diff options
Diffstat (limited to 'erts/emulator/beam/erl_db.c')
| -rw-r--r-- | erts/emulator/beam/erl_db.c | 338 |
1 files changed, 143 insertions, 195 deletions
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c index 6d4a895ef6..a76d769283 100644 --- a/erts/emulator/beam/erl_db.c +++ b/erts/emulator/beam/erl_db.c @@ -44,7 +44,7 @@ #include "erl_binary.h" -erts_smp_atomic_t erts_ets_misc_mem_size; +erts_atomic_t erts_ets_misc_mem_size; /* ** Utility macros @@ -61,15 +61,9 @@ enum DbIterSafety { ITER_SAFE_LOCKED, /* Safe while table is locked, not between trap calls */ ITER_SAFE /* No need to fixate at all */ }; -#ifdef ERTS_SMP # define ITERATION_SAFETY(Proc,Tab) \ ((IS_TREE_TABLE((Tab)->common.status) || ONLY_WRITER(Proc,Tab)) ? ITER_SAFE \ : (((Tab)->common.status & DB_FINE_LOCKED) ? ITER_UNSAFE : ITER_SAFE_LOCKED)) -#else -# define ITERATION_SAFETY(Proc,Tab) \ - ((IS_TREE_TABLE((Tab)->common.status) || ONLY_WRITER(Proc,Tab)) \ - ? ITER_SAFE : ITER_SAFE_LOCKED) -#endif #define DID_TRAP(P,Ret) (!is_value(Ret) && ((P)->freason == TRAP)) @@ -195,7 +189,7 @@ static void delete_sched_table(Process *c_p, DbTable *tb); static void table_dec_refc(DbTable *tb, erts_aint_t min_val) { - if (erts_smp_refc_dectest(&tb->common.refc, min_val) == 0) + if (erts_refc_dectest(&tb->common.refc, min_val) == 0) schedule_free_dbtable(tb); } @@ -209,21 +203,21 @@ static ERTS_INLINE void make_btid(DbTable *tb) { Binary *btid = erts_create_magic_indirection(db_table_tid_destructor); - erts_smp_atomic_t *tbref = erts_smp_binary_to_magic_indirection(btid); - erts_smp_atomic_init_nob(tbref, (erts_aint_t) tb); + erts_atomic_t *tbref = erts_binary_to_magic_indirection(btid); + erts_atomic_init_nob(tbref, (erts_aint_t) tb); tb->common.btid = btid; /* * Table and magic indirection refer eachother, * and table is refered once by being alive... */ - erts_smp_refc_init(&tb->common.refc, 2); + erts_refc_init(&tb->common.refc, 2); erts_refc_inc(&btid->intern.refc, 1); } static ERTS_INLINE DbTable* btid2tab(Binary* btid) { - erts_smp_atomic_t *tbref = erts_smp_binary_to_magic_indirection(btid); - return (DbTable *) erts_smp_atomic_read_nob(tbref); + erts_atomic_t *tbref = erts_binary_to_magic_indirection(btid); + return (DbTable *) erts_atomic_read_nob(tbref); } static DbTable * @@ -231,7 +225,7 @@ tid2tab(Eterm tid) { DbTable *tb; Binary *btid; - erts_smp_atomic_t *tbref; + erts_atomic_t *tbref; if (!is_internal_magic_ref(tid)) return NULL; @@ -239,8 +233,8 @@ tid2tab(Eterm tid) if (ERTS_MAGIC_BIN_DESTRUCTOR(btid) != db_table_tid_destructor) return NULL; - tbref = erts_smp_binary_to_magic_indirection(btid); - tb = (DbTable *) erts_smp_atomic_read_nob(tbref); + tbref = erts_binary_to_magic_indirection(btid); + tb = (DbTable *) erts_atomic_read_nob(tbref); ASSERT(!tb || tb->common.btid == btid); @@ -250,11 +244,11 @@ tid2tab(Eterm tid) static ERTS_INLINE int is_table_alive(DbTable *tb) { - erts_smp_atomic_t *tbref; + erts_atomic_t *tbref; DbTable *rtb; - tbref = erts_smp_binary_to_magic_indirection(tb->common.btid); - rtb = (DbTable *) erts_smp_atomic_read_nob(tbref); + tbref = erts_binary_to_magic_indirection(tb->common.btid); + rtb = (DbTable *) erts_atomic_read_nob(tbref); ASSERT(!rtb || rtb == tb); @@ -264,11 +258,7 @@ is_table_alive(DbTable *tb) static ERTS_INLINE int is_table_named(DbTable *tb) { -#ifdef ERTS_SMP return tb->common.type & DB_NAMED_TABLE; -#else - return tb->common.status & DB_NAMED_TABLE; -#endif } @@ -277,8 +267,8 @@ tid_clear(Process *c_p, DbTable *tb) { DbTable *rtb; Binary *btid = tb->common.btid; - erts_smp_atomic_t *tbref = erts_smp_binary_to_magic_indirection(btid); - rtb = (DbTable *) erts_smp_atomic_xchg_nob(tbref, (erts_aint_t) NULL); + erts_atomic_t *tbref = erts_binary_to_magic_indirection(btid); + rtb = (DbTable *) erts_atomic_xchg_nob(tbref, (erts_aint_t) NULL); ASSERT(!rtb || tb == rtb); if (rtb) { table_dec_refc(tb, 1); @@ -297,13 +287,11 @@ make_tid(Process *c_p, DbTable *tb) /* ** The meta hash table of all NAMED ets tables */ -#ifdef ERTS_SMP # define META_NAME_TAB_LOCK_CNT 16 union { - erts_smp_rwmtx_t lck; + erts_rwmtx_t lck; byte _cache_line_alignment[64]; }meta_name_tab_rwlocks[META_NAME_TAB_LOCK_CNT]; -#endif static struct meta_name_tab_entry { union { Eterm name_atom; @@ -319,13 +307,11 @@ static unsigned meta_name_tab_mask; static ERTS_INLINE struct meta_name_tab_entry* meta_name_tab_bucket(Eterm name, - erts_smp_rwmtx_t** lockp) + erts_rwmtx_t** lockp) { unsigned bix = atom_val(name) & meta_name_tab_mask; struct meta_name_tab_entry* bucket = &meta_name_tab[bix]; -#ifdef ERTS_SMP *lockp = &meta_name_tab_rwlocks[bix % META_NAME_TAB_LOCK_CNT].lck; -#endif return bucket; } @@ -390,16 +376,14 @@ free_dbtable(void *vtb) { DbTable *tb = (DbTable *) vtb; #ifdef HARDDEBUG - if (erts_smp_atomic_read_nob(&tb->common.memory_size) != sizeof(DbTable)) { + if (erts_atomic_read_nob(&tb->common.memory_size) != sizeof(DbTable)) { erts_fprintf(stderr, "ets: free_dbtable memory remain=%ld fix=%x\n", - erts_smp_atomic_read_nob(&tb->common.memory_size)-sizeof(DbTable), + erts_atomic_read_nob(&tb->common.memory_size)-sizeof(DbTable), tb->common.fixations); } #endif -#ifdef ERTS_SMP - erts_smp_rwmtx_destroy(&tb->common.rwlock); - erts_smp_mtx_destroy(&tb->common.fixlock); -#endif + erts_rwmtx_destroy(&tb->common.rwlock); + erts_mtx_destroy(&tb->common.fixlock); ASSERT(is_immed(tb->common.heir_data)); if (tb->common.btid) @@ -419,8 +403,8 @@ static void schedule_free_dbtable(DbTable* tb) * Caller is *not* allowed to access the specialized part * (hash or tree) of *tb after this function has returned. */ - ASSERT(erts_smp_refc_read(&tb->common.refc, 0) == 0); - ASSERT(erts_smp_refc_read(&tb->common.fix_count, 0) == 0); + ASSERT(erts_refc_read(&tb->common.refc, 0) == 0); + ASSERT(erts_refc_read(&tb->common.fix_count, 