send_ctl(dsdp, ctl, 1); + res = dsig_send_exit(dsdp, ctl, msg, 1); UnUseTmpHeapNoproc(6); return res; } @@ -1018,6 +1025,7 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) ctx->dss.ctl = ctl; ctx->dss.msg = message; ctx->dss.force_busy = 0; + ctx->dss.force_encode = 0; res = erts_dsig_send(&ctx->dsd, &ctx->dss); return res; } @@ -1077,6 +1085,7 @@ erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, ctx->dss.ctl = ctl; ctx->dss.msg = message; ctx->dss.force_busy = 0; + ctx->dss.force_encode = 0; res = erts_dsig_send(&ctx->dsd, &ctx->dss); return res; } @@ -1086,7 +1095,7 @@ int erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason, Eterm token) { - Eterm ctl; + Eterm ctl, msg = THE_NON_VALUE; DeclareTmpHeapNoproc(ctl_heap,6); int res; #ifdef USE_VM_PROBES @@ -1101,13 +1110,24 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #endif UseTmpHeapNoproc(6); + + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) + msg = reason; + if (have_seqtrace(token)) { seq_trace_update_send(dsdp->proc); seq_trace_output_exit(token, reason, SEQ_TRACE_SEND, remote, local); - ctl = TUPLE5(&ctl_heap[0], - make_small(DOP_EXIT_TT), local, remote, token, reason); + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE4(&ctl_heap[0], + make_small(DOP_PAYLOAD_EXIT_TT), local, remote, token); + } else + ctl = TUPLE5(&ctl_heap[0], + make_small(DOP_EXIT_TT), local, remote, token, reason); } else { - ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) + ctl = TUPLE3(&ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); + else + ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); } #ifdef USE_VM_PROBES *node_name = *sender_name = *remote_name = '\0'; @@ -1129,8 +1149,7 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #endif DTRACE7(process_exit_signal_remote, sender_name, node_name, remote_name, reason_str, tok_label, tok_lastcnt, tok_serial); - /* forced, i.e ignore busy */ - res = dsig_send_ctl(dsdp, ctl, 1); + res = dsig_send_exit(dsdp, ctl, msg, 1); UnUseTmpHeapNoproc(6); return res; } @@ -1140,13 +1159,18 @@ erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason) { DeclareTmpHeapNoproc(ctl_heap,5); int res; - Eterm ctl; + Eterm ctl, msg = dsdp->dep->flags & DFLAG_EXIT_PAYLOAD ? reason : THE_NON_VALUE; UseTmpHeapNoproc(5); - ctl = TUPLE4(&ctl_heap[0], - make_small(DOP_EXIT), local, remote, reason); - /* forced, i.e ignore busy */ - res = dsig_send_ctl(dsdp, ctl, 1); + + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE3(&ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); + msg = reason; + } else { + ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); + msg = THE_NON_VALUE; + } + res = dsig_send_exit(dsdp, ctl, msg, 1); UnUseTmpHeapNoproc(5); return res; } @@ -1156,13 +1180,20 @@ erts_dsig_send_exit2(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason { DeclareTmpHeapNoproc(ctl_heap,5); int res; - Eterm ctl; + Eterm ctl, msg; UseTmpHeapNoproc(5); - ctl = TUPLE4(&ctl_heap[0], - make_small(DOP_EXIT2), local, remote, reason); + if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE3(&ctl_heap[0], + make_small(DOP_PAYLOAD_EXIT2), local, remote); + msg = reason; + } else { + ctl = TUPLE4(&ctl_heap[0], + make_small(DOP_EXIT2), local, remote, reason); + msg = THE_NON_VALUE; + } - res = dsig_send_ctl(dsdp, ctl, 0); + res = dsig_send_exit(dsdp, ctl, msg, 0); UnUseTmpHeapNoproc(5); return res; } @@ -1227,10 +1258,8 @@ int erts_net_message(Port *prt, DeclareTmpHeapNoproc(ctl_default,DIST_CTL_DEFAULT_SIZE); Eterm* ctl = ctl_default; ErtsHeapFactory factory; - Eterm* hp; Sint type; Eterm token; - Eterm token_size; Uint tuple_arity; int res; #ifdef ERTS_DIST_MSG_DBG @@ -1290,7 +1319,6 @@ int erts_net_message(Port *prt, if (ctl_len > DIST_CTL_DEFAULT_SIZE) { ctl = erts_alloc(ERTS_ALC_T_DCTRL_BUF, ctl_len * sizeof(Eterm)); } - hp = ctl; erts_factory_tmp_init(&factory, ctl, ctl_len, ERTS_ALC_T_DCTRL_BUF); arg = erts_decode_dist_ext(&factory, &ede); @@ -1313,7 +1341,6 @@ int erts_net_message(Port *prt, goto invalid_message; } - token_size = 0; token = NIL; switch (type = unsigned_val(tuple[1])) { @@ -1508,7 +1535,6 @@ int erts_net_message(Port *prt, goto invalid_message; } - token_size = size_object(tuple[5]); /* Fall through ... */ case DOP_REG_SEND: /* {DOP_REG_SEND, From, Cookie, ToName} -- Message */ @@ -1533,35 +1559,25 @@ int erts_net_message(Port *prt, } rp = erts_whereis_process(NULL, 0, to, 0, 0); if (rp) { - Uint xsize = (type == DOP_REG_SEND - ? 0 - : ERTS_HEAP_FRAG_SIZE(token_size)); ErtsProcLocks locks = 0; ErtsDistExternal *ede_copy; - ede_copy = erts_make_dist_ext_copy(&ede, xsize); if (type == DOP_REG_SEND) { token = NIL; } else { - ErlHeapFragment *heap_frag; - ErlOffHeap *ohp; - ASSERT(xsize); - heap_frag = erts_dist_ext_trailer(ede_copy); - ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size); - hp = heap_frag->mem; - ohp = &heap_frag->off_heap; token = tuple[5]; - token = copy_struct(token, token_size, &hp, ohp); } - erts_queue_dist_message(rp, locks, ede_copy, token, from); + ede_copy = erts_make_dist_ext_copy(&ede, &token); + + erts_queue_dist_message(rp, locks, ede_copy, token, from); + if (locks) erts_proc_unlock(rp, locks); } break; case DOP_SEND_SENDER_TT: { - Uint xsize; case DOP_SEND_TT: if (tuple_arity != 4) { @@ -1569,15 +1585,12 @@ int erts_net_message(Port *prt, } token = tuple[4]; - token_size = size_object(token); - xsize = ERTS_HEAP_FRAG_SIZE(token_size); goto send_common; case DOP_SEND_SENDER: case DOP_SEND: token = NIL; - xsize = 0; if (tuple_arity != 3) goto invalid_message; @@ -1604,17 +1617,7 @@ int erts_net_message(Port *prt, ErtsProcLocks locks = 0; ErtsDistExternal *ede_copy; - ede_copy = erts_make_dist_ext_copy(&ede, xsize); - if (is_not_nil(token)) { - ErlHeapFragment *heap_frag; - ErlOffHeap *ohp; - ASSERT(xsize); - heap_frag = erts_dist_ext_trailer(ede_copy); - ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size); - hp = heap_frag->mem; - ohp = &heap_frag->off_heap; - token = copy_struct(token, token_size, &hp, ohp); - } + ede_copy = erts_make_dist_ext_copy(&ede, &token); erts_queue_dist_message(rp, locks, ede_copy, token, am_Empty); if (locks) @@ -1623,18 +1626,28 @@ int erts_net_message(Port *prt, break; } + case DOP_PAYLOAD_MONITOR_P_EXIT: case DOP_MONITOR_P_EXIT: { + ErtsDistExternal *ede_copy = NULL; + /* We are monitoring a process on the remote node which dies, we get {DOP_MONITOR_P_EXIT, Remote pid or name, Local pid, ref, reason} */ - - if (tuple_arity != 5) { - goto invalid_message; - } - watched = tuple[2]; /* remote proc or name which died */ - watcher = tuple[3]; + watched = tuple[2]; /* remote proc or name which died */ + watcher = tuple[3]; ref = tuple[4]; - reason = tuple[5]; + + if (type == DOP_PAYLOAD_MONITOR_P_EXIT) { + if (tuple_arity != 4) { + goto invalid_message; + } + reason = THE_NON_VALUE; + } else { + if (tuple_arity != 5) { + goto invalid_message; + } + reason = tuple[5]; + } if (is_not_ref(ref)) goto invalid_message; @@ -1650,70 +1663,134 @@ int erts_net_message(Port *prt, goto invalid_message; } + if (reason == THE_NON_VALUE) { + +#ifdef ERTS_DIST_MSG_DBG + dist_msg_dbg(&ede, "MSG", buf, orig_len); +#endif + + if (!erts_proc_lookup(watcher)) break; /* Process not alive */ + + ede_copy = erts_make_dist_ext_copy(&ede, &token); + } + erts_proc_sig_send_dist_monitor_down(dep, ref, watched, - watcher, reason); + watcher, ede_copy, reason); break; } + case DOP_PAYLOAD_EXIT: + case DOP_PAYLOAD_EXIT_TT: case DOP_EXIT_TT: case DOP_EXIT: { + ErtsDistExternal *ede_copy = NULL; + /* 'from', which 'to' is linked to, died */ + from = tuple[2]; + to = tuple[3]; + if (type == DOP_EXIT) { if (tuple_arity != 4) { goto invalid_message; } - - from = tuple[2]; - to = tuple[3]; - reason = tuple[4]; token = NIL; - } else { + reason = tuple[4]; + } else if (type == DOP_EXIT_TT){ if (tuple_arity != 5) { goto invalid_message; } - from = tuple[2]; - to = tuple[3]; token = tuple[4]; reason = tuple[5]; - } + } else if (type == DOP_PAYLOAD_EXIT) { + if (tuple_arity != 3) { + goto invalid_message; + } + token = NIL; + reason = THE_NON_VALUE; + } else { + if (tuple_arity != 4) { + goto invalid_message; + } + token = tuple[4]; + reason = THE_NON_VALUE; + } if (is_not_external_pid(from) || dep != external_pid_dist_entry(from) || is_not_internal_pid(to)) { goto invalid_message; } + if (reason == THE_NON_VALUE) { + +#ifdef ERTS_DIST_MSG_DBG + dist_msg_dbg(&ede, "MSG", buf, orig_len); +#endif + + if (!erts_proc_lookup(to)) break; /* Process not alive */ + + ede_copy = erts_make_dist_ext_copy(&ede, &token); + } + erts_proc_sig_send_dist_link_exit(dep, - from, to, + from, to, ede_copy, reason, token); break; } + case DOP_PAYLOAD_EXIT2_TT: + case DOP_PAYLOAD_EXIT2: case DOP_EXIT2_TT: - case DOP_EXIT2: + case DOP_EXIT2: { + ErtsDistExternal *ede_copy = NULL; + /* 'from' is send an exit signal to 'to' */ + from = tuple[2]; + to = tuple[3]; + if (type == DOP_EXIT2) { if (tuple_arity != 4) { goto invalid_message; } - from = tuple[2]; - to = tuple[3]; reason = tuple[4]; token = NIL; - } else { + } else if (type == DOP_EXIT2_TT) { if (tuple_arity != 5) { goto invalid_message; } - from = tuple[2]; - to = tuple[3]; token = tuple[4]; reason = tuple[5]; - } - if (is_not_pid(from) || is_not_internal_pid(to)) { + } else if (type == DOP_PAYLOAD_EXIT2) { + if (tuple_arity != 3) { + goto invalid_message; + } + reason = THE_NON_VALUE; + token = NIL; + } else { + if (tuple_arity != 4) { + goto invalid_message; + } + reason = THE_NON_VALUE; + token = tuple[4]; + } + if (is_not_pid(from) + || dep != external_pid_dist_entry(from) + || is_not_internal_pid(to)) { goto invalid_message; } - erts_proc_sig_send_exit(NULL, from, to, reason, token, 0); - break; + if (reason == THE_NON_VALUE) { + +#ifdef ERTS_DIST_MSG_DBG + dist_msg_dbg(&ede, "MSG", buf, orig_len); +#endif + + if (!erts_proc_lookup(to)) break; /* Process not alive */ + ede_copy = erts_make_dist_ext_copy(&ede, &token); + } + + erts_proc_sig_send_dist_exit(dep, from, to, ede_copy, reason, token); + break; + } case DOP_GROUP_LEADER: if (tuple_arity != 3) { goto invalid_message; @@ -1757,6 +1834,23 @@ data_error: return -1; } +static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, int force_busy) +{ + struct erts_dsig_send_context ctx; + int ret; + ctx.ctl = ctl; + ctx.msg = msg; + ctx.force_busy = force_busy; + ctx.force_encode = 1; + ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; +#ifdef DEBUG + ctx.reds = 1; /* provoke assert below (no reduction count with force_encode) */ +#endif + ret = erts_dsig_send(dsdp, &ctx); + ASSERT(ret != ERTS_DSIG_SEND_CONTINUE); + return ret; +} + static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) { struct erts_dsig_send_context ctx; @@ -1764,6 +1858,7 @@ static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) ctx.ctl = ctl; ctx.msg = THE_NON_VALUE; ctx.force_busy = force_busy; + ctx.force_encode = 1; ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; #ifdef DEBUG ctx.reds = 1; /* provoke assert below (no reduction count without msg) */ @@ -1850,10 +1945,14 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_SIZE; case ERTS_DSIG_SEND_PHASE_MSG_SIZE: - if (erts_encode_dist_ext_size_int(ctx->msg, ctx, &ctx->data_size)) { - retval = ERTS_DSIG_SEND_CONTINUE; - goto done; - } + if (!ctx->force_encode) { + if (erts_encode_dist_ext_size_int(ctx->msg, ctx, &ctx->data_size)) { + retval = ERTS_DSIG_SEND_CONTINUE; + goto done; + } + } else { + erts_encode_dist_ext_size(ctx->msg, ctx->flags, ctx->acmp, &ctx->data_size); + } ctx->phase = ERTS_DSIG_SEND_PHASE_ALLOC; case ERTS_DSIG_SEND_PHASE_ALLOC: @@ -1882,10 +1981,15 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_ENCODE; case ERTS_DSIG_SEND_PHASE_MSG_ENCODE: - if (erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, &ctx->u.ec, &ctx->reds)) { - retval = ERTS_DSIG_SEND_CONTINUE; - goto done; - } + if (!ctx->force_encode) { + if (erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, + ctx->acmp, &ctx->u.ec, &ctx->reds)) { + retval = ERTS_DSIG_SEND_CONTINUE; + goto done; + } + } else { + erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, NULL, NULL); + } ctx->phase = ERTS_DSIG_SEND_PHASE_FIN; case ERTS_DSIG_SEND_PHASE_FIN: { diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index a8ccd1eaec..81a09bc69c 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -47,6 +47,7 @@ #define DFLAG_SEND_SENDER 0x80000 #define DFLAG_BIG_SEQTRACE_LABELS 0x100000 #define DFLAG_NO_MAGIC 0x200000 /* internal for pending connection */ +#define DFLAG_EXIT_PAYLOAD 0x400000 /* Mandatory flags for distribution */ #define DFLAG_DIST_MANDATORY (DFLAG_EXTENDED_REFERENCES \ @@ -75,7 +76,8 @@ | DFLAG_MAP_TAG \ | DFLAG_BIG_CREATION \ | DFLAG_SEND_SENDER \ - | DFLAG_BIG_SEQTRACE_LABELS) + | DFLAG_BIG_SEQTRACE_LABELS \ + | DFLAG_EXIT_PAYLOAD) /* Flags addable by local distr implementations */ #define DFLAG_DIST_ADDABLE DFLAG_DIST_DEFAULT @@ -99,26 +101,35 @@ | DFLAG_BIG_CREATION) /* opcodes used in distribution messages */ -#define DOP_LINK 1 -#define DOP_SEND 2 -#define DOP_EXIT 3 -#define DOP_UNLINK 4 +enum { + DOP_LINK = 1, + DOP_SEND = 2, + DOP_EXIT = 3, + DOP_UNLINK = 4, /* Ancient DOP_NODE_LINK (5) was here, can be reused */ -#define DOP_REG_SEND 6 -#define DOP_GROUP_LEADER 7 -#define DOP_EXIT2 8 - -#define DOP_SEND_TT 12 -#define DOP_EXIT_TT 13 -#define DOP_REG_SEND_TT 16 -#define DOP_EXIT2_TT 18 - -#define DOP_MONITOR_P 19 -#define DOP_DEMONITOR_P 20 -#define DOP_MONITOR_P_EXIT 21 - -#define DOP_SEND_SENDER 22 -#define DOP_SEND_SENDER_TT 23 + DOP_REG_SEND = 6, + DOP_GROUP_LEADER = 7, + DOP_EXIT2 = 8, + + DOP_SEND_TT = 12, + DOP_EXIT_TT = 13, + DOP_REG_SEND_TT = 16, + DOP_EXIT2_TT = 18, + + DOP_MONITOR_P = 19, + DOP_DEMONITOR_P = 20, + DOP_MONITOR_P_EXIT = 21, + + DOP_SEND_SENDER = 22, + DOP_SEND_SENDER_TT = 23, + + /* These are used when DFLAG_EXIT_PAYLOAD is detected */ + DOP_PAYLOAD_EXIT = 24, + DOP_PAYLOAD_EXIT_TT = 25, + DOP_PAYLOAD_EXIT2 = 26, + DOP_PAYLOAD_EXIT2_TT = 27, + DOP_PAYLOAD_MONITOR_P_EXIT = 28 +}; /* distribution trap functions */ extern Export* dmonitor_node_trap; @@ -346,6 +357,7 @@ struct erts_dsig_send_context { Eterm ctl; Eterm msg; int force_busy; + int force_encode; Uint32 max_finalize_prepend; Uint data_size, dhdr_ext_size; ErtsAtomCacheMap *acmp; diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c index 942bec84cf..cd7bce8bf4 100644 --- a/erts/emulator/beam/erl_message.c +++ b/erts/emulator/beam/erl_message.c @@ -201,34 +201,40 @@ free_message_buffer(ErlHeapFragment* bp) }while (bp != NULL); } +static void +erts_cleanup_message(ErtsMessage *mp) +{ + ErlHeapFragment *bp; + if (ERTS_SIG_IS_EXTERNAL_MSG(mp) || ERTS_SIG_IS_NON_MSG(mp)) { + ErtsDistExternal *edep = erts_proc_sig_get_external(mp); + if (edep) { + erts_free_dist_ext_copy(edep); + if (mp->data.heap_frag == &mp->hfrag) { + ASSERT(ERTS_SIG_IS_EXTERNAL_MSG(mp)); + mp->data.heap_frag = ERTS_MSG_COMBINED_HFRAG; + } + } + } + + if (ERTS_SIG_IS_MSG(mp) && mp->data.attached != ERTS_MSG_COMBINED_HFRAG) { + bp = mp->data.heap_frag; + } else { + mp->data.attached = ERTS_MSG_COMBINED_HFRAG; + bp = mp->hfrag.next; + erts_cleanup_offheap(&mp->hfrag.off_heap); + } + + if (bp) + free_message_buffer(bp); +} + void erts_cleanup_messages(ErtsMessage *msgp) { ErtsMessage *mp = msgp; while (mp) { ErtsMessage *fmp; - ErlHeapFragment *bp; - if (ERTS_SIG_IS_EXTERNAL_MSG(mp)) { - if (is_not_immed(ERL_MESSAGE_TOKEN(mp))) { - bp = (ErlHeapFragment *) mp->data.dist_ext->ext_endp; - erts_cleanup_offheap(&bp->off_heap); - } - if (mp->data.dist_ext) - erts_free_dist_ext_copy(mp->data.dist_ext); - } - else { - if (ERTS_SIG_IS_INTERNAL_MSG(mp) - && mp->data.attached != ERTS_MSG_COMBINED_HFRAG) { - bp = mp->data.heap_frag; - } - else { - mp->data.attached = ERTS_MSG_COMBINED_HFRAG; - bp = mp->hfrag.next; - erts_cleanup_offheap(&mp->hfrag.off_heap); - } - if (bp) - free_message_buffer(bp); - } + erts_cleanup_message(mp); fmp = mp; mp = mp->next; erts_free_message(fmp); @@ -1099,80 +1105,6 @@ change_to_off_heap: return res; } -int -erts_decode_dist_message(Process *proc, ErtsProcLocks proc_locks, - ErtsMessage *msgp, int force_off_heap) -{ - ErtsHeapFactory factory; - Eterm msg; - ErlHeapFragment *bp; - Sint need; - int decode_in_heap_frag; - - decode_in_heap_frag = (force_off_heap - || !(proc_locks & ERTS_PROC_LOCK_MAIN) - || (proc->flags & F_OFF_HEAP_MSGQ)); - - if (msgp->data.dist_ext->heap_size >= 0) - need = msgp->data.dist_ext->heap_size; - else { - need = erts_decode_dist_ext_size(msgp->data.dist_ext); - if (need < 0) { - /* bad msg; remove it... */ - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - bp = erts_dist_ext_trailer(msgp->data.dist_ext); - erts_cleanup_offheap(&bp->off_heap); - } - erts_free_dist_ext_copy(msgp->data.dist_ext); - msgp->data.dist_ext = NULL; - return 0; - } - - msgp->data.dist_ext->heap_size = need; - } - - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - bp = erts_dist_ext_trailer(msgp->data.dist_ext); - need += bp->used_size; - } - - if (decode_in_heap_frag) - erts_factory_heap_frag_init(&factory, new_message_buffer(need)); - else - erts_factory_proc_prealloc_init(&factory, proc, need); - - ASSERT(msgp->data.dist_ext->heap_size >= 0); - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - ErlHeapFragment *heap_frag; - heap_frag = erts_dist_ext_trailer(msgp->data.dist_ext); - ERL_MESSAGE_TOKEN(msgp) = copy_struct(ERL_MESSAGE_TOKEN(msgp), - heap_frag->used_size, - &factory.hp, - factory.off_heap); - erts_cleanup_offheap(&heap_frag->off_heap); - } - - msg = erts_decode_dist_ext(&factory, msgp->data.dist_ext); - ERL_MESSAGE_TERM(msgp) = msg; - erts_free_dist_ext_copy(msgp->data.dist_ext); - msgp->data.attached = NULL; - - if (is_non_value(msg)) { - erts_factory_undo(&factory); - return 0; - } - - erts_factory_trim_and_close(&factory, msgp->m, - ERL_MESSAGE_REF_ARRAY_SZ); - - ASSERT(!msgp->data.heap_frag); - - if (decode_in_heap_frag) - msgp->data.heap_frag = factory.heap_frags; - - return 1; -} - void erts_factory_proc_init(ErtsHeapFactory* factory, Process* p) { diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h index b2550814fd..58294648b4 100644 --- a/erts/emulator/beam/erl_message.h +++ b/erts/emulator/beam/erl_message.h @@ -455,8 +455,6 @@ Sint erts_move_messages_off_heap(Process *c_p); Sint erts_complete_off_heap_message_queue_change(Process *c_p); Eterm erts_change_message_queue_management(Process *c_p, Eterm new_state); -int erts_decode_dist_message(Process *, ErtsProcLocks, ErtsMessage *, int); - void erts_cleanup_messages(ErtsMessage *mp); void *erts_alloc_message_ref(void); diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c index 668ee4ce96..1bd219b6d7 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.c +++ b/erts/emulator/beam/erl_proc_sig_queue.c @@ -80,6 +80,8 @@ #define ERTS_SIG_Q_TYPE_ADJUST_TRACE_INFO \ ERTS_SIG_Q_TYPE_MAX +#define ERTS_SIG_IS_EXTERNAL(sig) is_non_value(get_exit_signal_data(sig)->reason) + Process *ERTS_WRITE_UNLIKELY(erts_dirty_process_signal_handler); Process *ERTS_WRITE_UNLIKELY(erts_dirty_process_signal_handler_high); Process *ERTS_WRITE_UNLIKELY(erts_dirty_process_signal_handler_max); @@ -112,6 +114,8 @@ typedef struct { Eterm message; Eterm from; Eterm reason; + struct erl_dist_external *dist_ext; + ErlHeapFragment *heap_frag; union { Eterm ref; int normal_kills; @@ -936,13 +940,32 @@ erts_proc_sig_privqs_len(Process *c_p) return proc_sig_privqs_len(c_p, 0); } +ErtsDistExternal * +erts_proc_sig_get_external(ErtsMessage *msgp) +{ + if (ERTS_SIG_IS_EXTERNAL_MSG(msgp)) { + return erts_get_dist_ext(msgp->data.heap_frag); + } else if (ERTS_SIG_IS_NON_MSG(msgp) && ERTS_SIG_IS_EXTERNAL(msgp)) { + ErtsDistExternal *edep; + ErtsExitSignalData *xsigd = get_exit_signal_data(msgp); + ASSERT(ERTS_PROC_SIG_TYPE(((ErtsSignal *) msgp)->common.tag) == ERTS_SIG_Q_TYPE_GEN_EXIT); + ASSERT(is_non_value(xsigd->reason)); + if (msgp->hfrag.next == NULL) + edep = (ErtsDistExternal*)((void*)xsigd) + sizeof(ErtsExitSignalData); + else + edep = erts_get_dist_ext(msgp->hfrag.next); + return edep; + } + return NULL; +} + static void do_seq_trace_output(Eterm to, Eterm token, Eterm msg); static void send_gen_exit_signal(Process *c_p, Eterm from_tag, Eterm from, Eterm to, - Sint16 op, Eterm reason, Eterm ref, - Eterm token, int normal_kills) + Sint16 op, Eterm reason, ErtsDistExternal *dist_ext, + Eterm ref, Eterm token, int normal_kills) { ErtsExitSignalData *xsigd; Eterm *hp, *start_hp, s_reason, s_ref, s_message, s_token, s_from; @@ -956,6 +979,9 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, Uint utag_sz; #endif + ASSERT((is_value(reason) && dist_ext == NULL) || + (is_non_value(reason) && dist_ext != NULL)); + ASSERT(is_immed(from_tag)); hsz = sizeof(ErtsExitSignalData)/sizeof(Uint); @@ -977,33 +1003,35 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, hsz += utag_sz; #endif - token_sz = is_immed(token) ? 0 : size_object(token); + token_sz = size_object(token); hsz += token_sz; - from_sz = is_immed(from) ? 0 : size_object(from); + from_sz = size_object(from); hsz += from_sz; - reason_sz = is_immed(reason) ? 0 : size_object(reason); - hsz += reason_sz; + ref_sz = size_object(ref); + hsz += ref_sz; - switch (op) { - case ERTS_SIG_Q_OP_EXIT: - case ERTS_SIG_Q_OP_EXIT_LINKED: { - /* {'EXIT', From, Reason} */ - hsz += 4; /* 3-tuple */ - ref_sz = 0; - break; - } - case ERTS_SIG_Q_OP_MONITOR_DOWN: { - /* {'DOWN', Ref, process, From, Reason} */ - hsz += 6; /* 5-tuple */ - ref_sz = NC_HEAP_SIZE(ref); - hsz += ref_sz; - break; - } - default: - ERTS_INTERNAL_ERROR("Invalid exit signal op"); - break; + if (is_value(reason)) { + reason_sz = size_object(reason); + hsz += reason_sz; + + switch (op) { + case ERTS_SIG_Q_OP_EXIT: + case ERTS_SIG_Q_OP_EXIT_LINKED: { + /* {'EXIT', From, Reason} */ + hsz += 4; /* 3-tuple */ + break; + } + case ERTS_SIG_Q_OP_MONITOR_DOWN: { + /* {'DOWN', Ref, process, From, Reason} */ + hsz += 6; /* 5-tuple */ + break; + } + default: + ERTS_INTERNAL_ERROR("Invalid exit signal op"); + break; + } } /* @@ -1015,35 +1043,33 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, ohp = &hfrag->off_heap; start_hp = hp; - s_token = (is_immed(token) - ? token - : copy_struct(token, token_sz, &hp, ohp)); - - s_reason = (is_immed(reason) - ? reason - : copy_struct(reason, reason_sz, &hp, ohp)); + s_token = copy_struct(token, token_sz, &hp, ohp); + s_from = copy_struct(from, from_sz, &hp, ohp); + s_ref = copy_struct(ref, ref_sz, &hp, ohp); - s_from = (is_immed(from) - ? from - : copy_struct(from, from_sz, &hp, ohp)); + if (is_value(reason)) { + s_reason = copy_struct(reason, reason_sz, &hp, ohp); - if (!ref_sz) - s_ref = NIL; - else - s_ref = STORE_NC(&hp, ohp, ref); - - switch (op) { - case ERTS_SIG_Q_OP_EXIT: - case ERTS_SIG_Q_OP_EXIT_LINKED: - /* {'EXIT', From, Reason} */ - s_message = TUPLE3(hp, am_EXIT, s_from, s_reason); - hp += 4; - break; - case ERTS_SIG_Q_OP_MONITOR_DOWN: - /* {'DOWN', Ref, process, From, Reason} */ - s_message = TUPLE5(hp, am_DOWN, s_ref, am_process, s_from, s_reason); - hp += 6; - break; + switch (op) { + case ERTS_SIG_Q_OP_EXIT: + case ERTS_SIG_Q_OP_EXIT_LINKED: + /* {'EXIT', From, Reason} */ + s_message = TUPLE3(hp, am_EXIT, s_from, s_reason); + hp += 4; + break; + case ERTS_SIG_Q_OP_MONITOR_DOWN: + /* {'DOWN', Ref, process, From, Reason} */ + s_message = TUPLE5(hp, am_DOWN, s_ref, am_process, s_from, s_reason); + hp += 6; + break; + default: + /* This cannot happen, used to silence gcc warning */ + s_message = THE_NON_VALUE; + break; + } + } else { + s_message = THE_NON_VALUE; + s_reason = THE_NON_VALUE; } #ifdef USE_VM_PROBES @@ -1066,6 +1092,9 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, xsigd->message = s_message; xsigd->from = s_from; xsigd->reason = s_reason; + xsigd->dist_ext = dist_ext; + xsigd->heap_frag = NULL; + if (is_nil(s_ref)) xsigd->u.normal_kills = normal_kills; else { @@ -1205,7 +1234,18 @@ erts_proc_sig_send_exit(Process *c_p, Eterm from, Eterm to, from_tag = dep->sysname; } send_gen_exit_signal(c_p, from_tag, from, to, ERTS_SIG_Q_OP_EXIT, - reason, NIL, token, normal_kills); + reason, NULL, NIL, token, normal_kills); +} + +void +erts_proc_sig_send_dist_exit(DistEntry *dep, + Eterm from, Eterm to, + ErtsDistExternal *dist_ext, + Eterm reason, Eterm token) +{ + send_gen_exit_signal(NULL, dep->sysname, from, to, ERTS_SIG_Q_OP_EXIT, + reason, dist_ext, NIL, token, 0); + } void @@ -1219,7 +1259,7 @@ erts_proc_sig_send_link_exit(Process *c_p, Eterm from, ErtsLink *lnk, if (is_not_immed(reason) || is_not_nil(token)) { ASSERT(is_internal_pid(from) || is_internal_port(from)); send_gen_exit_signal(c_p, from, from, to, ERTS_SIG_Q_OP_EXIT_LINKED, - reason, NIL, token, 0); + reason, NULL, NIL, token, 0); } else { /* Pass signal using old link structure... */ @@ -1274,10 +1314,12 @@ erts_proc_sig_send_unlink(Process *c_p, ErtsLink *lnk) void erts_proc_sig_send_dist_link_exit(DistEntry *dep, Eterm from, Eterm to, + ErtsDistExternal *dist_ext, Eterm reason, Eterm token) { send_gen_exit_signal(NULL, dep->sysname, from, to, ERTS_SIG_Q_OP_EXIT_LINKED, - reason, NIL, token, 0); + reason, dist_ext, NIL, token, 0); + } void @@ -1299,16 +1341,17 @@ erts_proc_sig_send_dist_unlink(DistEntry *dep, Eterm from, Eterm to) void erts_proc_sig_send_dist_monitor_down(DistEntry *dep, Eterm ref, Eterm from, Eterm to, + ErtsDistExternal *dist_ext, Eterm reason) { Eterm monitored, heap[3]; - if (is_atom(from)) + if (is_atom(from)) monitored = TUPLE2(&heap[0], from, dep->sysname); else monitored = from; send_gen_exit_signal(NULL, dep->sysname, monitored, to, ERTS_SIG_Q_OP_MONITOR_DOWN, - reason, ref, NIL, 0); + reason, dist_ext, ref, NIL, 0); } void @@ -1376,10 +1419,10 @@ erts_proc_sig_send_monitor_down(ErtsMonitor *mon, Eterm reason) || is_internal_pid(from_tag) || is_atom(from_tag)); monitored = TUPLE2(&heap[0], name, node); - } + } send_gen_exit_signal(NULL, from_tag, monitored, to, ERTS_SIG_Q_OP_MONITOR_DOWN, - reason, mdp->ref, NIL, 0); + reason, NULL, mdp->ref, NIL, 0); } erts_monitor_release(mon); } @@ -2037,7 +2080,6 @@ handle_exit_signal(Process *c_p, ErtsSigRecvTracing *tracing, if (type == ERTS_SIG_Q_TYPE_GEN_EXIT) { xsigd = get_exit_signal_data(sig); from = xsigd->from; - reason = xsigd->reason; if (op != ERTS_SIG_Q_OP_EXIT_LINKED) ignore = 0; else { @@ -2062,13 +2104,28 @@ handle_exit_signal(Process *c_p, ErtsSigRecvTracing *tracing, } } + /* This GEN_EXIT was received from another node, decode the exit reason */ + if (ERTS_SIG_IS_EXTERNAL(sig)) + erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 1); + + reason = xsigd->reason; + + if (is_non_value(reason)) { + /* Bad distribution message; remove it from queue... */ + ignore = !0; + destroy = !0; + } + if (!ignore) { if ((op != ERTS_SIG_Q_OP_EXIT || reason != am_kill) && (c_p->flags & F_TRAP_EXIT)) { convert_prepared_sig_to_msg(c_p, sig, xsigd->message, next_nm_sig); + ASSERT(sig->hfrag.next == NULL); + sig->hfrag.next = xsigd->heap_frag; conv_msg = sig; + } else if (reason == am_normal && !xsigd->u.normal_kills) { /* Ignore it... */ @@ -2929,6 +2986,130 @@ handle_sync_suspend(Process *c_p, ErtsMessage *mp) } } +int +erts_proc_sig_decode_dist(Process *proc, ErtsProcLocks proc_locks, + ErtsMessage *msgp, int force_off_heap) +{ + ErtsHeapFactory factory; + Eterm msg; + ErlHeapFragment *bp; + Sint need; + int decode_in_heap_frag; + ErtsDistExternal *dist_ext; + ErtsExitSignalData *xsigd = NULL; + + decode_in_heap_frag = (force_off_heap + || !(proc_locks & ERTS_PROC_LOCK_MAIN) + || (proc->flags & F_OFF_HEAP_MSGQ)); + + if (ERTS_SIG_IS_EXTERNAL_MSG(msgp)) + dist_ext = msgp->data.dist_ext; + else { + xsigd = get_exit_signal_data(msgp); + ASSERT(ERTS_PROC_SIG_TYPE(((ErtsSignal *) msgp)->common.tag) == ERTS_SIG_Q_TYPE_GEN_EXIT); + ASSERT(is_non_value(xsigd->reason)); + dist_ext = xsigd->dist_ext; + } + + if (dist_ext->heap_size >= 0) + need = dist_ext->heap_size; + else { + need = erts_decode_dist_ext_size(dist_ext); + if (need < 0) { + /* bad msg; remove it... */ + if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { + bp = erts_dist_ext_trailer(dist_ext); + erts_cleanup_offheap(&bp->off_heap); + } + erts_free_dist_ext_copy(dist_ext); + dist_ext = NULL; + return 0; + } + + dist_ext->heap_size = need; + } + + if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { + bp = erts_dist_ext_trailer(dist_ext); + need += bp->used_size; + } + + if (xsigd) { + switch (ERTS_PROC_SIG_OP(ERL_MESSAGE_TERM(msgp))) { + case ERTS_SIG_Q_OP_EXIT: + case ERTS_SIG_Q_OP_EXIT_LINKED: + /* {'EXIT', From, Reason} */ + need += 4; + break; + case ERTS_SIG_Q_OP_MONITOR_DOWN: + /* {'DOWN', Ref, process, From, Reason} */ + need += 6; /* 5-tuple */ + break; + default: + ERTS_INTERNAL_ERROR("Invalid exit signal op"); + break; + } + } + + if (decode_in_heap_frag) + erts_factory_heap_frag_init(&factory, new_message_buffer(need)); + else + erts_factory_proc_prealloc_init(&factory, proc, need); + + ASSERT(dist_ext->heap_size >= 0); + if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { + ErlHeapFragment *heap_frag; + heap_frag = erts_dist_ext_trailer(dist_ext); + ERL_MESSAGE_TOKEN(msgp) = copy_struct(ERL_MESSAGE_TOKEN(msgp), + heap_frag->used_size, + &factory.hp, + factory.off_heap); + erts_cleanup_offheap(&heap_frag->off_heap); + } + + msg = erts_decode_dist_ext(&factory, dist_ext); + if (!xsigd) { + ERL_MESSAGE_TERM(msgp) = msg; + msgp->data.attached = NULL; + } else { + switch (ERTS_PROC_SIG_OP(ERL_MESSAGE_TERM(msgp))) { + case ERTS_SIG_Q_OP_EXIT: + case ERTS_SIG_Q_OP_EXIT_LINKED: + /* {'EXIT', From, Reason} */ + erts_reserve_heap(&factory, 4); + xsigd->message = TUPLE3(factory.hp, am_EXIT, xsigd->from, msg); + factory.hp += 4; + break; + case ERTS_SIG_Q_OP_MONITOR_DOWN: + /* {'DOWN', Ref, process, From, Reason} */ + erts_reserve_heap(&factory, 6); + xsigd->message = TUPLE5(factory.hp, am_DOWN, xsigd->u.ref, am_process, xsigd->from, msg); + factory.hp += 6; + break; + } + xsigd->reason = msg; + } + erts_free_dist_ext_copy(dist_ext); + + if (is_non_value(msg)) { + erts_factory_undo(&factory); + return 0; + } + + erts_factory_close(&factory); + + ASSERT(!msgp->data.heap_frag || xsigd); + + if (decode_in_heap_frag) { + if (!xsigd) + msgp->data.heap_frag = factory.heap_frags; + else + xsigd->heap_frag = factory.heap_frags; + } + + return 1; +} + void erts_proc_sig_handle_pending_suspend(Process *c_p) { @@ -3045,7 +3226,7 @@ erts_proc_sig_handle_incoming(Process *c_p, erts_aint32_t *statep, ASSERT(ERTS_SIG_IS_NON_MSG(sig)); tag = ((ErtsSignal *) sig)->common.tag; - + switch (ERTS_PROC_SIG_OP(tag)) { case ERTS_SIG_Q_OP_EXIT: @@ -3091,6 +3272,11 @@ erts_proc_sig_handle_incoming(Process *c_p, erts_aint32_t *statep, break; case ERTS_SIG_Q_TYPE_GEN_EXIT: xsigd = get_exit_signal_data(sig); + + /* This GEN_EXIT was received from another node, decode the exit reason */ + if (ERTS_SIG_IS_EXTERNAL(sig)) + erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 1); + omon = erts_monitor_tree_lookup(ERTS_P_MONITORS(c_p), xsigd->u.ref); if (omon) { @@ -4190,8 +4376,8 @@ handle_msg_tracing(Process *c_p, ErtsSigRecvTracing *tracing, } if (ERTS_SIG_IS_EXTERNAL_MSG(sig)) { cnt++; - if (!erts_decode_dist_message(c_p, ERTS_PROC_LOCK_MAIN, - sig, 0)) { + if (!erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, + sig, 0)) { /* Bad dist message; remove it... */ remove_mq_m_sig(c_p, sig, next_sig, next_nm_sig); sig = *next_sig; @@ -4266,7 +4452,7 @@ erts_proc_sig_prep_msgq_for_inspection(Process *c_p, if (ERTS_SIG_IS_EXTERNAL_MSG(mp)) { /* decode it... */ if (mp->data.attached) - erts_decode_dist_message(rp, rp_locks, mp, !0); + erts_proc_sig_decode_dist(rp, rp_locks, mp, !0); msg = ERL_MESSAGE_TERM(mp); diff --git a/erts/emulator/beam/erl_proc_sig_queue.h b/erts/emulator/beam/erl_proc_sig_queue.h index 5a02708bb7..39cee6f230 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.h +++ b/erts/emulator/beam/erl_proc_sig_queue.h @@ -89,6 +89,7 @@ #endif struct erl_mesg; +struct erl_dist_external; typedef struct { struct erl_mesg *next; @@ -210,6 +211,34 @@ void erts_proc_sig_send_exit(Process *c_p, Eterm from, Eterm to, Eterm reason, Eterm token, int normal_kills); +/** + * + * @brief Send an exit signal to a process. + * + * This function is used instead of erts_proc_sig_send_link_exit() + * when the signal arrives via the distribution and + * therefore no link structure is available. + * + * @param[in] dep Distribution entry of channel + * that the signal arrived on. + * + * @param[in] from Identifier of sender. + * + * @param[in] to Identifier of receiver. + * + * @param[in] dist_ext The exit reason in external term format + * + * @param[in] reason Exit reason. + * + * @param[in] token Seq trace token. + * + */ +void +erts_proc_sig_send_dist_exit(DistEntry *dep, + Eterm from, Eterm to, + ErtsDistExternal *dist_ext, + Eterm reason, Eterm token); + /** * * @brief Send an exit signal due to broken link to a process. @@ -282,7 +311,7 @@ erts_proc_sig_send_unlink(Process *c_p, ErtsLink *lnk); * * This function is used instead of erts_proc_sig_send_link_exit() * when the signal arrives via the distribution and - * no link structure is available. + * therefore no link structure is available. * * @param[in] dep Distribution entry of channel * that the signal arrived on. @@ -291,6 +320,8 @@ erts_proc_sig_send_unlink(Process *c_p, ErtsLink *lnk); * * @param[in] to Identifier of receiver. * + * @param[in] dist_ext The exit reason in external term format + * * @param[in] reason Exit reason. * * @param[in] token Seq trace token. @@ -299,6 +330,7 @@ erts_proc_sig_send_unlink(Process *c_p, ErtsLink *lnk); void erts_proc_sig_send_dist_link_exit(struct dist_entry_ *dep, Eterm from, Eterm to, + ErtsDistExternal *dist_ext, Eterm reason, Eterm token); /** @@ -307,7 +339,7 @@ erts_proc_sig_send_dist_link_exit(struct dist_entry_ *dep, * * This function is used instead of erts_proc_sig_send_unlink() * when the signal arrives via the distribution and - * no link structure is available. + * therefore no link structure is available. * * @param[in] dep Distribution entry of channel * that the signal arrived on. @@ -380,7 +412,7 @@ erts_proc_sig_send_monitor(ErtsMonitor *mon, Eterm to); * * This function is used instead of erts_proc_sig_send_monitor_down() * when the signal arrives via the distribution and - * no link structure is available. + * therefore no monitor structure is available. * * @param[in] dep Pointer to distribution entry * of channel that the signal @@ -392,12 +424,15 @@ erts_proc_sig_send_monitor(ErtsMonitor *mon, Eterm to); * * @param[in] to Identifier of receiver. * + * @param[in] dist_ext The exit reason in external term format + * * @param[in] reason Exit reason. * */ void erts_proc_sig_send_dist_monitor_down(DistEntry *dep, Eterm ref, Eterm from, Eterm to, + ErtsDistExternal *dist_ext, Eterm reason); /** @@ -961,6 +996,34 @@ erts_proc_sig_clear_seq_trace_tokens(Process *c_p); void erts_proc_sig_handle_pending_suspend(Process *c_p); +/** + * + * @brief Decode the reason term in an external signal + * + * Any distributed signal with a payload only has the control + * message decoded by the dist entry. The final decode of the + * payload is done by the process when it inspects the signal + * by calling this function. + * + * This functions handles both messages and link/monitor exits. + * + * Return true if the decode was successful, false otherwise. + * + * @param[in] c_p Pointer to executing process + * + * @param[in] proc_lock Locks held by process. Should always be MAIN. + * + * @param[in] msgp The signal to decode + * + * @param[in] force_off_heap If the term should be forced to be off-heap + */ +int +erts_proc_sig_decode_dist(Process *proc, ErtsProcLocks proc_locks, + ErtsMessage *msgp, int force_off_heap); + +ErtsDistExternal * +erts_proc_sig_get_external(ErtsMessage *msgp); + /** * @brief Initialize this functionality */ diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 4b8040b356..640ca338d9 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -636,11 +636,13 @@ byte* erts_encode_ext_ets(Eterm term, byte *ep, struct erl_off_heap_header** off } ErtsDistExternal * -erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) +erts_make_dist_ext_copy(ErtsDistExternal *edep, Eterm *token) { size_t align_sz; size_t dist_ext_sz; size_t ext_sz = 0; + size_t token_sz = 0; + Eterm token_size; byte *ep; ErtsDistExternal *new_edep; @@ -652,8 +654,12 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) align_sz = ERTS_EXTRA_DATA_ALIGN_SZ(dist_ext_sz + ext_sz); + token_size = size_object(*token); + if (token_size) + token_sz = ERTS_HEAP_FRAG_SIZE(token_size); + new_edep = erts_alloc(ERTS_ALC_T_EXT_TERM_DATA, - dist_ext_sz + ext_sz + align_sz + xsize); + dist_ext_sz + ext_sz + align_sz + token_sz); ep = (byte *) new_edep; sys_memcpy((void *) ep, (void *) edep, dist_ext_sz); @@ -669,6 +675,18 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize) } else { erts_refc_inc(&new_edep->binp->intern.refc, 2); } + + /* Copy the seq_trace token */ + if (is_not_nil(*token)) { + ErlHeapFragment *heap_frag; + ErlOffHeap *ohp; + Eterm *hp; + heap_frag = erts_dist_ext_trailer(new_edep); + ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size); + hp = heap_frag->mem; + ohp = &heap_frag->off_heap; + *token = copy_struct(*token, token_size, &hp, ohp); + } return new_edep; } diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index 1223f90fcc..91c028c9bd 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -176,7 +176,7 @@ byte* erts_encode_ext_ets(Eterm, byte *, struct erl_off_heap_header** ext_off_he void erts_free_dist_ext_copy(ErtsDistExternal *); ERTS_GLB_INLINE void *erts_dist_ext_trailer(ErtsDistExternal *); -ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Uint); +ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Eterm *); void *erts_dist_ext_trailer(ErtsDistExternal *); void erts_destroy_dist_ext_copy(ErtsDistExternal *); diff --git a/erts/emulator/beam/msg_instrs.tab b/erts/emulator/beam/msg_instrs.tab index 9bf3aefaca..6f8d1469ef 100644 --- a/erts/emulator/beam/msg_instrs.tab +++ b/erts/emulator/beam/msg_instrs.tab @@ -137,8 +137,8 @@ i_loop_rec(Dest) { if (ERTS_UNLIKELY(ERTS_SIG_IS_EXTERNAL_MSG(msgp))) { FCALLS -= 10; /* FIXME: bump appropriate amount... */ - SWAPOUT; /* erts_decode_dist_message() may write to heap... */ - if (!erts_decode_dist_message(c_p, ERTS_PROC_LOCK_MAIN, msgp, 0)) { + SWAPOUT; /* erts_proc_sig_decode_dist() may write to heap... */ + if (!erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, msgp, 0)) { /* * A corrupt distribution message that we weren't able to decode; * remove it... diff --git a/erts/emulator/hipe/hipe_native_bif.c b/erts/emulator/hipe/hipe_native_bif.c index 211ce0492a..80e5d81023 100644 --- a/erts/emulator/hipe/hipe_native_bif.c +++ b/erts/emulator/hipe/hipe_native_bif.c @@ -579,7 +579,7 @@ Eterm hipe_check_get_msg(Process *c_p) if (ERTS_SIG_IS_EXTERNAL_MSG(msgp)) { /* FIXME: bump appropriate amount... */ - if (!erts_decode_dist_message(c_p, ERTS_PROC_LOCK_MAIN, msgp, 0)) { + if (!erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, msgp, 0)) { /* * A corrupt distribution message that we weren't able to decode; * remove it... -- cgit v1.2.3 From 6686877360432144bacbf4e95c23b1232eab1b08 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Wed, 26 Sep 2018 11:52:24 +0200 Subject: erts: Expand distribution protocol documentation --- erts/doc/src/erl_dist_protocol.xml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'erts') diff --git a/erts/doc/src/erl_dist_protocol.xml b/erts/doc/src/erl_dist_protocol.xml index cf515795b4..ce5acfbd55 100644 --- a/erts/doc/src/erl_dist_protocol.xml +++ b/erts/doc/src/erl_dist_protocol.xml @@ -532,7 +532,7 @@ io:format("old/unused name ~ts at port ~p, fd = ~p ~n", Distribution Handshake

This section describes the distribution handshake protocol introduced - in Erlang/OTP R6. The handshake has remaining almost the same since then.

