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Diffstat (limited to 'erts/emulator/beam/erl_db.c')
-rw-r--r--erts/emulator/beam/erl_db.c96
1 files changed, 25 insertions, 71 deletions
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 7409564167..1ba1048afa 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -224,8 +224,9 @@ Export ets_select_continue_exp;
static Export ets_delete_continue_exp;
static void
-free_dbtable(DbTable* tb)
+free_dbtable(void *vtb)
{
+ DbTable *tb = (DbTable *) vtb;
#ifdef HARDDEBUG
if (erts_smp_atomic_read_nob(&tb->common.memory_size) != sizeof(DbTable)) {
erts_fprintf(stderr, "ets: free_dbtable memory remain=%ld fix=%x\n",
@@ -250,20 +251,8 @@ free_dbtable(DbTable* tb)
#endif
ASSERT(is_immed(tb->common.heir_data));
erts_db_free(ERTS_ALC_T_DB_TABLE, tb, (void *) tb, sizeof(DbTable));
- ERTS_SMP_MEMORY_BARRIER;
}
-#ifdef ERTS_SMP
-static void
-chk_free_dbtable(void *vtb)
-{
- DbTable * tb = (DbTable *) vtb;
- ERTS_THR_MEMORY_BARRIER;
- if (erts_refc_dectest(&tb->common.ref, 0) == 0)
- free_dbtable(tb);
-}
-#endif
-
static void schedule_free_dbtable(DbTable* tb)
{
/*
@@ -274,15 +263,10 @@ static void schedule_free_dbtable(DbTable* tb)
* need to unlock the table lock after this
* function has returned).
*/
-#ifdef ERTS_SMP
- int scheds = erts_get_max_no_executing_schedulers();
- ASSERT(scheds >= 1);
ASSERT(erts_refc_read(&tb->common.ref, 0) == 0);
- erts_refc_init(&tb->common.ref, scheds);
- erts_schedule_multi_misc_aux_work(0, scheds, chk_free_dbtable, tb);
-#else
- free_dbtable(tb);
-#endif
+ erts_schedule_thr_prgr_later_op(free_dbtable,
+ (void *) tb,
+ &tb->release.data);
}
static ERTS_INLINE void db_init_lock(DbTable* tb, int use_frequent_read_lock,
@@ -541,10 +525,6 @@ static int remove_named_tab(DbTable *tb, int have_lock)
&rwlock);
#ifdef ERTS_SMP
if (!have_lock && erts_smp_rwmtx_tryrwlock(rwlock) == EBUSY) {
- /*
- * We keep our increased refc over this op in order to
- * prevent the table from disapearing.
- */
db_unlock(tb, LCK_WRITE);
erts_smp_rwmtx_rwlock(rwlock);
db_lock(tb, LCK_WRITE);
@@ -1479,7 +1459,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
"** Too many db tables **\n");
free_heir_data(tb);
tb->common.meth->db_free_table(tb);
- free_dbtable(tb);
+ free_dbtable((void *) tb);
BIF_ERROR(BIF_P, SYSTEM_LIMIT);
}
@@ -2814,7 +2794,6 @@ void init_db(void)
{
DbTable init_tb;
int i;
- extern BeamInstr* em_apply_bif;
Eterm *hp;
unsigned bits;
size_t size;
@@ -2848,7 +2827,7 @@ void init_db(void)
else
db_max_tabs = user_requested_db_max_tabs;
- bits = erts_fit_in_bits(db_max_tabs-1);
+ bits = erts_fit_in_bits_int32(db_max_tabs-1);
if (bits > SMALL_BITS) {
erl_exit(1,"Max limit for ets tabled too high %u (max %u).",
db_max_tabs, ((Uint)1)<<SMALL_BITS);
@@ -2945,49 +2924,24 @@ void init_db(void)
}
/* Non visual BIF to trap to. */
- memset(&ets_select_delete_continue_exp, 0, sizeof(Export));
- ets_select_delete_continue_exp.address =
- &ets_select_delete_continue_exp.code[3];
- ets_select_delete_continue_exp.code[0] = am_ets;
- ets_select_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_select_delete_continue_exp.code[2] = 1;
- ets_select_delete_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_delete_continue_exp.code[4] =
- (BeamInstr) &ets_select_delete_1;
+ erts_init_trap_export(&ets_select_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_select_delete_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_count_continue_exp, 0, sizeof(Export));
- ets_select_count_continue_exp.address =
- &ets_select_count_continue_exp.code[3];
- ets_select_count_continue_exp.code[0] = am_ets;
- ets_select_count_continue_exp.code[1] = am_atom_put("count_trap",11);
- ets_select_count_continue_exp.code[2] = 1;
- ets_select_count_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_count_continue_exp.code[4] =
- (BeamInstr) &ets_select_count_1;
+ erts_init_trap_export(&ets_select_count_continue_exp,
+ am_ets, am_atom_put("count_trap",11), 1,
+ &ets_select_count_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_continue_exp, 0, sizeof(Export));
- ets_select_continue_exp.address =
- &ets_select_continue_exp.code[3];
- ets_select_continue_exp.code[0] = am_ets;
- ets_select_continue_exp.code[1] = am_atom_put("select_trap",11);
- ets_select_continue_exp.code[2] = 1;
- ets_select_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_continue_exp.code[4] =
- (BeamInstr) &ets_select_trap_1;
+ erts_init_trap_export(&ets_select_continue_exp,
+ am_ets, am_atom_put("select_trap",11), 1,
+ &ets_select_trap_1);
/* Non visual BIF to trap to. */
- memset(&ets_delete_continue_exp, 0, sizeof(Export));
- ets_delete_continue_exp.address = &ets_delete_continue_exp.code[3];
- ets_delete_continue_exp.code[0] = am_ets;
- ets_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_delete_continue_exp.code[2] = 1;
- ets_delete_continue_exp.code[3] = (BeamInstr) em_apply_bif;
- ets_delete_continue_exp.code[4] = (BeamInstr) &ets_delete_trap;
+ erts_init_trap_export(&ets_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_delete_trap);
hp = ms_delete_all_buff;
ms_delete_all = CONS(hp, am_true, NIL);
@@ -3120,7 +3074,7 @@ retry:
if (to_proc == NULL) {
return 0; /* heir not alive, table still mine */
}
- if (erts_cmp_timeval(&to_proc->started, &tb->common.heir_started) != 0) {
+ if (to_proc->started_interval != tb->common.heir_started_interval) {
erts_smp_proc_unlock(to_proc, to_locks);
return 0; /* heir dead and pid reused, table still mine */
}
@@ -3516,14 +3470,14 @@ static void set_heir(Process* me, DbTable* tb, Eterm heir, UWord heir_data)
return;
}
if (heir == me->id) {
- tb->common.heir_started = me->started;
+ erts_ensure_later_proc_interval(me->started_interval);
+ tb->common.heir_started_interval = me->started_interval;
}
else {
- Process* heir_proc= erts_pid2proc_opt(me, ERTS_PROC_LOCK_MAIN, heir,
- 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ Process* heir_proc= erts_proc_lookup(heir);
if (heir_proc != NULL) {
- tb->common.heir_started = heir_proc->started;
- erts_smp_proc_dec_refc(heir_proc);
+ erts_ensure_later_proc_interval(heir_proc->started_interval);
+ tb->common.heir_started_interval = heir_proc->started_interval;
} else {
tb->common.heir = am_none;
}
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