0) == 0); erts_schedule_thr_prgr_later_cleanup_op(free_dbtable, (void *) tb, &tb->release.data, @@ -435,7 +419,7 @@ save_sched_table(Process *c_p, DbTable *tb) ASSERT(esdp); esdp->ets_tables.count++; - erts_smp_refc_inc(&tb->common.refc, 1); + erts_refc_inc(&tb->common.refc, 1); first = esdp->ets_tables.clist; if (!first) { @@ -525,11 +509,11 @@ save_owned_table(Process *c_p, DbTable *tb) { DbTable *first; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); + erts_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); first = (DbTable*) erts_psd_get(c_p, ERTS_PSD_ETS_OWNED_TABLES); - erts_smp_refc_inc(&tb->common.refc, 1); + erts_refc_inc(&tb->common.refc, 1); if (!first) { tb->common.owned.next = tb->common.owned.prev = tb; @@ -541,13 +525,13 @@ save_owned_table(Process *c_p, DbTable *tb) tb->common.owned.prev->common.owned.next = tb; first->common.owned.prev = tb; } - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + erts_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); } static ERTS_INLINE void delete_owned_table(Process *p, DbTable *tb) { - erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS); + erts_proc_lock(p, ERTS_PROC_LOCK_STATUS); if (tb->common.owned.next == tb) { DbTable* old; ASSERT(tb->common.owned.prev == tb); @@ -570,38 +554,33 @@ delete_owned_table(Process *p, DbTable *tb) if (tb == first) erts_psd_set(p, ERTS_PSD_ETS_OWNED_TABLES, tb->common.owned.next); } - erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS); table_dec_refc(tb, 1); } static ERTS_INLINE void db_init_lock(DbTable* tb, int use_frequent_read_lock) { -#ifdef ERTS_SMP - erts_smp_rwmtx_opt_t rwmtx_opt = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; + erts_rwmtx_opt_t rwmtx_opt = ERTS_RWMTX_OPT_DEFAULT_INITER; if (use_frequent_read_lock) - rwmtx_opt.type = ERTS_SMP_RWMTX_TYPE_FREQUENT_READ; + rwmtx_opt.type = ERTS_RWMTX_TYPE_FREQUENT_READ; if (erts_ets_rwmtx_spin_count >= 0) rwmtx_opt.main_spincount = erts_ets_rwmtx_spin_count; -#endif -#ifdef ERTS_SMP - erts_smp_rwmtx_init_opt(&tb->common.rwlock, &rwmtx_opt, "db_tab", + erts_rwmtx_init_opt(&tb->common.rwlock, &rwmtx_opt, "db_tab", tb->common.the_name, ERTS_LOCK_FLAGS_CATEGORY_DB); - erts_smp_mtx_init(&tb->common.fixlock, "db_tab_fix", + erts_mtx_init(&tb->common.fixlock, "db_tab_fix", tb->common.the_name, ERTS_LOCK_FLAGS_CATEGORY_DB); tb->common.is_thread_safe = !(tb->common.status & DB_FINE_LOCKED); -#endif } static ERTS_INLINE void db_lock(DbTable* tb, db_lock_kind_t kind) { -#ifdef ERTS_SMP if (tb->common.type & DB_FINE_LOCKED) { if (kind == LCK_WRITE) { - erts_smp_rwmtx_rwlock(&tb->common.rwlock); + erts_rwmtx_rwlock(&tb->common.rwlock); tb->common.is_thread_safe = 1; } else { - erts_smp_rwmtx_rlock(&tb->common.rwlock); + erts_rwmtx_rlock(&tb->common.rwlock); ASSERT(!tb->common.is_thread_safe); } } @@ -610,14 +589,13 @@ static ERTS_INLINE void db_lock(DbTable* tb, db_lock_kind_t kind) switch (kind) { case LCK_WRITE: case LCK_WRITE_REC: - erts_smp_rwmtx_rwlock(&tb->common.rwlock); + erts_rwmtx_rwlock(&tb->common.rwlock); break; default: - erts_smp_rwmtx_rlock(&tb->common.rwlock); + erts_rwmtx_rlock(&tb->common.rwlock); } ASSERT(tb->common.is_thread_safe); } -#endif } static ERTS_INLINE void db_unlock(DbTable* tb, db_lock_kind_t kind) @@ -627,16 +605,15 @@ static ERTS_INLINE void db_unlock(DbTable* tb, db_lock_kind_t kind) * DbTable structure. That is, ONLY the SMP case is allowed * to follow the tb pointer! */ -#ifdef ERTS_SMP if (tb->common.type & DB_FINE_LOCKED) { if (kind == LCK_WRITE) { ASSERT(tb->common.is_thread_safe); tb->common.is_thread_safe = 0; - erts_smp_rwmtx_rwunlock(&tb->common.rwlock); + erts_rwmtx_rwunlock(&tb->common.rwlock); } else { ASSERT(!tb->common.is_thread_safe); - erts_smp_rwmtx_runlock(&tb->common.rwlock); + erts_rwmtx_runlock(&tb->common.rwlock); } } else { @@ -644,13 +621,12 @@ static ERTS_INLINE void db_unlock(DbTable* tb, db_lock_kind_t kind) switch (kind) { case LCK_WRITE: case LCK_WRITE_REC: - erts_smp_rwmtx_rwunlock(&tb->common.rwlock); + erts_rwmtx_rwunlock(&tb->common.rwlock); break; default: - erts_smp_rwmtx_runlock(&tb->common.rwlock); + erts_rwmtx_runlock(&tb->common.rwlock); } } -#endif } static ERTS_INLINE @@ -661,7 +637,7 @@ DbTable* db_get_table_aux(Process *p, int meta_already_locked) { DbTable *tb; - erts_smp_rwmtx_t *mtl = NULL; + erts_rwmtx_t *mtl = NULL; /* * IMPORTANT: Only scheduler threads are allowed @@ -673,9 +649,9 @@ DbTable* db_get_table_aux(Process *p, if (is_atom(id)) { struct meta_name_tab_entry* bucket = meta_name_tab_bucket(id,&mtl); if (!meta_already_locked) - erts_smp_rwmtx_rlock(mtl); + erts_rwmtx_rlock(mtl); else{ - ERTS_SMP_LC_ASSERT(erts_lc_rwmtx_is_rlocked(mtl) + ERTS_LC_ASSERT(erts_lc_rwmtx_is_rlocked(mtl) || erts_lc_rwmtx_is_rwlocked(mtl)); mtl = NULL; } @@ -709,7 +685,7 @@ DbTable* db_get_table_aux(Process *p, } } if (mtl) - erts_smp_rwmtx_runlock(mtl); + erts_rwmtx_runlock(mtl); return tb; } @@ -725,12 +701,12 @@ DbTable* db_get_table(Process *p, static int insert_named_tab(Eterm name_atom, DbTable* tb, int have_lock) { int ret = 0; - erts_smp_rwmtx_t* rwlock; + erts_rwmtx_t* rwlock; struct meta_name_tab_entry* new_entry; struct meta_name_tab_entry* bucket = meta_name_tab_bucket(name_atom, &rwlock); if (!have_lock) - erts_smp_rwmtx_rwlock(rwlock); + erts_rwmtx_rwlock(rwlock); if (bucket->pu.tb == NULL) { /* empty */ new_entry = bucket; @@ -778,27 +754,25 @@ static int insert_named_tab(Eterm name_atom, DbTable* tb, int have_lock) done: if (!have_lock) - erts_smp_rwmtx_rwunlock(rwlock); + erts_rwmtx_rwunlock(rwlock); return ret; } static int remove_named_tab(DbTable *tb, int have_lock) { int ret = 0; - erts_smp_rwmtx_t* rwlock; + erts_rwmtx_t* rwlock; Eterm name_atom = tb->common.the_name; struct meta_name_tab_entry* bucket = meta_name_tab_bucket(name_atom, &rwlock); ASSERT(is_table_named(tb)); -#ifdef