diff options
Diffstat (limited to 'erts/emulator/beam/io.c')
-rw-r--r-- | erts/emulator/beam/io.c | 247 |
1 files changed, 92 insertions, 155 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 7c6696405b..ccc7da265e 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -47,6 +47,8 @@ #include "external.h" #include "dtrace-wrapper.h" #include "erl_map.h" +#include "erl_bif_unique.h" +#include "erl_hl_timer.h" extern ErlDrvEntry fd_driver_entry; #ifndef __OSE__ @@ -378,11 +380,7 @@ static Port *create_port(char *name, prt->dist_entry = NULL; ERTS_PORT_INIT_CONNECTED(prt, pid); prt->common.u.alive.reg = NULL; -#ifdef ERTS_SMP - prt->common.u.alive.ptimer = NULL; -#else - sys_memset(&prt->common.u.alive.tm, 0, sizeof(ErlTimer)); -#endif + ERTS_PTMR_INIT(prt); erts_port_task_handle_init(&prt->timeout_task); prt->psd = NULL; prt->drv_data = (SWord) 0; @@ -391,7 +389,7 @@ static Port *create_port(char *name, /* Set default tracing */ erts_get_default_tracing(&ERTS_TRACE_FLAGS(prt), &ERTS_TRACER_PROC(prt)); - ASSERT(((char *) prt) == ((char *) &prt->common)); + ERTS_CT_ASSERT(offsetof(Port,common) == 0); #if !ERTS_PORT_INIT_INSTR_NEED_ID /* @@ -462,11 +460,7 @@ erts_port_free(Port *prt) | ERTS_PORT_SFLG_FREE)); ASSERT(state & ERTS_PORT_SFLG_PORT_DEBUG); -#ifdef ERTS_SMP - ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->common.refc) == 0); -#else - ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->refc) == 0); -#endif + ERTS_LC_ASSERT(erts_atomic_read_nob(&prt->common.refc.atmc) == 0); erts_port_task_fini_sched(&prt->sched); @@ -735,11 +729,7 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */ /* * Must clean up the port. */ -#ifdef ERTS_SMP - erts_cancel_smp_ptimer(port->common.u.alive.ptimer); -#else - erts_cancel_timer(&(port->common.u.alive.tm)); -#endif + erts_cancel_port_timer(port); stopq(port); if (port->linebuf != NULL) { erts_free(ERTS_ALC_T_LINEBUF, @@ -1429,15 +1419,7 @@ queue_port_sched_op_reply(Process *rp, bp = erts_resize_message_buffer(bp, used_h_size, &msg, 1); } - erts_queue_message(rp, - rp_locksp, - bp, - msg, - NIL -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, rp_locksp, bp, msg, NIL); } static void @@ -2805,7 +2787,8 @@ void erts_init_io(int port_tab_size, port_tab_size, common_element_size, /* Doesn't need to be excact */ "port_table", - legacy_port_tab); + legacy_port_tab, + 1); erts_smp_atomic_init_nob(&erts_bytes_out, 0); erts_smp_atomic_init_nob(&erts_bytes_in, 0); @@ -3072,7 +3055,7 @@ deliver_result(Eterm sender, Eterm pid, Eterm res) rp = (scheduler ? erts_proc_lookup(pid) - : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_INC_REFC)); if (rp) { Eterm tuple; @@ -3085,16 +3068,12 @@ deliver_result(Eterm sender, Eterm pid, Eterm res) hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks); res = copy_struct(res, sz_res, &hp, ohp); tuple = TUPLE2(hp, sender, res); - erts_queue_message(rp, &rp_locks, bp, tuple, NIL -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, &rp_locks, bp, tuple, NIL); if (rp_locks) erts_smp_proc_unlock(rp, rp_locks); if (!scheduler) - erts_smp_proc_dec_refc(rp); + erts_proc_dec_refc(rp); } } @@ -3138,7 +3117,7 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to, rp = (scheduler ? erts_proc_lookup(to) - : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC)); if (!rp) return; @@ -3153,8 +3132,6 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to, Binary* bptr; bptr = erts_bin_nrml_alloc(len); - bptr->flags = 0; - bptr->orig_size = len; erts_refc_init(&bptr->refc, 1); sys_memcpy(bptr->orig_bytes, buf, len); @@ -3187,15 +3164,11 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to, tuple = TUPLE2(hp, prt->common.id, tuple); hp += 3; - erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined); if (rp_locks) erts_smp_proc_unlock(rp, rp_locks); if (!scheduler) - erts_smp_proc_dec_refc(rp); + erts_proc_dec_refc(rp); } /* @@ -3281,7 +3254,7 @@ deliver_vec_message(Port* prt, /* Port */ rp = (scheduler ? erts_proc_lookup(to) - : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC)); if (!rp) return; @@ -3358,14 +3331,10 @@ deliver_vec_message(Port* prt, /* Port */ tuple = TUPLE2(hp, prt->common.id, tuple); hp += 3; - erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined); erts_smp_proc_unlock(rp, rp_locks); if (!scheduler) - erts_smp_proc_dec_refc(rp); + erts_proc_dec_refc(rp); } @@ -3455,11 +3424,8 @@ terminate_port(Port *prt) send_closed_port_id = NIL; } -#ifdef ERTS_SMP - erts_cancel_smp_ptimer(prt->common.u.alive.ptimer); -#else - erts_cancel_timer(&prt->common.u.alive.tm); -#endif + if (ERTS_PTMR_IS_SET(prt)) + erts_cancel_port_timer(prt); drv = prt->drv_ptr; if ((drv != NULL) && (drv->stop != NULL)) { @@ -5006,24 +4972,6 @@ erts_free_port_names(ErtsPortNames *pnp) erts_free(ERTS_ALC_T_PORT_NAMES, pnp); } -static void schedule_port_timeout(Port *p) -{ - /* - * Scheduling of port timeouts can be done without port locking, but - * since the task handle is stored in the port structure and the ptimer - * structure is protected by the port lock we require the port to be - * locked for now... - * - * TODO: Implement scheduling of port timeouts without locking - * the port. - * /Rickard - */ - ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p)); - erts_port_task_schedule(p->common.id, - &p->timeout_task, - ERTS_PORT_TASK_TIMEOUT); -} - ErlDrvTermData driver_mk_term_nil(void) { return driver_term_nil; @@ -5052,7 +5000,7 @@ void driver_report_exit(ErlDrvPort ix, int status) rp = (scheduler ? erts_proc_lookup(pid) - : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_INC_REFC)); if (!rp) return; @@ -5062,15 +5010,11 @@ void driver_report_exit(ErlDrvPort ix, int status) hp += 3; tuple = TUPLE2(hp, prt->common.id, tuple); - erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined); erts_smp_proc_unlock(rp, rp_locks); if (!scheduler) - erts_smp_proc_dec_refc(rp); + erts_proc_dec_refc(rp); } #define ERTS_B2T_STATES_DEF_STATES_SZ 5 @@ -5352,7 +5296,11 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) case ERL_DRV_MAP: { /* int */ ERTS_DDT_CHK_ENOUGH_ARGS(1); if ((int) ptr[0] < 0) ERTS_DDT_FAIL; - need += MAP_HEADER_SIZE + 1 + 2*ptr[0]; + if (ptr[0] > MAP_SMALL_MAP_LIMIT) { + need += hashmap_over_estimated_heap_size(ptr[0]); + } else { + need += MAP_HEADER_FLATMAP_SZ + 1 + 2*ptr[0]; + } depth -= 2*ptr[0]; if (depth < 0) ERTS_DDT_FAIL; ptr++; @@ -5382,7 +5330,7 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) scheduler = erts_get_scheduler_id() != 0; rp = (scheduler ? erts_proc_lookup(to) - : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC)); + : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC)); if (!rp) { res = 0; goto done; @@ -5507,8 +5455,6 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) ProcBin* pbp; Binary* bp = erts_bin_nrml_alloc(size); ASSERT(bufp); - bp->flags = 0; - bp->orig_size = (SWord) size; erts_refc_init(&bp->refc, 1); sys_memcpy((void *) bp->orig_bytes, (void *) bufp, size); pbp = (ProcBin *) hp; @@ -5582,7 +5528,9 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) mess = make_float(hp); f.fd = *((double *) ptr[0]); - PUT_DOUBLE(f, hp); + if (!erts_isfinite(f.fd)) + ERTS_DDT_FAIL; + PUT_DOUBLE(f, hp); hp += FLOAT_SIZE_OBJECT; ptr++; break; @@ -5598,31 +5546,52 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) case ERL_DRV_MAP: { /* int */ int size = (int)ptr[0]; - Eterm* tp = hp; - Eterm* vp; - map_t *mp; - - *tp = make_arityval(size); - - hp += 1 + size; - mp = (map_t*)hp; - mp->thing_word = MAP_HEADER; - mp->size = size; - mp->keys = make_tuple(tp); - mess = make_map(mp); - - hp += MAP_HEADER_SIZE + size; /* advance "heap" pointer */ - - tp += size; /* point at last key */ - vp = hp - 1; /* point at last value */ - - while(size--) { - *vp-- = ESTACK_POP(stack); - *tp-- = ESTACK_POP(stack); - } - if (!erts_validate_and_sort_map(mp)) - ERTS_DDT_FAIL; - ptr++; + if (size > MAP_SMALL_MAP_LIMIT) { + int ix = 2*size; + ErtsHeapFactory factory; + Eterm* leafs = hp; + + hp += 