+ in Erlang/OTP R6. The handshake has remained almost the same since then.

General @@ -979,6 +979,7 @@ DiB == gen_digest(ChA, ICA)? EXIT

{3, FromPid, ToPid, Reason}

+

This signal is sent when a link has been broken

 UNLINK @@ -1001,6 +1002,7 @@ DiB == gen_digest(ChA, ICA)? EXIT2

{8, FromPid, ToPid, Reason}

+

This signal is sent by a call to the erlang:exit/2 bif
-- cgit v1.2.3 From f2c4f6f83deecba0c2527e520f0f18fba7d84815 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Wed, 26 Sep 2018 11:55:01 +0200 Subject: erts: Implement fragmentation of distrubution messages --- erts/doc/src/erl_dist_protocol.xml | 2 +- erts/doc/src/erl_ext_dist.xml | 9 +- erts/emulator/beam/bif.c | 3 + erts/emulator/beam/dist.c | 929 +++++++++++++++++++--------- erts/emulator/beam/dist.h | 30 +- erts/emulator/beam/erl_alloc.types | 1 + erts/emulator/beam/erl_message.c | 73 ++- erts/emulator/beam/erl_message.h | 27 +- erts/emulator/beam/erl_node_tables.c | 54 +- erts/emulator/beam/erl_node_tables.h | 17 +- erts/emulator/beam/erl_proc_sig_queue.c | 195 +++--- erts/emulator/beam/erl_proc_sig_queue.h | 13 + erts/emulator/beam/erl_process.c | 1 + erts/emulator/beam/erl_process_dump.c | 23 +- erts/emulator/beam/erl_ptab.h | 5 +- erts/emulator/beam/external.c | 298 ++++++--- erts/emulator/beam/external.h | 63 +- erts/emulator/sys/common/erl_check_io.c | 2 +- erts/emulator/test/distribution_SUITE.erl | 182 +++++- erts/emulator/test/erts_test_utils.erl | 31 +- erts/emulator/test/node_container_SUITE.erl | 23 +- 21 files changed, 1374 insertions(+), 607 deletions(-) (limited to 'erts') diff --git a/erts/doc/src/erl_dist_protocol.xml b/erts/doc/src/erl_dist_protocol.xml index ce5acfbd55..185c75fe84 100644 --- a/erts/doc/src/erl_dist_protocol.xml +++ b/erts/doc/src/erl_dist_protocol.xml @@ -899,7 +899,7 @@ DiB == gen_digest(ChA, ICA)?

Distribution header - describing the atom cache. + describing the atom cache and fragmented distribution messages.

diff --git a/erts/doc/src/erl_ext_dist.xml b/erts/doc/src/erl_ext_dist.xml index b7090d0472..29c6694a6b 100644 --- a/erts/doc/src/erl_ext_dist.xml +++ b/erts/doc/src/erl_ext_dist.xml @@ -136,15 +136,8 @@
-
+
Distribution Header -

- - As from ERTS 5.7.2 the old atom cache protocol was - dropped and a new one was introduced. This protocol - introduced the distribution header. Nodes with an ERTS version - earlier than 5.7.2 can still communicate with new nodes, - but no distribution header and no atom cache are used.

The distribution header only contains an atom cache reference section, but can in the future contain more diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index ff7db0e742..a71907505c 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -225,6 +225,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1) code = erts_dsig_send_link(&dsd, BIF_P->common.id, BIF_ARG_1); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); + ASSERT(code == ERTS_DSIG_SEND_OK); BIF_RET(am_true); break; } @@ -2094,6 +2095,7 @@ BIF_RETTYPE send_3(BIF_ALIST_3) ctx->return_term = am_ok; ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT; + ctx->dss.from = BIF_P->common.id; while (is_list(l)) { if (CAR(list_val(l)) == am_noconnect) { @@ -2246,6 +2248,7 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg) ctx->return_term = msg; ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT; + ctx->dss.from = p->common.id; result = do_send(p, to, msg, &ref, ctx); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 91a9481d84..78674848a1 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -55,15 +55,21 @@ */ #if 0 #define ERTS_DIST_MSG_DBG +FILE *dbg_file; #endif #if 0 +/* Enable this to print the dist debug messages to a file instead */ +#define ERTS_DIST_MSG_DBG_FILE "/tmp/dist_dbg.%d" +#endif +#if 0 +/* Enable this to print the raw bytes sent and received */ #define ERTS_RAW_DIST_MSG_DBG #endif #if defined(ERTS_DIST_MSG_DBG) || defined(ERTS_RAW_DIST_MSG_DBG) static void bw(byte *buf, ErlDrvSizeT sz) { - bin_write(ERTS_PRINT_STDERR, NULL, buf, sz); + bin_write(ERTS_PRINT_FILE, dbg_file, buf, sz); } #endif @@ -71,37 +77,93 @@ static void bw(byte *buf, ErlDrvSizeT sz) static void dist_msg_dbg(ErtsDistExternal *edep, char *what, byte *buf, int sz) { - ErtsHeapFactory factory; - byte *extp = edep->extp; + byte *extp = edep->data->extp; Eterm msg; Sint ctl_len; - Sint size = ctl_len = erts_decode_dist_ext_size(edep); + Sint size = ctl_len = erts_decode_dist_ext_size(edep, 0); if (size < 0) { - erts_fprintf(stderr, + erts_fprintf(dbg_file, "DIST MSG DEBUG: erts_decode_dist_ext_size(%s) failed:\n", what); bw(buf, sz); } else { - ErlHeapFragment *mbuf = new_message_buffer(size); - erts_factory_static_init(&factory, mbuf->mem, ctl_len, &mbuf->off_heap); - msg = erts_decode_dist_ext(&factory, edep); + ErtsHeapFactory factory; + ErtsMessage *mbuf = erts_factory_message_create(&factory, NULL, 0, ctl_len); + /* Set mbuf msg to NIL as erts_factory_undo will fail otherwise */ + ERL_MESSAGE_TERM(mbuf) = NIL; + msg = erts_decode_dist_ext(&factory, edep, 0); if (is_value(msg)) - erts_fprintf(stderr, " %s: %.80T\n", what, msg); + erts_fprintf(dbg_file, " %s: %.80T\n", what, msg); else { - erts_fprintf(stderr, + erts_fprintf(dbg_file, "DIST MSG DEBUG: erts_decode_dist_ext(%s) failed:\n", what); bw(buf, sz); } - free_message_buffer(mbuf); - edep->extp = extp; + erts_factory_undo(&factory); + edep->data->extp = extp; } } +static char *erts_dop_to_string(enum dop dop) { + if (dop == DOP_LINK) + return "LINK"; + if (dop == DOP_SEND) + return "SEND"; + if (dop == DOP_EXIT) + return "EXIT"; + if (dop == DOP_UNLINK) + return "UNLINK"; + if (dop == DOP_REG_SEND) + return "REG_SEND"; + if (dop == DOP_GROUP_LEADER) + return "GROUP_LEADER"; + if (dop == DOP_EXIT2) + return "EXIT2"; + if (dop == DOP_SEND_TT) + return "SEND_TT"; + if (dop == DOP_EXIT_TT) + return "EXIT_TT"; + if (dop == DOP_REG_SEND_TT) + return "REG_SEND_TT"; + if (dop == DOP_EXIT2_TT) + return "EXIT2_TT"; + if (dop == DOP_MONITOR_P) + return "MONITOR_P"; + if (dop == DOP_DEMONITOR_P) + return "DEMONITOR_P"; + if (dop == DOP_MONITOR_P_EXIT) + return "MONITOR_P_EXIT"; + if (dop == DOP_SEND_SENDER) + return "SEND_SENDER"; + if (dop == DOP_SEND_SENDER_TT) + return "SEND_SENDER_TT"; + if (dop == DOP_PAYLOAD_EXIT) + return "PAYLOAD_EXIT"; + if (dop == DOP_PAYLOAD_EXIT_TT) + return "PAYLOAD_EXIT_TT"; + if (dop == DOP_PAYLOAD_EXIT2) + return "PAYLOAD_EXIT2"; + if (dop == DOP_PAYLOAD_EXIT2_TT) + return "PAYLOAD_EXIT2_TT"; + if (dop == DOP_PAYLOAD_MONITOR_P_EXIT) + return "PAYLOAD_MONITOR_P_EXIT"; + ASSERT(0); + return "UNKNOWN"; +} + #endif +#if defined(VALGRIND) +#include +#include +# define PURIFY_MSG(msg) \ + VALGRIND_PRINTF("%s, line %d: %s", __FILE__, __LINE__, msg) +#else +# define PURIFY_MSG(msg) +#endif int erts_is_alive; /* System must be blocked on change */ int erts_dist_buf_busy_limit; @@ -115,13 +177,16 @@ static Export *dist_ctrl_put_data_trap; /* forward declarations */ -static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, int force_busy); +static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, int force_busy); static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy); static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm); static void init_nodes_monitors(void); static Sint abort_connection(DistEntry* dep, Uint32 conn_id); static ErtsDistOutputBuf* clear_de_out_queues(DistEntry*); static void free_de_out_queues(DistEntry*, ErtsDistOutputBuf*); +int erts_dist_seq_tree_foreach_delete_yielding(DistSeqNode **root, + void **vyspp, + Sint limit); static erts_atomic_t no_caches; static erts_atomic_t no_nodes; @@ -142,7 +207,6 @@ delete_cache(ErtsAtomCache *cache) } } - static void create_cache(DistEntry *dep) { @@ -207,12 +271,14 @@ typedef enum { ERTS_CML_CLEANUP_STATE_LINKS, ERTS_CML_CLEANUP_STATE_MONITORS, ERTS_CML_CLEANUP_STATE_ONAME_MONITORS, + ERTS_CML_CLEANUP_STATE_SEQUENCES, ERTS_CML_CLEANUP_STATE_NODE_MONITORS -} ErtsConMonLnkCleaupState; +} ErtsConMonLnkSeqCleanupState; typedef struct { - ErtsConMonLnkCleaupState state; + ErtsConMonLnkSeqCleanupState state; ErtsMonLnkDist *dist; + DistSeqNode *seq; void *yield_state; int trigger_node_monitors; Eterm nodename; @@ -220,12 +286,12 @@ typedef struct { Eterm reason; ErlOffHeap oh; Eterm heap[1]; -} ErtsConMonLnkCleanup; +} ErtsConMonLnkSeqCleanup; static void -con_monitor_link_cleanup(void *vcmlcp) +con_monitor_link_seq_cleanup(void *vcmlcp) { - ErtsConMonLnkCleanup *cmlcp = vcmlcp; + ErtsConMonLnkSeqCleanup *cmlcp = vcmlcp; ErtsMonLnkDist *dist = cmlcp->dist; ErtsSchedulerData *esdp; int reds = CONTEXT_REDS; @@ -262,6 +328,15 @@ con_monitor_link_cleanup(void *vcmlcp) cmlcp->dist = NULL; erts_mon_link_dist_dec_refc(dist); + ASSERT(!cmlcp->yield_state); + cmlcp->state = ERTS_CML_CLEANUP_STATE_SEQUENCES; + case ERTS_CML_CLEANUP_STATE_SEQUENCES: + reds = erts_dist_seq_tree_foreach_delete_yielding(&cmlcp->seq, + &cmlcp->yield_state, + reds); + if (reds <= 0) + break; + ASSERT(!cmlcp->yield_state); cmlcp->state = ERTS_CML_CLEANUP_STATE_NODE_MONITORS; case ERTS_CML_CLEANUP_STATE_NODE_MONITORS: @@ -282,22 +357,23 @@ con_monitor_link_cleanup(void *vcmlcp) esdp = erts_get_scheduler_data(); ASSERT(esdp && esdp->type == ERTS_SCHED_NORMAL); erts_schedule_misc_aux_work((int) esdp->no, - con_monitor_link_cleanup, + con_monitor_link_seq_cleanup, (void *) cmlcp); } static void -schedule_con_monitor_link_cleanup(ErtsMonLnkDist *dist, - Eterm nodename, - Eterm visability, - Eterm reason) +schedule_con_monitor_link_seq_cleanup(ErtsMonLnkDist *dist, + DistSeqNode *seq, + Eterm nodename, + Eterm visability, + Eterm reason) { - if (dist || is_value(nodename)) { + if (dist || is_value(nodename) || seq) { ErtsSchedulerData *esdp; - ErtsConMonLnkCleanup *cmlcp; + ErtsConMonLnkSeqCleanup *cmlcp; Uint rsz, size; - size = sizeof(ErtsConMonLnkCleanup); + size = sizeof(ErtsConMonLnkSeqCleanup); if (is_non_value(reason) || is_immed(reason)) { rsz = 0; @@ -324,6 +400,8 @@ schedule_con_monitor_link_cleanup(ErtsMonLnkDist *dist, erts_mtx_unlock(&dist->mtx); } + cmlcp->seq = seq; + cmlcp->trigger_node_monitors = is_value(nodename); cmlcp->nodename = nodename; cmlcp->visability = visability; @@ -337,13 +415,13 @@ schedule_con_monitor_link_cleanup(ErtsMonLnkDist *dist, esdp = erts_get_scheduler_data(); ASSERT(esdp && esdp->type == ERTS_SCHED_NORMAL); erts_schedule_misc_aux_work((int) esdp->no, - con_monitor_link_cleanup, + con_monitor_link_seq_cleanup, (void *) cmlcp); } } /* -** A full node name constists of a "n@h" +** A full node name consists of a "n@h" ** ** n must be a valid node name: string of ([a-z][A-Z][0-9]_-)+ ** @@ -560,6 +638,7 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) } else { /* Call from distribution controller (port/process) */ ErtsMonLnkDist *mld; + DistSeqNode *sequences; ErtsAtomCache *cache; ErtsProcList *suspendees; ErtsDistOutputBuf *obuf; @@ -589,6 +668,9 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) mld = dep->mld; dep->mld = NULL; + sequences = dep->sequences; + dep->sequences = NULL; + nodename = dep->sysname; flags = dep->flags; @@ -612,14 +694,15 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason) erts_de_rwunlock(dep); - schedule_con_monitor_link_cleanup(mld, - nodename, - (flags & DFLAG_PUBLISHED - ? am_visible - : am_hidden), - (reason == am_normal - ? am_connection_closed - : reason)); + schedule_con_monitor_link_seq_cleanup(mld, + sequences, + nodename, + (flags & DFLAG_PUBLISHED + ? am_visible + : am_hidden), + (reason == am_normal + ? am_connection_closed + : reason)); erts_resume_processes(suspendees); @@ -653,6 +736,16 @@ void init_dist(void) { init_nodes_monitors(); +#ifdef ERTS_DIST_MSG_DBG_FILE + { + char buff[255]; + sprintf(buff, ERTS_DIST_MSG_DBG_FILE, getpid()); + dbg_file = fopen(buff,"w+"); + } +#elif defined (ERTS_DIST_MSG_DBG) + dbg_file = stderr; +#endif + nodedown.reason = NIL; nodedown.bp = NULL; @@ -676,21 +769,27 @@ void init_dist(void) } } -#define ErtsDistOutputBuf2Binary(OB) \ - ((Binary *) (((char *) (OB)) - offsetof(Binary, orig_bytes))) +#define ErtsDistOutputBuf2Binary(OB) OB->bin static ERTS_INLINE ErtsDistOutputBuf * -alloc_dist_obuf(Uint size) +alloc_dist_obuf(Uint size, Uint headers) { + int i; ErtsDistOutputBuf *obuf; - Uint obuf_size = sizeof(ErtsDistOutputBuf)+sizeof(byte)*(size-1); + Uint obuf_size = sizeof(ErtsDistOutputBuf)*(headers) + + sizeof(byte)*size; Binary *bin = erts_bin_drv_alloc(obuf_size); - obuf = (ErtsDistOutputBuf *) &bin->orig_bytes[0]; + obuf = (ErtsDistOutputBuf *) &bin->orig_bytes[size]; + erts_refc_add(&bin->intern.refc, headers - 1, 1); + for (i = 0; i < headers; i++) { + obuf[i].bin = bin; + obuf[i].extp = (byte *)&bin->orig_bytes[0]; #ifdef DEBUG - obuf->dbg_pattern = ERTS_DIST_OUTPUT_BUF_DBG_PATTERN; - obuf->alloc_endp = obuf->data + size; - ASSERT(bin == ErtsDistOutputBuf2Binary(obuf)); + obuf[i].dbg_pattern = ERTS_DIST_OUTPUT_BUF_DBG_PATTERN; + obuf[i].alloc_endp = obuf->extp + size; + ASSERT(bin == ErtsDistOutputBuf2Binary(obuf)); #endif + } return obuf; } @@ -705,8 +804,8 @@ free_dist_obuf(ErtsDistOutputBuf *obuf) static ERTS_INLINE Sint size_obuf(ErtsDistOutputBuf *obuf) { - Binary *bin = ErtsDistOutputBuf2Binary(obuf); - return bin->orig_size; + return sizeof(ErtsDistOutputBuf) + (obuf->ext_endp - obuf->ext_start) + + (obuf->hdr_endp - obuf->hdrp); } static ErtsDistOutputBuf* clear_de_out_queues(DistEntry* dep) @@ -771,7 +870,9 @@ int erts_dsend_context_dtor(Binary* ctx_bin) default:; } if (ctx->dss.phase >= ERTS_DSIG_SEND_PHASE_ALLOC && ctx->dss.obuf) { - free_dist_obuf(ctx->dss.obuf); + int i; + for (i = 0; i < ctx->dss.fragments; i++) + free_dist_obuf(&ctx->dss.obuf[i]); } if (ctx->deref_dep) erts_deref_dist_entry(ctx->dep); @@ -845,8 +946,8 @@ erts_dsig_send_unlink(ErtsDSigData *dsdp, Eterm local, Eterm remote) /* A local process that's being monitored by a remote one exits. We send: {DOP_MONITOR_P_EXIT, Local pid or name, Remote pid, ref, reason} */ int -erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, - Eterm ref, Eterm reason) +erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm from, Eterm watcher, Eterm watched, + Eterm ref, Eterm reason) { Eterm ctl, msg; DeclareTmpHeapNoproc(ctl_heap,6); @@ -871,7 +972,7 @@ erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, 1); + res = dsig_send_exit(dsdp, ctl, msg, from, 1); UnUseTmpHeapNoproc(6); return res; } @@ -1031,8 +1132,7 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) } int -erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, - ErtsSendContext* ctx) +erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, ErtsSendContext* ctx) { Eterm ctl; Eterm token = NIL; @@ -1149,13 +1249,13 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #endif DTRACE7(process_exit_signal_remote, sender_name, node_name, remote_name, reason_str, tok_label, tok_lastcnt, tok_serial); - res = dsig_send_exit(dsdp, ctl, msg, 1); + res = dsig_send_exit(dsdp, ctl, msg, local, 1); UnUseTmpHeapNoproc(6); return res; } int -erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason) +erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm from, Eterm local, Eterm remote, Eterm reason) { DeclareTmpHeapNoproc(ctl_heap,5); int res; @@ -1170,7 +1270,7 @@ erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason) ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, 1); + res = dsig_send_exit(dsdp, ctl, msg, from, 1); UnUseTmpHeapNoproc(5); return res; } @@ -1193,7 +1293,7 @@ erts_dsig_send_exit2(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, 0); + res = dsig_send_exit(dsdp, ctl, msg, local, 0); UnUseTmpHeapNoproc(5); return res; } @@ -1215,17 +1315,123 @@ erts_dsig_send_group_leader(ErtsDSigData *dsdp, Eterm leader, Eterm remote) return res; } -#if defined(PURIFY) -# define PURIFY_MSG(msg) \ - purify_printf("%s, line %d: %s", __FILE__, __LINE__, msg) -#elif defined(VALGRIND) -#include -#include -# define PURIFY_MSG(msg) \ - VALGRIND_PRINTF("%s, line %d: %s", __FILE__, __LINE__, msg) -#else -# define PURIFY_MSG(msg) -#endif +struct dist_sequences { + ErlHeapFragment hfrag; + struct dist_sequences *parent; + struct dist_sequences *left; + struct dist_sequences *right; + char is_red; + + Uint64 seq_id; + int cnt; + Sint ctl_len; +}; + +#define ERTS_RBT_PREFIX dist_seq +#define ERTS_RBT_T DistSeqNode +#define ERTS_RBT_KEY_T Uint +#define ERTS_RBT_FLAGS_T int +#define ERTS_RBT_INIT_EMPTY_TNODE(T) \ + do { \ + (T)->parent = NULL; \ + (T)->left = NULL; \ + (T)->right = NULL; \ + (T)->is_red = 0; \ + } while(0) +#define ERTS_RBT_IS_RED(T) ((T)->is_red) +#define ERTS_RBT_SET_RED(T) ((T)->is_red = 1) +#define ERTS_RBT_IS_BLACK(T) (!ERTS_RBT_IS_RED(T)) +#define ERTS_RBT_SET_BLACK(T) ((T)->is_red = 0) +#define ERTS_RBT_GET_FLAGS(T) ((T)->is_red) +#define ERTS_RBT_SET_FLAGS(T, F) ((T)->is_red = F) +#define ERTS_RBT_GET_PARENT(T) ((T)->parent) +#define ERTS_RBT_SET_PARENT(T, P) ((T)->parent = P) +#define ERTS_RBT_GET_RIGHT(T) ((T)->right) +#define ERTS_RBT_SET_RIGHT(T, R) ((T)->right = (R)) +#define ERTS_RBT_GET_LEFT(T) ((T)->left) +#define ERTS_RBT_SET_LEFT(T, L) ((T)->left = (L)) +#define ERTS_RBT_GET_KEY(T) ((T)->seq_id) +#define ERTS_RBT_IS_LT(KX, KY) (KX < KY) +#define ERTS_RBT_IS_EQ(KX, KY) (KX == KY) +#define ERTS_RBT_WANT_DELETE +#define ERTS_RBT_WANT_LOOKUP_INSERT +#define ERTS_RBT_WANT_LOOKUP +#define ERTS_RBT_WANT_FOREACH +#define ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING + +#include "erl_rbtree.h" + +struct erts_dist_seq_tree_foreach_iter_arg { + int (*func)(ErtsDistExternal *, void *, Sint); + void *arg; +}; + +static int +erts_dist_seq_tree_foreach_iter(DistSeqNode *seq, void *arg, Sint reds) +{ + struct erts_dist_seq_tree_foreach_iter_arg *state = arg; + return state->func(erts_get_dist_ext(&seq->hfrag), state->arg, reds); +} + +void +erts_dist_seq_tree_foreach(DistEntry *dep, int (*func)(ErtsDistExternal *, void *, Sint), void *arg) +{ + struct erts_dist_seq_tree_foreach_iter_arg state; + state.func = func; + state.arg = arg; + dist_seq_rbt_foreach(dep->sequences, erts_dist_seq_tree_foreach_iter, &state); +} + +static int dist_seq_cleanup(DistSeqNode *seq, void *unused, Sint reds) +{ + erts_free_dist_ext_copy(erts_get_dist_ext(&seq->hfrag)); + free_message_buffer(&seq->hfrag); + return 1; +} + +typedef struct { + DistSeqNode *root; + dist_seq_rbt_yield_state_t rbt_ystate; +} DistSeqNodeYieldState; + +int +erts_dist_seq_tree_foreach_delete_yielding(DistSeqNode **root, + void **vyspp, + Sint limit) +{ + DistSeqNodeYieldState ys = {*root, ERTS_RBT_YIELD_STAT_INITER}; + DistSeqNodeYieldState *ysp; + int res; + + ysp = (DistSeqNodeYieldState *) *vyspp; + if (!ysp) { + *root = NULL; + ysp = &ys; + } + res = dist_seq_rbt_foreach_destroy_yielding(&ysp->root, + dist_seq_cleanup, + NULL, + &ysp->rbt_ystate, + limit); + if (res > 0) { + if (ysp != &ys) + erts_free(ERTS_ALC_T_ML_YIELD_STATE, ysp); + *vyspp = NULL; + } + else { + + if (ysp == &ys) { + ysp = erts_alloc(ERTS_ALC_T_SEQ_YIELD_STATE, + sizeof(DistSeqNodeYieldState)); + sys_memcpy((void *) ysp, (void *) &ys, + sizeof(DistSeqNodeYieldState)); + } + + *vyspp = (void *) ysp; + } + + return res; +} /* ** Input from distribution port. @@ -1246,7 +1452,9 @@ int erts_net_message(Port *prt, byte *buf, ErlDrvSizeT len) { - ErtsDistExternal ede; + ErtsDistExternal ede, *edep = &ede; + ErtsDistExternalData ede_data; + ErlHeapFragment *ede_hfrag = NULL; Sint ctl_len; Eterm arg; Eterm from, to; @@ -1285,10 +1493,12 @@ int erts_net_message(Port *prt, } #ifdef ERTS_RAW_DIST_MSG_DBG - erts_fprintf(stderr, "<< "); + erts_fprintf(dbg_file, "RECV: "); bw(buf, len); #endif + ede.data = &ede_data; + res = erts_prepare_dist_ext(&ede, buf, len, bin, dep, conn_id, dep->cache); switch (res) { @@ -1296,51 +1506,164 @@ int erts_net_message(Port *prt, return 0; /* Connection not alive; ignore signal... */ case ERTS_PREP_DIST_EXT_FAILED: #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "DIST MSG DEBUG: erts_prepare_dist_ext() failed:\n"); + erts_fprintf(dbg_file, "DIST MSG DEBUG: erts_prepare_dist_ext() failed:\n"); bw(buf, orig_len); #endif goto data_error; case ERTS_PREP_DIST_EXT_SUCCESS: - ctl_len = erts_decode_dist_ext_size(&ede); + ctl_len = erts_decode_dist_ext_size(&ede, 1); if (ctl_len < 0) { #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n"); + erts_fprintf(dbg_file, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n"); bw(buf, orig_len); #endif PURIFY_MSG("data error"); goto data_error; } + + /* A non-fragmented message */ + if (!ede.data->seq_id) { + if (ctl_len > DIST_CTL_DEFAULT_SIZE) { + ctl = erts_alloc(ERTS_ALC_T_DCTRL_BUF, ctl_len * sizeof(Eterm)); + } + + erts_factory_tmp_init(&factory, ctl, ctl_len, ERTS_ALC_T_DCTRL_BUF); + break; + } else { + DistSeqNode *seq; + Uint sz = erts_dist_ext_size(&ede); + Uint used_sz = ctl_len * sizeof(Eterm); + + /* We calculate the size of the heap fragment to be allocated. + The used_size part has to be larger that the ctl data and the + DistSeqNode. */ + if (used_sz + (sizeof(ErlHeapFragment) - sizeof(Eterm)) < sizeof(DistSeqNode)) + used_sz = sizeof(DistSeqNode) - (sizeof(ErlHeapFragment) - sizeof(Eterm)); + + seq = (DistSeqNode *)new_message_buffer((sz + used_sz) / sizeof(Eterm)); + seq->hfrag.used_size = used_sz / sizeof(Eterm); + + seq->ctl_len = ctl_len; + seq->seq_id = ede.data->seq_id; + seq->cnt = ede.data->frag_id; + if (dist_seq_rbt_lookup_insert(&dep->sequences, seq) != NULL) { + free_message_buffer(&seq->hfrag); + goto data_error; + } + + erts_make_dist_ext_copy(&ede, erts_get_dist_ext(&seq->hfrag)); + + if (ede.data->frag_id > 1) { + seq->cnt--; + return 0; + } + } + + /* fall through, the first fragment in the sequence was the last fragment */ + case ERTS_PREP_DIST_EXT_FRAG_CONT: { + DistSeqNode *seq = dist_seq_rbt_lookup(dep->sequences, ede.data->seq_id); + + if (!seq) + goto data_error; + + /* If we did a fall-though we already did this */ + if (res == ERTS_PREP_DIST_EXT_FRAG_CONT) + erts_dist_ext_frag(&ede_data, erts_get_dist_ext(&seq->hfrag)); + + /* Verify that the fragments have arrived in the correct order */ + if (seq->cnt != ede.data->frag_id) + goto data_error; + + seq->cnt--; + + /* Check if this was the last fragment */ + if (ede.data->frag_id > 1) + return 0; + + /* Last fragment arrived, time to dispatch the signal */ + dist_seq_rbt_delete(&dep->sequences, seq); + ctl_len = seq->ctl_len; + + /* Now that we no longer need the DistSeqNode we re-use the heapfragment + to decode the ctl msg into. We don't need the ctl message to be in + the heapfragment, but we decode into the heapfragment speculatively + in case there is a trace token that we need. */ + erts_factory_heap_frag_init(&factory, &seq->hfrag); + edep = erts_get_dist_ext(&seq->hfrag); + ede_hfrag = &seq->hfrag; + + /* If the sequence consisted of more than 1 fragment we create one large + binary out of all of the fragments. This because erts_decode_ext + cannot handle a segmented buffer. + TODO: Move this copy to as late as possible, preferably in in the + erts_decode_dist_ext in the receiving process. + */ + if (edep->data->frag_id > 1) { + Uint sz = 0; + Binary *bin; + int i; + byte *ep; + + for (i = 0; i < edep->data->frag_id; i++) + sz += edep->data[i].ext_endp - edep->data[i].extp; + + bin = erts_bin_nrml_alloc(sz); + ep = (byte*)bin->orig_bytes; + + for (i = 0; i < edep->data->frag_id; i++) { + sys_memcpy(ep, edep->data[i].extp, edep->data[i].ext_endp - edep->data[i].extp); + ep += edep->data[i].ext_endp - edep->data[i].extp; + erts_bin_release(edep->data[i].binp); + edep->data[i].binp = NULL; + edep->data[i].extp = NULL; + edep->data[i].ext_endp = NULL; + } + + edep->data->frag_id = 1; + edep->data->extp = (byte*)bin->orig_bytes; + edep->data->ext_endp = ep; + edep->data->binp = bin; + } + break; + } default: ERTS_INTERNAL_ERROR("Unexpected result from erts_prepare_dist_ext()"); break; } - if (ctl_len > DIST_CTL_DEFAULT_SIZE) { - ctl = erts_alloc(ERTS_ALC_T_DCTRL_BUF, ctl_len * sizeof(Eterm)); - } - - erts_factory_tmp_init(&factory, ctl, ctl_len, ERTS_ALC_T_DCTRL_BUF); - arg = erts_decode_dist_ext(&factory, &ede); + arg = erts_decode_dist_ext(&factory, edep, 1); if (is_non_value(arg)) { #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext(CTL) failed:\n"); + erts_fprintf(dbg_file, "DIST MSG DEBUG: erts_decode_dist_ext(CTL) failed:\n"); bw(buf, orig_len); #endif PURIFY_MSG("data error"); goto decode_error; } -#ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, "<< CTL: %.80T\n", arg); -#endif + /* Fill the unused part of the hfrag with a bignum header */ + if (ede_hfrag && ede_hfrag->mem + ede_hfrag->used_size > factory.hp) { + Uint slot = factory.hp - ede_hfrag->mem; + ede_hfrag->mem[slot] = make_pos_bignum_header(ede_hfrag->used_size - slot - 1); + } if (is_not_tuple(arg) || (tuple = tuple_val(arg), (tuple_arity = arityval(*tuple)) < 1) || is_not_small(tuple[1])) { +#ifdef ERTS_DIST_MSG_DBG + if (is_tuple(arg) && arityval(*tuple) > 1) + erts_fprintf(dbg_file, "RECV: CTL: %s: %.80T\n", + erts_dop_to_string(unsigned_val(tuple[1])), arg); +#endif goto invalid_message; } +#ifdef ERTS_DIST_MSG_DBG + erts_fprintf(dbg_file, "RECV: CTL: %s: %.80T\n", + erts_dop_to_string(unsigned_val(tuple[1])), arg); +#endif + token = NIL; switch (type = unsigned_val(tuple[1])) { @@ -1385,7 +1708,7 @@ int erts_net_message(Port *prt, code = erts_dsig_prepare(&dsd, dep, NULL, 0, ERTS_DSP_NO_LOCK, 0, 0); if (code == ERTS_DSIG_PREP_CONNECTED) { - code = erts_dsig_send_exit(&dsd, to, from, am_noproc); + code = erts_dsig_send_exit(&dsd, to, to, from, am_noproc); ASSERT(code == ERTS_DSIG_SEND_OK); } @@ -1475,7 +1798,7 @@ int erts_net_message(Port *prt, code = erts_dsig_prepare(&dsd, dep, NULL, 0, ERTS_DSP_NO_LOCK, 0, 0); if (code == ERTS_DSIG_PREP_CONNECTED) { - code = erts_dsig_send_m_exit(&dsd, watcher, watched, ref, + code = erts_dsig_send_m_exit(&dsd, pid, watcher, watched, ref, am_noproc); ASSERT(code == ERTS_DSIG_SEND_OK); } @@ -1549,7 +1872,7 @@ int erts_net_message(Port *prt, } #ifdef ERTS_DIST_MSG_DBG - dist_msg_dbg(&ede, "MSG", buf, orig_len); + dist_msg_dbg(edep, "MSG", buf, orig_len); #endif from = tuple[2]; @@ -1560,7 +1883,6 @@ int erts_net_message(Port *prt, rp = erts_whereis_process(NULL, 0, to, 0, 0); if (rp) { ErtsProcLocks locks = 0; - ErtsDistExternal *ede_copy; if (type == DOP_REG_SEND) { token = NIL; @@ -1568,13 +1890,14 @@ int erts_net_message(Port *prt, token = tuple[5]; } - ede_copy = erts_make_dist_ext_copy(&ede, &token); - - erts_queue_dist_message(rp, locks, ede_copy, token, from); + erts_queue_dist_message(rp, locks, edep, ede_hfrag, token, from); if (locks) erts_proc_unlock(rp, locks); - } + } else if (ede_hfrag) { + erts_free_dist_ext_copy(erts_get_dist_ext(ede_hfrag)); + free_message_buffer(ede_hfrag); + } break; case DOP_SEND_SENDER_TT: { @@ -1606,7 +1929,7 @@ int erts_net_message(Port *prt, : tuple[2] == am_Empty); #ifdef ERTS_DIST_MSG_DBG - dist_msg_dbg(&ede, "MSG", buf, orig_len); + dist_msg_dbg(edep, "MSG", buf, orig_len); #endif to = tuple[3]; if (is_not_pid(to)) { @@ -1615,20 +1938,19 @@ int erts_net_message(Port *prt, rp = erts_proc_lookup(to); if (rp) { ErtsProcLocks locks = 0; - ErtsDistExternal *ede_copy; - - ede_copy = erts_make_dist_ext_copy(&ede, &token); - erts_queue_dist_message(rp, locks, ede_copy, token, am_Empty); + erts_queue_dist_message(rp, locks, edep, ede_hfrag, token, am_Empty); if (locks) erts_proc_unlock(rp, locks); - } + } else if (ede_hfrag) { + erts_free_dist_ext_copy(erts_get_dist_ext(ede_hfrag)); + free_message_buffer(ede_hfrag); + } break; } case DOP_PAYLOAD_MONITOR_P_EXIT: case DOP_MONITOR_P_EXIT: { - ErtsDistExternal *ede_copy = NULL; /* We are monitoring a process on the remote node which dies, we get {DOP_MONITOR_P_EXIT, Remote pid or name, Local pid, ref, reason} */ @@ -1663,19 +1985,18 @@ int erts_net_message(Port *prt, goto invalid_message; } + if (!erts_proc_lookup(watcher)) break; /* Process not alive */ + if (reason == THE_NON_VALUE) { #ifdef ERTS_DIST_MSG_DBG - dist_msg_dbg(&ede, "MSG", buf, orig_len); + dist_msg_dbg(edep, "MSG", buf, orig_len); #endif - if (!erts_proc_lookup(watcher)) break; /* Process not alive */ - - ede_copy = erts_make_dist_ext_copy(&ede, &token); } - erts_proc_sig_send_dist_monitor_down(dep, ref, watched, - watcher, ede_copy, reason); + erts_proc_sig_send_dist_monitor_down( + dep, ref, watched, watcher, edep, ede_hfrag, reason); break; } @@ -1683,7 +2004,6 @@ int erts_net_message(Port *prt, case DOP_PAYLOAD_EXIT_TT: case DOP_EXIT_TT: case DOP_EXIT: { - ErtsDistExternal *ede_copy = NULL; /* 'from', which 'to' is linked to, died */ from = tuple[2]; @@ -1720,19 +2040,16 @@ int erts_net_message(Port *prt, goto invalid_message; } - if (reason == THE_NON_VALUE) { + if (!erts_proc_lookup(to)) break; /* Process not alive */ + if (reason == THE_NON_VALUE) { #ifdef ERTS_DIST_MSG_DBG - dist_msg_dbg(&ede, "MSG", buf, orig_len); + dist_msg_dbg(edep, "MSG", buf, orig_len); #endif - - if (!erts_proc_lookup(to)) break; /* Process not alive */ - - ede_copy = erts_make_dist_ext_copy(&ede, &token); } erts_proc_sig_send_dist_link_exit(dep, - from, to, ede_copy, + from, to, edep, ede_hfrag, reason, token); break; } @@ -1740,7 +2057,6 @@ int erts_net_message(Port *prt, case DOP_PAYLOAD_EXIT2: case DOP_EXIT2_TT: case DOP_EXIT2: { - ErtsDistExternal *ede_copy = NULL; /* 'from' is send an exit signal to 'to' */ from = tuple[2]; @@ -1777,18 +2093,15 @@ int erts_net_message(Port *prt, goto invalid_message; } - if (reason == THE_NON_VALUE) { + if (!erts_proc_lookup(to)) break; /* Process not alive */ + if (reason == THE_NON_VALUE) { #ifdef ERTS_DIST_MSG_DBG - dist_msg_dbg(&ede, "MSG", buf, orig_len); + dist_msg_dbg(edep, "MSG", buf, orig_len); #endif - - if (!erts_proc_lookup(to)) break; /* Process not alive */ - - ede_copy = erts_make_dist_ext_copy(&ede, &token); } - erts_proc_sig_send_dist_exit(dep, from, to, ede_copy, reason, token); + erts_proc_sig_send_dist_exit(dep, from, to, edep, ede_hfrag, reason, token); break; } case DOP_GROUP_LEADER: @@ -1804,13 +2117,15 @@ int erts_net_message(Port *prt, (void) erts_proc_sig_send_group_leader(NULL, to, from, NIL); break; - default: + default: goto invalid_message; } - erts_factory_close(&factory); - if (ctl != ctl_default) { - erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl); + if (ede_hfrag == NULL) { + erts_factory_close(&factory); + if (ctl != ctl_default) { + erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl); + } } UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); ERTS_CHK_NO_PROC_LOCKS; @@ -1823,9 +2138,14 @@ int erts_net_message(Port *prt, } decode_error: PURIFY_MSG("data error"); - erts_factory_close(&factory); - if (ctl != ctl_default) { - erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl); + if (ede_hfrag == NULL) { + erts_factory_close(&factory); + if (ctl != ctl_default) { + erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl); + } + } else { + erts_free_dist_ext_copy(erts_get_dist_ext(ede_hfrag)); + free_message_buffer(ede_hfrag); } data_error: UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE); @@ -1834,18 +2154,17 @@ data_error: return -1; } -static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, int force_busy) +static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, int force_busy) { struct erts_dsig_send_context ctx; int ret; ctx.ctl = ctl; ctx.msg = msg; + ctx.from = from; ctx.force_busy = force_busy; ctx.force_encode = 1; ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; -#ifdef DEBUG ctx.reds = 1; /* provoke assert below (no reduction count with force_encode) */ -#endif ret = erts_dsig_send(dsdp, &ctx); ASSERT(ret != ERTS_DSIG_SEND_CONTINUE); return ret; @@ -1857,12 +2176,11 @@ static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) int ret; ctx.ctl = ctl; ctx.msg = THE_NON_VALUE; + ctx.from = THE_NON_VALUE; ctx.force_busy = force_busy; ctx.force_encode = 1; ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; -#ifdef DEBUG ctx.reds = 1; /* provoke assert below (no reduction count without msg) */ -#endif ret = erts_dsig_send(dsdp, &ctx); ASSERT(ret != ERTS_DSIG_SEND_CONTINUE); return ret; @@ -1926,9 +2244,11 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) } #ifdef ERTS_DIST_MSG_DBG - erts_fprintf(stderr, ">> CTL: %.80T\n", ctx->ctl); + erts_fprintf(dbg_file, "SEND: CTL: %s: %.80T\n", + erts_dop_to_string(unsigned_val(tuple_val(ctx->ctl)[1])), + ctx->ctl); if (is_value(ctx->msg)) - erts_fprintf(stderr, " MSG: %.80T\n", ctx->msg); + erts_fprintf(dbg_file, " MSG: %.160T\n", ctx->msg); #endif ctx->data_size = ctx->max_finalize_prepend; @@ -1958,16 +2278,32 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) case ERTS_DSIG_SEND_PHASE_ALLOC: erts_finalize_atom_cache_map(ctx->acmp, ctx->flags); - ctx->dhdr_ext_size = erts_encode_ext_dist_header_size(ctx->acmp); - ctx->data_size += ctx->dhdr_ext_size; + if (ctx->flags & DFLAG_FRAGMENTS && is_value(ctx->msg) && is_not_immed(ctx->msg)) { + /* Calculate the max number of fragments that are needed */ + ASSERT(is_pid(ctx->from) && + "from has to be a pid because it is used as sequence id"); + ctx->fragments = ctx->data_size / ERTS_DIST_FRAGMENT_SIZE + 1; + } else + ctx->fragments = 1; - ctx->obuf = alloc_dist_obuf(ctx->data_size); - ctx->obuf->ext_endp = &ctx->obuf->data[0] + ctx->max_finalize_prepend + ctx->dhdr_ext_size; + ctx->dhdr_ext_size = erts_encode_ext_dist_header_size(ctx->acmp, ctx->fragments); + + ctx->obuf = alloc_dist_obuf( + ctx->dhdr_ext_size + ctx->data_size + + (ctx->fragments-1) * ERTS_DIST_FRAGMENT_HEADER_SIZE, + ctx->fragments); + ctx->obuf->ext_start = &ctx->obuf->extp[0]; + ctx->obuf->ext_endp = &ctx->obuf->extp[0] + ctx->max_finalize_prepend + ctx->dhdr_ext_size; /* Encode internal version of dist header */ - ctx->obuf->extp = erts_encode_ext_dist_header_setup(ctx->obuf->ext_endp, ctx->acmp); + ctx->obuf->extp = erts_encode_ext_dist_header_setup( + ctx->obuf->ext_endp, ctx->acmp, ctx->fragments, ctx->from); /* Encode control message */ erts_encode_dist_ext(ctx->ctl, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, NULL, NULL); + + ctx->obuf->hdrp = NULL; + ctx->obuf->hdr_endp = NULL; + if (is_non_value(ctx->msg)) { ctx->obuf->msg_start = NULL; ctx->phase = ERTS_DSIG_SEND_PHASE_FIN; @@ -1988,33 +2324,91 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) goto done; } } else { - erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, NULL, NULL); + erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, + ctx->acmp, NULL, NULL); } - ctx->phase = ERTS_DSIG_SEND_PHASE_FIN; + ctx->phase = ERTS_DSIG_SEND_PHASE_FIN; case ERTS_DSIG_SEND_PHASE_FIN: { - DistEntry *dep = dsdp->dep; - int suspended = 0; - int resume = 0; ASSERT(ctx->obuf->extp < ctx->obuf->ext_endp); - ASSERT(&ctx->obuf->data[0] <= ctx->obuf->extp - ctx->max_finalize_prepend); - ASSERT(ctx->obuf->ext_endp <= &ctx->obuf->data[0] + ctx->data_size); + ASSERT(((byte*)&ctx->obuf->bin->orig_bytes[0]+obuf_list_size) <= ctx->obuf->extp - ctx->max_finalize_prepend); + ASSERT(ctx->obuf->ext_endp <= ((byte*)ctx->obuf->bin->orig_bytes+obuf_list_size) + ctx->data_size + ctx->dhdr_ext_size); ctx->data_size = ctx->obuf->ext_endp - ctx->obuf->extp; - if (ctx->data_size > (Uint) INT_MAX) { - free_dist_obuf(ctx->obuf); - ctx->obuf = NULL; - retval = ERTS_DSIG_SEND_TOO_LRG; - goto done; - } ctx->obuf->hopefull_flags = ctx->u.ec.hopefull_flags; - /* + + if (ctx->fragments > 1) { + int fin_fragments; + int i; + byte *msg = ctx->obuf->msg_start, + *msg_end = ctx->obuf->ext_endp, + *hdrp = msg_end; + + ASSERT((ctx->obuf->hopefull_flags & ctx->flags) == ctx->obuf->hopefull_flags); + ASSERT(get_int64(ctx->obuf->extp + 1 + 1 + 8) == ctx->fragments); + + /* Now that encoding is done we know how large the term will + be so we adjust the number of fragments to send. Note that + this can mean that only 1 fragment is sent. */ + fin_fragments = (ctx->obuf->ext_endp - ctx->obuf->msg_start + ERTS_DIST_FRAGMENT_SIZE-1) / + ERTS_DIST_FRAGMENT_SIZE - 1; + + /* Update the frag_id in the DIST_FRAG_HEADER */ + put_int64(fin_fragments+1, ctx->obuf->extp + 1 + 1 + 8); + + if (fin_fragments > 0) + msg += ERTS_DIST_FRAGMENT_SIZE; + else + msg = msg_end; + ctx->obuf->next = &ctx->obuf[1]; + ctx->obuf->ext_endp = msg; + + /* Loop through all fragments, updating the output buffers + to be correct and also writing the DIST_FRAG_CONT header. */ + for (i = 1; i < fin_fragments + 1; i++) { + ctx->obuf[i].hopefull_flags = 0; + ctx->obuf[i].extp = msg; + ctx->obuf[i].ext_start = msg; + if (msg + ERTS_DIST_FRAGMENT_SIZE > msg_end) + ctx->obuf[i].ext_endp = msg_end; + else { + msg += ERTS_DIST_FRAGMENT_SIZE; + ctx->obuf[i].ext_endp = msg; + } + ASSERT(ctx->obuf[i].ext_endp > ctx->obuf[i].extp); + ctx->obuf[i].hdrp = erts_encode_ext_dist_header_fragment( + &hdrp, fin_fragments - i + 1, ctx->from); + ctx->obuf[i].hdr_endp = hdrp; + ctx->obuf[i].next = &ctx->obuf[i+1]; + } + /* If the initial fragment calculation was incorrect we free the + remaining output buffers. */ + for (; i < ctx->fragments; i++) { + free_dist_obuf(&ctx->obuf[i]); + } + if (!ctx->force_encode && !ctx->force_busy) + ctx->reds -= ctx->fragments; + ctx->fragments = fin_fragments + 1; + } + + ctx->phase = ERTS_DSIG_SEND_PHASE_SEND; + + if (ctx->reds <= 0) { + retval = ERTS_DSIG_SEND_CONTINUE; + goto done; + } + } + case ERTS_DSIG_SEND_PHASE_SEND: { + /* * Signal encoded; now verify that the connection still exists, * and if so enqueue the signal and schedule it for send. */ - ctx->obuf->next = NULL; + DistEntry *dep = dsdp->dep; + int suspended = 0; + int resume = 0; + int i; erts_de_rlock(dep); cid = dep->cid; if (dep->state == ERTS_DE_STATE_EXITING @@ -2022,14 +2416,38 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) || dep->connection_id != dsdp->connection_id) { /* Not the same connection as when we started; drop message... */ erts_de_runlock(dep); - free_dist_obuf(ctx->obuf); + for (i = 0; i < ctx->fragments; i++) + free_dist_obuf(&ctx->obuf[i]); + ctx->fragments = 0; } else { - Sint qsize; + Sint qsize = erts_atomic_read_nob(&dep->qsize); erts_aint32_t qflgs; ErtsProcList *plp = NULL; Eterm notify_proc = NIL; - Sint obsz = size_obuf(ctx->obuf); + Sint obsz; + int fragments; + + /* Calculate how many fragments to send. This depends on + the available space in the distr queue and the amount + of remaining reductions. */ + for (fragments = 0, obsz = 0; + fragments < ctx->fragments && + ((ctx->reds > 0 && (qsize + obsz) < erts_dist_buf_busy_limit) || + ctx->force_encode || ctx->force_busy); + fragments++) { +#ifdef DEBUG + int reds = 100; +#else + int reds = 10; +#endif + if (!ctx->force_encode && !ctx->force_busy) + ctx->reds -= reds; + obsz += size_obuf(&ctx->obuf[fragments]); + } + + ASSERT(fragments == ctx->fragments || + (!ctx->force_encode && !ctx->force_busy)); erts_mtx_lock(&dep->qlock); qsize = erts_atomic_add_read_nob(&dep->qsize, (erts_aint_t) obsz); @@ -2059,12 +2477,25 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) erts_mtx_lock(&dep->qlock); } - /* Enqueue obuf on dist entry */ - if (dep->out_queue.last) - dep->out_queue.last->next = ctx->obuf; - else - dep->out_queue.first = ctx->obuf; - dep->out_queue.last = ctx->obuf; + if (fragments > 1) { + if (!ctx->obuf->hdrp) { + ASSERT(get_int64(ctx->obuf->extp + 10) == ctx->fragments); + } else { + ASSERT(get_int64(ctx->obuf->hdrp + 10) == ctx->fragments); + } + } + + if (fragments) { + ctx->obuf[fragments-1].next = NULL; + if (dep->out_queue.last) + dep->out_queue.last->next = ctx->obuf; + else + dep->out_queue.first = ctx->obuf; + dep->out_queue.last = &ctx->obuf[fragments-1]; + + ctx->fragments -= fragments; + ctx->obuf = &ctx->obuf[fragments]; + } if (!ctx->force_busy) { qflgs = erts_atomic32_read_nob(&dep->qflgs); @@ -2113,6 +2544,13 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) * erroneously scheduled when it shouldn't be. */ } + /* More fragments left to be sent, yield and re-schedule */ + if (ctx->fragments) { + retval = ERTS_DSIG_SEND_CONTINUE; + if (!resume && erts_system_monitor_flags.busy_dist_port) + monitor_generic(ctx->c_p, am_busy_dist_port, cid); + goto done; + } } ctx->obuf = NULL; @@ -2197,9 +2635,9 @@ static Uint dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) { int fpe_was_unmasked; - ErlDrvSizeT size; - SysIOVec iov[2]; - ErlDrvBinary* bv[2]; + ErlDrvSizeT size = 0; + SysIOVec iov[3]; + ErlDrvBinary* bv[3]; ErlIOVec eiov; ERTS_CHK_NO_PROC_LOCKS; @@ -2214,12 +2652,31 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) eiov.vsize = 1; } else { - size = obuf->ext_endp - obuf->extp; + int i = 1; eiov.vsize = 2; - iov[1].iov_base = obuf->extp; - iov[1].iov_len = size; - bv[1] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf)); + if (obuf->hdrp) { + eiov.vsize = 3; + iov[i].iov_base = obuf->hdrp; + iov[i].iov_len = obuf->hdr_endp - obuf->hdrp; + size += iov[i].iov_len; + bv[i] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf)); +#ifdef ERTS_RAW_DIST_MSG_DBG + erts_fprintf(dbg_file, "SEND: "); + bw(iov[i].iov_base, iov[i].iov_len); +#endif + i++; + + } + + iov[i].iov_base = obuf->extp; + iov[i].iov_len = obuf->ext_endp - obuf->extp; +#ifdef ERTS_RAW_DIST_MSG_DBG + erts_fprintf(dbg_file, "SEND: "); + bw(iov[i].iov_base, iov[i].iov_len); +#endif + size += iov[i].iov_len; + bv[i] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf)); } eiov.size = size; @@ -2326,6 +2783,23 @@ erts_dist_command(Port *prt, int initial_reds) dep->finalized_out_queue.first = NULL; dep->finalized_out_queue.last = NULL; +#ifdef DEBUG + { + Uint sz = 0; + ErtsDistOutputBuf *curr = oq.first; + while (curr) { + sz += size_obuf(curr); + curr = curr->next; + } + curr = foq.first; + while (curr) { + sz += size_obuf(curr); + curr = curr->next; + } + ASSERT(sz <= erts_atomic_read_nob(&dep->qsize)); + } +#endif + sched_flags = erts_atomic32_read_nob(&prt->sched.flags); if (reds < 0) @@ -2339,10 +2813,6 @@ erts_dist_command(Port *prt, int initial_reds) size = (*send)(prt, foq.first); erts_atomic64_inc_nob(&dep->out); esdp->io.out += (Uint64) size; -#ifdef ERTS_RAW_DIST_MSG_DBG - erts_fprintf(stderr, ">> "); - bw(foq.first->extp, size); -#endif reds -= ERTS_PORT_REDS_DIST_CMD_DATA(size); fob = foq.first; obufsize += size_obuf(fob); @@ -2411,15 +2881,11 @@ erts_dist_command(Port *prt, int initial_reds) preempt = 1; break; } - ASSERT(&oq.first->data[0] <= oq.first->extp - && oq.first->extp <= oq.first->ext_endp); + ASSERT(oq.first->bin->orig_bytes <= (char*)oq.first->extp + && oq.first->extp <= oq.first->ext_endp); size = (*send)(prt, oq.first); erts_atomic64_inc_nob(&dep->out); esdp->io.out += (Uint64) size; -#ifdef ERTS_RAW_DIST_MSG_DBG - erts_fprintf(stderr, ">> "); - bw(oq.first->extp, size); -#endif reds -= ERTS_PORT_REDS_DIST_CMD_DATA(size); fob = oq.first; obufsize += size_obuf(fob); @@ -2556,100 +3022,6 @@ erts_dist_command(Port *prt, int initial_reds) goto done; } -#if 0 - -int -dist_data_finalize(Process *c_p, int reds_limit) -{ - int reds = 5; - DistEntry *dep = ; - ErtsDistOutputQueue oq, foq; - ErtsDistOutputBuf *ob; - int preempt; - - - erts_mtx_lock(&dep->qlock); - flags = dep->flags; - oq.first = dep->out_queue.first; - oq.last = dep->out_queue.last; - dep->out_queue.first = NULL; - dep->out_queue.last = NULL; - erts_mtx_unlock(&dep->qlock); - - if (!oq.first) { - ASSERT(!oq.last); - oq.first = dep->tmp_out_queue.first; - oq.last = dep->tmp_out_queue.last; - } - else { - ErtsDistOutputBuf *f, *l; - ASSERT(oq.last); - if (dep->tmp_out_queue.last) { - dep->tmp_out_queue.last->next = oq.first; - oq.first = dep->tmp_out_queue.first; - } - } - - if (!oq.first) { - /* Nothing to do... */ - ASSERT(!oq.last); - return reds; - } - - foq.first = dep->finalized_out_queue.first; - foq.last = dep->finalized_out_queue.last; - - preempt = 0; - ob = oq.first; - ASSERT(ob); - - do { - ob->extp = erts_encode_ext_dist_header_finalize(ob->extp, - dep->cache, - flags); - if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) - *--ob->extp = PASS_THROUGH; /* Old node; 'pass through' - needed */ - ASSERT(&ob->data[0] <= ob->extp && ob->extp < ob->ext_endp); - reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE; - preempt = reds > reds_limit; - if (preempt) - break; - ob = ob->next; - } while (ob); - /* - * At least one buffer was finalized; if we got preempted, - * ob points to the last buffer that we finalized. - */ - if (foq.last) - foq.last->next = oq.first; - else - foq.first = oq.first; - if (!preempt) { - /* All buffers finalized */ - foq.last = oq.last; - oq.first = oq.last = NULL; - } - else { - /* Not all buffers finalized; split oq. */ - foq.last = ob; - oq.first = ob->next; - if (oq.first) - ob->next = NULL; - else - oq.last = NULL; - } - - dep->finalized_out_queue.first = foq.first; - dep->finalized_out_queue.last = foq.last; - dep->tmp_out_queue.first = oq.first; - dep->tmp_out_queue.last = oq.last; - - return reds; -} - -#endif - BIF_RETTYPE dist_ctrl_get_data_notification_1(BIF_ALIST_1) { @@ -2998,6 +3370,10 @@ static void kill_connection(DistEntry *dep) void erts_kill_dist_connection(DistEntry *dep, Uint32 conn_id) { +#ifdef ERTS_DIST_MSG_DBG + erts_fprintf(dbg_file, "INTR: kill dist conn to %T:%u\n", + dep->sysname, conn_id); +#endif erts_de_rwlock(dep); if (conn_id == dep->connection_id && dep->state == ERTS_DE_STATE_CONNECTED) { @@ -3659,8 +4035,9 @@ Sint erts_abort_connection_rwunlock(DistEntry* dep) erts_set_dist_entry_not_connected(dep); erts_de_rwunlock(dep); - schedule_con_monitor_link_cleanup(mld, THE_NON_VALUE, - THE_NON_VALUE, THE_NON_VALUE); + schedule_con_monitor_link_seq_cleanup( + mld, NULL, THE_NON_VALUE, + THE_NON_VALUE, THE_NON_VALUE); if (resume_procs) { int resumed = erts_resume_processes(resume_procs); diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 81a09bc69c..034b75df38 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -48,6 +48,7 @@ #define DFLAG_BIG_SEQTRACE_LABELS 0x100000 #define DFLAG_NO_MAGIC 0x200000 /* internal for pending connection */ #define DFLAG_EXIT_PAYLOAD 0x400000 +#define DFLAG_FRAGMENTS 0x800000 /* Mandatory flags for distribution */ #define DFLAG_DIST_MANDATORY (DFLAG_EXTENDED_REFERENCES \ @@ -77,7 +78,8 @@ | DFLAG_BIG_CREATION \ | DFLAG_SEND_SENDER \ | DFLAG_BIG_SEQTRACE_LABELS \ - | DFLAG_EXIT_PAYLOAD) + | DFLAG_EXIT_PAYLOAD \ + | DFLAG_FRAGMENTS) /* Flags addable by local distr implementations */ #define DFLAG_DIST_ADDABLE DFLAG_DIST_DEFAULT @@ -101,7 +103,7 @@ | DFLAG_BIG_CREATION) /* opcodes used in distribution messages */ -enum { +enum dop { DOP_LINK = 1, DOP_SEND = 2, DOP_EXIT = 3, @@ -150,6 +152,16 @@ typedef struct { Uint32 flags; } ErtsDSigData; +/* Must be larger or equal to 16 */ +#ifdef DEBUG +#define ERTS_DIST_FRAGMENT_SIZE 16 +#else +/* This should be made configurable */ +#define ERTS_DIST_FRAGMENT_SIZE (64 * 1024) +#endif + +#define ERTS_DIST_FRAGMENT_HEADER_SIZE (1 + 1 + 8 + 8) /* magic, header, seq id, frag id*/ + #define ERTS_DE_BUSY_LIMIT (1024*1024) extern int erts_dist_buf_busy_limit; extern int erts_is_alive; @@ -347,7 +359,8 @@ enum erts_dsig_send_phase { ERTS_DSIG_SEND_PHASE_MSG_SIZE, ERTS_DSIG_SEND_PHASE_ALLOC, ERTS_DSIG_SEND_PHASE_MSG_ENCODE, - ERTS_DSIG_SEND_PHASE_FIN + ERTS_DSIG_SEND_PHASE_FIN, + ERTS_DSIG_SEND_PHASE_SEND }; struct erts_dsig_send_context { @@ -356,12 +369,14 @@ struct erts_dsig_send_context { Eterm ctl; Eterm msg; + Eterm from; int force_busy; int force_encode; Uint32 max_finalize_prepend; Uint data_size, dhdr_ext_size; ErtsAtomCacheMap *acmp; ErtsDistOutputBuf *obuf; + Uint fragments; Uint32 flags; Process *c_p; union { @@ -383,6 +398,7 @@ typedef struct { Eterm return_term; }ErtsSendContext; +typedef struct dist_sequences DistSeqNode; /* * erts_dsig_send_* return values. @@ -398,11 +414,11 @@ extern int erts_dsig_send_exit_tt(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); extern int erts_dsig_send_unlink(ErtsDSigData *, Eterm, Eterm); extern int erts_dsig_send_reg_msg(Eterm, Eterm, ErtsSendContext*); extern int erts_dsig_send_group_leader(ErtsDSigData *, Eterm, Eterm); -extern int erts_dsig_send_exit(ErtsDSigData *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); extern int erts_dsig_send_exit2(ErtsDSigData *, Eterm, Eterm, Eterm); extern int erts_dsig_send_demonitor(ErtsDSigData *, Eterm, Eterm, Eterm, int); extern int erts_dsig_send_monitor(ErtsDSigData *, Eterm, Eterm, Eterm); -extern int erts_dsig_send_m_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); +extern int erts_dsig_send_m_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm, Eterm); extern int erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx); extern int erts_dsend_context_dtor(Binary*); @@ -416,4 +432,8 @@ extern Uint erts_dist_cache_size(void); extern Sint erts_abort_connection_rwunlock(DistEntry *dep); +extern void erts_dist_seq_tree_foreach( + DistEntry *dep, + int (*func)(ErtsDistExternal *, void*, Sint), void *args); + #endif diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types index 31f19d1b88..490a033b8a 100644 --- a/erts/emulator/beam/erl_alloc.types +++ b/erts/emulator/beam/erl_alloc.types @@ -276,6 +276,7 @@ type PF3_ARGS SHORT_LIVED PROCESSES process_flag_3_arguments type SETUP_CONN_ARG SHORT_LIVED PROCESSES setup_connection_argument type LIST_TRAP SHORT_LIVED PROCESSES list_bif_trap_state type CONT_EXIT_TRAP SHORT_LIVED PROCESSES continue_exit_trap_state +type SEQ_YIELD_STATE SHORT_LIVED SYSTEM dist_seq_yield_state type ENVIRONMENT SYSTEM SYSTEM environment diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c index cd7bce8bf4..e12a51a0ae 100644 --- a/erts/emulator/beam/erl_message.c +++ b/erts/emulator/beam/erl_message.c @@ -219,6 +219,10 @@ erts_cleanup_message(ErtsMessage *mp) if (ERTS_SIG_IS_MSG(mp) && mp->data.attached != ERTS_MSG_COMBINED_HFRAG) { bp = mp->data.heap_frag; } else { + /* All non msg signals are combined HFRAG messages, + but we overwrite the mp->data field with the + nm_signal queue ptr so have to fix that here + before freeing it. */ mp->data.attached = ERTS_MSG_COMBINED_HFRAG; bp = mp->hfrag.next; erts_cleanup_offheap(&mp->hfrag.off_heap); @@ -234,7 +238,7 @@ erts_cleanup_messages(ErtsMessage *msgp) ErtsMessage *mp = msgp; while (mp) { ErtsMessage *fmp; - erts_cleanup_message(mp); + erts_cleanup_message(mp); fmp = mp; mp = mp->next; erts_free_message(fmp); @@ -266,6 +270,7 @@ void erts_queue_dist_message(Process *rcvr, ErtsProcLocks rcvr_locks, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm token, Eterm from) { @@ -274,8 +279,26 @@ erts_queue_dist_message(Process *rcvr, ERTS_LC_ASSERT(rcvr_locks == erts_proc_lc_my_proc_locks(rcvr)); - mp = erts_alloc_message(0, NULL); - mp->data.dist_ext = dist_ext; + if (hfrag) { + /* Fragmented message, allocate a message reference */ + mp = erts_alloc_message(0, NULL); + mp->data.heap_frag = hfrag; + } else { + /* Un-fragmented message, allocate space for + token and dist_ext in message. */ + Uint dist_ext_sz = erts_dist_ext_size(dist_ext) / sizeof(Eterm); + Uint token_sz = size_object(token); + Uint sz = token_sz + dist_ext_sz; + Eterm *hp; + + mp = erts_alloc_message(sz, &hp); + mp->data.heap_frag = &mp->hfrag; + mp->hfrag.used_size = token_sz; + + erts_make_dist_ext_copy(dist_ext, erts_get_dist_ext(mp->data.heap_frag)); + + token = copy_struct(token, token_sz, &hp, &mp->data.heap_frag->off_heap); + } ERL_MESSAGE_FROM(mp) = dist_ext->dep->sysname; ERL_MESSAGE_TERM(mp) = THE_NON_VALUE; @@ -499,25 +522,27 @@ Uint erts_msg_attached_data_size_aux(ErtsMessage *msg) { Sint sz; - ASSERT(is_non_value(ERL_MESSAGE_TERM(msg))); - ASSERT(msg->data.dist_ext); - ASSERT(msg->data.dist_ext->heap_size < 0); - - sz = erts_decode_dist_ext_size(msg->data.dist_ext); - if (sz < 0) { - /* Bad external - * We leave the message intact in this case as it's not worth the trouble - * to make all callers remove it from queue. It will be detected again - * and removed from message queue later anyway. - */ - return 0; - } + ErtsDistExternal *edep = erts_get_dist_ext(msg->data.heap_frag); + ASSERT(ERTS_SIG_IS_EXTERNAL_MSG(msg)); + + if (edep->heap_size < 0) { - msg->data.dist_ext->heap_size = sz; - if (is_not_nil(msg->m[1])) { - ErlHeapFragment *heap_frag; - heap_frag = erts_dist_ext_trailer(msg->data.dist_ext); - sz += heap_frag->used_size; + sz = erts_decode_dist_ext_size(edep, 1); + if (sz < 0) { + /* Bad external + * We leave the message intact in this case as it's not worth the trouble + * to make all callers remove it from queue. It will be detected again + * and removed from message queue later anyway. + */ + return 0; + } + + edep->heap_size = sz; + } else { + sz = edep->heap_size; + } + if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) { + sz += msg->data.heap_frag->used_size; } return sz; } @@ -1165,7 +1190,7 @@ erts_factory_message_create(ErtsHeapFactory* factory, int on_heap; erts_aint32_t state; - state = proc ? erts_atomic32_read_nob(&proc->state) : 0; + state = proc ? erts_atomic32_read_nob(&proc->state) : ERTS_PSFLG_OFF_HEAP_MSGQ; if (state & ERTS_PSFLG_OFF_HEAP_MSGQ) { msgp = erts_alloc_message(sz, &hp); @@ -1398,8 +1423,8 @@ void erts_factory_close(ErtsHeapFactory* factory) else factory->message->data.heap_frag = factory->heap_frags; - /* Fall through */ - case FACTORY_HEAP_FRAGS: + /* Fall through */ + case FACTORY_HEAP_FRAGS: bp = factory->heap_frags; } diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h index 58294648b4..4c2674394e 100644 --- a/erts/emulator/beam/erl_message.h +++ b/erts/emulator/beam/erl_message.h @@ -138,7 +138,7 @@ typedef struct erl_heap_fragment ErlHeapFragment; struct erl_heap_fragment { ErlHeapFragment* next; /* Next heap fragment */ ErlOffHeap off_heap; /* Offset heap data. */ - Uint alloc_size; /* Size in (half)words of mem */ + Uint alloc_size; /* Size in words of mem */ Uint used_size; /* With terms to be moved to heap by GC */ Eterm mem[1]; /* Data */ }; @@ -167,7 +167,6 @@ struct erl_heap_fragment { #define ERL_MESSAGE_REF_FIELDS__ \ ErtsMessage *next; /* Next message */ \ union { \ - ErtsDistExternal *dist_ext; \ ErlHeapFragment *heap_frag; \ void *attached; \ } data; \ @@ -438,7 +437,8 @@ ErlHeapFragment* new_message_buffer(Uint); ErlHeapFragment* erts_resize_message_buffer(ErlHeapFragment *, Uint, Eterm *, Uint); void free_message_buffer(ErlHeapFragment *); -void erts_queue_dist_message(Process*, ErtsProcLocks, ErtsDistExternal *, Eterm, Eterm); +void erts_queue_dist_message(Process*, ErtsProcLocks, ErtsDistExternal *, + ErlHeapFragment *, Eterm, Eterm); void erts_queue_message(Process*, ErtsProcLocks,ErtsMessage*, Eterm, Eterm); void erts_queue_proc_message(Process* from,Process* to, ErtsProcLocks,ErtsMessage*, Eterm); void erts_queue_proc_messages(Process* from, Process* to, ErtsProcLocks, @@ -583,22 +583,11 @@ ERTS_GLB_INLINE Uint erts_used_frag_sz(const ErlHeapFragment* bp) ERTS_GLB_INLINE Uint erts_msg_attached_data_size(ErtsMessage *msg) { ASSERT(msg->data.attached); - if (is_value(ERL_MESSAGE_TERM(msg))) { - ErlHeapFragment *bp; - bp = erts_message_to_heap_frag(msg); - return erts_used_frag_sz(bp); - } - else if (msg->data.dist_ext->heap_size < 0) - return erts_msg_attached_data_size_aux(msg); - else { - Uint sz = msg->data.dist_ext->heap_size; - if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) { - ErlHeapFragment *heap_frag; - heap_frag = erts_dist_ext_trailer(msg->data.dist_ext); - sz += heap_frag->used_size; - } - return sz; - } + + if (ERTS_SIG_IS_INTERNAL_MSG(msg)) + return erts_used_frag_sz(erts_message_to_heap_frag(msg)); + + return erts_msg_attached_data_size_aux(msg); } #endif diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index b7dbe625a2..ede9f092e9 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -201,6 +201,7 @@ dist_table_alloc(void *dep_tmpl) dep->send = NULL; dep->cache = NULL; dep->transcode_ctx = NULL; + dep->sequences = NULL; /* Link in */ @@ -1177,6 +1178,7 @@ static Eterm AM_system; static Eterm AM_timer; static Eterm AM_delayed_delete_timer; static Eterm AM_thread_progress_delete_timer; +static Eterm AM_sequence; static Eterm AM_signal; static void setup_reference_table(void); @@ -1218,6 +1220,7 @@ typedef struct dist_referrer_ { int ctrl_ref; int system_ref; int signal_ref; + int sequence_ref; Eterm id; Uint creation; Uint id_heap[ID_HEAP_SIZE]; @@ -1272,6 +1275,7 @@ erts_get_node_and_dist_references(struct process *proc) INIT_AM(delayed_delete_timer); INIT_AM(thread_progress_delete_timer); INIT_AM(signal); + INIT_AM(sequence); references_atoms_need_init = 0; } @@ -1309,8 +1313,9 @@ erts_get_node_and_dist_references(struct process *proc) #define TIMER_REF 8 #define SYSTEM_REF 9 #define SIGNAL_REF 10 +#define SEQUENCE_REF 11 -#define INC_TAB_SZ 10 +#define INC_TAB_SZ 11 static void insert_dist_referrer(ReferredDist *referred_dist, @@ -1344,6 +1349,7 @@ insert_dist_referrer(ReferredDist *referred_dist, drp->ctrl_ref = 0; drp->system_ref = 0; drp->signal_ref = 0; + drp->sequence_ref = 0; } switch (type) { @@ -1353,6 +1359,7 @@ insert_dist_referrer(ReferredDist *referred_dist, case ETS_REF: drp->ets_ref++; break; case SYSTEM_REF: drp->system_ref++; break; case SIGNAL_REF: drp->signal_ref++; break; + case SEQUENCE_REF: drp->sequence_ref++; break; default: ASSERT(0); } } @@ -1583,6 +1590,20 @@ insert_dist_monitors(DistEntry *dep) } } + +static int +insert_sequence(ErtsDistExternal *edep, void *arg, Sint reds) +{ + insert_dist_entry(edep->dep, SEQUENCE_REF, *(Eterm*)arg, 0); + return 1; +} + +static void +insert_dist_sequences(DistEntry *dep) +{ + erts_dist_seq_tree_foreach(dep, insert_sequence, (void *) &dep->sysname); +} + static void clear_visited_p_monitors(ErtsPTabElementCommon *p) { @@ -1774,11 +1795,9 @@ insert_message(ErtsMessage *msg, int type, Process *proc) else if (ERTS_SIG_IS_INTERNAL_MSG(msg)) heap_frag = msg->data.heap_frag; else { - if (msg->data.dist_ext->dep) - insert_dist_entry(msg->data.dist_ext->dep, - type, proc->common.id, 0); - if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) - heap_frag = erts_dist_ext_trailer(msg->data.dist_ext); + heap_frag = msg->data.heap_frag; + insert_dist_entry(erts_get_dist_ext(heap_frag)->dep, + type, proc->common.id, 0); } } while (heap_frag) { @@ -1818,6 +1837,13 @@ insert_sig_link(ErtsLink *lnk, void *arg, Sint reds) return 1; } +static void +insert_sig_ext(ErtsDistExternal *edep, void *arg) +{ + Process *proc = arg; + insert_dist_entry(edep->dep, SIGNAL_REF, proc->common.id, 0); +} + static void setup_reference_table(void) { @@ -1898,6 +1924,7 @@ setup_reference_table(void) insert_sig_offheap, insert_sig_monitor, insert_sig_link, + insert_sig_ext, (void *) proc); /* Insert links */ @@ -1989,16 +2016,19 @@ setup_reference_table(void) for(dep = erts_visible_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); + insert_dist_sequences(dep); } for(dep = erts_hidden_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); + insert_dist_sequences(dep); } for(dep = erts_pending_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); + insert_dist_sequences(dep); } /* Not connected dist entries should not have any links, @@ -2006,6 +2036,7 @@ setup_reference_table(void) for(dep = erts_not_connected_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); + insert_dist_sequences(dep); } /* Insert all ets tables */ @@ -2179,6 +2210,10 @@ reference_table_term(Uint **hpp, ErlOffHeap *ohp, Uint *szp) tup = MK_2TUP(AM_system, MK_UINT(drp->system_ref)); drl = MK_CONS(tup, drl); } + if(drp->sequence_ref) { + tup = MK_2TUP(AM_sequence, MK_UINT(drp->sequence_ref)); + drl = MK_CONS(tup, drl); + } if(drp->signal_ref) { tup = MK_2TUP(AM_signal, MK_UINT(drp->signal_ref)); drl = MK_CONS(tup, drl); @@ -2253,6 +2288,12 @@ static void noop_sig_offheap(ErlOffHeap *oh, void *arg) } +static void noop_sig_ext(ErtsDistExternal *ext, void *arg) +{ + +} + + static void delete_reference_table(void) { @@ -2303,6 +2344,7 @@ delete_reference_table(void) noop_sig_offheap, clear_visited_monitor, clear_visited_link, + noop_sig_ext, (void *) proc); } } diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index c44f1f8991..cd5d69a302 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -98,11 +98,22 @@ struct ErtsDistOutputBuf_ { byte *alloc_endp; #endif ErtsDistOutputBuf *next; - Uint hopefull_flags; + Binary *bin; + /* Pointers to the distribution header, + if NULL the distr header is in the extp */ + byte *hdrp; + byte *hdr_endp; + /* Pointers to the ctl + payload */ byte *extp; byte *ext_endp; + /* Start of payload and hopefull_flags, used by transcode */ + Uint hopefull_flags; byte *msg_start; - byte data[1]; + /* start of the ext buffer, this is not always the same as extp + as the atom cache handling can use less then the allotted buffer. + This value is needed to calculate the size of this output buffer.