ERTS_SMP - if (!have_lock && erts_smp_rwmtx_tryrwlock(rwlock) == EBUSY) { + if (!have_lock && erts_rwmtx_tryrwlock(rwlock) == EBUSY) { db_unlock(tb, LCK_WRITE); - erts_smp_rwmtx_rwlock(rwlock); + erts_rwmtx_rwlock(rwlock); db_lock(tb, LCK_WRITE); } -#endif - ERTS_SMP_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(rwlock)); + ERTS_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(rwlock)); if (bucket->pu.tb == NULL) { goto done; @@ -851,7 +825,7 @@ static int remove_named_tab(DbTable *tb, int have_lock) done: if (!have_lock) - erts_smp_rwmtx_rwunlock(rwlock); + erts_rwmtx_rwunlock(rwlock); return ret; } @@ -860,11 +834,11 @@ done: */ static ERTS_INLINE void local_fix_table(DbTable* tb) { - erts_smp_refc_inc(&tb->common.fix_count, 1); + erts_refc_inc(&tb->common.fix_count, 1); } static ERTS_INLINE void local_unfix_table(DbTable* tb) { - if (erts_smp_refc_dectest(&tb->common.fix_count, 0) == 0) { + if (erts_refc_dectest(&tb->common.fix_count, 0) == 0) { ASSERT(IS_HASH_TABLE(tb->common.status)); db_unfix_table_hash(&(tb->hash)); } @@ -1505,7 +1479,7 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2) DbTable* tb; Eterm ret; Eterm old_name; - erts_smp_rwmtx_t *lck1, *lck2; + erts_rwmtx_t *lck1, *lck2; #ifdef HARDDEBUG erts_fprintf(stderr, @@ -1528,7 +1502,7 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2) if (lck1 == lck2) lck2 = NULL; else if (lck1 > lck2) { - erts_smp_rwmtx_t *tmp = lck1; + erts_rwmtx_t *tmp = lck1; lck1 = lck2; lck2 = tmp; } @@ -1546,9 +1520,9 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2) } } - erts_smp_rwmtx_rwlock(lck1); + erts_rwmtx_rwlock(lck1); if (lck2) - erts_smp_rwmtx_rwlock(lck2); + erts_rwmtx_rwlock(lck2); tb = db_get_table_aux(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE, 1); if (!tb) @@ -1568,16 +1542,16 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2) tb->common.the_name = BIF_ARG_2; db_unlock(tb, LCK_WRITE); - erts_smp_rwmtx_rwunlock(lck1); + erts_rwmtx_rwunlock(lck1); if (lck2) - erts_smp_rwmtx_rwunlock(lck2); + erts_rwmtx_rwunlock(lck2); BIF_RET(ret); badarg: if (tb) db_unlock(tb, LCK_WRITE); - erts_smp_rwmtx_rwunlock(lck1); + erts_rwmtx_rwunlock(lck1); if (lck2) - erts_smp_rwmtx_rwunlock(lck2); + erts_rwmtx_rwunlock(lck2); BIF_ERROR(BIF_P, BADARG); } @@ -1598,9 +1572,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) Uint32 status; Sint keypos; int is_named, is_compressed; -#ifdef ERTS_SMP int is_fine_locked, frequent_read; -#endif #ifdef DEBUG int cret; #endif @@ -1616,10 +1588,8 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) status = DB_SET | DB_PROTECTED; keypos = 1; is_named = 0; -#ifdef ERTS_SMP is_fine_locked = 0; frequent_read = 0; -#endif heir = am_none; heir_data = (UWord) am_undefined; is_compressed = erts_ets_always_compress; @@ -1647,30 +1617,18 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) keypos = signed_val(tp[2]); } else