2*size; + while(ix--) { *--hp = ESTACK_POP(stack); } + + hp += 2*size; + factory.p = NULL; + factory.hp = hp; + /* We assume heap will suffice (see hashmap_over_estimated_heap_size) */ + + mess = erts_hashmap_from_array(&factory, leafs, size, 1); + + if (is_non_value(mess)) + ERTS_DDT_FAIL; + + hp = factory.hp; + } else { + Eterm* tp = hp; + Eterm* vp; + flatmap_t *mp; + + *tp = make_arityval(size); + + hp += 1 + size; + mp = (flatmap_t*)hp; + mp->thing_word = MAP_HEADER_FLATMAP; + mp->size = size; + mp->keys = make_tuple(tp); + mess = make_flatmap(mp); + + hp += MAP_HEADER_FLATMAP_SZ + size; + + tp += size; /* point at last key */ + vp = hp - 1; /* point at last value */ + + while(size--) { + *vp-- = ESTACK_POP(stack); + *tp-- = ESTACK_POP(stack); + } + if (!erts_validate_and_sort_flatmap(mp)) + ERTS_DDT_FAIL; + } + ptr++; break; } @@ -5643,11 +5612,7 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) HRelease(rp, hp_end, hp); } /* send message */ - erts_queue_message(rp, &rp_locks, bp, mess, am_undefined -#ifdef USE_VM_PROBES - , NIL -#endif - ); + erts_queue_message(rp, &rp_locks, bp, mess, am_undefined); } else { if (b2t.ix > b2t.used) @@ -5660,14 +5625,12 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len) HRelease(rp, hp_end, hp); } } -#ifdef ERTS_SMP if (rp) { if (rp_locks) erts_smp_proc_unlock(rp, rp_locks); if (!scheduler) - erts_smp_proc_dec_refc(rp); + erts_proc_dec_refc(rp); } -#endif cleanup_b2t_states(&b2t); DESTROY_ESTACK(stack); return res; @@ -6000,9 +5963,7 @@ driver_alloc_binary(ErlDrvSizeT size) bin = erts_bin_drv_alloc_fnf((Uint) size); if (!bin) return NULL; /* The driver write must take action */ - bin->flags = BIN_FLAG_DRV; erts_refc_init(&bin->refc, 1); - bin->orig_size = (SWord) size; return Binary2ErlDrvBinary(bin); } @@ -6032,7 +5993,6 @@ ErlDrvBinary* driver_realloc_binary(ErlDrvBinary* bin, ErlDrvSizeT size) if (!newbin) return NULL; - newbin->orig_size = size; return Binary2ErlDrvBinary(newbin); } @@ -6616,18 +6576,6 @@ int driver_pushq(ErlDrvPort ix, char* buffer, ErlDrvSizeT len) return code; } -static ERTS_INLINE void -drv_cancel_timer(Port *prt) -{ -#ifdef ERTS_SMP - erts_cancel_smp_ptimer(prt->common.u.alive.ptimer); -#else - erts_cancel_timer(&prt->common.u.alive.tm); -#endif - if (erts_port_task_is_scheduled(&prt->timeout_task)) - erts_port_task_abort(&prt->timeout_task); -} - int driver_set_timer(ErlDrvPort ix, unsigned long t) { Port* prt = erts_drvport2port(ix); @@ -6639,19 +6587,8 @@ int driver_set_timer(ErlDrvPort ix, unsigned long t) if (prt->drv_ptr->timeout == NULL) return -1; - drv_cancel_timer(prt); -#ifdef ERTS_SMP - erts_create_smp_ptimer(&prt->common.u.alive.ptimer, - prt->common.id, - (ErlTimeoutProc) schedule_port_timeout, - t); -#else - erts_set_timer(&prt->common.u.alive.tm, - (ErlTimeoutProc) schedule_port_timeout, - NULL, - prt, - t); -#endif + + erts_set_port_timer(prt, (Sint64) t); return 0; } @@ -6661,28 +6598,28 @@ int driver_cancel_timer(ErlDrvPort ix) if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - drv_cancel_timer(prt); + erts_cancel_port_timer(prt); return 0; } - int driver_read_timer(ErlDrvPort ix, unsigned long* t) { Port* prt = erts_drvport2port(ix); + Sint64 left; ERTS_SMP_CHK_NO_PROC_LOCKS; if (prt == ERTS_INVALID_ERL_DRV_PORT) return -1; ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); -#ifdef ERTS_SMP - *t = (prt->common.u.alive.ptimer - ? erts_time_left(&prt->common.u.alive.ptimer->timer.tm) - : 0); -#else - *t = erts_time_left(&prt->common.u.alive.tm); -#endif + + left = erts_read_port_timer(prt); + if (left < 0) + left = 0; + + *t = (unsigned long) left; + return 0; } @@ -6706,7 +6643,7 @@ static void ref_to_driver_monitor(Eterm ref, ErlDrvMonitor *mon) { RefThing *refp; ASSERT(is_internal_ref(ref)); - ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor)); + ERTS_CT_ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor)); refp = ref_thing_ptr(ref); memset(mon,0,sizeof(ErlDrvMonitor)); memcpy(mon,refp,sizeof(RefThing)); |