*/ + byte *ext_start; + }; typedef struct { @@ -161,6 +172,8 @@ struct dist_entry_ { ErtsThrPrgrLaterOp later_op; struct transcode_context* transcode_ctx; + + struct dist_sequences *sequences; /* Ongoing distribution sequences */ }; typedef struct erl_node_ { diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c index 1bd219b6d7..8113abebde 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.c +++ b/erts/emulator/beam/erl_proc_sig_queue.c @@ -36,6 +36,7 @@ #include "erl_port_task.h" #include "erl_trace.h" #include "beam_bp.h" +#include "erl_binary.h" #include "big.h" #include "erl_gc.h" #include "bif.h" @@ -80,7 +81,10 @@ #define ERTS_SIG_Q_TYPE_ADJUST_TRACE_INFO \ ERTS_SIG_Q_TYPE_MAX -#define ERTS_SIG_IS_EXTERNAL(sig) is_non_value(get_exit_signal_data(sig)->reason) +#define ERTS_SIG_IS_GEN_EXIT(sig) \ + (ERTS_PROC_SIG_TYPE(((ErtsSignal *) sig)->common.tag) == ERTS_SIG_Q_TYPE_GEN_EXIT) +#define ERTS_SIG_IS_GEN_EXIT_EXTERNAL(sig) \ + (ASSERT(ERTS_SIG_IS_GEN_EXIT(sig)),is_non_value(get_exit_signal_data(sig)->reason)) Process *ERTS_WRITE_UNLIKELY(erts_dirty_process_signal_handler); Process *ERTS_WRITE_UNLIKELY(erts_dirty_process_signal_handler_high); @@ -114,8 +118,6 @@ typedef struct { Eterm message; Eterm from; Eterm reason; - struct erl_dist_external *dist_ext; - ErlHeapFragment *heap_frag; union { Eterm ref; int normal_kills; @@ -945,13 +947,15 @@ erts_proc_sig_get_external(ErtsMessage *msgp) { if (ERTS_SIG_IS_EXTERNAL_MSG(msgp)) { return erts_get_dist_ext(msgp->data.heap_frag); - } else if (ERTS_SIG_IS_NON_MSG(msgp) && ERTS_SIG_IS_EXTERNAL(msgp)) { + } else if (ERTS_SIG_IS_NON_MSG(msgp) && + ERTS_SIG_IS_GEN_EXIT(msgp) && + ERTS_SIG_IS_GEN_EXIT_EXTERNAL(msgp)) { ErtsDistExternal *edep; ErtsExitSignalData *xsigd = get_exit_signal_data(msgp); ASSERT(ERTS_PROC_SIG_TYPE(((ErtsSignal *) msgp)->common.tag) == ERTS_SIG_Q_TYPE_GEN_EXIT); ASSERT(is_non_value(xsigd->reason)); if (msgp->hfrag.next == NULL) - edep = (ErtsDistExternal*)((void*)xsigd) + sizeof(ErtsExitSignalData); + edep = (ErtsDistExternal*)(xsigd + 1); else edep = erts_get_dist_ext(msgp->hfrag.next); return edep; @@ -965,6 +969,7 @@ static void send_gen_exit_signal(Process *c_p, Eterm from_tag, Eterm from, Eterm to, Sint16 op, Eterm reason, ErtsDistExternal *dist_ext, + ErlHeapFragment *dist_ext_hfrag, Eterm ref, Eterm token, int normal_kills) { ErtsExitSignalData *xsigd; @@ -972,7 +977,7 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, ErtsMessage *mp; ErlHeapFragment *hfrag; ErlOffHeap *ohp; - Uint hsz, from_sz, reason_sz, ref_sz, token_sz; + Uint hsz, from_sz, reason_sz, ref_sz, token_sz, dist_ext_sz; int seq_trace; #ifdef USE_VM_PROBES Eterm s_utag, utag; @@ -984,7 +989,7 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, ASSERT(is_immed(from_tag)); - hsz = sizeof(ErtsExitSignalData)/sizeof(Uint); + hsz = sizeof(ErtsExitSignalData)/sizeof(Eterm); seq_trace = c_p && have_seqtrace(token); if (seq_trace) @@ -1012,6 +1017,8 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, ref_sz = size_object(ref); hsz += ref_sz; + /* The reason was part of the control message, + just use copy it into the xsigd */ if (is_value(reason)) { reason_sz = size_object(reason); hsz += reason_sz; @@ -1032,6 +1039,11 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, ERTS_INTERNAL_ERROR("Invalid exit signal op"); break; } + } else if (dist_ext != NULL && dist_ext_hfrag == NULL) { + /* The message was not fragmented so we need to create space + for a single dist_ext element */ + dist_ext_sz = erts_dist_ext_size(dist_ext) / sizeof(Eterm); + hsz += dist_ext_sz; } /* @@ -1087,13 +1099,12 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, hfrag->used_size = hp - start_hp; - xsigd = (ErtsExitSignalData *) (char *) hp; + xsigd = (ErtsExitSignalData *) hp; xsigd->message = s_message; xsigd->from = s_from; xsigd->reason = s_reason; - xsigd->dist_ext = dist_ext; - xsigd->heap_frag = NULL; + hfrag->next = dist_ext_hfrag; if (is_nil(s_ref)) xsigd->u.normal_kills = normal_kills; @@ -1102,6 +1113,15 @@ send_gen_exit_signal(Process *c_p, Eterm from_tag, xsigd->u.ref = s_ref; } + hp += sizeof(ErtsExitSignalData)/sizeof(Eterm); + + if (dist_ext != NULL && dist_ext_hfrag == NULL && is_non_value(reason)) { + erts_make_dist_ext_copy(dist_ext, (ErtsDistExternal *) hp); + hp += dist_ext_sz; + } + + ASSERT(hp == mp->hfrag.mem + mp->hfrag.alloc_size); + if (seq_trace) do_seq_trace_output(to, s_token, s_message); @@ -1234,17 +1254,18 @@ erts_proc_sig_send_exit(Process *c_p, Eterm from, Eterm to, from_tag = dep->sysname; } send_gen_exit_signal(c_p, from_tag, from, to, ERTS_SIG_Q_OP_EXIT, - reason, NULL, NIL, token, normal_kills); + reason, NULL, NULL, NIL, token, normal_kills); } void erts_proc_sig_send_dist_exit(DistEntry *dep, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason, Eterm token) { send_gen_exit_signal(NULL, dep->sysname, from, to, ERTS_SIG_Q_OP_EXIT, - reason, dist_ext, NIL, token, 0); + reason, dist_ext, hfrag, NIL, token, 0); } @@ -1259,7 +1280,7 @@ erts_proc_sig_send_link_exit(Process *c_p, Eterm from, ErtsLink *lnk, if (is_not_immed(reason) || is_not_nil(token)) { ASSERT(is_internal_pid(from) || is_internal_port(from)); send_gen_exit_signal(c_p, from, from, to, ERTS_SIG_Q_OP_EXIT_LINKED, - reason, NULL, NIL, token, 0); + reason, NULL, NULL, NIL, token, 0); } else { /* Pass signal using old link structure... */ @@ -1315,10 +1336,11 @@ void erts_proc_sig_send_dist_link_exit(DistEntry *dep, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason, Eterm token) { send_gen_exit_signal(NULL, dep->sysname, from, to, ERTS_SIG_Q_OP_EXIT_LINKED, - reason, dist_ext, NIL, token, 0); + reason, dist_ext, hfrag, NIL, token, 0); } @@ -1342,6 +1364,7 @@ void erts_proc_sig_send_dist_monitor_down(DistEntry *dep, Eterm ref, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason) { Eterm monitored, heap[3]; @@ -1351,7 +1374,7 @@ erts_proc_sig_send_dist_monitor_down(DistEntry *dep, Eterm ref, monitored = from; send_gen_exit_signal(NULL, dep->sysname, monitored, to, ERTS_SIG_Q_OP_MONITOR_DOWN, - reason, dist_ext, ref, NIL, 0); + reason, dist_ext, hfrag, ref, NIL, 0); } void @@ -1422,7 +1445,7 @@ erts_proc_sig_send_monitor_down(ErtsMonitor *mon, Eterm reason) } send_gen_exit_signal(NULL, from_tag, monitored, to, ERTS_SIG_Q_OP_MONITOR_DOWN, - reason, NULL, mdp->ref, NIL, 0); + reason, NULL, NULL, mdp->ref, NIL, 0); } erts_monitor_release(mon); } @@ -2105,9 +2128,9 @@ handle_exit_signal(Process *c_p, ErtsSigRecvTracing *tracing, } /* This GEN_EXIT was received from another node, decode the exit reason */ - if (ERTS_SIG_IS_EXTERNAL(sig)) + if (ERTS_SIG_IS_GEN_EXIT_EXTERNAL(sig)) erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 1); - + reason = xsigd->reason; if (is_non_value(reason)) { @@ -2115,17 +2138,14 @@ handle_exit_signal(Process *c_p, ErtsSigRecvTracing *tracing, ignore = !0; destroy = !0; } - + if (!ignore) { if ((op != ERTS_SIG_Q_OP_EXIT || reason != am_kill) && (c_p->flags & F_TRAP_EXIT)) { convert_prepared_sig_to_msg(c_p, sig, xsigd->message, next_nm_sig); - ASSERT(sig->hfrag.next == NULL); - sig->hfrag.next = xsigd->heap_frag; conv_msg = sig; - } else if (reason == am_normal && !xsigd->u.normal_kills) { /* Ignore it... */ @@ -2991,50 +3011,29 @@ erts_proc_sig_decode_dist(Process *proc, ErtsProcLocks proc_locks, ErtsMessage *msgp, int force_off_heap) { ErtsHeapFactory factory; + ErlHeapFragment *hfrag; Eterm msg; - ErlHeapFragment *bp; Sint need; - int decode_in_heap_frag; - ErtsDistExternal *dist_ext; + ErtsDistExternal *edep; ErtsExitSignalData *xsigd = NULL; - decode_in_heap_frag = (force_off_heap - || !(proc_locks & ERTS_PROC_LOCK_MAIN) - || (proc->flags & F_OFF_HEAP_MSGQ)); - - if (ERTS_SIG_IS_EXTERNAL_MSG(msgp)) - dist_ext = msgp->data.dist_ext; - else { + edep = erts_proc_sig_get_external(msgp); + if (!ERTS_SIG_IS_EXTERNAL_MSG(msgp)) xsigd = get_exit_signal_data(msgp); - ASSERT(ERTS_PROC_SIG_TYPE(((ErtsSignal *) msgp)->common.tag) == ERTS_SIG_Q_TYPE_GEN_EXIT); - ASSERT(is_non_value(xsigd->reason)); - dist_ext = xsigd->dist_ext; - } - if (dist_ext->heap_size >= 0) - need = dist_ext->heap_size; + if (edep->heap_size >= 0) + need = edep->heap_size; else { - need = erts_decode_dist_ext_size(dist_ext); + need = erts_decode_dist_ext_size(edep, 1); if (need < 0) { - /* bad msg; remove it... */ - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - bp = erts_dist_ext_trailer(dist_ext); - erts_cleanup_offheap(&bp->off_heap); - } - erts_free_dist_ext_copy(dist_ext); - dist_ext = NULL; + /* bad signal; remove it... */ return 0; } - dist_ext->heap_size = need; + edep->heap_size = need; } - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - bp = erts_dist_ext_trailer(dist_ext); - need += bp->used_size; - } - - if (xsigd) { + if (ERTS_SIG_IS_NON_MSG(msgp)) { switch (ERTS_PROC_SIG_OP(ERL_MESSAGE_TERM(msgp))) { case ERTS_SIG_Q_OP_EXIT: case ERTS_SIG_Q_OP_EXIT_LINKED: @@ -3051,26 +3050,22 @@ erts_proc_sig_decode_dist(Process *proc, ErtsProcLocks proc_locks, } } - if (decode_in_heap_frag) - erts_factory_heap_frag_init(&factory, new_message_buffer(need)); - else - erts_factory_proc_prealloc_init(&factory, proc, need); - - ASSERT(dist_ext->heap_size >= 0); - if (is_not_immed(ERL_MESSAGE_TOKEN(msgp))) { - ErlHeapFragment *heap_frag; - heap_frag = erts_dist_ext_trailer(dist_ext); - ERL_MESSAGE_TOKEN(msgp) = copy_struct(ERL_MESSAGE_TOKEN(msgp), - heap_frag->used_size, - &factory.hp, - factory.off_heap); - erts_cleanup_offheap(&heap_frag->off_heap); + hfrag = new_message_buffer(need); + erts_factory_heap_frag_init(&factory, hfrag); + + ASSERT(edep->heap_size >= 0); + + msg = erts_decode_dist_ext(&factory, edep, 1); + + if (is_non_value(msg)) { + erts_factory_undo(&factory); + return 0; } - msg = erts_decode_dist_ext(&factory, dist_ext); - if (!xsigd) { + if (ERTS_SIG_IS_MSG(msgp)) { ERL_MESSAGE_TERM(msgp) = msg; - msgp->data.attached = NULL; + if (msgp->data.heap_frag == &msgp->hfrag) + msgp->data.heap_frag = ERTS_MSG_COMBINED_HFRAG; } else { switch (ERTS_PROC_SIG_OP(ERL_MESSAGE_TERM(msgp))) { case ERTS_SIG_Q_OP_EXIT: @@ -3089,22 +3084,21 @@ erts_proc_sig_decode_dist(Process *proc, ErtsProcLocks proc_locks, } xsigd->reason = msg; } - erts_free_dist_ext_copy(dist_ext); - if (is_non_value(msg)) { - erts_factory_undo(&factory); - return 0; - } + erts_free_dist_ext_copy(edep); erts_factory_close(&factory); - ASSERT(!msgp->data.heap_frag || xsigd); + hfrag = factory.heap_frags; + while (hfrag->next) + hfrag = hfrag->next; - if (decode_in_heap_frag) { - if (!xsigd) - msgp->data.heap_frag = factory.heap_frags; - else - xsigd->heap_frag = factory.heap_frags; + if (ERTS_SIG_IS_MSG(msgp) && msgp->data.heap_frag != ERTS_MSG_COMBINED_HFRAG) { + hfrag->next = msgp->data.heap_frag; + msgp->data.heap_frag = factory.heap_frags; + } else { + hfrag->next = msgp->hfrag.next; + msgp->hfrag.next = factory.heap_frags; } return 1; @@ -3274,8 +3268,9 @@ erts_proc_sig_handle_incoming(Process *c_p, erts_aint32_t *statep, xsigd = get_exit_signal_data(sig); /* This GEN_EXIT was received from another node, decode the exit reason */ - if (ERTS_SIG_IS_EXTERNAL(sig)) - erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 1); + if (ERTS_SIG_IS_GEN_EXIT_EXTERNAL(sig)) + if (!erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 1)) + break; /* Decode failed, just remove signal */ omon = erts_monitor_tree_lookup(ERTS_P_MONITORS(c_p), xsigd->u.ref); @@ -4375,11 +4370,13 @@ handle_msg_tracing(Process *c_p, ErtsSigRecvTracing *tracing, return -1; /* Yield... */ } if (ERTS_SIG_IS_EXTERNAL_MSG(sig)) { - cnt++; + cnt += 50; /* Decode is expensive... */ if (!erts_proc_sig_decode_dist(c_p, ERTS_PROC_LOCK_MAIN, sig, 0)) { /* Bad dist message; remove it... */ remove_mq_m_sig(c_p, sig, next_sig, next_nm_sig); + sig->next = NULL; + erts_cleanup_messages(sig); sig = *next_sig; continue; } @@ -4451,18 +4448,12 @@ erts_proc_sig_prep_msgq_for_inspection(Process *c_p, if (ERTS_SIG_IS_EXTERNAL_MSG(mp)) { /* decode it... */ - if (mp->data.attached) - erts_proc_sig_decode_dist(rp, rp_locks, mp, !0); - - msg = ERL_MESSAGE_TERM(mp); - - if (is_non_value(msg)) { + if (!erts_proc_sig_decode_dist(rp, rp_locks, mp, !0)) { ErtsMessage *bad_mp = mp; /* * Bad distribution message; remove * it from the queue... */ - ASSERT(!mp->data.attached); ASSERT(*mpp == bad_mp); @@ -4474,6 +4465,8 @@ erts_proc_sig_prep_msgq_for_inspection(Process *c_p, erts_cleanup_messages(bad_mp); continue; } + + msg = ERL_MESSAGE_TERM(mp); } ASSERT(is_value(msg)); @@ -4632,12 +4625,21 @@ debug_foreach_sig_fake_oh(Eterm term, } +static void +debug_foreach_sig_external(ErtsMessage *msgp, + void (*ext_func)(ErtsDistExternal *, void *), + void *arg) +{ + ext_func(erts_proc_sig_get_external(msgp), arg); +} + void erts_proc_sig_debug_foreach_sig(Process *c_p, void (*msg_func)(ErtsMessage *, void *), void (*oh_func)(ErlOffHeap *, void *), ErtsMonitorFunc mon_func, ErtsLinkFunc lnk_func, + void (*ext_func)(ErtsDistExternal *, void *), void *arg) { ErtsMessage *queue[] = {c_p->sig_qs.first, c_p->sig_qs.cont, c_p->sig_inq.first}; @@ -4646,10 +4648,10 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, for (qix = 0; qix < sizeof(queue)/sizeof(queue[0]); qix++) { ErtsMessage *sig; for (sig = queue[qix]; sig; sig = sig->next) { - - if (ERTS_SIG_IS_MSG(sig)) + + if (ERTS_SIG_IS_MSG(sig)) { msg_func(sig, arg); - else { + } else { Eterm tag; Uint16 type; int op; @@ -4668,7 +4670,10 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, case ERTS_SIG_Q_OP_MONITOR_DOWN: switch (type) { case ERTS_SIG_Q_TYPE_GEN_EXIT: - debug_foreach_sig_heap_frags(&sig->hfrag, oh_func, arg); + if (ERTS_SIG_IS_GEN_EXIT_EXTERNAL(sig)) + debug_foreach_sig_external(sig, ext_func, arg); + else + debug_foreach_sig_heap_frags(&sig->hfrag, oh_func, arg); break; case ERTS_LNK_TYPE_PORT: case ERTS_LNK_TYPE_PROC: diff --git a/erts/emulator/beam/erl_proc_sig_queue.h b/erts/emulator/beam/erl_proc_sig_queue.h index 39cee6f230..2b055e73bc 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.h +++ b/erts/emulator/beam/erl_proc_sig_queue.h @@ -228,6 +228,9 @@ erts_proc_sig_send_exit(Process *c_p, Eterm from, Eterm to, * * @param[in] dist_ext The exit reason in external term format * + * @param[in] hfrag Heap frag with trace token and dist_ext + * iff available, otherwise NULL. + * * @param[in] reason Exit reason. * * @param[in] token Seq trace token. @@ -237,6 +240,7 @@ void erts_proc_sig_send_dist_exit(DistEntry *dep, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason, Eterm token); /** @@ -322,6 +326,9 @@ erts_proc_sig_send_unlink(Process *c_p, ErtsLink *lnk); * * @param[in] dist_ext The exit reason in external term format * + * @param[in] hfrag Heap frag with trace token and dist_ext + * iff available, otherwise NULL. + * * @param[in] reason Exit reason. * * @param[in] token Seq trace token. @@ -331,6 +338,7 @@ void erts_proc_sig_send_dist_link_exit(struct dist_entry_ *dep, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason, Eterm token); /** @@ -426,6 +434,9 @@ erts_proc_sig_send_monitor(ErtsMonitor *mon, Eterm to); * * @param[in] dist_ext The exit reason in external term format * + * @param[in] hfrag Heap frag with trace token and dist_ext + * iff available, otherwise NULL. + * * @param[in] reason Exit reason. * */ @@ -433,6 +444,7 @@ void erts_proc_sig_send_dist_monitor_down(DistEntry *dep, Eterm ref, Eterm from, Eterm to, ErtsDistExternal *dist_ext, + ErlHeapFragment *hfrag, Eterm reason); /** @@ -1035,6 +1047,7 @@ erts_proc_sig_debug_foreach_sig(Process *c_p, void (*oh_func)(ErlOffHeap *, void *), ErtsMonitorFunc mon_func, ErtsLinkFunc lnk_func, + void (*ext_func)(ErtsDistExternal *, void *), void *arg); extern Process *erts_dirty_process_signal_handler; diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 66af9574b8..837b3f4ace 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -12111,6 +12111,7 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) case ERTS_DSIG_PREP_PENDING: if (dist->connection_id == dsd.connection_id) { code = erts_dsig_send_m_exit(&dsd, + c_p->common.id, watcher, watched, mdp->ref, diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c index 46e460582c..a164ed543e 100644 --- a/erts/emulator/beam/erl_process_dump.c +++ b/erts/emulator/beam/erl_process_dump.c @@ -191,11 +191,11 @@ static ERTS_INLINE void dump_msg(fmtfn_t to, void *to_arg, ErtsMessage *mp) { if (ERTS_SIG_IS_MSG((ErtsSignal *) mp)) { - Eterm mesg = ERL_MESSAGE_TERM(mp); - if (is_value(mesg)) - dump_element(to, to_arg, mesg); + Eterm mesg; + if (ERTS_SIG_IS_INTERNAL_MSG(mp)) + dump_element(to, to_arg, ERL_MESSAGE_TERM(mp)); else - dump_dist_ext(to, to_arg, mp->data.dist_ext); + dump_dist_ext(to, to_arg, erts_get_dist_ext(mp->data.heap_frag)); mesg = ERL_MESSAGE_TOKEN(mp); erts_print(to, to_arg, ":"); dump_element(to, to_arg, mesg); @@ -267,6 +267,7 @@ dump_dist_ext(fmtfn_t to, void *to_arg, ErtsDistExternal *edep) else { byte *e; size_t sz; + int i; if (!(edep->flags & ERTS_DIST_EXT_ATOM_TRANS_TAB)) erts_print(to, to_arg, "D0:"); @@ -276,8 +277,8 @@ dump_dist_ext(fmtfn_t to, void *to_arg, ErtsDistExternal *edep) for (i = 0; i < edep->attab.size; i++) dump_element(to, to_arg, edep->attab.atom[i]); } - sz = edep->ext_endp - edep->extp; - e = edep->extp; + sz = edep->data->ext_endp - edep->data->extp; + e = edep->data->extp; if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) { ASSERT(*e != VERSION_MAGIC); sz++; @@ -288,15 +289,19 @@ dump_dist_ext(fmtfn_t to, void *to_arg, ErtsDistExternal *edep) erts_print(to, to_arg, "E%X:", sz); if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) { byte sbuf[3]; - int i = 0; + + i = 0; sbuf[i++] = VERSION_MAGIC; - while (i < sizeof(sbuf) && e < edep->ext_endp) { + while (i < sizeof(sbuf) && e < edep->data->ext_endp) { sbuf[i++] = *e++; } erts_print_base64(to, to_arg, sbuf, i); } - erts_print_base64(to, to_arg, e, edep->ext_endp - e); + erts_print_base64(to, to_arg, e, edep->data->ext_endp - e); + for (i = 1; i < edep->data->frag_id; i++) + erts_print_base64(to, to_arg, edep->data[i].extp, + edep->data[i].ext_endp - edep->data[i].extp); } } diff --git a/erts/emulator/beam/erl_ptab.h b/erts/emulator/beam/erl_ptab.h index 94f0247492..c30a684002 100644 --- a/erts/emulator/beam/erl_ptab.h +++ b/erts/emulator/beam/erl_ptab.h @@ -68,8 +68,11 @@ typedef struct { Uint64 started_interval; struct reg_proc *reg; ErtsLink *links; - ErtsMonitor *monitors; + /* Local target monitors, double linked list + contains the remote part of local monitors */ ErtsMonitor *lt_monitors; + /* other monitors, rb tree */ + ErtsMonitor *monitors; } alive; /* --- While being released --- */ diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 640ca338d9..84e6e0d6fd 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -262,19 +262,12 @@ erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp, Uint32 dflags) if (acmp) { int long_atoms = 0; /* !0 if one or more atoms are longer than 255. */ int i; - int sz; - int fix_sz - = 1 /* VERSION_MAGIC */ - + 1 /* DIST_HEADER */ - + 1 /* dist header flags */ - + 1 /* number of internal cache entries */ - ; + int sz = 0; int min_sz; ASSERT(dflags & DFLAG_UTF8_ATOMS); ASSERT(acmp->hdr_sz < 0); /* Make sure cache update instructions fit */ - min_sz = fix_sz+(2+4)*acmp->sz; - sz = fix_sz; + min_sz = (2+4)*acmp->sz; for (i = 0; i < acmp->sz; i++) { Atom *a; Eterm atom; @@ -302,17 +295,28 @@ erts_finalize_atom_cache_map(ErtsAtomCacheMap *acmp, Uint32 dflags) } Uint -erts_encode_ext_dist_header_size(ErtsAtomCacheMap *acmp) +erts_encode_ext_dist_header_size(ErtsAtomCacheMap *acmp, Uint fragments) { if (!acmp) return 0; else { + int fix_sz + = 1 /* VERSION_MAGIC */ + + 1 /* DIST_HEADER */ + + 1 /* dist header flags */ + + 1 /* number of internal cache entries */ + ; ASSERT(acmp->hdr_sz >= 0); - return acmp->hdr_sz; + if (fragments > 1) + fix_sz += 8 /* sequence id */ + + 8 /* number of fragments */ + ; + return fix_sz + acmp->hdr_sz; } } -byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) +byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp, + Uint fragments, Eterm from) { /* Maximum number of atom must be less than the maximum of a 32 bits unsigned integer. Check is done in erl_init.c, erl_start function. */ @@ -346,12 +350,37 @@ byte *erts_encode_ext_dist_header_setup(byte *ctl_ext, ErtsAtomCacheMap *acmp) put_int8(acmp->sz, ep); --ep; put_int8(dist_hdr_flags, ep); - *--ep = DIST_HEADER; - *--ep = VERSION_MAGIC; + if (fragments > 1) { + ASSERT(is_pid(from)); + ep -= 8; + put_int64(fragments, ep); + ep -= 8; + put_int64(from, ep); + *--ep = DIST_FRAG_HEADER; + } else { + *--ep = DIST_HEADER; + } + *--ep = VERSION_MAGIC; return ep; } } +byte *erts_encode_ext_dist_header_fragment(byte **hdrpp, + Uint fragment, + Eterm from) +{ + byte *ep = *hdrpp, *start = ep; + ASSERT(is_pid(from)); + *ep++ = VERSION_MAGIC; + *ep++ = DIST_FRAG_CONT; + put_int64(from, ep); + ep += 8; + put_int64(fragment, ep); + ep += 8; + *hdrpp = ep; + return start; +} + #define PASS_THROUGH 'p' @@ -365,7 +394,8 @@ Sint erts_encode_ext_dist_header_finalize(ErtsDistOutputBuf* ob, int ci, sz; byte dist_hdr_flags; int long_atoms; - register byte *ep = ob->extp; + Uint64 seq_id = 0, frag_id = 0; + register byte *ep = ob->hdrp ? ob->hdrp : ob->extp; ASSERT(dflags & DFLAG_UTF8_ATOMS); /* @@ -416,7 +446,7 @@ Sint erts_encode_ext_dist_header_finalize(ErtsDistOutputBuf* ob, } goto done; } - else if (ep[1] != DIST_HEADER) { + else if (ep[1] != DIST_HEADER && ep[1] != DIST_FRAG_HEADER && ep[1] != DIST_FRAG_CONT) { ASSERT(ep[1] == SMALL_TUPLE_EXT || ep[1] == LARGE_TUPLE_EXT); ASSERT(!(dflags & DFLAG_DIST_HDR_ATOM_CACHE)); /* Node without atom cache, 'pass through' needed */ @@ -424,6 +454,17 @@ Sint erts_encode_ext_dist_header_finalize(ErtsDistOutputBuf* ob, goto done; } + if (ep[1] == DIST_FRAG_CONT) { + ep = ob->extp; + goto done; + } else if (ep[1] == DIST_FRAG_HEADER) { + /* skip the seq id and frag id */ + seq_id = get_int64(&ep[2]); + ep += 8; + frag_id = get_int64(&ep[2]); + ep += 8; + } + dist_hdr_flags = ep[2]; long_atoms = ERTS_DIST_HDR_LONG_ATOMS_FLG & ((int) dist_hdr_flags); @@ -546,11 +587,19 @@ Sint erts_encode_ext_dist_header_finalize(ErtsDistOutputBuf* ob, } --ep; put_int8(ci, ep); - *--ep = DIST_HEADER; + if (seq_id) { + ep -= 8; + put_int64(frag_id, ep); + ep -= 8; + put_int64(seq_id, ep); + *--ep = DIST_FRAG_HEADER; + } else { + *--ep = DIST_HEADER; + } *--ep = VERSION_MAGIC; done: ob->extp = ep; - ASSERT(&ob->data[0] <= ob->extp && ob->extp < ob->ext_endp); + ASSERT((byte*)ob->bin->orig_bytes <= ob->extp && ob->extp < ob->ext_endp); return reds < 0 ? 0 : reds; } @@ -635,72 +684,90 @@ byte* erts_encode_ext_ets(Eterm term, byte *ep, struct erl_off_heap_header** off off_heap); } -ErtsDistExternal * -erts_make_dist_ext_copy(ErtsDistExternal *edep, Eterm *token) + +static Uint +dist_ext_size(ErtsDistExternal *edep) { - size_t align_sz; - size_t dist_ext_sz; - size_t ext_sz = 0; - size_t token_sz = 0; - Eterm token_size; - byte *ep; - ErtsDistExternal *new_edep; + Uint sz = sizeof(ErtsDistExternal); - dist_ext_sz = ERTS_DIST_EXT_SIZE(edep); - ASSERT(edep->ext_endp && edep->extp); - ASSERT(edep->ext_endp >= edep->extp); - if (edep->binp == NULL) - ext_sz = edep->ext_endp - edep->extp; + ASSERT(edep->data->ext_endp && edep->data->extp); + ASSERT(edep->data->ext_endp >= edep->data->extp); - align_sz = ERTS_EXTRA_DATA_ALIGN_SZ(dist_ext_sz + ext_sz); + if (edep->flags & ERTS_DIST_EXT_ATOM_TRANS_TAB) { + ASSERT(0 <= edep->attab.size \ + && edep->attab.size <= ERTS_ATOM_CACHE_SIZE); + sz -= sizeof(Eterm)*(ERTS_ATOM_CACHE_SIZE - edep->attab.size); + } else { + sz -= sizeof(ErtsAtomTranslationTable); + } + return sz; +} - token_size = size_object(*token); - if (token_size) - token_sz = ERTS_HEAP_FRAG_SIZE(token_size); +Uint +erts_dist_ext_size(ErtsDistExternal *edep) +{ + Uint sz = dist_ext_size(edep); + sz += edep->data[0].frag_id * sizeof(ErtsDistExternalData); + return sz + ERTS_EXTRA_DATA_ALIGN_SZ(sz); +} - new_edep = erts_alloc(ERTS_ALC_T_EXT_TERM_DATA, - dist_ext_sz + ext_sz + align_sz + token_sz); +Uint +erts_dist_ext_data_size(ErtsDistExternal *edep) +{ + Uint sz = 0, i; + for (i = 0; i < edep->data->frag_id; i++) + sz += edep->data[i].ext_endp - edep->data[i].extp; + return sz; +} - ep = (byte *) new_edep; - sys_memcpy((void *) ep, (void *) edep, dist_ext_sz); - if (new_edep->dep) - erts_ref_dist_entry(new_edep->dep); - new_edep->heap_size = -1; - - if (ext_sz) { - ep += dist_ext_sz; - new_edep->extp = ep; - new_edep->ext_endp = ep + ext_sz; - sys_memcpy((void *) ep, (void *) edep->extp, ext_sz); +void +erts_dist_ext_frag(ErtsDistExternalData *ede_datap, ErtsDistExternal *edep) +{ + ErtsDistExternalData *new_ede_datap = &edep->data[edep->data->frag_id - ede_datap->frag_id]; + sys_memcpy(new_ede_datap, ede_datap, sizeof(ErtsDistExternalData)); + + /* If the data is not backed by a binary, we create one here to keep + things simple. Only custom distribution drivers should use lists. */ + if (new_ede_datap->binp == NULL) { + size_t ext_sz = ede_datap->ext_endp - ede_datap->extp; + new_ede_datap->binp = erts_bin_nrml_alloc(ext_sz); + sys_memcpy(new_ede_datap->binp->orig_bytes, (void *) ede_datap->extp, ext_sz); + new_ede_datap->extp = (byte*)new_ede_datap->binp->orig_bytes; + new_ede_datap->ext_endp = (byte*)new_ede_datap->binp->orig_bytes + ext_sz; } else { - erts_refc_inc(&new_edep->binp->intern.refc, 2); + erts_refc_inc(&new_ede_datap->binp->intern.refc, 2); } +} - /* Copy the seq_trace token */ - if (is_not_nil(*token)) { - ErlHeapFragment *heap_frag; - ErlOffHeap *ohp; - Eterm *hp; - heap_frag = erts_dist_ext_trailer(new_edep); - ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size); - hp = heap_frag->mem; - ohp = &heap_frag->off_heap; - *token = copy_struct(*token, token_size, &hp, ohp); - } - return new_edep; +void +erts_make_dist_ext_copy(ErtsDistExternal *edep, ErtsDistExternal *new_edep) +{ + size_t dist_ext_sz = dist_ext_size(edep); + byte *ep; + + ep = (byte *) new_edep; + sys_memcpy((void *) ep, (void *) edep, dist_ext_sz); + erts_ref_dist_entry(new_edep->dep); + + ep += dist_ext_sz; + + new_edep->data = (ErtsDistExternalData*)ep; + sys_memzero(new_edep->data, sizeof(ErtsDistExternalData) * edep->data->frag_id); + new_edep->data->frag_id = edep->data->frag_id; + erts_dist_ext_frag(edep->data, new_edep); } void erts_free_dist_ext_copy(ErtsDistExternal *edep) { - if (edep->dep) - erts_deref_dist_entry(edep->dep); - if (edep->binp) - erts_bin_release(edep->binp); - erts_free(ERTS_ALC_T_EXT_TERM_DATA, edep); + int i; + erts_deref_dist_entry(edep->dep); + for (i = 0; i < edep->data->frag_id; i++) + if (edep->data[i].binp) + erts_bin_release(edep->data[i].binp); } -int +ErtsPrepDistExtRes erts_prepare_dist_ext(ErtsDistExternal *edep, byte *ext, Uint size, @@ -711,10 +778,6 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, { register byte *ep; - edep->heap_size = -1; - edep->flags = 0; - edep->dep = dep; - ASSERT(dep); erts_de_rlock(dep); @@ -734,10 +797,6 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, size--; } - edep->heap_size = -1; - edep->ext_endp = ext + size; - edep->binp = binp; - ep = ext; if (size < 2) @@ -753,16 +812,33 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, goto fail; } + edep->heap_size = -1; + edep->flags = 0; + edep->dep = dep; + edep->connection_id = conn_id; + edep->data->ext_endp = ext+size; + edep->data->binp = binp; + edep->data->seq_id = 0; + edep->data->frag_id = 1; + if (dep->flags & DFLAG_DIST_HDR_ATOM_CACHE) edep->flags |= ERTS_DIST_EXT_DFLAG_HDR; - edep->connection_id = dep->connection_id; - - if (ep[1] != DIST_HEADER) { + if (ep[1] != DIST_HEADER && ep[1] != DIST_FRAG_HEADER && ep[1] != DIST_FRAG_CONT) { if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) goto bad_hdr; edep->attab.size = 0; - edep->extp = ext; + edep->data->extp = ext; + } + else if (ep[1] == DIST_FRAG_CONT) { + if (!(dep->flags & DFLAG_FRAGMENTS)) + goto bad_hdr; + edep->attab.size = 0; + edep->data->extp = ext + 1 + 1 + 8 + 8; + edep->data->seq_id = get_int64(&ep[2]); + edep->data->frag_id = get_int64(&ep[2+8]); + erts_de_runlock(dep); + return ERTS_PREP_DIST_EXT_FRAG_CONT; } else { int tix; @@ -771,9 +847,17 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, if (!(edep->flags & ERTS_DIST_EXT_DFLAG_HDR)) goto bad_hdr; + if (ep[1] == DIST_FRAG_HEADER) { + if (!(dep->flags & DFLAG_FRAGMENTS)) + goto bad_hdr; + edep->data->seq_id = get_int64(&ep[2]); + edep->data->frag_id = get_int64(&ep[2+8]); + ep += 16; + } + #undef CHKSIZE #define CHKSIZE(SZ) \ - do { if ((SZ) > edep->ext_endp - ep) goto bad_hdr; } while(0) + do { if ((SZ) > edep->data->ext_endp - ep) goto bad_hdr; } while(0) CHKSIZE(1+1+1); ep += 2; @@ -903,7 +987,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, #endif } } - edep->extp = ep; + edep->data->extp = ep; #ifdef ERTS_DEBUG_USE_DIST_SEP if (*ep != VERSION_MAGIC) goto bad_hdr; @@ -928,7 +1012,7 @@ erts_prepare_dist_ext(ErtsDistExternal *edep, erts_this_node->sysname, edep->dep->sysname, dist_entry_channel_no(edep->dep)); - for (ep = ext; ep < edep->ext_endp; ep++) + for (ep = ext; ep < edep->data->ext_endp; ep++) erts_dsprintf(dsbufp, ep != ext ? ",%b8u" : "<<%b8u", *ep); erts_dsprintf(dsbufp, ">>"); erts_send_warning_to_logger_nogl(dsbufp); @@ -953,9 +1037,9 @@ bad_dist_ext(ErtsDistExternal *edep) erts_this_node->sysname, dep->sysname, dist_entry_channel_no(dep)); - for (ep = edep->extp; ep < edep->ext_endp; ep++) + for (ep = edep->data->extp; ep < edep->data->ext_endp; ep++) erts_dsprintf(dsbufp, - ep != edep->extp ? ",%b8u" : "<<...,%b8u", + ep != edep->data->extp ? ",%b8u" : "<<...,%b8u", *ep); erts_dsprintf(dsbufp, ">>\n"); erts_dsprintf(dsbufp, "ATOM_CACHE_REF translations: "); @@ -973,30 +1057,32 @@ bad_dist_ext(ErtsDistExternal *edep) } Sint -erts_decode_dist_ext_size(ErtsDistExternal *edep) +erts_decode_dist_ext_size(ErtsDistExternal *edep, int kill_connection) { Sint res; byte *ep; - if (edep->extp >= edep->ext_endp) + + if (edep->data->extp >= edep->data->ext_endp) goto fail; #ifndef ERTS_DEBUG_USE_DIST_SEP if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) { - if (*edep->extp == VERSION_MAGIC) + if (*edep->data->extp == VERSION_MAGIC) goto fail; - ep = edep->extp; + ep = edep->data->extp; } else #endif { - if (*edep->extp != VERSION_MAGIC) + if (*edep->data->extp != VERSION_MAGIC) goto fail; - ep = edep->extp+1; + ep = edep->data->extp+1; } - res = decoded_size(ep, edep->ext_endp, 0, NULL); + res = decoded_size(ep, edep->data->ext_endp, 0, NULL); if (res >= 0) return res; fail: - bad_dist_ext(edep); + if (kill_connection) + bad_dist_ext(edep); return -1; } @@ -1022,12 +1108,15 @@ Sint erts_decode_ext_size_ets(byte *ext, Uint size) */ Eterm erts_decode_dist_ext(ErtsHeapFactory* factory, - ErtsDistExternal *edep) + ErtsDistExternal *edep, + int kill_connection) { Eterm obj; - byte* ep = edep->extp; + byte* ep; + + ep = edep->data->extp; - if (ep >= edep->ext_endp) + if (ep >= edep->data->ext_endp) goto error; #ifndef ERTS_DEBUG_USE_DIST_SEP if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) { @@ -1045,14 +1134,15 @@ erts_decode_dist_ext(ErtsHeapFactory* factory, if (!ep) goto error; - edep->extp = ep; + edep->data->extp = ep; return obj; error: erts_factory_undo(factory); - bad_dist_ext(edep); + if (kill_connection) + bad_dist_ext(edep); return THE_NON_VALUE; } @@ -1097,6 +1187,7 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) Eterm res; Sint hsz; ErtsDistExternal ede; + ErtsDistExternalData ede_data; Eterm *tp; Eterm real_bin; Uint offset; @@ -1109,7 +1200,8 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) ede.flags = ERTS_DIST_EXT_ATOM_TRANS_TAB; ede.dep = NULL; ede.heap_size = -1; - + ede.data = &ede_data; + if (is_not_tuple(BIF_ARG_1)) goto badarg; tp = tuple_val(BIF_ARG_1); @@ -1134,15 +1226,15 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2) if (bitsize != 0) goto badarg; - ede.extp = binary_bytes(real_bin)+offset; - ede.ext_endp = ede.extp + size; + ede.data->extp = binary_bytes(real_bin)+offset; + ede.data->ext_endp = ede.data->extp + size; - hsz = erts_decode_dist_ext_size(&ede); + hsz = erts_decode_dist_ext_size(&ede, 1); if (hsz < 0) goto badarg; erts_factory_proc_prealloc_init(&factory, BIF_P, hsz); - res = erts_decode_dist_ext(&factory, &ede); + res = erts_decode_dist_ext(&factory, &ede, 1); erts_factory_close(&factory); if (is_value(res)) diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index 91c028c9bd..396cd9f802 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -58,6 +58,8 @@ #define SMALL_ATOM_UTF8_EXT 'w' #define DIST_HEADER 'D' +#define DIST_FRAG_HEADER 'E' +#define DIST_FRAG_CONT 'F' #define ATOM_CACHE_REF 'R' #define ATOM_INTERNAL_REF2 'I' #define ATOM_INTERNAL_REF3 'K' @@ -123,15 +125,22 @@ typedef struct { #define ERTS_DIST_CON_ID_MASK ((Uint32) 0x00ffffff) /* also in net_kernel.erl */ struct binary; +typedef struct erl_dist_external_data ErtsDistExternalData; -typedef struct erl_dist_external { - DistEntry *dep; +struct erl_dist_external_data { + Uint64 seq_id; + Uint64 frag_id; byte *extp; byte *ext_endp; struct binary *binp; +}; + +typedef struct erl_dist_external { Sint heap_size; - Uint32 connection_id; + DistEntry *dep; Uint32 flags; + Uint32 connection_id; + ErtsDistExternalData *data; ErtsAtomTranslationTable attab; } ErtsDistExternal; @@ -158,8 +167,9 @@ void erts_reset_atom_cache_map(ErtsAtomCacheMap *); void erts_destroy_atom_cache_map(ErtsAtomCacheMap *); void erts_finalize_atom_cache_map(ErtsAtomCacheMap *, Uint32); -Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *); -byte *erts_encode_ext_dist_header_setup(byte *, ErtsAtomCacheMap *); +Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *, Uint); +byte *erts_encode_ext_dist_header_setup(byte *, ErtsAtomCacheMap *, Uint, Eterm); +byte *erts_encode_ext_dist_header_fragment(byte **, Uint, Eterm); Sint erts_encode_ext_dist_header_finalize(ErtsDistOutputBuf*, DistEntry *, Uint32 dflags, Sint reds); struct erts_dsig_send_context; int erts_encode_dist_ext_size(Eterm, Uint32, ErtsAtomCacheMap*, Uint* szp); @@ -174,20 +184,24 @@ Uint erts_encode_ext_size_ets(Eterm); void erts_encode_ext(Eterm, byte **); byte* erts_encode_ext_ets(Eterm, byte *, struct erl_off_heap_header** ext_off_heap); +Uint erts_dist_ext_size(ErtsDistExternal *); +Uint erts_dist_ext_data_size(ErtsDistExternal *); void erts_free_dist_ext_copy(ErtsDistExternal *); -ERTS_GLB_INLINE void *erts_dist_ext_trailer(ErtsDistExternal *); -ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Eterm *); -void *erts_dist_ext_trailer(ErtsDistExternal *); -void erts_destroy_dist_ext_copy(ErtsDistExternal *); - -#define ERTS_PREP_DIST_EXT_FAILED (-1) -#define ERTS_PREP_DIST_EXT_SUCCESS (0) -#define ERTS_PREP_DIST_EXT_CLOSED (1) - -int erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint, struct binary *, - DistEntry *, Uint32, ErtsAtomCache *); -Sint erts_decode_dist_ext_size(ErtsDistExternal *); -Eterm erts_decode_dist_ext(ErtsHeapFactory* factory, ErtsDistExternal *); +void erts_make_dist_ext_copy(ErtsDistExternal *, ErtsDistExternal *); +void erts_dist_ext_frag(ErtsDistExternalData *, ErtsDistExternal *); +#define erts_get_dist_ext(HFRAG) ((ErtsDistExternal*)((HFRAG)->mem + (HFRAG)->used_size)) + +typedef enum { + ERTS_PREP_DIST_EXT_FAILED, + ERTS_PREP_DIST_EXT_SUCCESS, + ERTS_PREP_DIST_EXT_FRAG_CONT, + ERTS_PREP_DIST_EXT_CLOSED +} ErtsPrepDistExtRes; + +ErtsPrepDistExtRes erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint, struct binary *, + DistEntry *, Uint32, ErtsAtomCache *); +Sint erts_decode_dist_ext_size(ErtsDistExternal *, int); +Eterm erts_decode_dist_ext(ErtsHeapFactory*, ErtsDistExternal *, int); Sint erts_decode_ext_size(byte*, Uint); Sint erts_decode_ext_size_ets(byte*, Uint); @@ -203,17 +217,4 @@ int erts_debug_max_atom_out_cache_index(void); int erts_debug_atom_to_out_cache_index(Eterm); void transcode_free_ctx(DistEntry* dep); -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE void * -erts_dist_ext_trailer(ErtsDistExternal *edep) -{ - void *res = (void *) (edep->ext_endp - + ERTS_EXTRA_DATA_ALIGN_SZ(edep->ext_endp)); - ASSERT((((UWord) res) % sizeof(Uint)) == 0); - return res; -} - -#endif - #endif /* ERL_EXTERNAL_H__ */ diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index d413659f81..8e8198b0b0 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -44,7 +44,7 @@ #include "erl_time.h" #if 0 -#define DEBUG_PRINT(FMT, ...) erts_printf(FMT "\r\n", ##__VA_ARGS__) +#define DEBUG_PRINT(FMT, ...) do { erts_printf(FMT "\r\n", ##__VA_ARGS__); fflush(stdout); } while(0) #define DEBUG_PRINT_FD(FMT, STATE, ...) \ DEBUG_PRINT("%d: " FMT " (ev=%s, ac=%s, flg=%s)", \ (STATE) ? (STATE)->fd : (ErtsSysFdType)-1, ##__VA_ARGS__, \ diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl index 885c66331c..5e268c748f 100644 --- a/erts/emulator/test/distribution_SUITE.erl +++ b/erts/emulator/test/distribution_SUITE.erl @@ -62,7 +62,8 @@ bad_dist_ext_control/1, bad_dist_ext_connection_id/1, bad_dist_ext_size/1, - start_epmd_false/1, epmd_module/1]). + start_epmd_false/1, epmd_module/1, + bad_dist_fragments/1]). %% Internal exports. -export([sender/3, receiver2/2, dummy_waiter/0, dead_process/0, @@ -90,7 +91,7 @@ all() -> dist_parallel_send, atom_roundtrip, unicode_atom_roundtrip, atom_roundtrip_r16b, contended_atom_cache_entry, contended_unicode_atom_cache_entry, - bad_dist_structure, {group, bad_dist_ext}, + {group, bad_dist}, {group, bad_dist_ext}, start_epmd_false, epmd_module]. groups() -> @@ -100,6 +101,8 @@ groups() -> {trap_bif, [], [trap_bif_1, trap_bif_2, trap_bif_3]}, {dist_auto_connect, [], [dist_auto_connect_never, dist_auto_connect_once]}, + {bad_dist, [], + [bad_dist_structure, bad_dist_fragments]}, {bad_dist_ext, [], [bad_dist_ext_receive, bad_dist_ext_process_info, bad_dist_ext_size, @@ -1382,6 +1385,15 @@ get_conflicting_unicode_atoms(CIX, N) -> -define(DOP_DEMONITOR_P, 20). -define(DOP_MONITOR_P_EXIT, 21). +-define(DOP_SEND_SENDER, 22). +-define(DOP_SEND_SENDER_TT, 23). + +-define(DOP_PAYLOAD_EXIT, 24). +-define(DOP_PAYLOAD_EXIT_TT, 25). +-define(DOP_PAYLOAD_EXIT2, 26). +-define(DOP_PAYLOAD_EXIT2_TT, 27). +-define(DOP_PAYLOAD_MONITOR_P_EXIT, 28). + start_monitor(Offender,P) -> Parent = self(), Q = spawn(Offender, @@ -1515,7 +1527,145 @@ bad_dist_structure(Config) when is_list(Config) -> stop_node(Victim), ok. +%% Test various dist fragmentation errors +bad_dist_fragments(Config) when is_list(Config) -> + ct:timetrap({seconds, 15}), + + {ok, Offender} = start_node(bad_dist_fragment_offender), + {ok, Victim} = start_node(bad_dist_fragment_victim), + Msg = iolist_to_binary(dmsg_ext(lists:duplicate(255,255))), + + start_node_monitors([Offender,Victim]), + Parent = self(), + P = spawn(Victim, + fun () -> + process_flag(trap_exit,true), + Parent ! {self(), started}, + receive check_msgs -> ok end, + bad_dist_struct_check_msgs([one, + two]), + Parent ! {self(), messages_checked}, + receive done -> ok end + end), + receive {P, started} -> ok end, + pong = rpc:call(Victim, net_adm, ping, [Offender]), + verify_up(Offender, Victim), + true = lists:member(Offender, rpc:call(Victim, erlang, nodes, [])), + start_monitor(Offender,P), + P ! one, + + start_monitor(Offender,P), + send_bad_fragments(Offender, Victim, P,{?DOP_SEND,?COOKIE,P},3, + [{frg, 1, binary:part(Msg, 10,byte_size(Msg)-10)}]), + + start_monitor(Offender,P), + send_bad_fragments(Offender, Victim, P,{?DOP_SEND,?COOKIE,P},3, + [{hdr, 3, binary:part(Msg, 0,10)}, + {frg, 1, binary:part(Msg, 10,byte_size(Msg)-10)}]), + + start_monitor(Offender,P), + send_bad_fragments(Offender, Victim, P,{?DOP_SEND,?COOKIE,P},3, + [{hdr, 3, binary:part(Msg, 0,10)}, + {hdr, 3, binary:part(Msg, 0,10)}]), + + start_monitor(Offender,P), + send_bad_fragments(Offender, Victim, P,{?DOP_SEND,?COOKIE,P,broken},3, + [{hdr, 1, binary:part(Msg, 10,byte_size(Msg)-10)}]), + + start_monitor(Offender,P), + send_bad_fragments(Offender, Victim, P,{?DOP_SEND,?COOKIE,P},3, + [{hdr, 3, binary:part(Msg, 10,byte_size(Msg)-10)}, + close]), + + start_monitor(Offender,P), + ExitVictim = spawn(Victim, fun() -> receive ok -> ok end end), + send_bad_fragments(Offender, Victim, P,{?DOP_PAYLOAD_EXIT,P,ExitVictim},2, + [{hdr, 1, [131]}]), + + start_monitor(Offender,P), + Exit2Victim = spawn(Victim, fun() -> receive ok -> ok end end), + send_bad_fragments(Offender, Victim, P,{?DOP_PAYLOAD_EXIT2,P,ExitVictim},2, + [{hdr, 1, [132]}]), + + start_monitor(Offender,P), + DownVictim = spawn(Victim, fun() -> receive ok -> ok end end), + DownRef = erlang:monitor(process, DownVictim), + send_bad_fragments(Offender, Victim, P,{?DOP_PAYLOAD_MONITOR_P_EXIT,P,DownVictim,DownRef},2, + [{hdr, 1, [133]}]), + + P ! two, + P ! check_msgs, + receive + {P, messages_checked} -> ok + after 5000 -> + exit(victim_is_dead) + end, + + {message_queue_len, 0} + = rpc:call(Victim, erlang, process_info, [P, message_queue_len]), + + unlink(P), + P ! done, + stop_node(Offender), + stop_node(Victim), + ok. + +dmsg_frag_hdr(Frag) -> + dmsg_frag_hdr(erlang:phash2(self()), Frag). +dmsg_frag_hdr(Seq, Frag) -> + [131, $E, uint64_be(Seq), uint64_be(Frag), 0]. + +dmsg_frag(Frag) -> + dmsg_frag(erlang:phash2(self()), Frag). +dmsg_frag(Seq, Frag) -> + [131, $F, uint64_be(Seq), uint64_be(Frag)]. + +send_bad_fragments(Offender,VictimNode,Victim,Ctrl,WhereToPutSelf,Fragments) -> + Parent = self(), + Done = make_ref(), + ct:pal("Send: ~p",[Fragments]), + spawn_link(Offender, + fun () -> + Node = node(Victim), + pong = net_adm:ping(Node), + erlang:monitor_node(Node, true), + DCtrl = dctrl(Node), + Ctrl1 = case WhereToPutSelf of + 0 -> + Ctrl; + N when N > 0 -> + setelement(N,Ctrl,self()) + end, + + FragData = [case Type of + hdr -> + [dmsg_frag_hdr(FragId), + dmsg_ext(Ctrl1), FragPayload]; + frg -> + [dmsg_frag(FragId), FragPayload] + end || {Type, FragId, FragPayload} <- Fragments], + + receive {nodedown, Node} -> exit("premature nodedown") + after 10 -> ok + end, + + [ dctrl_send(DCtrl, D) || D <- FragData ], + [ erlang:port_close(DCtrl) || close <- Fragments], + + receive {nodedown, Node} -> ok + after 5000 -> exit("missing nodedown") + end, + Parent ! {FragData,Done} + end), + receive + {WhatSent,Done} -> + io:format("Offender sent ~p~n",[WhatSent]), + verify_nc(VictimNode), + ok + after 7000 -> + exit(unable_to_send) + end. bad_dist_ext_receive(Config) when is_list(Config) -> {ok, Offender} = start_node(bad_dist_ext_receive_offender), @@ -2124,8 +2274,25 @@ start_node(Config, Args, Rel) when is_list(Config), is_list(Rel) -> start_node(Name, Args, Rel). stop_node(Node) -> + verify_nc(Node), test_server:stop_node(Node). +verify_nc(Node) -> + P = self(), + Ref = make_ref(), + spawn(Node, + fun() -> + R = erts_test_utils:check_node_dist(fun(E) -> E end), + P ! {Ref, R} + end), + receive + {Ref, ok} -> + ok; + {Ref, Error} -> + ct:log("~s",[Error]), + ct:fail(failed_nc_refc_check) + end. + freeze_node(Node, MS) -> Own = 300, DoingIt = make_ref(), @@ -2485,6 +2652,17 @@ mk_ref({NodeNameExt, Creation}, Numbers) when is_integer(Creation), exit({unexpected_binary_to_term_result, Other}) end. +uint64_be(Uint) when is_integer(Uint), 0 =< Uint, Uint < 1 bsl 64 -> + [(Uint bsr 56) band 16#ff, + (Uint bsr 48) band 16#ff, + (Uint bsr 40) band 16#ff, + (Uint bsr 32) band 16#ff, + (Uint bsr 24) band 16#ff, + (Uint bsr 16) band 16#ff, + (Uint bsr 8) band 16#ff, + Uint band 16#ff]; +uint64_be(Uint) -> + exit({badarg, uint64_be, [Uint]}). uint32_be(Uint) when is_integer(Uint), 0 =< Uint, Uint < 1 bsl 32 -> [(Uint bsr 24) band 16#ff, diff --git a/erts/emulator/test/erts_test_utils.erl b/erts/emulator/test/erts_test_utils.erl index ac2f2435be..0c3ef3e0fc 100644 --- a/erts/emulator/test/erts_test_utils.erl +++ b/erts/emulator/test/erts_test_utils.erl @@ -27,6 +27,7 @@ -export([mk_ext_pid/3, mk_ext_port/2, mk_ext_ref/2, + available_internal_state/1, check_node_dist/0, check_node_dist/1, check_node_dist/3]). @@ -157,6 +158,21 @@ mk_ext_ref({NodeName, Creation}, Numbers) when is_list(NodeName), end. +available_internal_state(Bool) when Bool == true; Bool == false -> + case {Bool, + (catch erts_debug:get_internal_state(available_internal_state))} of + {true, true} -> + true; + {false, true} -> + erts_debug:set_internal_state(available_internal_state, false), + true; + {true, _} -> + erts_debug:set_internal_state(available_internal_state, true), + false; + {false, _} -> + false + end. + %% %% Check reference counters for node- and dist entries. @@ -168,16 +184,21 @@ check_node_dist() -> end). check_node_dist(Fail) -> + AIS = available_internal_state(true), + [erlang:garbage_collect(P) || P <- erlang:processes()], {{node_references, NodeRefs}, {dist_references, DistRefs}} = erts_debug:get_internal_state(node_and_dist_references), - check_node_dist(Fail, NodeRefs, DistRefs). - - + R = check_node_dist(Fail, NodeRefs, DistRefs), + available_internal_state(AIS), + R. check_node_dist(Fail, NodeRefs, DistRefs) -> - check_nd_refc({node(),erlang:system_info(creation)}, - NodeRefs, DistRefs, Fail). + AIS = available_internal_state(true), + R = check_nd_refc({node(),erlang:system_info(creation)}, + NodeRefs, DistRefs, Fail), + available_internal_state(AIS), + R. check_nd_refc({ThisNodeName, ThisCreation}, NodeRefs, DistRefs, Fail) -> diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl index b3d8f9584d..ca5c93f535 100644 --- a/erts/emulator/test/node_container_SUITE.erl +++ b/erts/emulator/test/node_container_SUITE.erl @@ -71,25 +71,10 @@ init_per_suite(Config) -> end_per_suite(_Config) -> erts_debug:set_internal_state(available_internal_state, true), erts_debug:set_internal_state(node_tab_delayed_delete, -1), %% restore original value - available_internal_state(false). - -available_internal_state(Bool) when Bool == true; Bool == false -> - case {Bool, - (catch erts_debug:get_internal_state(available_internal_state))} of - {true, true} -> - true; - {false, true} -> - erts_debug:set_internal_state(available_internal_state, false), - true; - {true, _} -> - erts_debug:set_internal_state(available_internal_state, true), - false; - {false, _} -> - false - end. + erts_test_util:available_internal_state(false). init_per_testcase(_Case, Config) when is_list(Config) -> - available_internal_state(true), + erts_test_util:available_internal_state(true), Config. end_per_testcase(_Case, Config) when is_list(Config) -> @@ -928,9 +913,9 @@ id(X) -> -define(ND_REFS, erts_debug:get_internal_state(node_and_dist_references)). node_container_refc_check(Node) when is_atom(Node) -> - AIS = available_internal_state(true), + AIS = erts_test_util:available_internal_state(true), nc_refc_check(Node), - available_internal_state(AIS). + erts_test_util:available_internal_state(AIS). nc_refc_check(Node) when is_atom(Node) -> Ref = make_ref(), -- cgit v1.2.3 From d19134577375fc41033210e6cf002617ee0a4306 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Fri, 25 Jan 2019 11:56:01 +0100 Subject: erts: Make remote send of exit/2 trap OTP-15612 --- erts/emulator/beam/bif.c | 36 +++++++++++++++++++++++++++++++----- erts/emulator/beam/dist.c | 27 ++++++++++++++++++--------- erts/emulator/beam/dist.h | 2 +- 3 files changed, 50 insertions(+), 15 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index a71907505c..eb44d5632a 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1302,9 +1302,17 @@ static BIF_RETTYPE send_exit_signal_bif(Process *c_p, Eterm id, Eterm reason, in ERTS_BIF_PREP_RET(ret_val, am_true); /* Old incarnation of this node... */ else { int code; - ErtsDSigData dsd; + ErtsSendContext ctx; - code = erts_dsig_prepare(&dsd, dep, c_p, ERTS_PROC_LOCK_MAIN, + ctx.suspend = !0; + ctx.connect = !0; + ctx.deref_dep = 0; + ctx.return_term = am_true; + ctx.dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(c_p) * TERM_TO_BINARY_LOOP_FACTOR); + ctx.dss.phase = ERTS_DSIG_SEND_PHASE_INIT; + ctx.dss.from = c_p->common.id; + + code = erts_dsig_prepare(&ctx.dsd, dep, c_p, ERTS_PROC_LOCK_MAIN, ERTS_DSP_NO_LOCK, 0, 1); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: @@ -1313,11 +1321,29 @@ static BIF_RETTYPE send_exit_signal_bif(Process *c_p, Eterm id, Eterm reason, in break; case ERTS_DSIG_PREP_PENDING: case ERTS_DSIG_PREP_CONNECTED: - code = erts_dsig_send_exit2(&dsd, c_p->common.id, id, reason); - if (code == ERTS_DSIG_SEND_YIELD) + code = erts_dsig_send_exit2(&ctx, c_p->common.id, id, reason); + switch (code) { + case ERTS_DSIG_SEND_YIELD: ERTS_BIF_PREP_YIELD_RETURN(ret_val, c_p, am_true); - else + break; + case ERTS_DSIG_SEND_CONTINUE: + BUMP_ALL_REDS(c_p); + erts_set_gc_state(c_p, 0); + ERTS_BIF_PREP_TRAP1(ret_val, &dsend_continue_trap_export, c_p, + erts_dsend_export_trap_context(c_p, &ctx)); + break; + case ERTS_DSIG_SEND_OK: ERTS_BIF_PREP_RET(ret_val, am_true); + break; + case ERTS_DSIG_SEND_TOO_LRG: + erts_set_gc_state(c_p, 1); + ERTS_BIF_PREP_ERROR(ret_val, c_p, SYSTEM_LIMIT); + break; + default: + ASSERT(! "Invalid dsig send exit2 result"); + ERTS_BIF_PREP_ERROR(ret_val, c_p, EXC_INTERNAL_ERROR); + break; + } break; default: ASSERT(! "Invalid dsig prepare result"); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 78674848a1..749760a1b3 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -178,6 +178,7 @@ static Export *dist_ctrl_put_data_trap; /* forward declarations */ static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, int force_busy); +static int dsig_send_exit_ctx(ErtsSendContext *ctx, Eterm ctl, Eterm msg); static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy); static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm); static void init_nodes_monitors(void); @@ -1276,25 +1277,22 @@ erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm from, Eterm local, Eterm remote, E } int -erts_dsig_send_exit2(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason) +erts_dsig_send_exit2(ErtsSendContext *ctx, Eterm local, Eterm remote, Eterm reason) { - DeclareTmpHeapNoproc(ctl_heap,5); int res; Eterm ctl, msg; - UseTmpHeapNoproc(5); - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { - ctl = TUPLE3(&ctl_heap[0], + if (ctx->dsd.dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_EXIT2), local, remote); msg = reason; } else { - ctl = TUPLE4(&ctl_heap[0], + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_EXIT2), local, remote, reason); msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, local, 0); - UnUseTmpHeapNoproc(5); + res = dsig_send_exit_ctx(ctx, ctl, msg); return res; } @@ -2162,7 +2160,7 @@ static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, ctx.msg = msg; ctx.from = from; ctx.force_busy = force_busy; - ctx.force_encode = 1; + ctx.force_encode = force_busy; ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; ctx.reds = 1; /* provoke assert below (no reduction count with force_encode) */ ret = erts_dsig_send(dsdp, &ctx); @@ -2170,6 +2168,17 @@ static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, return ret; } +static int dsig_send_exit_ctx(ErtsSendContext *ctx, Eterm ctl, Eterm msg) +{ + int ret; + ctx->dss.ctl = ctl; + ctx->dss.msg = msg; + ctx->dss.force_busy = 0; + ctx->dss.force_encode = 0; + ret = erts_dsig_send(&ctx->dsd, &ctx->dss); + return ret; +} + static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) { struct erts_dsig_send_context ctx; diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 034b75df38..8ea214a0f2 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -415,7 +415,7 @@ extern int erts_dsig_send_unlink(ErtsDSigData *, Eterm, Eterm); extern int erts_dsig_send_reg_msg(Eterm, Eterm, ErtsSendContext*); extern int erts_dsig_send_group_leader(ErtsDSigData *, Eterm, Eterm); extern int erts_dsig_send_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); -extern int erts_dsig_send_exit2(ErtsDSigData *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_exit2(ErtsSendContext *, Eterm, Eterm, Eterm); extern int erts_dsig_send_demonitor(ErtsDSigData *, Eterm, Eterm, Eterm, int); extern int erts_dsig_send_monitor(ErtsDSigData *, Eterm, Eterm, Eterm); extern int erts_dsig_send_m_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm, Eterm); -- cgit v1.2.3 From 6493f5e396c7528ef6696ce440619550edb5c6ff Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Fri, 25 Jan 2019 16:29:26 +0100 Subject: erts: Add distr testcases for fragmentation --- erts/emulator/test/distribution_SUITE.erl | 156 +++++++++++++++++++++++++++- erts/emulator/test/node_container_SUITE.erl | 8 +- 2 files changed, 156 insertions(+), 8 deletions(-) (limited to 'erts') diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl index 5e268c748f..4f70b51aa0 100644 --- a/erts/emulator/test/distribution_SUITE.erl +++ b/erts/emulator/test/distribution_SUITE.erl @@ -63,7 +63,11 @@ bad_dist_ext_connection_id/1, bad_dist_ext_size/1, start_epmd_false/1, epmd_module/1, - bad_dist_fragments/1]). + bad_dist_fragments/1, + message_latency_large_message/1, + message_latency_large_link_exit/1, + message_latency_large_monitor_exit/1, + message_latency_large_exit2/1]). %% Internal exports. -export([sender/3, receiver2/2, dummy_waiter/0, dead_process/0, @@ -91,6 +95,7 @@ all() -> dist_parallel_send, atom_roundtrip, unicode_atom_roundtrip, atom_roundtrip_r16b, contended_atom_cache_entry, contended_unicode_atom_cache_entry, + {group, message_latency}, {group, bad_dist}, {group, bad_dist_ext}, start_epmd_false, epmd_module]. @@ -106,7 +111,13 @@ groups() -> {bad_dist_ext, [], [bad_dist_ext_receive, bad_dist_ext_process_info, bad_dist_ext_size, - bad_dist_ext_control, bad_dist_ext_connection_id]}]. + bad_dist_ext_control, bad_dist_ext_connection_id]}, + {message_latency, [], + [message_latency_large_message, + message_latency_large_link_exit, + message_latency_large_monitor_exit, + message_latency_large_exit2]} + ]. %% Tests pinging a node in different ways. ping(Config) when is_list(Config) -> @@ -571,10 +582,20 @@ do_busy_test(Node, Fun) -> %% Don't match arity; it is different in debug and %% optimized emulator [{status, suspended}, - {current_function, {erlang, bif_return_trap, _}}] = Pinfo, + {current_function, {Mod, Func, _}}] = Pinfo, + if + Mod =:= erlang andalso Func =:= bif_return_trap -> + true; + Mod =:= erts_internal andalso Func =:= dsend_continue_trap -> + true; + true -> + ct:fail({incorrect, pinfo, Pinfo}) + end, receive {'DOWN', M, process, P, Reason} -> io:format("~p died with exit reason ~p~n", [P, Reason]), + verify_nc(node()), + verify_nc(Node), normal = Reason end end. @@ -934,7 +955,9 @@ dist_auto_connect_never(Config) when is_list(Config) -> ok; {do_dist_auto_connect, Error} -> {error, Error}; - Other -> + %% The io:formats in dos_dist_auto_connect will + %% generate port output messages that are ok + Other when not is_port(element(1, Other))-> {error, Other} after 32000 -> timeout @@ -1367,6 +1390,131 @@ get_conflicting_unicode_atoms(CIX, N) -> get_conflicting_unicode_atoms(CIX, N) end. + +%% The message_latency_large tests that small distribution messages are +%% not blocked by other large distribution messages. Basically it tests +%% that fragmentation of distribution messages works. +message_latency_large_message(Config) when is_list(Config) -> + measure_latency_large_message(?FUNCTION_NAME, fun(Dropper, Payload) -> Dropper ! Payload end). + +message_latency_large_exit2(Config) when is_list(Config) -> + measure_latency_large_message(?FUNCTION_NAME, fun erlang:exit/2). + +message_latency_large_link_exit(Config) when is_list(Config) -> + message_latency_large_exit(?FUNCTION_NAME, fun erlang:link/1). + +message_latency_large_monitor_exit(Config) when is_list(Config) -> + message_latency_large_exit(?FUNCTION_NAME, fun(Dropper) -> + Dropper ! {monitor, self()}, + receive ok -> ok end + end). + +message_latency_large_exit(Nodename, ReasonFun) -> + measure_latency_large_message( + Nodename, + fun(Dropper, Payload) -> + Pid = spawn(fun() -> + receive go -> ok end, + ReasonFun(Dropper), + exit(Payload) + end), + + FlushTrace = fun F() -> + receive + {trace, Pid, _, _} = M -> + F() + after 0 -> + ok + end + end, + + erlang:trace(Pid, true, [exiting]), + Pid ! go, + receive + {trace, Pid, out_exited, 0} -> + FlushTrace() + end + end). + +measure_latency_large_message(Nodename, DataFun) -> + + erlang:system_monitor(self(), [busy_dist_port]), + + {ok, N} = start_node(Nodename), + + Dropper = spawn(N, fun F() -> + process_flag(trap_exit, true), + receive + {monitor,Pid} -> + erlang:monitor(process, Pid), + Pid ! ok; + _ -> ok + end, + F() + end), + + Echo = spawn(N, fun F() -> receive {From, Msg} -> From ! Msg, F() end end), + + %% Test 32 MB and 320 MB and test the latency difference of sent messages + Payloads = [{I, <<0:(I * 32 * 1024 * 1024 * 8)>>} || I <- [1,10]], + + IndexTimes = [{I, measure_latency(DataFun, Dropper, Echo, P)} + || {I, P} <- Payloads], + + Times = [ Time || {_I, Time} <- IndexTimes], + + ct:pal("~p",[IndexTimes]), + + case {lists:max(Times), lists:min(Times)} of + {Max, Min} when Max * 0.25 > Min -> + ct:fail({incorrect_latency, IndexTimes}); + _ -> + ok + end. + +measure_latency(DataFun, Dropper, Echo, Payload) -> + + flush(), + + Senders = [spawn_monitor( + fun F() -> + DataFun(Dropper, Payload), + receive + die -> ok + after 0 -> + F() + end + end) || _ <- lists:seq(1,2)], + + [receive + {monitor, _Sender, busy_dist_port, _Info} = M -> + ok + end || _ <- lists:seq(1,10)], + + {TS, _} = + timer:tc(fun() -> + [begin + Echo ! {self(), hello}, + receive hello -> ok end + end || _ <- lists:seq(1,100)] + end), + [begin + Sender ! die, + receive + {'DOWN', Ref, process, _, _} -> + ok + end + end || {Sender, Ref} <- Senders], + TS. + +flush() -> + receive + _ -> + flush() + after 0 -> + ok + end. + -define(COOKIE, ''). -define(DOP_LINK, 1). -define(DOP_SEND, 2). diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl index ca5c93f535..ef4635a6f5 100644 --- a/erts/emulator/test/node_container_SUITE.erl +++ b/erts/emulator/test/node_container_SUITE.erl @@ -71,10 +71,10 @@ init_per_suite(Config) -> end_per_suite(_Config) -> erts_debug:set_internal_state(available_internal_state, true), erts_debug:set_internal_state(node_tab_delayed_delete, -1), %% restore original value - erts_test_util:available_internal_state(false). + erts_test_utils:available_internal_state(false). init_per_testcase(_Case, Config) when is_list(Config) -> - erts_test_util:available_internal_state(true), + erts_test_utils:available_internal_state(true), Config. end_per_testcase(_Case, Config) when is_list(Config) -> @@ -913,9 +913,9 @@ id(X) -> -define(ND_REFS, erts_debug:get_internal_state(node_and_dist_references)). node_container_refc_check(Node) when is_atom(Node) -> - AIS = erts_test_util:available_internal_state(true), + AIS = erts_test_utils:available_internal_state(true), nc_refc_check(Node), - erts_test_util:available_internal_state(AIS). + erts_test_utils:available_internal_state(AIS). nc_refc_check(Node) when is_atom(Node) -> Ref = make_ref(), -- cgit v1.2.3 From 1066040c35e96566e415c50042345fba865f10c8 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Tue, 29 Jan 2019 10:19:47 +0100 Subject: erts: Refactor ErtsSendContext to be ErtsDSigSendContext This commit removed the general send context (which was used very little anyways) and only uses the distributed send context. This will make it easier to use the dist API at the cost of a little bit more code for the local send. --- erts/emulator/beam/bif.c | 173 +++++++-------- erts/emulator/beam/dist.c | 416 +++++++++++++++++++---------------- erts/emulator/beam/dist.h | 201 ++++------------- erts/emulator/beam/erl_node_tables.c | 2 +- erts/emulator/beam/erl_process.c | 32 ++- erts/emulator/beam/external.c | 2 +- 6 files changed, 360 insertions(+), 466 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index eb44d5632a..3cf0a02679 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -184,7 +184,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1) DistEntry *dep; ErtsLink *lnk; int code; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; dep = external_pid_dist_entry(BIF_ARG_1); if (dep == erts_this_dist_entry) @@ -201,9 +201,9 @@ BIF_RETTYPE link_1(BIF_ALIST_1) ldp = erts_link_to_data(lnk); - code = erts_dsig_prepare(&dsd, dep, BIF_P, + code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_RLOCK, 0, 1); + ERTS_DSP_RLOCK, 0, 1, 1); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: @@ -222,7 +222,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1) ASSERT(inserted); (void)inserted; erts_de_runlock(dep); - code = erts_dsig_send_link(&dsd, BIF_P->common.id, BIF_ARG_1); + code = erts_dsig_send_link(&ctx, BIF_P->common.id, BIF_ARG_1); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); ASSERT(code == ERTS_DSIG_SEND_OK); @@ -307,7 +307,7 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip) DistEntry *dep; int code = ERTS_DSIG_SEND_OK; int deleted; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; ASSERT(is_external_pid(to) || is_node_name_atom(to)); @@ -323,8 +323,8 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip) } } - code = erts_dsig_prepare(&dsd, dep, c_p, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_RLOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_RLOCK, 0, 1, 0); deleted = erts_monitor_dist_delete(&mdp->target); @@ -353,8 +353,8 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip) * monitor list since in case of monitor name * the atom is stored there. Yield if necessary. */ - code = erts_dsig_send_demonitor(&dsd, c_p->common.id, - watched, mdp->ref, 0); + code = erts_dsig_send_demonitor(&ctx, c_p->common.id, + watched, mdp->ref); break; } @@ -534,7 +534,7 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2) } if (is_external_pid(target)) { - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; dep = external_pid_dist_entry(target); @@ -552,9 +552,9 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2) BIF_P->common.id, id, name); erts_monitor_tree_insert(&ERTS_P_MONITORS(BIF_P), &mdp->origin); - code = erts_dsig_prepare(&dsd, dep, + code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_RLOCK, 0, 1); + ERTS_DSP_RLOCK, 0, 1, 1); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: @@ -569,7 +569,7 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2) ASSERT(inserted); (void)inserted; erts_de_runlock(dep); - code = erts_dsig_send_monitor(&dsd, BIF_P->common.id, target, ref); + code = erts_dsig_send_monitor(&ctx, BIF_P->common.id, target, ref); break; } @@ -915,7 +915,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) ErtsLinkData *ldp; DistEntry *dep; int code; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; dep = external_pid_dist_entry(BIF_ARG_1); if (dep == erts_this_dist_entry) @@ -933,15 +933,15 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1) else erts_link_release(lnk); - code = erts_dsig_prepare(&dsd, dep, BIF_P, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_NO_LOCK, 0, 1, 0); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: BIF_RET(am_true); case ERTS_DSIG_PREP_PENDING: case ERTS_DSIG_PREP_CONNECTED: - code = erts_dsig_send_unlink(&dsd, BIF_P->common.id, BIF_ARG_1); + code = erts_dsig_send_unlink(&ctx, BIF_P->common.id, BIF_ARG_1); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); break; @@ -1302,18 +1302,11 @@ static BIF_RETTYPE send_exit_signal_bif(Process *c_p, Eterm id, Eterm reason, in ERTS_BIF_PREP_RET(ret_val, am_true); /* Old incarnation of this node... */ else { int code; - ErtsSendContext ctx; - - ctx.suspend = !0; - ctx.connect = !0; - ctx.deref_dep = 0; - ctx.return_term = am_true; - ctx.dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(c_p) * TERM_TO_BINARY_LOOP_FACTOR); - ctx.dss.phase = ERTS_DSIG_SEND_PHASE_INIT; - ctx.dss.from = c_p->common.id; - - code = erts_dsig_prepare(&ctx.dsd, dep, c_p, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_NO_LOCK, 0, 1); + ErtsDSigSendContext ctx; + + code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_NO_LOCK, 0, 0, 1); + switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: @@ -1827,33 +1820,36 @@ ebif_bang_2(BIF_ALIST_2) static Sint remote_send(Process *p, DistEntry *dep, - Eterm to, Eterm full_to, Eterm msg, - ErtsSendContext* ctx) + Eterm to, Eterm node, Eterm full_to, Eterm msg, + Eterm return_term, Eterm *ctxpp, + int connect, int suspend) { Sint res; int code; + ErtsDSigSendContext ctx; ASSERT(is_atom(to) || is_external_pid(to)); - ctx->dep = dep; - code = erts_dsig_prepare(&ctx->dsd, dep, p, ERTS_PROC_LOCK_MAIN, + code = erts_dsig_prepare(&ctx, dep, p, ERTS_PROC_LOCK_MAIN, ERTS_DSP_NO_LOCK, - !ctx->suspend, ctx->connect); + !suspend, 0, connect); + ctx.return_term = return_term; + ctx.node = node; switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: res = SEND_NOCONNECT; break; case ERTS_DSIG_PREP_WOULD_SUSPEND: - ASSERT(!ctx->suspend); + ASSERT(!suspend); res = SEND_YIELD; break; case ERTS_DSIG_PREP_PENDING: case ERTS_DSIG_PREP_CONNECTED: { if (is_atom(to)) - code = erts_dsig_send_reg_msg(to, msg, ctx); + code = erts_dsig_send_reg_msg(&ctx, to, msg); else - code = erts_dsig_send_msg(to, msg, ctx); + code = erts_dsig_send_msg(&ctx, to, msg); /* * Note that reductions have been bumped on calling * process by erts_dsig_send_reg_msg() or @@ -1861,9 +1857,19 @@ static Sint remote_send(Process *p, DistEntry *dep, */ if (code == ERTS_DSIG_SEND_YIELD) res = SEND_YIELD_RETURN; - else if (code == ERTS_DSIG_SEND_CONTINUE) + else if (code == ERTS_DSIG_SEND_CONTINUE) { + erts_set_gc_state(p, 0); + + /* Keep a reference to the dist entry if the + name is an not a pid. */ + if (is_atom(to)) { + erts_ref_dist_entry(ctx.dep); + ctx.deref_dep = 1; + } + + *ctxpp = erts_dsend_export_trap_context(p, &ctx); res = SEND_YIELD_CONTINUE; - else if (code == ERTS_DSIG_SEND_TOO_LRG) + } else if (code == ERTS_DSIG_SEND_TOO_LRG) res = SEND_SYSTEM_LIMIT; else res = 0; @@ -1885,7 +1891,8 @@ static Sint remote_send(Process *p, DistEntry *dep, } static Sint -do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) +do_send(Process *p, Eterm to, Eterm msg, Eterm return_term, Eterm *refp, + Eterm *dist_ctx, int connect, int suspend) { Eterm portid; Port *pt; @@ -1917,7 +1924,8 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) erts_send_error_to_logger(p->group_leader, dsbufp); return 