if (tp[1] == am_write_concurrency) { -#ifdef ERTS_SMP if (tp[2] == am_true) { is_fine_locked = 1; } else if (tp[2] == am_false) { is_fine_locked = 0; } else break; -#else - if ((tp[2] != am_true) && (tp[2] != am_false)) { - break; - } -#endif } else if (tp[1] == am_read_concurrency) { -#ifdef ERTS_SMP if (tp[2] == am_true) { frequent_read = 1; } else if (tp[2] == am_false) { frequent_read = 0; } else break; -#else - if ((tp[2] != am_true) && (tp[2] != am_false)) { - break; - } -#endif } else if (tp[1] == am_heir && tp[2] == am_none) { @@ -1712,11 +1670,9 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) } if (IS_HASH_TABLE(status)) { meth = &db_hash; -#ifdef ERTS_SMP if (is_fine_locked && !(status & DB_PRIVATE)) { status |= DB_FINE_LOCKED; } -#endif } else if (IS_TREE_TABLE(status)) { meth = &db_tree; @@ -1725,10 +1681,8 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) BIF_ERROR(BIF_P, BADARG); } -#ifdef ERTS_SMP if (frequent_read && !(status & DB_PRIVATE)) status |= DB_FREQ_READ; -#endif /* we create table outside any table lock * and take the unusal cost of destroy table if it @@ -1737,27 +1691,25 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) { DbTable init_tb; - erts_smp_atomic_init_nob(&init_tb.common.memory_size, 0); + erts_atomic_init_nob(&init_tb.common.memory_size, 0); tb = (DbTable*) erts_db_alloc(ERTS_ALC_T_DB_TABLE, &init_tb, sizeof(DbTable)); - erts_smp_atomic_init_nob(&tb->common.memory_size, - erts_smp_atomic_read_nob(&init_tb.common.memory_size)); + erts_atomic_init_nob(&tb->common.memory_size, + erts_atomic_read_nob(&init_tb.common.memory_size)); } tb->common.meth = meth; tb->common.the_name = BIF_ARG_1; tb->common.status = status; -#ifdef ERTS_SMP tb->common.type = status & ERTS_ETS_TABLE_TYPES; /* Note, 'type' is *read only* from now on... */ -#endif - erts_smp_refc_init(&tb->common.fix_count, 0); + erts_refc_init(&tb->common.fix_count, 0); db_init_lock(tb, status & (DB_FINE_LOCKED|DB_FREQ_READ)); tb->common.keypos = keypos; tb->common.owner = BIF_P->common.id; set_heir(BIF_P, tb, heir, heir_data); - erts_smp_atomic_init_nob(&tb->common.nitems, 0); + erts_atomic_init_nob(&tb->common.nitems, 0); tb->common.fixing_procs = NULL; tb->common.compress = is_compressed; @@ -1801,6 +1753,28 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2) BIF_RET(ret); } +/* +** Retrieves the tid() of a named ets table. +*/ +BIF_RETTYPE ets_whereis_1(BIF_ALIST_1) +{ + DbTable* tb; + Eterm res; + + if (is_not_atom(BIF_ARG_1)) { + BIF_ERROR(BIF_P, BADARG); + } + + if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_INFO, LCK_READ)) == NULL) { + BIF_RET(am_undefined); + } + + res = make_tid(BIF_P, tb); + db_unlock(tb, LCK_READ); + + BIF_RET(res); +} + /* ** The lookup BIF */ @@ -1940,7 +1914,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1) * Process 'rp' might be exiting, but our table lock prevents it * from terminating as it cannot complete erts_db_process_exiting(). */ - ASSERT(!