0; } - return remote_send(p, dep, to, to, msg, ctx); + return remote_send(p, dep, to, dep->sysname, to, msg, return_term, + dist_ctx, connect, suspend); } else if (is_atom(to)) { Eterm id = erts_whereis_name_to_id(p, to); @@ -1972,7 +1980,7 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) ret_val = 0; if (pt) { - int ps_flags = ctx->suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND; + int ps_flags = suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND; *refp = NIL; if (IS_TRACED_FL(p, F_TRACE_SEND)) /* trace once only !! */ @@ -1987,12 +1995,12 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) switch (erts_port_command(p, ps_flags, pt, msg, refp)) { case ERTS_PORT_OP_BUSY: /* Nothing has been sent */ - if (ctx->suspend) + if (suspend) erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt); return SEND_YIELD; case ERTS_PORT_OP_BUSY_SCHEDULED: /* Message was sent */ - if (ctx->suspend) { + if (suspend) { erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt); ret_val = SEND_YIELD_RETURN; break; @@ -2063,13 +2071,10 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx) ASSERT(dep != erts_this_dist_entry); deref_dep = 1; } - ctx->dsd.node = tp[2]; - ret = remote_send(p, dep, tp[1], to, msg, ctx); - if (ret == SEND_YIELD_CONTINUE) { - erts_ref_dist_entry(ctx->dep); - ctx->deref_dep = 1; - } + ret = remote_send(p, dep, tp[1], tp[2], to, msg, return_term, + dist_ctx, connect, suspend); + if (deref_dep) erts_deref_dist_entry(dep); return ret; @@ -2108,26 +2113,16 @@ BIF_RETTYPE send_3(BIF_ALIST_3) Eterm l = opts; Sint result; - - DeclareTypedTmpHeap(ErtsSendContext, ctx, BIF_P); + int connect = 1, suspend = 1; + Eterm ctx; ERTS_MSACC_PUSH_STATE_M_X(); - UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P); - - ctx->suspend = !0; - ctx->connect = !0; - ctx->deref_dep = 0; - ctx->return_term = am_ok; - ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); - ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT; - ctx->dss.from = BIF_P->common.id; - while (is_list(l)) { if (CAR(list_val(l)) == am_noconnect) { - ctx->connect = 0; + connect = 0; } else if (CAR(list_val(l)) == am_nosuspend) { - ctx->suspend = 0; + suspend = 0; } else { ERTS_BIF_PREP_ERROR(retval, p, BADARG); goto done; @@ -2144,7 +2139,7 @@ BIF_RETTYPE send_3(BIF_ALIST_3) #endif ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_SEND); - result = do_send(p, to, msg, &ref, ctx); + result = do_send(p, to, msg, am_ok, &ref, &ctx, connect, suspend); ERTS_MSACC_POP_STATE_M_X(); if (result >= 0) { @@ -2157,22 +2152,21 @@ BIF_RETTYPE send_3(BIF_ALIST_3) switch (result) { case SEND_NOCONNECT: - if (ctx->connect) { + if (connect) { ERTS_BIF_PREP_RET(retval, am_ok); } else { ERTS_BIF_PREP_RET(retval, am_noconnect); } break; case SEND_YIELD: - if (ctx->suspend) { - ERTS_BIF_PREP_YIELD3(retval, - bif_export[BIF_send_3], p, to, msg, opts); + if (suspend) { + ERTS_BIF_PREP_YIELD3(retval, bif_export[BIF_send_3], p, to, msg, opts); } else { ERTS_BIF_PREP_RET(retval, am_nosuspend); } break; case SEND_YIELD_RETURN: - if (!ctx->suspend) { + if (!suspend) { ERTS_BIF_PREP_RET(retval, am_nosuspend); break; } @@ -2197,9 +2191,7 @@ BIF_RETTYPE send_3(BIF_ALIST_3) break; case SEND_YIELD_CONTINUE: BUMP_ALL_REDS(p); - erts_set_gc_state(p, 0); - ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, - erts_dsend_export_trap_context(p, ctx)); + ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, ctx); break; default: erts_exit(ERTS_ABORT_EXIT, "send_3 invalid result %d\n", (int)result); @@ -2207,7 +2199,6 @@ BIF_RETTYPE send_3(BIF_ALIST_3) } done: - UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P); return retval; } @@ -2221,14 +2212,14 @@ BIF_RETTYPE send_2(BIF_ALIST_2) static BIF_RETTYPE dsend_continue_trap_1(BIF_ALIST_1) { Binary* bin = erts_magic_ref2bin(BIF_ARG_1); - ErtsSendContext* ctx = (ErtsSendContext*) ERTS_MAGIC_BIN_DATA(bin); + ErtsDSigSendContext *ctx = (ErtsDSigSendContext*) ERTS_MAGIC_BIN_DATA(bin); Sint initial_reds = (Sint) (ERTS_BIF_REDS_LEFT(BIF_P) * TERM_TO_BINARY_LOOP_FACTOR); int result; ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(bin) == erts_dsend_context_dtor); - ctx->dss.reds = initial_reds; - result = erts_dsig_send(&ctx->dsd, &ctx->dss); + ctx->reds = initial_reds; + result = erts_dsig_send(ctx); switch (result) { case ERTS_DSIG_SEND_OK: @@ -2237,7 +2228,7 @@ static BIF_RETTYPE dsend_continue_trap_1(BIF_ALIST_1) break; case ERTS_DSIG_SEND_YIELD: /*SEND_YIELD_RETURN*/ erts_set_gc_state(BIF_P, 1); - if (!ctx->suspend) + if (ctx->no_suspend) BIF_RET(am_nosuspend); ERTS_BIF_YIELD_RETURN(BIF_P, ctx->return_term); @@ -2262,21 +2253,14 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg) Eterm retval; Eterm ref; Sint result; - DeclareTypedTmpHeap(ErtsSendContext, ctx, p); + Eterm ctx; ERTS_MSACC_PUSH_AND_SET_STATE_M_X(ERTS_MSACC_STATE_SEND); - UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p); + #ifdef DEBUG ref = NIL; #endif - ctx->suspend = !0; - ctx->connect = !0; - ctx->deref_dep = 0; - ctx->return_term = msg; - ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); - ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT; - ctx->dss.from = p->common.id; - result = do_send(p, to, msg, &ref, ctx); + result = do_send(p, to, msg, msg, &ref, &ctx, 1, 1); ERTS_MSACC_POP_STATE_M_X(); @@ -2318,9 +2302,7 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg) break; case SEND_YIELD_CONTINUE: BUMP_ALL_REDS(p); - erts_set_gc_state(p, 0); - ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, - erts_dsend_export_trap_context(p, ctx)); + ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, ctx); break; default: erts_exit(ERTS_ABORT_EXIT, "invalid send result %d\n", (int)result); @@ -2328,7 +2310,6 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg) } done: - UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p); return retval; } @@ -4385,21 +4366,21 @@ BIF_RETTYPE erts_internal_group_leader_2(BIF_ALIST_2) if (is_external_pid(BIF_ARG_2)) { DistEntry *dep; int code; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; dep = external_pid_dist_entry(BIF_ARG_2); ERTS_ASSERT(dep); if(dep == erts_this_dist_entry) BIF_ERROR(BIF_P, BADARG); - code = erts_dsig_prepare(&dsd, dep, BIF_P, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_NO_LOCK, 0, 1); + code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_NO_LOCK, 0, 1, 1); switch (code) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: BIF_RET(am_true); case ERTS_DSIG_PREP_PENDING: case ERTS_DSIG_PREP_CONNECTED: - code = erts_dsig_send_group_leader(&dsd, BIF_ARG_1, BIF_ARG_2); + code = erts_dsig_send_group_leader(&ctx, BIF_ARG_1, BIF_ARG_2); if (code == ERTS_DSIG_SEND_YIELD) ERTS_BIF_YIELD_RETURN(BIF_P, am_true); BIF_RET(am_true); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 749760a1b3..7856d8003c 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -177,9 +177,9 @@ static Export *dist_ctrl_put_data_trap; /* forward declarations */ -static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, int force_busy); -static int dsig_send_exit_ctx(ErtsSendContext *ctx, Eterm ctl, Eterm msg); -static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy); +static void erts_schedule_dist_command(Port *, DistEntry *); +static int dsig_send_exit(ErtsDSigSendContext *ctx, Eterm ctl, Eterm msg); +static int dsig_send_ctl(ErtsDSigSendContext *ctx, Eterm ctl); static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm); static void init_nodes_monitors(void); static Sint abort_connection(DistEntry* dep, Uint32 conn_id); @@ -860,20 +860,20 @@ static void free_de_out_queues(DistEntry* dep, ErtsDistOutputBuf *obuf) int erts_dsend_context_dtor(Binary* ctx_bin) { - ErtsSendContext* ctx = ERTS_MAGIC_BIN_DATA(ctx_bin); - switch (ctx->dss.phase) { + ErtsDSigSendContext* ctx = ERTS_MAGIC_BIN_DATA(ctx_bin); + switch (ctx->phase) { case ERTS_DSIG_SEND_PHASE_MSG_SIZE: - DESTROY_SAVED_WSTACK(&ctx->dss.u.sc.wstack); + DESTROY_SAVED_WSTACK(&ctx->u.sc.wstack); break; case ERTS_DSIG_SEND_PHASE_MSG_ENCODE: - DESTROY_SAVED_WSTACK(&ctx->dss.u.ec.wstack); + DESTROY_SAVED_WSTACK(&ctx->u.ec.wstack); break; default:; } - if (ctx->dss.phase >= ERTS_DSIG_SEND_PHASE_ALLOC && ctx->dss.obuf) { + if (ctx->phase >= ERTS_DSIG_SEND_PHASE_ALLOC && ctx->obuf) { int i; - for (i = 0; i < ctx->dss.fragments; i++) - free_dist_obuf(&ctx->dss.obuf[i]); + for (i = 0; i < ctx->fragments; i++) + free_dist_obuf(&ctx->obuf[i]); } if (ctx->deref_dep) erts_deref_dist_entry(ctx->dep); @@ -881,10 +881,10 @@ int erts_dsend_context_dtor(Binary* ctx_bin) return 1; } -Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx) +Eterm erts_dsend_export_trap_context(Process* p, ErtsDSigSendContext* ctx) { struct exported_ctx { - ErtsSendContext ctx; + ErtsDSigSendContext ctx; ErtsAtomCacheMap acm; }; Binary* ctx_bin = erts_create_magic_binary(sizeof(struct exported_ctx), @@ -892,12 +892,12 @@ Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx) struct exported_ctx* dst = ERTS_MAGIC_BIN_DATA(ctx_bin); Eterm* hp = HAlloc(p, ERTS_MAGIC_REF_THING_SIZE); - sys_memcpy(&dst->ctx, ctx, sizeof(ErtsSendContext)); - ASSERT(ctx->dss.ctl == make_tuple(ctx->ctl_heap)); - dst->ctx.dss.ctl = make_tuple(dst->ctx.ctl_heap); - if (ctx->dss.acmp) { - sys_memcpy(&dst->acm, ctx->dss.acmp, sizeof(ErtsAtomCacheMap)); - dst->ctx.dss.acmp = &dst->acm; + sys_memcpy(&dst->ctx, ctx, sizeof(ErtsDSigSendContext)); + ASSERT(ctx->ctl == make_tuple(ctx->ctl_heap)); + dst->ctx.ctl = make_tuple(dst->ctx.ctl_heap); + if (ctx->acmp) { + sys_memcpy(&dst->acm, ctx->acmp, sizeof(ErtsAtomCacheMap)); + dst->ctx.acmp = &dst->acm; } return erts_mk_magic_ref(&hp, &MSO(p), ctx_bin); } @@ -918,78 +918,58 @@ Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx) ** Send a DOP_LINK link message */ int -erts_dsig_send_link(ErtsDSigData *dsdp, Eterm local, Eterm remote) +erts_dsig_send_link(ErtsDSigSendContext *ctx, Eterm local, Eterm remote) { - DeclareTmpHeapNoproc(ctl_heap,4); - Eterm ctl = TUPLE3(&ctl_heap[0], make_small(DOP_LINK), local, remote); - int res; - UseTmpHeapNoproc(4); - - res = dsig_send_ctl(dsdp, ctl, 0); - UnUseTmpHeapNoproc(4); - return res; + Eterm ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_LINK), local, remote); + return dsig_send_ctl(ctx, ctl); } int -erts_dsig_send_unlink(ErtsDSigData *dsdp, Eterm local, Eterm remote) +erts_dsig_send_unlink(ErtsDSigSendContext *ctx, Eterm local, Eterm remote) { - DeclareTmpHeapNoproc(ctl_heap,4); - Eterm ctl = TUPLE3(&ctl_heap[0], make_small(DOP_UNLINK), local, remote); - int res; - - UseTmpHeapNoproc(4); - res = dsig_send_ctl(dsdp, ctl, 0); - UnUseTmpHeapNoproc(4); - return res; + Eterm ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_UNLINK), local, remote); + return dsig_send_ctl(ctx, ctl); } /* A local process that's being monitored by a remote one exits. We send: {DOP_MONITOR_P_EXIT, Local pid or name, Remote pid, ref, reason} */ int -erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm from, Eterm watcher, Eterm watched, +erts_dsig_send_m_exit(ErtsDSigSendContext *ctx, Eterm watcher, Eterm watched, Eterm ref, Eterm reason) { Eterm ctl, msg; - DeclareTmpHeapNoproc(ctl_heap,6); - int res; - if (~dsdp->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { + if (~ctx->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { /* * Receiver does not support DOP_MONITOR_P_EXIT (see dsig_send_monitor) */ return ERTS_DSIG_SEND_OK; } - UseTmpHeapNoproc(6); - - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { - ctl = TUPLE4(&ctl_heap[0], make_small(DOP_PAYLOAD_MONITOR_P_EXIT), + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_MONITOR_P_EXIT), watched, watcher, ref); msg = reason; } else { - ctl = TUPLE5(&ctl_heap[0], make_small(DOP_MONITOR_P_EXIT), + ctl = TUPLE5(&ctx->ctl_heap[0], make_small(DOP_MONITOR_P_EXIT), watched, watcher, ref, reason); msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, from, 1); - UnUseTmpHeapNoproc(6); - return res; + return dsig_send_exit(ctx, ctl, msg); } /* We want to monitor a process (named or unnamed) on another node, we send: {DOP_MONITOR_P, Local pid, Remote pid or name, Ref}, which is exactly what's needed on the other side... */ int -erts_dsig_send_monitor(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, +erts_dsig_send_monitor(ErtsDSigSendContext *ctx, Eterm watcher, Eterm watched, Eterm ref) { Eterm ctl; - DeclareTmpHeapNoproc(ctl_heap,5); - int res; - if (~dsdp->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { + if (~ctx->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { /* * Receiver does not support DOP_MONITOR_P. * Just avoid sending it and by doing that reduce this monitor @@ -999,48 +979,40 @@ erts_dsig_send_monitor(ErtsDSigData *dsdp, Eterm watcher, Eterm watched, return ERTS_DSIG_SEND_OK; } - UseTmpHeapNoproc(5); - ctl = TUPLE4(&ctl_heap[0], + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_MONITOR_P), watcher, watched, ref); - res = dsig_send_ctl(dsdp, ctl, 0); - UnUseTmpHeapNoproc(5); - return res; + return dsig_send_ctl(ctx, ctl); } /* A local process monitoring a remote one wants to stop monitoring, either because of a demonitor bif call or because the local process died. We send {DOP_DEMONITOR_P, Local pid, Remote pid or name, ref} */ int -erts_dsig_send_demonitor(ErtsDSigData *dsdp, Eterm watcher, - Eterm watched, Eterm ref, int force) +erts_dsig_send_demonitor(ErtsDSigSendContext *ctx, Eterm watcher, + Eterm watched, Eterm ref) { Eterm ctl; - DeclareTmpHeapNoproc(ctl_heap,5); - int res; - if (~dsdp->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { + if (~ctx->flags & (DFLAG_DIST_MONITOR | DFLAG_DIST_MONITOR_NAME)) { /* * Receiver does not support DOP_DEMONITOR_P (see dsig_send_monitor) */ return ERTS_DSIG_SEND_OK; } - UseTmpHeapNoproc(5); - ctl = TUPLE4(&ctl_heap[0], + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_DEMONITOR_P), watcher, watched, ref); - res = dsig_send_ctl(dsdp, ctl, force); - UnUseTmpHeapNoproc(5); - return res; + return dsig_send_ctl(ctx, ctl); } -static int can_send_seqtrace_token(ErtsSendContext* ctx, Eterm token) { +static int can_send_seqtrace_token(ErtsDSigSendContext* ctx, Eterm token) { Eterm label; - if (ctx->dsd.flags & DFLAG_BIG_SEQTRACE_LABELS) { + if (ctx->flags & DFLAG_BIG_SEQTRACE_LABELS) { /* The other end is capable of handling arbitrary seq_trace labels. */ return 1; } @@ -1056,11 +1028,11 @@ static int can_send_seqtrace_token(ErtsSendContext* ctx, Eterm token) { } int -erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) +erts_dsig_send_msg(ErtsDSigSendContext* ctx, Eterm remote, Eterm message) { Eterm ctl; Eterm token = NIL; - Process *sender = ctx->dsd.proc; + Process *sender = ctx->c_p; int res; #ifdef USE_VM_PROBES Sint tok_label = 0; @@ -1081,7 +1053,7 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), - "%T", ctx->dsd.dep->sysname); + "%T", ctx->dep->sysname); erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->common.id); erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), @@ -1101,7 +1073,7 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) send_token = (token != NIL && can_send_seqtrace_token(ctx, token)); - if (ctx->dsd.flags & DFLAG_SEND_SENDER) { + if (ctx->flags & DFLAG_SEND_SENDER) { dist_op = make_small(send_token ? DOP_SEND_SENDER_TT : DOP_SEND_SENDER); @@ -1124,21 +1096,18 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx) msize, tok_label, tok_lastcnt, tok_serial); DTRACE7(message_send_remote, sender_name, node_name, receiver_name, msize, tok_label, tok_lastcnt, tok_serial); - ctx->dss.ctl = ctl; - ctx->dss.msg = message; - ctx->dss.force_busy = 0; - ctx->dss.force_encode = 0; - res = erts_dsig_send(&ctx->dsd, &ctx->dss); + ctx->ctl = ctl; + ctx->msg = message; + res = erts_dsig_send(ctx); return res; } int -erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, ErtsSendContext* ctx) +erts_dsig_send_reg_msg(ErtsDSigSendContext* ctx, Eterm remote_name, Eterm message) { Eterm ctl; Eterm token = NIL; - Process *sender = ctx->dsd.proc; - int res; + Process *sender = ctx->c_p; #ifdef USE_VM_PROBES Sint tok_label = 0; Sint tok_lastcnt = 0; @@ -1158,7 +1127,7 @@ erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, ErtsSendContext* ctx) *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), - "%T", ctx->dsd.dep->sysname); + "%T", ctx->dep->sysname); erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->common.id); erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), @@ -1183,24 +1152,19 @@ erts_dsig_send_reg_msg(Eterm remote_name, Eterm message, ErtsSendContext* ctx) msize, tok_label, tok_lastcnt, tok_serial); DTRACE7(message_send_remote, sender_name, node_name, receiver_name, msize, tok_label, tok_lastcnt, tok_serial); - ctx->dss.ctl = ctl; - ctx->dss.msg = message; - ctx->dss.force_busy = 0; - ctx->dss.force_encode = 0; - res = erts_dsig_send(&ctx->dsd, &ctx->dss); - return res; + ctx->ctl = ctl; + ctx->msg = message; + return erts_dsig_send(ctx); } /* local has died, deliver the exit signal to remote */ int -erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, +erts_dsig_send_exit_tt(ErtsDSigSendContext *ctx, Eterm local, Eterm remote, Eterm reason, Eterm token) { Eterm ctl, msg = THE_NON_VALUE; - DeclareTmpHeapNoproc(ctl_heap,6); - int res; #ifdef USE_VM_PROBES - Process *sender = dsdp->proc; + Process *sender = ctx->c_p; Sint tok_label = 0; Sint tok_lastcnt = 0; Sint tok_serial = 0; @@ -1210,31 +1174,29 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, DTRACE_CHARBUF(reason_str, 128); #endif - UseTmpHeapNoproc(6); - - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) msg = reason; if (have_seqtrace(token)) { - seq_trace_update_send(dsdp->proc); + seq_trace_update_send(ctx->c_p); seq_trace_output_exit(token, reason, SEQ_TRACE_SEND, remote, local); - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { - ctl = TUPLE4(&ctl_heap[0], + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_EXIT_TT), local, remote, token); } else - ctl = TUPLE5(&ctl_heap[0], + ctl = TUPLE5(&ctx->ctl_heap[0], make_small(DOP_EXIT_TT), local, remote, token, reason); } else { - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) - ctl = TUPLE3(&ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) + ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); else - ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); } #ifdef USE_VM_PROBES *node_name = *sender_name = *remote_name = '\0'; if (DTRACE_ENABLED(process_exit_signal_remote)) { erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), - "%T", dsdp->dep->sysname); + "%T", ctx->dep->sysname); erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->common.id); erts_snprintf(remote_name, sizeof(DTRACE_CHARBUF_NAME(remote_name)), @@ -1250,39 +1212,30 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #endif DTRACE7(process_exit_signal_remote, sender_name, node_name, remote_name, reason_str, tok_label, tok_lastcnt, tok_serial); - res = dsig_send_exit(dsdp, ctl, msg, local, 1); - UnUseTmpHeapNoproc(6); - return res; + return dsig_send_exit(ctx, ctl, msg); } int -erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm from, Eterm local, Eterm remote, Eterm reason) +erts_dsig_send_exit(ErtsDSigSendContext *ctx, Eterm local, Eterm remote, Eterm reason) { - DeclareTmpHeapNoproc(ctl_heap,5); - int res; - Eterm ctl, msg = dsdp->dep->flags & DFLAG_EXIT_PAYLOAD ? reason : THE_NON_VALUE; - - UseTmpHeapNoproc(5); + Eterm ctl, msg = ctx->dep->flags & DFLAG_EXIT_PAYLOAD ? reason : THE_NON_VALUE; - if (dsdp->dep->flags & DFLAG_EXIT_PAYLOAD) { - ctl = TUPLE3(&ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) { + ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_EXIT), local, remote); msg = reason; } else { - ctl = TUPLE4(&ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); + ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_EXIT), local, remote, reason); msg = THE_NON_VALUE; } - res = dsig_send_exit(dsdp, ctl, msg, from, 1); - UnUseTmpHeapNoproc(5); - return res; + return dsig_send_exit(ctx, ctl, msg); } int -erts_dsig_send_exit2(ErtsSendContext *ctx, Eterm local, Eterm remote, Eterm reason) +erts_dsig_send_exit2(ErtsDSigSendContext *ctx, Eterm local, Eterm remote, Eterm reason) { - int res; Eterm ctl, msg; - if (ctx->dsd.dep->flags & DFLAG_EXIT_PAYLOAD) { + if (ctx->dep->flags & DFLAG_EXIT_PAYLOAD) { ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_PAYLOAD_EXIT2), local, remote); msg = reason; @@ -1292,25 +1245,19 @@ erts_dsig_send_exit2(ErtsSendContext *ctx, Eterm local, Eterm remote, Eterm reas msg = THE_NON_VALUE; } - res = dsig_send_exit_ctx(ctx, ctl, msg); - return res; + return dsig_send_exit(ctx, ctl, msg); } int -erts_dsig_send_group_leader(ErtsDSigData *dsdp, Eterm leader, Eterm remote) +erts_dsig_send_group_leader(ErtsDSigSendContext *ctx, Eterm leader, Eterm remote) { - DeclareTmpHeapNoproc(ctl_heap,4); - int res; Eterm ctl; - UseTmpHeapNoproc(4); - ctl = TUPLE3(&ctl_heap[0], + ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_GROUP_LEADER), leader, remote); - res = dsig_send_ctl(dsdp, ctl, 0); - UnUseTmpHeapNoproc(4); - return res; + return dsig_send_ctl(ctx, ctl); } struct dist_sequences { @@ -1666,7 +1613,7 @@ int erts_net_message(Port *prt, switch (type = unsigned_val(tuple[1])) { case DOP_LINK: { - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; if (tuple_arity != 3) { @@ -1704,9 +1651,9 @@ int erts_net_message(Port *prt, erts_link_release_both(ldp); } - code = erts_dsig_prepare(&dsd, dep, NULL, 0, ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, NULL, 0, ERTS_DSP_NO_LOCK, 1, 1, 0); if (code == ERTS_DSIG_PREP_CONNECTED) { - code = erts_dsig_send_exit(&dsd, to, to, from, am_noproc); + code = erts_dsig_send_exit(&ctx, to, from, am_noproc); ASSERT(code == ERTS_DSIG_SEND_OK); } @@ -1739,7 +1686,7 @@ int erts_net_message(Port *prt, /* A remote process wants to monitor us, we get: {DOP_MONITOR_P, Remote pid, local pid or name, ref} */ Eterm pid, name; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; if (tuple_arity != 4) { @@ -1794,10 +1741,9 @@ int erts_net_message(Port *prt, } - code = erts_dsig_prepare(&dsd, dep, NULL, 0, ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, NULL, 0, ERTS_DSP_NO_LOCK, 1, 1, 0); if (code == ERTS_DSIG_PREP_CONNECTED) { - code = erts_dsig_send_m_exit(&dsd, pid, watcher, watched, ref, - am_noproc); + code = erts_dsig_send_m_exit(&ctx, watcher, watched, ref, am_noproc); ASSERT(code == ERTS_DSIG_SEND_OK); } @@ -2152,45 +2098,21 @@ data_error: return -1; } -static int dsig_send_exit(ErtsDSigData* dsdp, Eterm ctl, Eterm msg, Eterm from, int force_busy) +static int dsig_send_exit(ErtsDSigSendContext *ctx, Eterm ctl, Eterm msg) { - struct erts_dsig_send_context ctx; - int ret; - ctx.ctl = ctl; - ctx.msg = msg; - ctx.from = from; - ctx.force_busy = force_busy; - ctx.force_encode = force_busy; - ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; - ctx.reds = 1; /* provoke assert below (no reduction count with force_encode) */ - ret = erts_dsig_send(dsdp, &ctx); - ASSERT(ret != ERTS_DSIG_SEND_CONTINUE); - return ret; + ctx->ctl = ctl; + ctx->msg = msg; + return erts_dsig_send(ctx); } -static int dsig_send_exit_ctx(ErtsSendContext *ctx, Eterm ctl, Eterm msg) +static int dsig_send_ctl(ErtsDSigSendContext *ctx, Eterm ctl) { int ret; - ctx->dss.ctl = ctl; - ctx->dss.msg = msg; - ctx->dss.force_busy = 0; - ctx->dss.force_encode = 0; - ret = erts_dsig_send(&ctx->dsd, &ctx->dss); - return ret; -} - -static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy) -{ - struct erts_dsig_send_context ctx; - int ret; - ctx.ctl = ctl; - ctx.msg = THE_NON_VALUE; - ctx.from = THE_NON_VALUE; - ctx.force_busy = force_busy; - ctx.force_encode = 1; - ctx.phase = ERTS_DSIG_SEND_PHASE_INIT; - ctx.reds = 1; /* provoke assert below (no reduction count without msg) */ - ret = erts_dsig_send(dsdp, &ctx); + ctx->ctl = ctl; + ctx->msg = THE_NON_VALUE; + ctx->from = THE_NON_VALUE; + ctx->reds = 1; /* provoke assert below (no reduction count without msg) */ + ret = erts_dsig_send(ctx); ASSERT(ret != ERTS_DSIG_SEND_CONTINUE); return ret; } @@ -2221,7 +2143,117 @@ notify_dist_data(Process *c_p, Eterm pid) } int -erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) +erts_dsig_prepare(ErtsDSigSendContext *ctx, + DistEntry *dep, + Process *proc, + ErtsProcLocks proc_locks, + ErtsDSigPrepLock dspl, + int no_suspend, + int no_trap, + int connect) +{ + int res; + + if (!erts_is_alive) + return ERTS_DSIG_PREP_NOT_ALIVE; + if (!dep) { + ASSERT(!connect); + return ERTS_DSIG_PREP_NOT_CONNECTED; + } + +#ifdef ERTS_ENABLE_LOCK_CHECK + if (connect) { + erts_proc_lc_might_unlock(proc, proc_locks); + } +#endif + +retry: + erts_de_rlock(dep); + + if (dep->state == ERTS_DE_STATE_CONNECTED) { + res = ERTS_DSIG_PREP_CONNECTED; + } + else if (dep->state == ERTS_DE_STATE_PENDING) { + res = ERTS_DSIG_PREP_PENDING; + } + else if (dep->state == ERTS_DE_STATE_EXITING) { + res = ERTS_DSIG_PREP_NOT_CONNECTED; + goto fail; + } + else if (connect) { + ASSERT(dep->state == ERTS_DE_STATE_IDLE); + erts_de_runlock(dep); + if (!erts_auto_connect(dep, proc, proc_locks)) { + return ERTS_DSIG_PREP_NOT_ALIVE; + } + goto retry; + } + else { + ASSERT(dep->state == ERTS_DE_STATE_IDLE); + res = ERTS_DSIG_PREP_NOT_CONNECTED; + goto fail; + } + + if (no_suspend) { + if (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY) { + res = ERTS_DSIG_PREP_WOULD_SUSPEND; + goto fail; + } + } + + ctx->c_p = proc; + ctx->dep = dep; + ctx->deref_dep = 0; + ctx->cid = dep->cid; + ctx->connection_id = dep->connection_id; + ctx->no_suspend = no_suspend; + ctx->no_trap = no_trap; + ctx->flags = dep->flags; + ctx->return_term = am_true; + ctx->phase = ERTS_DSIG_SEND_PHASE_INIT; + ctx->from = proc ? proc->common.id : am_undefined; + ctx->reds = no_trap ? 1 : (Sint) (ERTS_BIF_REDS_LEFT(proc) * TERM_TO_BINARY_LOOP_FACTOR); + if (dspl == ERTS_DSP_NO_LOCK) + erts_de_runlock(dep); + return res; + + fail: + erts_de_runlock(dep); + return res; +} + +static +void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry) +{ + DistEntry *dep; + Eterm id; + + if (prt) { + ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); + ASSERT((erts_atomic32_read_nob(&prt->state) + & ERTS_PORT_SFLGS_DEAD) == 0); + + dep = (DistEntry*) erts_prtsd_get(prt, ERTS_PRTSD_DIST_ENTRY); + ASSERT(dep); + id = prt->common.id; + } + else { + ASSERT(dist_entry); + ERTS_LC_ASSERT(erts_lc_rwmtx_is_rlocked(&dist_entry->rwmtx) + || erts_lc_rwmtx_is_rwlocked(&dist_entry->rwmtx)); + ASSERT(is_internal_port(dist_entry->cid)); + + dep = dist_entry; + id = dep->cid; + } + + if (!erts_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1)) + erts_port_task_schedule(id, &dep->dist_cmd, ERTS_PORT_TASK_DIST_CMD); +} + + +int +erts_dsig_send(ErtsDSigSendContext *ctx) { int retval; Sint initial_reds = ctx->reds; @@ -2230,11 +2262,13 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) while (1) { switch (ctx->phase) { case ERTS_DSIG_SEND_PHASE_INIT: - ctx->flags = dsdp->flags; - ctx->c_p = dsdp->proc; + ctx->flags = ctx->flags; + ctx->c_p = ctx->c_p; - if (!ctx->c_p || dsdp->no_suspend) - ctx->force_busy = 1; + if (!ctx->c_p) { + ctx->no_trap = 1; + ctx->no_suspend = 1; + } ERTS_LC_ASSERT(!ctx->c_p || (ERTS_PROC_LOCK_MAIN @@ -2274,7 +2308,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_SIZE; case ERTS_DSIG_SEND_PHASE_MSG_SIZE: - if (!ctx->force_encode) { + if (!ctx->no_trap) { if (erts_encode_dist_ext_size_int(ctx->msg, ctx, &ctx->data_size)) { retval = ERTS_DSIG_SEND_CONTINUE; goto done; @@ -2326,7 +2360,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_ENCODE; case ERTS_DSIG_SEND_PHASE_MSG_ENCODE: - if (!ctx->force_encode) { + if (!ctx->no_trap) { if (erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, &ctx->u.ec, &ctx->reds)) { retval = ERTS_DSIG_SEND_CONTINUE; @@ -2397,7 +2431,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) for (; i < ctx->fragments; i++) { free_dist_obuf(&ctx->obuf[i]); } - if (!ctx->force_encode && !ctx->force_busy) + if (!ctx->no_trap && !ctx->no_suspend) ctx->reds -= ctx->fragments; ctx->fragments = fin_fragments + 1; } @@ -2414,7 +2448,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) * Signal encoded; now verify that the connection still exists, * and if so enqueue the signal and schedule it for send. */ - DistEntry *dep = dsdp->dep; + DistEntry *dep = ctx->dep; int suspended = 0; int resume = 0; int i; @@ -2422,7 +2456,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) cid = dep->cid; if (dep->state == ERTS_DE_STATE_EXITING || dep->state == ERTS_DE_STATE_IDLE - || dep->connection_id != dsdp->connection_id) { + || dep->connection_id != ctx->connection_id) { /* Not the same connection as when we started; drop message... */ erts_de_runlock(dep); for (i = 0; i < ctx->fragments; i++) @@ -2443,20 +2477,20 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) for (fragments = 0, obsz = 0; fragments < ctx->fragments && ((ctx->reds > 0 && (qsize + obsz) < erts_dist_buf_busy_limit) || - ctx->force_encode || ctx->force_busy); + ctx->no_trap || ctx->no_suspend); fragments++) { #ifdef DEBUG int reds = 100; #else int reds = 10; #endif - if (!ctx->force_encode && !ctx->force_busy) + if (!ctx->no_trap && !ctx->no_suspend) ctx->reds -= reds; obsz += size_obuf(&ctx->obuf[fragments]); } ASSERT(fragments == ctx->fragments || - (!ctx->force_encode && !ctx->force_busy)); + (!ctx->no_trap && !ctx->no_suspend)); erts_mtx_lock(&dep->qlock); qsize = erts_atomic_add_read_nob(&dep->qsize, (erts_aint_t) obsz); @@ -2477,7 +2511,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) /* else: requester will send itself the message... */ qflgs &= ~ERTS_DE_QFLG_REQ_INFO; } - if (!ctx->force_busy && (qflgs & ERTS_DE_QFLG_BUSY)) { + if (!ctx->no_suspend && (qflgs & ERTS_DE_QFLG_BUSY)) { erts_mtx_unlock(&dep->qlock); plp = erts_proclist_create(ctx->c_p); @@ -2506,7 +2540,7 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx) ctx->obuf = &ctx->obuf[fragments]; } - if (!ctx->force_busy) { + if (!ctx->no_suspend) { qflgs = erts_atomic32_read_nob(&dep->qflgs); if (!(qflgs & ERTS_DE_QFLG_BUSY)) { if (suspended) @@ -4352,16 +4386,16 @@ monitor_node(Process* p, Eterm Node, Eterm Bool, Eterm Options) } case am_true: { - ErtsDSigData dsd; - dsd.node = Node; + ErtsDSigSendContext ctx; + ctx.node = Node; dep = erts_find_or_insert_dist_entry(Node); if (dep == erts_this_dist_entry) break; - switch (erts_dsig_prepare(&dsd, dep, p, + switch (erts_dsig_prepare(&ctx, dep, p, ERTS_PROC_LOCK_MAIN, - ERTS_DSP_RLOCK, 0, async_connect)) { + ERTS_DSP_RLOCK, 0, 0, async_connect)) { case ERTS_DSIG_PREP_NOT_ALIVE: case ERTS_DSIG_PREP_NOT_CONNECTED: /* Trap to either send 'nodedown' or do passive connection attempt */ diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index 8ea214a0f2..c4bb967592 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -142,16 +142,6 @@ typedef enum { } ErtsDSigPrepLock; -typedef struct { - Process *proc; - DistEntry *dep; - Eterm node; /* used if dep == NULL */ - Eterm cid; - Eterm connection_id; - int no_suspend; - Uint32 flags; -} ErtsDSigData; - /* Must be larger or equal to 16 */ #ifdef DEBUG #define ERTS_DIST_FRAGMENT_SIZE 16 @@ -182,124 +172,6 @@ extern int erts_is_alive; /* Pending connection; signals can be enqueued */ #define ERTS_DSIG_PREP_PENDING 4 -ERTS_GLB_INLINE int erts_dsig_prepare(ErtsDSigData *, - DistEntry*, - Process *, - ErtsProcLocks, - ErtsDSigPrepLock, - int, - int); - -ERTS_GLB_INLINE -void erts_schedule_dist_command(Port *, DistEntry *); - -int erts_auto_connect(DistEntry* dep, Process *proc, ErtsProcLocks proc_locks); - -#if ERTS_GLB_INLINE_INCL_FUNC_DEF - -ERTS_GLB_INLINE int -erts_dsig_prepare(ErtsDSigData *dsdp, - DistEntry *dep, - Process *proc, - ErtsProcLocks proc_locks, - ErtsDSigPrepLock dspl, - int no_suspend, - int connect) -{ - int res; - - if (!erts_is_alive) - return ERTS_DSIG_PREP_NOT_ALIVE; - if (!dep) { - ASSERT(!connect); - return ERTS_DSIG_PREP_NOT_CONNECTED; - } - -#ifdef ERTS_ENABLE_LOCK_CHECK - if (connect) { - erts_proc_lc_might_unlock(proc, proc_locks); - } -#endif - -retry: - erts_de_rlock(dep); - - if (dep->state == ERTS_DE_STATE_CONNECTED) { - res = ERTS_DSIG_PREP_CONNECTED; - } - else if (dep->state == ERTS_DE_STATE_PENDING) { - res = ERTS_DSIG_PREP_PENDING; - } - else if (dep->state == ERTS_DE_STATE_EXITING) { - res = ERTS_DSIG_PREP_NOT_CONNECTED; - goto fail; - } - else if (connect) { - ASSERT(dep->state == ERTS_DE_STATE_IDLE); - erts_de_runlock(dep); - if (!erts_auto_connect(dep, proc, proc_locks)) { - return ERTS_DSIG_PREP_NOT_ALIVE; - } - goto retry; - } - else { - ASSERT(dep->state == ERTS_DE_STATE_IDLE); - res = ERTS_DSIG_PREP_NOT_CONNECTED; - goto fail; - } - - if (no_suspend) { - if (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY) { - res = ERTS_DSIG_PREP_WOULD_SUSPEND; - goto fail; - } - } - dsdp->proc = proc; - dsdp->dep = dep; - dsdp->cid = dep->cid; - dsdp->connection_id = dep->connection_id; - dsdp->no_suspend = no_suspend; - dsdp->flags = dep->flags; - if (dspl == ERTS_DSP_NO_LOCK) - erts_de_runlock(dep); - return res; - - fail: - erts_de_runlock(dep); - return res; -} - -ERTS_GLB_INLINE -void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry) -{ - DistEntry *dep; - Eterm id; - - if (prt) { - ERTS_LC_ASSERT(erts_lc_is_port_locked(prt)); - ASSERT((erts_atomic32_read_nob(&prt->state) - & ERTS_PORT_SFLGS_DEAD) == 0); - - dep = (DistEntry*) erts_prtsd_get(prt, ERTS_PRTSD_DIST_ENTRY); - ASSERT(dep); - id = prt->common.id; - } - else { - ASSERT(dist_entry); - ERTS_LC_ASSERT(erts_lc_rwmtx_is_rlocked(&dist_entry->rwmtx) - || erts_lc_rwmtx_is_rwlocked(&dist_entry->rwmtx)); - ASSERT(is_internal_port(dist_entry->cid)); - - dep = dist_entry; - id = dep->cid; - } - - if (!erts_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1)) - erts_port_task_schedule(id, &dep->dist_cmd, ERTS_PORT_TASK_DIST_CMD); -} - -#endif - #ifdef DEBUG #define ERTS_DBG_CHK_NO_DIST_LNK(D, R, L) \ erts_dbg_chk_no_dist_proc_link((D), (R), (L)) @@ -363,15 +235,26 @@ enum erts_dsig_send_phase { ERTS_DSIG_SEND_PHASE_SEND }; -struct erts_dsig_send_context { - enum erts_dsig_send_phase phase; - Sint reds; +typedef struct erts_dsig_send_context { + int connect; + int no_suspend; + int no_trap; Eterm ctl; Eterm msg; Eterm from; - int force_busy; - int force_encode; + Eterm ctl_heap[6]; + Eterm return_term; + + DistEntry *dep; + Eterm node; /* used if dep == NULL */ + Eterm cid; + Eterm connection_id; + int deref_dep; + + enum erts_dsig_send_phase phase; + Sint reds; + Uint32 max_finalize_prepend; Uint data_size, dhdr_ext_size; ErtsAtomCacheMap *acmp; @@ -383,20 +266,8 @@ struct erts_dsig_send_context { TTBSizeContext sc; TTBEncodeContext ec; }u; -}; -typedef struct { - int suspend; - int connect; - - Eterm ctl_heap[6]; - ErtsDSigData dsd; - DistEntry *dep; - int deref_dep; - struct erts_dsig_send_context dss; - - Eterm return_term; -}ErtsSendContext; +} ErtsDSigSendContext; typedef struct dist_sequences DistSeqNode; @@ -408,21 +279,21 @@ typedef struct dist_sequences DistSeqNode; #define ERTS_DSIG_SEND_CONTINUE 2 #define ERTS_DSIG_SEND_TOO_LRG 3 -extern int erts_dsig_send_link(ErtsDSigData *, Eterm, Eterm); -extern int erts_dsig_send_msg(Eterm, Eterm, ErtsSendContext*); -extern int erts_dsig_send_exit_tt(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); -extern int erts_dsig_send_unlink(ErtsDSigData *, Eterm, Eterm); -extern int erts_dsig_send_reg_msg(Eterm, Eterm, ErtsSendContext*); -extern int erts_dsig_send_group_leader(ErtsDSigData *, Eterm, Eterm); -extern int erts_dsig_send_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm); -extern int erts_dsig_send_exit2(ErtsSendContext *, Eterm, Eterm, Eterm); -extern int erts_dsig_send_demonitor(ErtsDSigData *, Eterm, Eterm, Eterm, int); -extern int erts_dsig_send_monitor(ErtsDSigData *, Eterm, Eterm, Eterm); -extern int erts_dsig_send_m_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm, Eterm); - -extern int erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx); +extern int erts_dsig_send_msg(ErtsDSigSendContext*, Eterm, Eterm); +extern int erts_dsig_send_reg_msg(ErtsDSigSendContext*, Eterm, Eterm); +extern int erts_dsig_send_link(ErtsDSigSendContext *, Eterm, Eterm); +extern int erts_dsig_send_exit_tt(ErtsDSigSendContext *, Eterm, Eterm, Eterm, Eterm); +extern int erts_dsig_send_unlink(ErtsDSigSendContext *, Eterm, Eterm); +extern int erts_dsig_send_group_leader(ErtsDSigSendContext *, Eterm, Eterm); +extern int erts_dsig_send_exit(ErtsDSigSendContext *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_exit2(ErtsDSigSendContext *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_demonitor(ErtsDSigSendContext *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_monitor(ErtsDSigSendContext *, Eterm, Eterm, Eterm); +extern int erts_dsig_send_m_exit(ErtsDSigSendContext *, Eterm, Eterm, Eterm, Eterm); + +extern int erts_dsig_send(ErtsDSigSendContext *dsdp); extern int erts_dsend_context_dtor(Binary*); -extern Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx); +extern Eterm erts_dsend_export_trap_context(Process* p, ErtsDSigSendContext* ctx); extern int erts_dist_command(Port *prt, int reds); extern void erts_dist_port_not_busy(Port *prt); @@ -436,4 +307,14 @@ extern void erts_dist_seq_tree_foreach( DistEntry *dep, int (*func)(ErtsDistExternal *, void*, Sint), void *args); +extern int erts_dsig_prepare(ErtsDSigSendContext *, + DistEntry*, + Process *, + ErtsProcLocks, + ErtsDSigPrepLock, + int, + int, + int); + +int erts_auto_connect(DistEntry* dep, Process *proc, ErtsProcLocks proc_locks); #endif diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index ede9f092e9..b301e5d56a 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -1516,7 +1516,7 @@ insert_offheap(ErlOffHeap *oh, int type, Eterm id) } } else if (IsSendCtxBinary(u.mref->mb)) { - ErtsSendContext* ctx = ERTS_MAGIC_BIN_DATA(u.mref->mb); + ErtsDSigSendContext* ctx = ERTS_MAGIC_BIN_DATA(u.mref->mb); if (ctx->deref_dep) insert_dist_entry(ctx->dep, type, id, 0); } diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 837b3f4ace..422f6a51d9 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -12085,7 +12085,7 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) case ERTS_MON_TYPE_DIST_PROC: { ErtsMonLnkDist *dist; DistEntry *dep; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; Eterm watcher; Eterm watched; @@ -12104,14 +12104,13 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) ASSERT(dep); dist = ((ErtsMonitorDataExtended *) mdp)->dist; ASSERT(dist); - code = erts_dsig_prepare(&dsd, dep, NULL, 0, - ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, NULL, 0, + ERTS_DSP_NO_LOCK, 1, 1, 0); switch (code) { case ERTS_DSIG_PREP_CONNECTED: case ERTS_DSIG_PREP_PENDING: - if (dist->connection_id == dsd.connection_id) { - code = erts_dsig_send_m_exit(&dsd, - c_p->common.id, + if (dist->connection_id == ctx.connection_id) { + code = erts_dsig_send_m_exit(&ctx, watcher, watched, mdp->ref, @@ -12164,7 +12163,7 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) case ERTS_MON_TYPE_DIST_PROC: { ErtsMonLnkDist *dist; DistEntry *dep; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; Eterm watched; @@ -12181,17 +12180,16 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) ASSERT(is_external_pid(watched)); dep = external_pid_dist_entry(watched); } - code = erts_dsig_prepare(&dsd, dep, NULL, 0, - ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, NULL, 0, + ERTS_DSP_NO_LOCK, 1, 1, 0); switch (code) { case ERTS_DSIG_PREP_CONNECTED: case ERTS_DSIG_PREP_PENDING: - if (dist->connection_id == dsd.connection_id) { - code = erts_dsig_send_demonitor(&dsd, + if (dist->connection_id == ctx.connection_id) { + code = erts_dsig_send_demonitor(&ctx, c_p->common.id, watched, - mdp->ref, - 1); + mdp->ref); ASSERT(code == ERTS_DSIG_SEND_OK); } default: @@ -12247,7 +12245,7 @@ erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds) DistEntry *dep; ErtsMonLnkDist *dist; ErtsLink *dlnk; - ErtsDSigData dsd; + ErtsDSigSendContext ctx; int code; dlnk = erts_link_to_other(lnk, &ldp); @@ -12261,12 +12259,12 @@ erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds) if (!erts_link_dist_delete(dlnk)) ldp = NULL; - code = erts_dsig_prepare(&dsd, dep, c_p, 0, ERTS_DSP_NO_LOCK, 0, 0); + code = erts_dsig_prepare(&ctx, dep, c_p, 0, ERTS_DSP_NO_LOCK, 1, 1, 0); switch (code) { case ERTS_DSIG_PREP_CONNECTED: case ERTS_DSIG_PREP_PENDING: - if (dist->connection_id == dsd.connection_id) { - code = erts_dsig_send_exit_tt(&dsd, + if (dist->connection_id == ctx.connection_id) { + code = erts_dsig_send_exit_tt(&ctx, c_p->common.id, lnk->other.item, reason, diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 84e6e0d6fd..988ce242c4 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -620,7 +620,7 @@ int erts_encode_dist_ext_size(Eterm term, Uint32 flags, ErtsAtomCacheMap *acmp, } } -int erts_encode_dist_ext_size_int(Eterm term, struct erts_dsig_send_context* ctx, Uint* szp) +int erts_encode_dist_ext_size_int(Eterm term, ErtsDSigSendContext *ctx, Uint* szp) { Uint sz; if (encode_size_struct_int(&ctx->u.sc, ctx->acmp, term, ctx->flags, &ctx->reds, &sz)) { -- cgit v1.2.3 From 2bf27ec51e331371412576a9a9a67353109109ad Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Thu, 31 Jan 2019 10:49:03 +0100 Subject: erts: Add ERL_NODE_BOOKKEEP to node tables refc --- erts/emulator/beam/beam_load.c | 3 +- erts/emulator/beam/bif.c | 19 +++++---- erts/emulator/beam/copy.c | 6 +-- erts/emulator/beam/erl_db_util.c | 2 +- erts/emulator/beam/erl_gc.c | 24 ++++++++++-- erts/emulator/beam/erl_message.c | 2 +- erts/emulator/beam/erl_node_tables.c | 41 ++++++++++++++++---- erts/emulator/beam/erl_node_tables.h | 69 +++++++++++++++++++++++++++++++-- erts/emulator/beam/erl_proc_sig_queue.c | 5 ++- erts/emulator/beam/external.c | 10 ++--- erts/emulator/beam/utils.c | 2 +- 11 files changed, 147 insertions(+), 36 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index 7ff55e8927..e9e294cd59 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -6108,7 +6108,8 @@ erts_release_literal_area(ErtsLiteralArea* literal_area) } default: ASSERT(is_external_header(oh->thing_word)); - erts_deref_node_entry(((ExternalThing*)oh)->node); + erts_deref_node_entry(((ExternalThing*)oh)->node, + make_boxed(&oh->thing_word)); } oh = oh->next; } diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index 3cf0a02679..a4c7af9a24 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -4063,10 +4063,12 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1) if (is_nil(dep->cid)) goto bad; - enp = erts_find_or_insert_node(dep->sysname, dep->creation); + etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1); + + enp = erts_find_or_insert_node(dep->sysname, dep->creation, + make_boxed(&etp->header)); ASSERT(enp != erts_this_node); - etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1); etp->header = make_external_pid_header(1); etp->next = MSO(BIF_P).first; etp->node = enp; @@ -4130,10 +4132,11 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1) if (is_nil(dep->cid)) goto bad; - enp = erts_find_or_insert_node(dep->sysname, dep->creation); + etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1); + enp = erts_find_or_insert_node(dep->sysname, dep->creation, + make_boxed(&etp->header)); ASSERT(enp != erts_this_node); - etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1); etp->header = make_external_port_header(1); etp->next = MSO(BIF_P).first; etp->node = enp; @@ -4236,9 +4239,6 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1) if (is_nil(dep->cid)) goto bad; - enp = erts_find_or_insert_node(dep->sysname, dep->creation); - ASSERT(enp != erts_this_node); - hsz = EXTERNAL_THING_HEAD_SIZE; #if defined(ARCH_64) hsz += n/2 + 1; @@ -4247,6 +4247,11 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1) #endif etp = (ExternalThing *) HAlloc(BIF_P, hsz); + + enp = erts_find_or_insert_node(dep->sysname, dep->creation, + make_boxed(&etp->header)); + ASSERT(enp != erts_this_node); + etp->header = make_external_ref_header(n/2); etp->next = BIF_P->off_heap.first; etp->node = enp; diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c index e7bd046e18..db74b06cc5 100644 --- a/erts/emulator/beam/copy.c +++ b/erts/emulator/beam/copy.c @@ -854,7 +854,7 @@ Eterm copy_struct_x(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap, Uint case EXTERNAL_REF_SUBTAG: { ExternalThing *etp = (ExternalThing *) objp; - erts_refc_inc(&etp->node->refc, 2); + erts_ref_node_entry(etp->node, 2, make_boxed(htop)); } L_off_heap_node_container_common: { @@ -1660,7 +1660,7 @@ Uint copy_shared_perform(Eterm obj, Uint size, erts_shcopy_t *info, case EXTERNAL_REF_SUBTAG: { ExternalThing *etp = (ExternalThing *) ptr; - erts_refc_inc(&etp->node->refc, 2); + erts_ref_node_entry(etp->node, 2, make_boxed(hp)); } off_heap_node_container_common: { @@ -1866,7 +1866,7 @@ Eterm copy_shallow(Eterm* ERTS_RESTRICT ptr, Uint sz, Eterm** hpp, case EXTERNAL_REF_SUBTAG: { ExternalThing* etp = (ExternalThing *) (tp-1); - erts_refc_inc(&etp->node->refc, 2); + erts_ref_node_entry(etp->node, 2, make_boxed(hp-1)); } off_heap_common: { diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c index ec7442aeeb..1ea7074d21 100644 --- a/erts/emulator/beam/erl_db_util.c +++ b/erts/emulator/beam/erl_db_util.c @@ -3312,7 +3312,7 @@ void db_cleanup_offheap_comp(DbTerm* obj) default: ASSERT(is_external_header(u.hdr->thing_word)); ASSERT(u.pb != &tmp); - erts_deref_node_entry(u.ext->node); + erts_deref_node_entry(u.ext->node, make_boxed(u.ep)); break; } } diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c index 3a50b294d1..9317850d96 100644 --- a/erts/emulator/beam/erl_gc.c +++ b/erts/emulator/beam/erl_gc.c @@ -1303,7 +1303,8 @@ erts_garbage_collect_literals(Process* p, Eterm* literals, ExternalThing *etp; ASSERT(is_external_header(ptr->thing_word)); etp = (ExternalThing *) ptr; - erts_refc_inc(&etp->node->refc, 1); + erts_ref_node_entry(etp->node, 1, + make_boxed(&oh->thing_word)); break; } } @@ -2836,7 +2837,11 @@ sweep_off_heap(Process *p, int fullsweep) while (ptr) { if (IS_MOVED_BOXED(ptr->thing_word)) { ASSERT(!ErtsInArea(ptr, oheap, oheap_sz)); - *prev = ptr = (struct erl_off_heap_header*) boxed_val(ptr->thing_word); + if (is_external_header(((struct erl_off_heap_header*) boxed_val(ptr->thing_word))->thing_word)) + erts_node_bookkeep(((ExternalThing*)ptr)->node, + make_boxed(&ptr->thing_word), + ERL_NODE_DEC); + *prev = ptr = (struct erl_off_heap_header*) boxed_val(ptr->thing_word); ASSERT(!IS_MOVED_BOXED(ptr->thing_word)); switch (ptr->thing_word) { case HEADER_PROC_BIN: { @@ -2863,6 +2868,11 @@ sweep_off_heap(Process *p, int fullsweep) /* fall through... */ } default: + if (is_external_header(ptr->thing_word)) { + erts_node_bookkeep(((ExternalThing*)ptr)->node, + make_boxed(&ptr->thing_word), + ERL_NODE_INC); + } prev = &ptr->next; ptr = ptr->next; } @@ -2896,7 +2906,8 @@ sweep_off_heap(Process *p, int fullsweep) } default: ASSERT(is_external_header(ptr->thing_word)); - erts_deref_node_entry(((ExternalThing*)ptr)->node); + erts_deref_node_entry(((ExternalThing*)ptr)->node, + make_boxed(&ptr->thing_word)); } *prev = ptr = ptr->next; } @@ -3029,6 +3040,13 @@ offset_heap(Eterm* hp, Uint sz, Sint offs, char* area, Uint area_size) { struct erl_off_heap_header* oh = (struct erl_off_heap_header*) hp; + if (is_external_header(oh->thing_word)) { + erts_node_bookkeep(((ExternalThing*)oh)->node, + make_boxed(((Eterm*)oh)-offs), ERL_NODE_DEC); + erts_node_bookkeep(((ExternalThing*)oh)->node, + make_boxed((Eterm*)oh), ERL_NODE_INC); + } + if (ErtsInArea(oh->next, area, area_size)) { Eterm** uptr = (Eterm **) (void *) &oh->next; *uptr += offs; /* Patch the mso chain */ diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c index e12a51a0ae..9d40754d2d 100644 --- a/erts/emulator/beam/erl_message.c +++ b/erts/emulator/beam/erl_message.c @@ -181,7 +181,7 @@ erts_cleanup_offheap(ErlOffHeap *offheap) break; default: ASSERT(is_external_header(u.hdr->thing_word)); - erts_deref_node_entry(u.ext->node); + erts_deref_node_entry(u.ext->node, make_boxed(u.ep)); break; } } diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index b301e5d56a..60c3be3223 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -817,11 +817,16 @@ node_table_alloc(void *venp_tmpl) node_entries++; - erts_refc_init(&enp->refc, -1); + erts_init_node_entry(enp, -1); enp->creation = ((ErlNode *) venp_tmpl)->creation; enp->sysname = ((ErlNode *) venp_tmpl)->sysname; enp->dist_entry = erts_find_or_insert_dist_entry(((ErlNode *) venp_tmpl)->sysname); +#ifdef ERL_NODE_BOOKKEEP + erts_atomic_init_nob(&enp->slot, 0); + sys_memzero(enp->books, sizeof(struct erl_node_bookkeeping) * 1024); +#endif + return (void *) enp; } @@ -874,7 +879,7 @@ erts_node_table_info(fmtfn_t to, void *to_arg) } -ErlNode *erts_find_or_insert_node(Eterm sysname, Uint32 creation) +ErlNode *erts_find_or_insert_node(Eterm sysname, Uint32 creation, Eterm book) { ErlNode *res; ErlNode ne; @@ -884,9 +889,9 @@ ErlNode *erts_find_or_insert_node(Eterm sysname, Uint32 creation) erts_rwmtx_rlock(&erts_node_table_rwmtx); res = hash_get(&erts_node_table, (void *) &ne); if (res && res != erts_this_node) { - erts_aint_t refc = erts_refc_inctest(&res->refc, 0); + erts_aint_t refc = erts_ref_node_entry(res, 0, book); if (refc < 2) /* New or pending delete */ - erts_refc_inc(&res->refc, 1); + erts_ref_node_entry(res, 1, THE_NON_VALUE); } erts_rwmtx_runlock(&erts_node_table_rwmtx); if (res) @@ -896,9 +901,9 @@ ErlNode *erts_find_or_insert_node(Eterm sysname, Uint32 creation) res = hash_put(&erts_node_table, (void *) &ne); ASSERT(res); if (res != erts_this_node) { - erts_aint_t refc = erts_refc_inctest(&res->refc, 0); + erts_aint_t refc = erts_ref_node_entry(res, 0, book); if (refc < 2) /* New or pending delete */ - erts_refc_inc(&res->refc, 1); + erts_ref_node_entry(res, 1, THE_NON_VALUE); } erts_rwmtx_rwunlock(&erts_node_table_rwmtx); return res; @@ -925,6 +930,7 @@ static void try_delete_node(void *venp) * * If refc > 0, the entry is in use. Keep the entry. */ + erts_node_bookkeep(enp, THE_NON_VALUE, ERL_NODE_DEC); refc = erts_refc_dectest(&enp->refc, -1); if (refc == -1) (void) hash_erase(&erts_node_table, (void *) enp); @@ -1022,7 +1028,7 @@ erts_set_this_node(Eterm sysname, Uint creation) erts_deref_dist_entry(erts_this_dist_entry); erts_this_node = NULL; /* to make sure refc is bumped for this node */ - erts_this_node = erts_find_or_insert_node(sysname, creation); + erts_this_node = erts_find_or_insert_node(sysname, creation, THE_NON_VALUE); erts_this_dist_entry = erts_this_node->dist_entry; erts_ref_dist_entry(erts_this_dist_entry); @@ -1091,7 +1097,7 @@ void erts_init_node_tables(int dd_sec) node_tmpl.creation = 0; erts_this_node = hash_put(&erts_node_table, &node_tmpl); /* +1 for erts_this_node */ - erts_refc_init(&erts_this_node->refc, 1); + erts_init_node_entry(erts_this_node, 1); ASSERT(erts_this_node->dist_entry != NULL); erts_this_dist_entry = erts_this_node->dist_entry; @@ -1844,6 +1850,25 @@ insert_sig_ext(ErtsDistExternal *edep, void *arg) insert_dist_entry(edep->dep, SIGNAL_REF, proc->common.id, 0); } +#ifdef ERL_NODE_BOOKKEEP +void +erts_node_bookkeep(ErlNode *np, Eterm term, int what) +{ + erts_aint_t slot = (erts_atomic_inc_read_nob(&np->slot) - 1) % 1024; + ErtsSchedulerData *esdp = erts_get_scheduler_data(); + Eterm who = THE_NON_VALUE; + ASSERT(np); + np->books[slot].what = what; + np->books[slot].term = term; + if (esdp->current_process) { + who = esdp->current_process->common.id; + } else if (esdp->current_port) { + who = esdp->current_port->common.id; + } + np->books[slot].who = who; +} +#endif + static void setup_reference_table(void) { diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index cd5d69a302..d5daf0c2df 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -176,12 +176,53 @@ struct dist_entry_ { struct dist_sequences *sequences; /* Ongoing distribution sequences */ }; +/* +#define ERL_NODE_BOOKKEEP + * Bookkeeping of ErlNode inc and dec operations to help debug refc problems. + * This is best used together with cerl -rr. Type the below into gdb: + * gdb: +set pagination off +set $i = 0 +set $node = referred_nodes[$node_ix].node +while $i < $node->slot.counter + printf "%p: ", $node->books[$i].term + etp-1 $node->books[$i].who + printf " " + p $node->books[$i].what + set $i++ +end + + * Then save that into a file called test.txt and run the below in + * an erlang shell in order to get all inc/dec that do not have a + * match. + +f(), {ok, B} = file:read_file("test.txt"). +Vs = [begin [Val, _, _, _, What] = All = string:lexemes(Ln, " "),{Val,What,All} end || Ln <- string:lexemes(B,"\n")]. +Accs = lists:foldl(fun({V,<<"ERL_NODE_INC">>,_},M) -> Val = maps:get(V,M,0), M#{ V => Val + 1 }; ({V,<<"ERL_NODE_DEC">>,_},M) -> Val = maps:get(V,M,0), M#{ V => Val - 1 } end, #{}, Vs). +lists:usort(lists:filter(fun({V,N}) -> N /= 0 end, maps:to_list(Accs))). + + * There are bound to be bugs in the the instrumentation code, but + * atleast this is a place to start when hunting refc bugs. + * + */ +#ifdef ERL_NODE_BOOKKEEP +struct erl_node_bookkeeping { + Eterm who; + Eterm term; + enum { ERL_NODE_INC, ERL_NODE_DEC } what; +}; +#endif + typedef struct erl_node_ { HashBucket hash_bucket; /* Hash bucket */ erts_refc_t refc; /* Reference count */ Eterm sysname; /* name@host atom for efficiency */ Uint32 creation; /* Creation */ DistEntry *dist_entry; /* Corresponding dist entry */ +#ifdef ERL_NODE_BOOKKEEP + struct erl_node_bookkeeping books[1024]; + erts_atomic_t slot; +#endif } ErlNode; @@ -214,7 +255,7 @@ void erts_dist_table_info(fmtfn_t, void *); void erts_set_dist_entry_not_connected(DistEntry *); void erts_set_dist_entry_pending(DistEntry *); void erts_set_dist_entry_connected(DistEntry *, Eterm, Uint); -ErlNode *erts_find_or_insert_node(Eterm, Uint32); +ErlNode *erts_find_or_insert_node(Eterm, Uint32, Eterm); void erts_schedule_delete_node(ErlNode *); void erts_set_this_node(Eterm, Uint); Uint erts_node_table_size(void); @@ -232,18 +273,38 @@ DistEntry *erts_dhandle_to_dist_entry(Eterm dhandle, Uint32* connection_id); Eterm erts_build_dhandle(Eterm **hpp, ErlOffHeap*, DistEntry*, Uint32 conn_id); Eterm erts_make_dhandle(Process *c_p, DistEntry*, Uint32 conn_id); -ERTS_GLB_INLINE void erts_deref_node_entry(ErlNode *np); +ERTS_GLB_INLINE void erts_init_node_entry(ErlNode *np, erts_aint_t val); +ERTS_GLB_INLINE erts_aint_t erts_ref_node_entry(ErlNode *np, int min_val, Eterm term); +ERTS_GLB_INLINE void erts_deref_node_entry(ErlNode *np, Eterm term); ERTS_GLB_INLINE void erts_de_rlock(DistEntry *dep); ERTS_GLB_INLINE void erts_de_runlock(DistEntry *dep); ERTS_GLB_INLINE void erts_de_rwlock(DistEntry *dep); ERTS_GLB_INLINE void erts_de_rwunlock(DistEntry *dep); +#ifdef ERL_NODE_BOOKKEEP +void erts_node_bookkeep(ErlNode *, Eterm , int); +#else +#define erts_node_bookkeep(...) +#endif #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE void -erts_deref_node_entry(ErlNode *np) +erts_init_node_entry(ErlNode *np, erts_aint_t val) +{ + erts_refc_init(&np->refc, val); +} + +ERTS_GLB_INLINE erts_aint_t +erts_ref_node_entry(ErlNode *np, int min_val, Eterm term) +{ + erts_node_bookkeep(np, term, ERL_NODE_INC); + return erts_refc_inctest(&np->refc, min_val); +} + +ERTS_GLB_INLINE void +erts_deref_node_entry(ErlNode *np, Eterm term) { - ASSERT(np); + erts_node_bookkeep(np, term, ERL_NODE_DEC); if (erts_refc_dectest(&np->refc, 0) == 0) erts_schedule_delete_node(np); } diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c index 8113abebde..d20be0149c 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.c +++ b/erts/emulator/beam/erl_proc_sig_queue.c @@ -265,7 +265,7 @@ destroy_dist_proc_demonitor(ErtsSigDistProcDemonitor *dmon) Eterm ref = dmon->ref; if (is_external(ref)) { ExternalThing *etp = external_thing_ptr(ref); - erts_deref_node_entry(etp->node); + erts_deref_node_entry(etp->node, ref); } erts_free(ERTS_ALC_T_DIST_DEMONITOR, dmon); } @@ -300,7 +300,8 @@ destroy_sig_dist_link_op(ErtsSigDistLinkOp *sdlnk) { ASSERT(is_external_pid(sdlnk->remote)); ASSERT(boxed_val(sdlnk->remote) == &sdlnk->heap[0]); - erts_deref_node_entry(((ExternalThing *) &sdlnk->heap[0])->node); + erts_deref_node_entry(((ExternalThing *) &sdlnk->heap[0])->node, + make_boxed(&sdlnk->heap[0])); erts_free(ERTS_ALC_T_SIG_DATA, sdlnk); } diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 988ce242c4..7aa136575f 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -2480,7 +2480,7 @@ dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) return ep; } -static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint32 creation) +static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint32 creation, Eterm book) { if (sysname == INTERNAL_LOCAL_SYSNAME) /* && DFLAG_INTERNAL_TAGS */ return erts_this_node; @@ -2489,7 +2489,7 @@ static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint32 creation) && (creation == erts_this_node->creation || creation == ORIG_CREATION)) return erts_this_node; - return erts_find_or_insert_node(sysname,creation); + return erts_find_or_insert_node(sysname,creation,book); } static byte* @@ -2535,7 +2535,7 @@ dec_pid(ErtsDistExternal *edep, ErtsHeapFactory* factory, byte* ep, * We are careful to create the node entry only after all * validity tests are done. */ - node = dec_get_node(sysname, cre); + node = dec_get_node(sysname, cre, make_boxed(factory->hp)); if(node == erts_this_node) { *objp = make_internal_pid(data); @@ -3529,7 +3529,7 @@ dec_term_atom_common: cre = get_int32(ep); ep += 4; } - node = dec_get_node(sysname, cre); + node = dec_get_node(sysname, cre, make_boxed(hp)); if(node == erts_this_node) { *objp = make_internal_port(num); } @@ -3609,7 +3609,7 @@ dec_term_atom_common: if (ref_words > ERTS_MAX_REF_NUMBERS) goto error; - node = dec_get_node(sysname, cre); + node = dec_get_node(sysname, cre, make_boxed(hp)); if(node == erts_this_node) { rtp = (ErtsORefThing *) hp; diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 1e7b494a91..3fa09e39f2 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -3486,7 +3486,7 @@ store_external_or_ref_(Uint **hpp, ErlOffHeap* oh, Eterm ns) if (is_external_header(*from_hp)) { ExternalThing *etp = (ExternalThing *) from_hp; ASSERT(is_external(ns)); - erts_refc_inc(&etp->node->refc, 2); + erts_ref_node_entry(etp->node, 2, make_boxed(to_hp)); } else if (is_ordinary_ref_thing(from_hp)) return make_internal_ref(to_hp); -- cgit v1.2.3 From fc0967392625626289f03e6955c24e73ea1fd617 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Thu, 31 Jan 2019 10:52:35 +0100 Subject: erts: Implement trapping while sending distr exit/down The reason in EXIT and DOWN may be arbitrarily large, so we yield and allow other processes to execute while encoding and sending the signals over the distribution. --- erts/emulator/beam/erl_node_tables.c | 118 ++++++---- erts/emulator/beam/erl_port_task.c | 2 +- erts/emulator/beam/erl_proc_sig_queue.c | 2 +- erts/emulator/beam/erl_process.c | 377 ++++++++++++++++++++++++++------ erts/emulator/beam/erl_process.h | 10 +- erts/emulator/beam/io.c | 2 +- 6 files changed, 391 insertions(+), 120 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 60c3be3223..8fe5c3c690 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -1850,6 +1850,70 @@ insert_sig_ext(ErtsDistExternal *edep, void *arg) insert_dist_entry(edep->dep, SIGNAL_REF, proc->common.id, 0); } +static void +insert_process(Process *proc) +{ + int mli; + ErtsMessage *msg_list[] = {proc->msg_frag}; + ErlHeapFragment *hfp; + + /* Insert Heap */ + insert_offheap(&(proc->off_heap), + HEAP_REF, + proc->common.id); + /* Insert heap fragments buffers */ + for(hfp = proc->mbuf; hfp; hfp = hfp->next) + insert_offheap(&(hfp->off_heap), + HEAP_REF, + proc->common.id); + + /* Insert msg buffers */ + for (mli = 0; mli < sizeof(msg_list)/sizeof(msg_list[0]); mli++) { + ErtsMessage *msg; + for (msg = msg_list[mli]; msg; msg = msg->next) + insert_message(msg, HEAP_REF, proc); + } + + /* Insert signal queue */ + erts_proc_sig_debug_foreach_sig(proc, + insert_sig_msg, + insert_sig_offheap, + insert_sig_monitor, + insert_sig_link, + insert_sig_ext, + (void *) proc); + + /* If the process is FREE, the proc->common field has been + re-used by the ptab delete, so we cannot trust it. */ + if (!(erts_atomic32_read_nob(&proc->state) & ERTS_PSFLG_FREE)) { + /* Insert links */ + insert_p_links(&proc->common); + + /* Insert monitors */ + insert_p_monitors(&proc->common); + } + + { + DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc); + if (dep) + insert_dist_entry(dep, + CTRL_REF, + proc->common.id, + 0); + } +} + +static void +insert_dist_suspended_procs(DistEntry *dep) +{ + ErtsProcList *plist = erts_proclist_peek_first(dep->suspended); + while (plist) { + if (is_not_immed(plist->u.pid)) + insert_process(plist->u.p); + plist = erts_proclist_peek_next(dep->suspended, plist); + } +} + #ifdef ERL_NODE_BOOKKEEP void erts_node_bookkeep(ErlNode *np, Eterm term, int what) @@ -1872,7 +1936,6 @@ erts_node_bookkeep(ErlNode *np, Eterm term, int what) static void setup_reference_table(void) { - ErlHeapFragment *hfp; DistEntry *dep; HashInfo hi; int i, max; @@ -1922,53 +1985,10 @@ setup_reference_table(void) /* Insert all processes */ for (i = 0; i < max; i++) { Process *proc = erts_pix2proc(i); - if (proc) { - int mli; - ErtsMessage *msg_list[] = {proc->msg_frag}; - - /* Insert Heap */ - insert_offheap(&(proc->off_heap), - HEAP_REF, - proc->common.id); - /* Insert heap fragments buffers */ - for(hfp = proc->mbuf; hfp; hfp = hfp->next) - insert_offheap(&(hfp->off_heap), - HEAP_REF, - proc->common.id); - - /* Insert msg buffers */ - for (mli = 0; mli < sizeof(msg_list)/sizeof(msg_list[0]); mli++) { - ErtsMessage *msg; - for (msg = msg_list[mli]; msg; msg = msg->next) - insert_message(msg, HEAP_REF, proc); - } - - /* Insert signal queue */ - erts_proc_sig_debug_foreach_sig(proc, - insert_sig_msg, - insert_sig_offheap, - insert_sig_monitor, - insert_sig_link, - insert_sig_ext, - (void *) proc); - - /* Insert links */ - insert_p_links(&proc->common); - - /* Insert monitors */ - insert_p_monitors(&proc->common); - - { - DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc); - if (dep) - insert_dist_entry(dep, - CTRL_REF, - proc->common.id, - 0); - } - } + if (proc) + insert_process(proc); } - + erts_foreach_sys_msg_in_q(insert_sys_msg); /* Insert all ports */ @@ -2042,18 +2062,21 @@ setup_reference_table(void) insert_dist_links(dep); insert_dist_monitors(dep); insert_dist_sequences(dep); + insert_dist_suspended_procs(dep); } for(dep = erts_hidden_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); insert_dist_sequences(dep); + insert_dist_suspended_procs(dep); } for(dep = erts_pending_dist_entries; dep; dep = dep->next) { insert_dist_links(dep); insert_dist_monitors(dep); insert_dist_sequences(dep); + insert_dist_suspended_procs(dep); } /* Not connected dist entries should not have any links, @@ -2062,6 +2085,7 @@ setup_reference_table(void) insert_dist_links(dep); insert_dist_monitors(dep); insert_dist_sequences(dep); + insert_dist_suspended_procs(dep); } /* Insert all ets tables */ diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index c8f2e88127..30a7875387 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -2094,7 +2094,7 @@ begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p) erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", pp->common.id); while (plp2 != NULL) { - erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->u.pid); DTRACE2(process_port_unblocked, pid_str, port_str); } } diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c index d20be0149c..9c74a2c355 100644 --- a/erts/emulator/beam/erl_proc_sig_queue.c +++ b/erts/emulator/beam/erl_proc_sig_queue.c @@ -3854,7 +3854,7 @@ erts_proc_sig_handle_exit(Process *c_p, Sint *redsp) break; case ERTS_SIG_Q_OP_MONITOR: { - ErtsProcExitContext pectxt = {c_p, am_noproc}; + ErtsProcExitContext pectxt = {c_p, am_noproc, NULL, NULL, NIL}; erts_proc_exit_handle_monitor((ErtsMonitor *) sig, (void *) &pectxt, -1); cnt += 4; diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 422f6a51d9..ddb76a0b00 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -1470,7 +1470,10 @@ proclist_create(Process *p) { ErtsProcList *plp = proclist_alloc(); ensure_later_proc_interval(p->common.u.alive.started_interval); - plp->pid = p->common.id; + if (erts_atomic32_read_nob(&p->state) & ERTS_PSFLG_FREE) + plp->u.p = p; + else + plp->u.pid = p->common.id; plp->started_interval = p->common.u.alive.started_interval; return plp; } @@ -1479,7 +1482,7 @@ static ERTS_INLINE ErtsProcList * proclist_copy(ErtsProcList *plp0) { ErtsProcList *plp1 = proclist_alloc(); - plp1->pid = plp0->pid; + plp1->u.pid = plp0->u.pid; plp1->started_interval = plp0->started_interval; return plp1; } @@ -1514,7 +1517,10 @@ erts_proclist_dump(fmtfn_t to, void *to_arg, ErtsProcList *plp) ErtsProcList *first = plp; while (plp) { - erts_print(to, to_arg, "%T", plp->pid); + if (is_pid(plp->u.pid)) + erts_print(to, to_arg, "%T", plp->u.pid); + else + erts_print(to, to_arg, "%T", plp->u.p->common.id); plp = plp->next; if (plp == first) break; @@ -7204,8 +7210,7 @@ schdlr_sspnd_resume_procs(ErtsSchedType sched_type, while (resume->msb.chngrs) { ErtsProcList *plp = resume->msb.chngrs; resume->msb.chngrs = plp->next; - schdlr_sspnd_resume_proc(sched_type, - plp->pid); + schdlr_sspnd_resume_proc(sched_type, plp->u.pid); proclist_destroy(plp); } } @@ -7637,7 +7642,7 @@ suspend_scheduler(ErtsSchedulerData *esdp) else { schdlr_sspnd.changer = am_true; /* change right in transit */ /* resume process that is queued for next change... */ - resume.onln.nxt = plp->pid; + resume.onln.nxt = plp->u.pid; ASSERT(is_internal_pid(resume.onln.nxt)); } } @@ -7857,7 +7862,7 @@ abort_sched_onln_chng_waitq(Process *p) proclist_destroy(plp); plp = erts_proclist_peek_first(schdlr_sspnd.chngq); if (plp) - resume = plp->pid; + resume = plp->u.pid; else schdlr_sspnd.changer = am_false; } @@ -8357,10 +8362,10 @@ erts_multi_scheduling_blockers(Process *p, int normal) plp1; plp1 = erts_proclist_peek_next(msbp->blckrs, plp1)) { for (plp2 = erts_proclist_peek_first(msbp->blckrs); - plp2->pid != plp1->pid; + plp2->u.pid != plp1->u.pid; plp2 = erts_proclist_peek_next(msbp->blckrs, plp2)); if (plp2 == plp1) { - res = CONS(hp, plp1->pid, res); + res = CONS(hp, plp1->u.pid, res); hp += 2; } /* else: already in result list */ @@ -9029,8 +9034,13 @@ erts_resume_processes(ErtsProcList *list) while (plp) { Process *proc; ErtsProcList *fplp; - ASSERT(is_internal_pid(plp->pid)); - proc = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCK_STATUS); + ASSERT(is_internal_pid(plp->u.pid) || is_CP((Eterm)plp->u.p)); + if (is_internal_pid(plp->u.pid)) + proc = erts_pid2proc(NULL, 0, plp->u.pid, ERTS_PROC_LOCK_STATUS); + else { + proc = plp->u.p; + erts_proc_lock(proc, ERTS_PROC_LOCK_STATUS); + } if (proc) { if (erts_proclist_same(plp, proc)) { resume_process(proc, ERTS_PROC_LOCK_STATUS); @@ -12050,12 +12060,91 @@ erts_set_self_exiting(Process *c_p, Eterm reason) add2runq(enqueue, enq_prio, c_p, state, NULL); } +static int +erts_proc_exit_handle_dist_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) +{ + ErtsProcExitContext *ctxt = (ErtsProcExitContext *) vctxt; + Process *c_p = ctxt->c_p; + Eterm reason = ctxt->reason; + int code; + ErtsDSigSendContext ctx; + ErtsMonLnkDist *dist; + DistEntry *dep; + Eterm watcher; + ErtsMonitorData *mdp = NULL; + Eterm watched; + + ASSERT(erts_monitor_is_target(mon) && mon->type == ERTS_MON_TYPE_DIST_PROC); + + mdp = erts_monitor_to_data(mon); + + if (mon->flags & ERTS_ML_FLG_NAME) + watched = ((ErtsMonitorDataExtended *) mdp)->u.name; + else + watched = c_p->common.id; + ASSERT(is_internal_pid(watched) || is_atom(watched)); + + watcher = mon->other.item; + ASSERT(is_external_pid(watcher)); + dep = external_pid_dist_entry(watcher); + ASSERT(dep); + dist = ((ErtsMonitorDataExtended *) mdp)->dist; + ASSERT(dist); + + code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_NO_LOCK, 0, 0, 1); + + ctx.reds = (Sint) (reds * TERM_TO_BINARY_LOOP_FACTOR); + + switch (code) { + case ERTS_DSIG_PREP_NOT_ALIVE: + case ERTS_DSIG_PREP_NOT_CONNECTED: + break; + case ERTS_DSIG_PREP_PENDING: + case ERTS_DSIG_PREP_CONNECTED: + if (dist->connection_id != ctx.connection_id) + break; + code = erts_dsig_send_m_exit(&ctx, + watcher, + watched, + mdp->ref, + reason); + switch (code) { + case ERTS_DSIG_SEND_CONTINUE: + erts_set_gc_state(c_p, 0); + ctxt->dist_state = erts_dsend_export_trap_context(c_p, &ctx); + /* fall-through */ + case ERTS_DSIG_SEND_YIELD: + break; + case ERTS_DSIG_SEND_OK: + break; + case ERTS_DSIG_SEND_TOO_LRG: + erts_set_gc_state(c_p, 1); + break; + default: + ASSERT(! "Invalid dsig send exit monitor result"); + break; + } + break; + default: + ASSERT(! "Invalid dsig prep exit monitor result"); + break; + } + if (!erts_monitor_dist_delete(&mdp->origin)) + erts_monitor_release(mon); + else + erts_monitor_release_both(mdp); + return reds - (ctx.reds / TERM_TO_BINARY_LOOP_FACTOR); +} + int erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) { - Process *c_p = ((ErtsProcExitContext *) vctxt)->c_p; - Eterm reason = ((ErtsProcExitContext *) vctxt)->reason; + ErtsProcExitContext *ctxt = (ErtsProcExitContext *) vctxt; + Process *c_p = ctxt->c_p; + Eterm reason = ctxt->reason; ErtsMonitorData *mdp = NULL; + int res = 1; if (erts_monitor_is_target(mon)) { /* We are being watched... */ @@ -12090,38 +12179,43 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) Eterm watcher; Eterm watched; - mdp = erts_monitor_to_data(mon); + if (is_immed(reason)) { + mdp = erts_monitor_to_data(mon); - if (mon->flags & ERTS_ML_FLG_NAME) - watched = ((ErtsMonitorDataExtended *) mdp)->u.name; - else - watched = c_p->common.id; - ASSERT(is_internal_pid(watched) || is_atom(watched)); - - watcher = mon->other.item; - ASSERT(is_external_pid(watcher)); - dep = external_pid_dist_entry(watcher); - ASSERT(dep); - dist = ((ErtsMonitorDataExtended *) mdp)->dist; - ASSERT(dist); - code = erts_dsig_prepare(&ctx, dep, NULL, 0, - ERTS_DSP_NO_LOCK, 1, 1, 0); - switch (code) { - case ERTS_DSIG_PREP_CONNECTED: - case ERTS_DSIG_PREP_PENDING: - if (dist->connection_id == ctx.connection_id) { - code = erts_dsig_send_m_exit(&ctx, - watcher, - watched, - mdp->ref, - reason); - ASSERT(code == ERTS_DSIG_SEND_OK); + if (mon->flags & ERTS_ML_FLG_NAME) + watched = ((ErtsMonitorDataExtended *) mdp)->u.name; + else + watched = c_p->common.id; + ASSERT(is_internal_pid(watched) || is_atom(watched)); + + watcher = mon->other.item; + ASSERT(is_external_pid(watcher)); + dep = external_pid_dist_entry(watcher); + ASSERT(dep); + dist = ((ErtsMonitorDataExtended *) mdp)->dist; + ASSERT(dist); + code = erts_dsig_prepare(&ctx, dep, NULL, 0, + ERTS_DSP_NO_LOCK, 1, 1, 0); + switch (code) { + case ERTS_DSIG_PREP_CONNECTED: + case ERTS_DSIG_PREP_PENDING: + if (dist->connection_id == ctx.connection_id) { + code = erts_dsig_send_m_exit(&ctx, + watcher, + watched, + mdp->ref, + reason); + ASSERT(code == ERTS_DSIG_SEND_OK); + } + default: + break; } - default: - break; + if (!erts_monitor_dist_delete(&mdp->origin)) + mdp = NULL; + } else { + erts_monitor_tree_insert(&ctxt->dist_monitors, mon); + return 1; } - if (!erts_monitor_dist_delete(&mdp->origin)) - mdp = NULL; break; } default: @@ -12197,6 +12291,7 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) } if (!erts_monitor_dist_delete(&mdp->target)) mdp = NULL; + res = 100; break; } default: @@ -12209,12 +12304,84 @@ erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds) erts_monitor_release_both(mdp); else if (mon) erts_monitor_release(mon); - return 1; + return res; +} + +static int +erts_proc_exit_handle_dist_link(ErtsLink *lnk, void *vctxt, Sint reds) +{ + ErtsProcExitContext *ctxt = (ErtsProcExitContext *) vctxt; + Process *c_p = ctxt->c_p; + Eterm reason = ctxt->reason; + int code; + ErtsDSigSendContext ctx; + ErtsMonLnkDist *dist; + DistEntry *dep; + ErtsLink *dlnk; + ErtsLinkData *ldp = NULL; + + ASSERT(lnk->type == ERTS_LNK_TYPE_DIST_PROC); + dlnk = erts_link_to_other(lnk, &ldp); + dist = ((ErtsLinkDataExtended *) ldp)->dist; + + ASSERT(is_external_pid(lnk->other.item)); + dep = external_pid_dist_entry(lnk->other.item); + + ASSERT(dep != erts_this_dist_entry); + + if (!erts_link_dist_delete(dlnk)) + ldp = NULL; + + code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN, + ERTS_DSP_NO_LOCK, 0, 0, 0); + + ctx.reds = (Sint) (reds * TERM_TO_BINARY_LOOP_FACTOR); + + switch (code) { + case ERTS_DSIG_PREP_NOT_ALIVE: + case ERTS_DSIG_PREP_NOT_CONNECTED: + break; + case ERTS_DSIG_PREP_PENDING: + case ERTS_DSIG_PREP_CONNECTED: + if (dist->connection_id != ctx.connection_id) + break; + code = erts_dsig_send_exit_tt(&ctx, + c_p->common.id, + lnk->other.item, + reason, + SEQ_TRACE_TOKEN(c_p)); + switch (code) { + case ERTS_DSIG_SEND_CONTINUE: + erts_set_gc_state(c_p, 0); + ctxt->dist_state = erts_dsend_export_trap_context(c_p, &ctx); + /* fall-through */ + case ERTS_DSIG_SEND_YIELD: + break; + case ERTS_DSIG_SEND_OK: + break; + case ERTS_DSIG_SEND_TOO_LRG: + erts_set_gc_state(c_p, 1); + break; + default: + ASSERT(! "Invalid dsig send exit monitor result"); + break; + } + break; + default: + ASSERT(! "Invalid dsig prep exit monitor result"); + break; + } + if (ldp) + erts_link_release_both(ldp); + else if (lnk) + erts_link_release(lnk); + return reds - (ctx.reds / TERM_TO_BINARY_LOOP_FACTOR); } int erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds) { + ErtsProcExitContext *ctxt = (ErtsProcExitContext *) vctxt; Process *c_p = ((ErtsProcExitContext *) vctxt)->c_p; Eterm reason = ((ErtsProcExitContext *) vctxt)->reason; ErtsLinkData *ldp = NULL; @@ -12248,29 +12415,37 @@ erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds) ErtsDSigSendContext ctx; int code; - dlnk = erts_link_to_other(lnk, &ldp); - dist = ((ErtsLinkDataExtended *) ldp)->dist; + if (is_immed(reason)) { + dlnk = erts_link_to_other(lnk, &ldp); + dist = ((ErtsLinkDataExtended *) ldp)->dist; - ASSERT(is_external_pid(lnk->other.item)); - dep = external_pid_dist_entry(lnk->other.item); + ASSERT(is_external_pid(lnk->other.item)); + dep = external_pid_dist_entry(lnk->other.item); - ASSERT(dep != erts_this_dist_entry); + ASSERT(dep != erts_this_dist_entry); - if (!erts_link_dist_delete(dlnk)) - ldp = NULL; + if (!erts_link_dist_delete(dlnk)) + ldp = NULL; - code = erts_dsig_prepare(&ctx, dep, c_p, 0, ERTS_DSP_NO_LOCK, 1, 1, 0); - switch (code) { - case ERTS_DSIG_PREP_CONNECTED: - case ERTS_DSIG_PREP_PENDING: - if (dist->connection_id == ctx.connection_id) { - code = erts_dsig_send_exit_tt(&ctx, - c_p->common.id, - lnk->other.item, - reason, - SEQ_TRACE_TOKEN(c_p)); - ASSERT(code == ERTS_DSIG_SEND_OK); + code = erts_dsig_prepare(&ctx, dep, c_p, 0, ERTS_DSP_NO_LOCK, 1, 1, 0); + switch (code) { + case ERTS_DSIG_PREP_CONNECTED: + case ERTS_DSIG_PREP_PENDING: + if (dist->connection_id == ctx.connection_id) { + code = erts_dsig_send_exit_tt(&ctx, + c_p->common.id, + lnk->other.item, + reason, + SEQ_TRACE_TOKEN(c_p)); + ASSERT(code == ERTS_DSIG_SEND_OK); + } + break; + default: + break; } + } else { + erts_link_tree_insert(&ctxt->dist_links, lnk); + return 1; } break; } @@ -12359,6 +12534,9 @@ enum continue_exit_phase { ERTS_CONTINUE_EXIT_MONITORS, ERTS_CONTINUE_EXIT_LT_MONITORS, ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG, + ERTS_CONTINUE_EXIT_DIST_LINKS, + ERTS_CONTINUE_EXIT_DIST_MONITORS, + ERTS_CONTINUE_EXIT_DONE, }; struct continue_exit_state { @@ -12398,7 +12576,7 @@ erts_continue_exit_process(Process *p) ASSERT(ERTS_PROC_IS_EXITING(p)); ASSERT(erts_proc_read_refc(p) > 0); - +restart: switch (trap_state->phase) { case ERTS_CONTINUE_EXIT_TIMERS: if (p->bif_timers) { @@ -12558,6 +12736,7 @@ erts_continue_exit_process(Process *p) ? ERTS_PROC_SET_DIST_ENTRY(p, NULL) : NULL); + reds -= 50; erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR); curr_locks = ERTS_PROC_LOCK_MAIN; @@ -12591,6 +12770,9 @@ erts_continue_exit_process(Process *p) trap_state->pectxt.c_p = p; trap_state->pectxt.reason = trap_state->reason; + trap_state->pectxt.dist_links = NULL; + trap_state->pectxt.dist_monitors = NULL; + trap_state->pectxt.dist_state = NIL; erts_proc_lock(p, ERTS_PROC_LOCK_MSGQ); @@ -12598,8 +12780,6 @@ erts_continue_exit_process(Process *p) erts_proc_unlock(p, ERTS_PROC_LOCK_MSGQ); - reds -= 1000; - trap_state->yield_state = NULL; trap_state->phase = ERTS_CONTINUE_EXIT_LINKS; if (reds <= 0) goto yield; @@ -12646,18 +12826,82 @@ erts_continue_exit_process(Process *p) trap_state->phase = ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG; case ERTS_CONTINUE_EXIT_HANDLE_PROC_SIG: { Sint r = reds; - erts_aint_t state; if (!erts_proc_sig_handle_exit(p, &r)) goto yield; reds -= r; + trap_state->phase = ERTS_CONTINUE_EXIT_DIST_LINKS; + } + case ERTS_CONTINUE_EXIT_DIST_LINKS: { + + continue_dist_send: + if (is_not_nil(trap_state->pectxt.dist_state)) { + Binary* bin = erts_magic_ref2bin(trap_state->pectxt.dist_state); + ErtsDSigSendContext* ctx = (ErtsDSigSendContext*) ERTS_MAGIC_BIN_DATA(bin); + Sint initial_reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR); + int result; + + ctx->reds = initial_reds; + result = erts_dsig_send(ctx); + + /* erts_dsig_send bumps reductions on the process in the ctx */ + reds = ERTS_BIF_REDS_LEFT(p); + + switch (result) { + case ERTS_DSIG_SEND_OK: + case ERTS_DSIG_SEND_TOO_LRG: /*SEND_SYSTEM_LIMIT*/ + case ERTS_DSIG_SEND_YIELD: /*SEND_YIELD_RETURN*/ + break; + case ERTS_DSIG_SEND_CONTINUE: { /*SEND_YIELD_CONTINUE*/ + goto yield; + } + } + erts_set_gc_state(p, 1); + trap_state->pectxt.dist_state = NIL; + if (reds <= 0) + goto yield; + goto restart; + } + + reds = erts_link_tree_foreach_delete_yielding( + &trap_state->pectxt.dist_links, + erts_proc_exit_handle_dist_link, + (void *) &trap_state->pectxt, + &trap_state->yield_state, + reds); + if (reds <= 0 || is_not_nil(trap_state->pectxt.dist_state)) + goto yield; + trap_state->phase = ERTS_CONTINUE_EXIT_DIST_MONITORS; + } + case ERTS_CONTINUE_EXIT_DIST_MONITORS: { + + if (is_not_nil(trap_state->pectxt.dist_state)) + goto continue_dist_send; + + reds = erts_monitor_tree_foreach_delete_yielding( + &trap_state->pectxt.dist_monitors, + erts_proc_exit_handle_dist_monitor, + (void *) &trap_state->pectxt, + &trap_state->yield_state, + reds); + if (reds <= 0 || is_not_nil(trap_state->pectxt.dist_state)) + goto yield; + + trap_state->phase = ERTS_CONTINUE_EXIT_DONE; + } + case ERTS_CONTINUE_EXIT_DONE: { + erts_aint_t state; /* * From this point on we are no longer allowed to yield * this process. */ +#ifdef DEBUG + yield_allowed = 0; +#endif + /* Set state to not active as we don't want this process to be scheduled in again after this. */ state = erts_atomic32_read_band_relb(&p->state, @@ -12688,9 +12932,6 @@ erts_continue_exit_process(Process *p) &p->common.u.release, sizeof(Process)); -#ifdef DEBUG - yield_allowed = 0; -#endif break; } } diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index cdc03cf940..3b593bce02 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -381,7 +381,10 @@ struct ErtsSchedulerSleepInfo_ { typedef struct ErtsProcList_ ErtsProcList; struct ErtsProcList_ { - Eterm pid; + union { + Eterm pid; + Process *p; + } u; Uint64 started_interval; ErtsProcList* next; ErtsProcList* prev; @@ -1580,7 +1583,7 @@ ERTS_GLB_INLINE int erts_proclist_is_last(ErtsProcList *, ErtsProcList *); ERTS_GLB_INLINE int erts_proclist_same(ErtsProcList *plp, Process *p) { - return (plp->pid == p->common.id + return ((plp->u.pid == p->common.id || plp->u.p == p) && (plp->started_interval == p->common.u.alive.started_interval)); } @@ -1819,6 +1822,9 @@ Eterm erts_process_info(Process *c_p, ErtsHeapFactory *hfact, typedef struct { Process *c_p; Eterm reason; + ErtsLink *dist_links; + ErtsMonitor *dist_monitors; + Eterm dist_state; } ErtsProcExitContext; int erts_proc_exit_handle_monitor(ErtsMonitor *mon, void *vctxt, Sint reds); int erts_proc_exit_handle_link(ErtsLink *lnk, void *vctxt, Sint reds); diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 36824fe62c..b961c639f5 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -5104,7 +5104,7 @@ erts_port_resume_procs(Port *prt) erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); while (plp2 != NULL) { - erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->u.pid); DTRACE2(process_port_unblocked, pid_str, port_str); } } -- cgit v1.2.3 From c0c6f6b137e91f626157389733d1510c192002cf Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Thu, 31 Jan 2019 11:48:45 +0100 Subject: erts: Expand etp to look for free processes --- erts/etc/unix/etp-commands.in | 92 ++++++++++++++++++++++++++++++++++++------- 1 file changed, 77 insertions(+), 15 deletions(-) (limited to 'erts') diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in index 131e967816..2237553113 100644 --- a/erts/etc/unix/etp-commands.in +++ b/erts/etc/unix/etp-commands.in @@ -1789,7 +1789,7 @@ define etp-pix2proc # Args: Eterm # set $proc = (Process *) *((UWord *) &erts_proc.r.o.tab[((int) $arg0)]) - printf "(Process *) %p\n", $proc + printf "(Process*)%p\n", $proc end define etp-pid2proc-1 @@ -1803,7 +1803,7 @@ define etp-pid2proc # Args: Eterm # etp-pid2proc-1 $arg0 - printf "(Process *) %p\n", $proc + printf "(Process*)%p\n", $proc end define etp-proc-state-int @@ -2083,7 +2083,7 @@ define etp-process-info-int printf "\n Flags: " etp-proc-flags $etp_proc if $proxy_process != 0 - printf " Pointer: (Process *) %p\n", $etp_proc + printf " Pointer: (Process*)%p\n", $etp_proc printf " *** PROXY process struct *** refer to: \n" etp-pid2proc-1 $etp_proc->common.id etp-process-info $proc @@ -2133,7 +2133,7 @@ define etp-process-info-int end printf " Parent: " etp-1 ((Eterm)($etp_proc->parent)) - printf "\n Pointer: (Process *) %p\n", $etp_proc + printf "\n Pointer: (Process*)%p\n", $etp_proc end if ($arg1) etp-sigqs $etp_proc @@ -2156,6 +2156,43 @@ document etp-process-info %--------------------------------------------------------------------------- end +define etp-processes-free-runq-int + set $runq_prio = 0 + while $runq_prio < 3 + set $runq_proc = ($arg0)->procs.prio[$runq_prio].first + while $runq_proc != 0 + if $runq_proc->state.counter & 0x400 + printf "---\n" + printf " Pix: FREE -> run_queue %p\n", ($arg0) + etp-process-info-int $runq_proc ($arg1) + end + set $runq_proc = $runq_proc->next + end + set $runq_prio++ + end +end + +define etp-processes-free-de-int + set $de_ix = 0 + while $de_ix < ($arg1) + set $de = ($arg0)+$de_ix + set $susp = $de->suspended + set $susp_curr = $susp + set $first_loop = 1 + while $susp_curr != 0 && (($susp_curr != $susp) || $first_loop) + if ($susp_curr->u.pid & 0x3) == 0 + printf "---\n" + printf " Pix: FREE " + etp $de->sysname + etp-process-info-int $susp_curr->u.pid ($arg2) + end + set $first_loop = 0 + set $susp_curr = $susp_curr->next + end + set $de_ix++ + end +end + define etp-processes-int if (!erts_initialized) printf "No processes, since system isn't initialized!\n" @@ -2167,7 +2204,7 @@ define etp-processes-int set $invalid_proc = &erts_invalid_process set $proc_decentile = $proc_max_ix / 10 set $proc_printile = $proc_decentile - while $proc_ix < $proc_max_ix && $proc_cnt >= 0 + while $proc_ix < $proc_max_ix && $proc_cnt > 0 set $proc = (Process *) *((UWord *) ($proc_tab + $proc_ix)) if ($proc != ((Process *) 0) && $proc != $invalid_proc) printf "---\n" @@ -2176,11 +2213,36 @@ define etp-processes-int set $proc_cnt-- end if $proc_ix == $proc_printile - printf "--- %d%% (%d / %d) searched\n", $proc_printile / $proc_decentile * 10, $proc_ix, $proc_max_ix + printf "--- %d%% (%d / %d) searched, looking for %d more\n", $proc_printile / $proc_decentile * 10, $proc_ix, $proc_max_ix, $proc_cnt set $proc_printile += $proc_decentile end set $proc_ix++ end + + ## We should also check for any FREE processes that are running + ## They can be found in esdp->current_process, dep->suspendees and + ## runq. Running FREE processes are processes that either are yielding + ## when exiting or running on a dirty scheduler while having exited. + set $sched_ix = 0 + while $sched_ix < erts_no_schedulers + set $sched_data = &erts_aligned_scheduler_data[$sched_ix].esd + if $sched_data->current_process != 0 + if $sched_data->current_process.state.counter & 0x400 + printf "---\n" + printf " Pix: FREE -> scheduler %d\n", $sched_ix+1 + etp-process-info-int $sched_data->current_process ($arg0) + end + end + etp-processes-free-runq-int $sched_data->run_queue ($arg0) + set $sched_ix++ + end + etp-processes-free-runq-int &erts_aligned_run_queues[erts_no_run_queues].runq ($arg0) + etp-processes-free-runq-int &erts_aligned_run_queues[erts_no_run_queues+1].runq ($arg0) + etp-processes-free-de-int erts_hidden_dist_entries erts_no_of_hidden_dist_entries ($arg0) + etp-processes-free-de-int erts_visible_dist_entries erts_no_of_visible_dist_entries ($arg0) + etp-processes-free-de-int erts_pending_dist_entries erts_no_of_pending_dist_entries ($arg0) + etp-processes-free-de-int erts_not_connected_dist_entries erts_no_of_not_connected_dist_entries ($arg0) + etp-processes-free-de-int erts_this_dist_entry 1 ($arg0) printf "---\n", end end @@ -2237,9 +2299,9 @@ define etp-process-memory-info end printf " " etp-1 $etp_pmem_proc->common.id - printf ": (Process *) %p ", $etp_pmem_proc + printf ": (Process*)%p ", $etp_pmem_proc if $proxy_process != 0 - printf "(Process *) %p ", $etp_pmem_proc + printf "(Process*)%p ", $etp_pmem_proc printf " *** PROXY process struct *** refer to next: \n" etp-pid2proc-1 $etp_pmem_proc->common.id printf " -" @@ -2313,7 +2375,7 @@ define etp-pix2port # Args: Eterm # set $port = (Port *) *((UWord *) &erts_port.r.o.tab[((int) $arg0)]) - printf "(Port *) %p\n", $port + printf "(Port*)%p\n", $port end define etp-id2port-1 @@ -2327,7 +2389,7 @@ define etp-id2port # Args: Eterm # etp-id2port-1 $arg0 - printf "(Port *) %p\n", $port + printf "(Port*)%p\n", $port end define etp-port-sched-flags-int @@ -2501,7 +2563,7 @@ define etp-port-info printf " Connected: " set $connected = *(((Eterm *) &(((Port *) $etp_pinfo_port)->connected))) etp-1 $connected - printf "\n Pointer: (Port *) %p\n", $etp_pinfo_port + printf "\n Pointer: (Port*)%p\n", $etp_pinfo_port end document etp-port-info @@ -2851,7 +2913,7 @@ define etp-scheduler-info-internal printf " Sleep Info Flags:" set $ssi_flags = *((Uint32 *) &$sched_data->ssi->flags) etp-ssi-flags $ssi_flags - printf " Pointer: (ErtsSchedulerData *) %p\n", $sched_data + printf " Pointer: (ErtsSchedulerData*)%p\n", $sched_data end define etp-run-queue-info-internal @@ -2884,7 +2946,7 @@ define etp-run-queue-info-internal end set $rq_flags = *((Uint32 *) &($runq->flags)) etp-rq-flags-int $rq_flags - printf " Pointer: (ErtsRunQueue *) %p\n", $runq + printf " Pointer: (ErtsRunQueue*)%p\n", $runq end define etp-fds @@ -2961,7 +3023,7 @@ define etp-timer-wheel printf "\n" while 1 printf "- Timeout pos: %ld\n", $tmr->timeout_pos - printf " Pointer: (ErtsTWheelTimer *) %p\n", $tmr + printf " Pointer: (ErtsTWheelTimer*)%p\n", $tmr set $tmr = $tmr->next if ($tmr == $tiw->w[$ix]) loop_break @@ -2991,7 +3053,7 @@ define etp-timer-wheel printf "\n" while 1 printf "- Timeout pos: %ld\n", $tmr->timeout_pos - printf " Pointer: (ErtsTWheelTimer *) %p\n", $tmr + printf " Pointer: (ErtsTWheelTimer*)%p\n", $tmr set $tmr = $tmr->next if ($tmr == $tiw->w[$ix]) loop_break -- cgit v1.2.3 From bf7c722bd3b30e04a56c2d369fd9f5501a8316d0 Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Tue, 12 Feb 2019 16:46:33 +0100 Subject: erts: Fix so that externals with creation 0 compare equal to all The special creation of 0 is used by internally created externals, such as when list_to_pid is called. This creation should compare equal to all externals creations of that external. If it does not we can end up in very strange scenarios. For instance: > P = spawn(OtherNode, fun() -> die end). <8303.60.0> > link(<8303.60.0>). true > flush(). ok OTP-15613 --- erts/emulator/beam/erl_monitor_link.c | 3 ++- erts/emulator/beam/erl_node_tables.c | 5 +++-- erts/emulator/beam/utils.c | 3 ++- 3 files changed, 7 insertions(+), 4 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/erl_monitor_link.c b/erts/emulator/beam/erl_monitor_link.c index 3dabd79190..1c6b4afaa3 100644 --- a/erts/emulator/beam/erl_monitor_link.c +++ b/erts/emulator/beam/erl_monitor_link.c @@ -191,7 +191,8 @@ ml_cmp_keys(Eterm key1, Eterm key2) if (n1->sysname != n2->sysname) return n1->sysname < n2->sysname ? -1 : 1; ASSERT(n1->creation != n2->creation); - return n1->creation < n2->creation ? -1 : 1; + if (n1->creation != 0 && n2->creation != 0) + return n1->creation < n2->creation ? -1 : 1; } ndw1 = external_thing_data_words(et1); diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 8fe5c3c690..afafaf48dc 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -802,8 +802,9 @@ node_table_hash(void *venp) static int node_table_cmp(void *venp1, void *venp2) { - return ((((ErlNode *) venp1)->sysname == ((ErlNode *) venp2)->sysname - && ((ErlNode *) venp1)->creation == ((ErlNode *) venp2)->creation) + return ((((ErlNode *) venp1)->sysname == ((ErlNode *) venp2)->sysname) && + ((((ErlNode *) venp1)->creation == ((ErlNode *) venp2)->creation) || + (((ErlNode *) venp1)->creation == 0 || ((ErlNode *) venp2)->creation == 0)) ? 0 : 1); } diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 3fa09e39f2..36a492f00d 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -2701,7 +2701,8 @@ Sint erts_cmp_compound(Eterm a, Eterm b, int exact, int eq_only) if((AN)->sysname != (BN)->sysname) \ RETURN_NEQ(erts_cmp_atoms((AN)->sysname, (BN)->sysname)); \ ASSERT((AN)->creation != (BN)->creation); \ - RETURN_NEQ(((AN)->creation < (BN)->creation) ? -1 : 1); \ + if ((AN)->creation != 0 && (BN)->creation != 0) \ + RETURN_NEQ(((AN)->creation < (BN)->creation) ? -1 : 1); \ } \ } while (0) -- cgit v1.2.3 From 955a7ab963f9b1316897db30fbc42c9268459efc Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Mon, 18 Feb 2019 11:32:24 +0100 Subject: Make ld.sh on windows print better error reason --- erts/etc/win32/msys_tools/vc/ld.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'erts') diff --git a/erts/etc/win32/msys_tools/vc/ld.sh b/erts/etc/win32/msys_tools/vc/ld.sh index 8917251f51..22184faf76 100644 --- a/erts/etc/win32/msys_tools/vc/ld.sh +++ b/erts/etc/win32/msys_tools/vc/ld.sh @@ -178,7 +178,10 @@ if [ "$RES" = "0" -a -f "$CMANIFEST" ]; then RES=$? if [ "$RES" != "0" ]; then REMOVE=`echo "$OUTPUTRES" | sed 's,\\\;[12]$,,g'` - CREMOVE=`cygpath $REMOVE` + CREMOVE=`win2msys_path.sh $REMOVE` + ## If Defender or Search are enabled, they will lock just created files + ## and then mt will fail :/ + echo "If you get this error, make sure Windows Defender AND Windows Search is disabled">>/tmp/link.exe.${p}.1 rm -f "$CREMOVE" fi rm -f "$CMANIFEST" -- cgit v1.2.3 From 3ee8e06e8102b63c24df0b443027853cdf99549f Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Thu, 21 Feb 2019 15:38:12 +0100 Subject: erts: Add debug dist obuf memory leak check --- erts/emulator/beam/dist.c | 65 +++++++++++++++++++++++++++++++++++-- erts/emulator/beam/erl_init.c | 5 +++ erts/emulator/beam/erl_lock_check.c | 3 +- 3 files changed, 69 insertions(+), 4 deletions(-) (limited to 'erts') diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 7856d8003c..b50c8273b1 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -772,25 +772,77 @@ void init_dist(void) #define ErtsDistOutputBuf2Binary(OB) OB->bin +#ifdef DEBUG + +struct obuf_list; +struct obuf_list { + erts_refc_t refc; + struct obuf_list *next; + struct obuf_list *prev; +}; +#define obuf_list_size sizeof(struct obuf_list) +static struct obuf_list *erts_obuf_list = NULL; +static erts_mtx_t erts_obuf_list_mtx; + +static void +insert_obuf(struct obuf_list *obuf, erts_aint_t initial) { + erts_mtx_lock(&erts_obuf_list_mtx); + obuf->next = erts_obuf_list; + obuf->prev = NULL; + erts_refc_init(&obuf->refc, initial); + if (erts_obuf_list) + erts_obuf_list->prev = obuf; + erts_obuf_list = obuf; + erts_mtx_unlock(&erts_obuf_list_mtx); +} + +static void +remove_obuf(struct obuf_list *obuf) { + if (erts_refc_dectest(&obuf->refc, 0) == 0) { + erts_mtx_lock(&erts_obuf_list_mtx); + if (obuf->prev) { + obuf->prev->next = obuf->next; + } else { + erts_obuf_list = obuf->next; + } + if (obuf->next) obuf->next->prev = obuf->prev; + erts_mtx_unlock(&erts_obuf_list_mtx); + } +} + +void check_obuf(void); +void check_obuf(void) { + erts_mtx_lock(&erts_obuf_list_mtx); + ERTS_ASSERT(erts_obuf_list == NULL); + erts_mtx_unlock(&erts_obuf_list_mtx); +} +#else +#define insert_obuf(...) +#define remove_obuf(...) +#define obuf_list_size 0 +#endif + static ERTS_INLINE ErtsDistOutputBuf * alloc_dist_obuf(Uint size, Uint headers) { int i; ErtsDistOutputBuf *obuf; Uint obuf_size = sizeof(ErtsDistOutputBuf)*(headers) + - sizeof(byte)*size; + sizeof(byte)*size + obuf_list_size; Binary *bin = erts_bin_drv_alloc(obuf_size); + size += obuf_list_size; obuf = (ErtsDistOutputBuf *) &bin->orig_bytes[size]; erts_refc_add(&bin->intern.refc, headers - 1, 1); for (i = 0; i < headers; i++) { obuf[i].bin = bin; - obuf[i].extp = (byte *)&bin->orig_bytes[0]; + obuf[i].extp = (byte *)&bin->orig_bytes[0] + obuf_list_size; #ifdef DEBUG obuf[i].dbg_pattern = ERTS_DIST_OUTPUT_BUF_DBG_PATTERN; obuf[i].alloc_endp = obuf->extp + size; ASSERT(bin == ErtsDistOutputBuf2Binary(obuf)); #endif } + insert_obuf((struct obuf_list*)&bin->orig_bytes[0], headers); return obuf; } @@ -799,7 +851,10 @@ free_dist_obuf(ErtsDistOutputBuf *obuf) { Binary *bin = ErtsDistOutputBuf2Binary(obuf); ASSERT(obuf->dbg_pattern == ERTS_DIST_OUTPUT_BUF_DBG_PATTERN); - erts_bin_release(bin); + remove_obuf((struct obuf_list*)&bin->orig_bytes[0]); + if (erts_refc_dectest(&bin->intern.refc, 0) == 0) { + erts_bin_free(bin); + } } static ERTS_INLINE Sint @@ -4552,6 +4607,10 @@ init_nodes_monitors(void) { erts_mtx_init(&nodes_monitors_mtx, "nodes_monitors", NIL, ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION); +#ifdef DEBUG + erts_mtx_init(&erts_obuf_list_mtx, "sad", NIL, + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION); +#endif nodes_monitors = NULL; no_nodes_monitors = 0; } diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index 12750b9aa6..82d5140d1c 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -2417,12 +2417,17 @@ erts_exit_vv(int n, int flush_async, char *fmt, va_list args1, va_list args2) erts_exit_epilogue(); } +void check_obuf(void); __decl_noreturn void __noreturn erts_exit_epilogue(void) { int n = erts_exit_code; sys_tty_reset(n); +#ifdef DEBUG + check_obuf(); +#endif + if (n == ERTS_INTR_EXIT) exit(0); else if (n == ERTS_DUMP_EXIT) diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index 3aab4828cc..39eabb6710 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -164,7 +164,8 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "os_monotonic_time", NULL }, { "erts_alloc_hard_debug", NULL }, { "hard_dbg_mseg", NULL }, - { "erts_mmap", NULL } + { "erts_mmap", NULL }, + { "sad", NULL} }; #define ERTS_LOCK_ORDER_SIZE \ -- cgit v1.2.3