(ERTS_PSFLG_FREE & erts_smp_atomic32_read_nob(&rp->state))); + ASSERT(!(ERTS_PSFLG_FREE & erts_atomic32_read_nob(&rp->state))); delete_owned_table(rp, tb); BIF_P->flags |= F_USING_DB; @@ -2015,12 +1989,12 @@ BIF_RETTYPE ets_give_away_3(BIF_ALIST_3) db_unlock(tb,LCK_WRITE); send_ets_transfer_message(BIF_P, to_proc, &to_locks, tb, BIF_ARG_3); - erts_smp_proc_unlock(to_proc, to_locks); + erts_proc_unlock(to_proc, to_locks); UnUseTmpHeap(5,BIF_P); BIF_RET(am_true); badarg: - if (to_proc != NULL && to_proc != BIF_P) erts_smp_proc_unlock(to_proc, to_locks); + if (to_proc != NULL && to_proc != BIF_P) erts_proc_unlock(to_proc, to_locks); if (tb != NULL) db_unlock(tb, LCK_WRITE); BIF_ERROR(BIF_P, BADARG); } @@ -2244,7 +2218,7 @@ BIF_RETTYPE ets_select_delete_2(BIF_ALIST_2) if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE)) == NULL) { BIF_ERROR(BIF_P, BADARG); } - nitems = erts_smp_atomic_read_nob(&tb->common.nitems); + nitems = erts_atomic_read_nob(&tb->common.nitems); tb->common.meth->db_delete_all_objects(BIF_P, tb); db_unlock(tb, LCK_WRITE); BIF_RET(erts_make_integer(nitems,BIF_P)); @@ -2295,7 +2269,7 @@ BIF_RETTYPE ets_select_delete_2(BIF_ALIST_2) */ struct ErtsEtsAllReq_ { - erts_smp_atomic32_t refc; + erts_atomic32_t refc; Process *proc; ErtsOIRefStorage ref; ErtsEtsAllReqList list[1]; /* one per scheduler */ @@ -2428,7 +2402,7 @@ ets_all_reply(ErtsSchedulerData *esdp, ErtsEtsAllReq **reqpp, erts_proc_dec_refc(reqp->proc); - if (erts_smp_atomic32_dec_read_nob(&reqp->refc) == 0) + if (erts_atomic32_dec_read_nob(&reqp->refc) == 0) erts_free(ERTS_ALC_T_ETS_ALL_REQ, reqp); *reqpp = NULL; @@ -2516,19 +2490,17 @@ BIF_RETTYPE ets_internal_request_all_0(BIF_ALIST_0) Eterm ref = erts_make_ref(BIF_P); ErtsEtsAllReq *req = erts_alloc(ERTS_ALC_T_ETS_ALL_REQ, ERTS_ETS_ALL_REQ_SIZE); - erts_smp_atomic32_init_nob(&req->refc, + erts_atomic32_init_nob(&req->refc, (erts_aint32_t) erts_no_schedulers); erts_oiref_storage_save(&req->ref, ref); req->proc = BIF_P; erts_proc_add_refc(BIF_P, (Sint) erts_no_schedulers); -#ifdef ERTS_SMP if (erts_no_schedulers > 1) erts_schedule_multi_misc_aux_work(1, erts_no_schedulers, handle_ets_all_request, (void *) req); -#endif handle_ets_all_request((void *) req); BIF_RET(ref); @@ -3176,7 +3148,8 @@ BIF_RETTYPE ets_info_1(BIF_ALIST_1) static Eterm fields[] = {am_protection, am_keypos, am_type, am_named_table, am_node, am_size, am_name, am_heir, am_owner, am_memory, am_compressed, am_write_concurrency, - am_read_concurrency}; + am_read_concurrency, + am_id}; Eterm results[sizeof(fields)/sizeof(Eterm)]; DbTable* tb; Eterm res; @@ -3212,7 +3185,7 @@ BIF_RETTYPE ets_info_1(BIF_ALIST_1) if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_INFO, LCK_READ)) == NULL || tb->common.owner != owner) { if (BIF_P != rp) - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN); + erts_proc_unlock(rp, ERTS_PROC_LOCK_MAIN); if (is_atom(BIF_ARG_1) || is_small(BIF_ARG_1)) { BIF_RET(am_undefined); } @@ -3226,7 +3199,7 @@ BIF_RETTYPE ets_info_1(BIF_ALIST_1) db_unlock(tb, LCK_READ); /*if (rp != NULL && rp != BIF_P) - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN);*/ + erts_proc_unlock(rp, ERTS_PROC_LOCK_MAIN);*/ hp = HAlloc(BIF_P, 5*sizeof(fields)/sizeof(Eterm)); res = NIL; @@ -3345,11 +3318,10 @@ void init_db(ErtsDbSpinCount db_spin_count) unsigned bits; size_t size; -#ifdef ERTS_SMP int max_spin_count = (1 << 15) - 1; /* internal limit */ - erts_smp_rwmtx_opt_t rwmtx_opt = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER; - rwmtx_opt.type = ERTS_SMP_RWMTX_TYPE_FREQUENT_READ; - rwmtx_opt.lived = ERTS_SMP_RWMTX_LONG_LIVED; + erts_rwmtx_opt_t rwmtx_opt = ERTS_RWMTX_OPT_DEFAULT_INITER; + rwmtx_opt.type = ERTS_RWMTX_TYPE_FREQUENT_READ; + rwmtx_opt.lived = ERTS_RWMTX_LONG_LIVED; switch (db_spin_count) { case ERTS_DB_SPNCNT_NONE: @@ -3389,13 +3361,12 @@ void init_db(ErtsDbSpinCount db_spin_count) rwmtx_opt.main_spincount = erts_ets_rwmtx_spin_count; for (i=0; i<META_NAME_TAB_LOCK_CNT; i++) { - erts_smp_rwmtx_init_opt(&meta_name_tab_rwlocks[i].lck, &rwmtx_opt, + erts_rwmtx_init_opt(&meta_name_tab_rwlocks[i].lck, &rwmtx_opt, "meta_name_tab", make_small(i), ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_DB); } -#endif - erts_smp_atomic_init_nob(&erts_ets_misc_mem_size, 0); + erts_atomic_init_nob(&erts_ets_misc_mem_size, 0); db_initialize_util(); if (user_requested_db_max_tabs < DB_DEF_MAX_TABS) @@ -3496,14 +3467,14 @@ retry: if (tb->common.owner != p->common.id) { if (to_proc != NULL ) { - erts_smp_proc_unlock(to_proc, to_locks); + erts_proc_unlock(to_proc, to_locks); } db_unlock(tb,LCK_WRITE); return !0; /* ok, someone already gave my table away */ } if (tb->common.heir != to_pid) { /* someone changed the heir */ if (to_proc != NULL ) { - erts_smp_proc_unlock(to_proc, to_locks); + erts_proc_unlock(to_proc, to_locks); } if (to_pid == p->common.id || to_pid == am_none) { return 0; /* no real heir, table still mine */ @@ -3516,7 +3487,7 @@ retry: } if (to_proc->common.u.alive.started_interval != tb->common.heir_started_interval) { - erts_smp_proc_unlock(to_proc, to_locks); + erts_proc_unlock(to_proc, to_locks); return 0; /* heir dead and pid reused, table still mine */ } @@ -3533,7 +3504,7 @@ retry: heir_data = tpv[1]; } send_ets_transfer_message(p, to_proc, &to_locks, tb, heir_data); - erts_smp_proc_unlock(to_proc, to_locks); + erts_proc_unlock(to_proc, to_locks); return !0; } @@ -3584,21 +3555,17 @@ static SWord proc_cleanup_fixed_table(Process* p, DbFixation* fix) db_lock(tb, LCK_WRITE_REC); if (!(tb->common.status & DB_DELETE)) { erts_aint_t diff; - #ifdef ERTS_SMP - erts_smp_mtx_lock(&tb->common.fixlock); - #endif + erts_mtx_lock(&tb->common.fixlock); ASSERT(fixing_procs_rbt_lookup(tb->common.fixing_procs, p)); diff = -((erts_aint_t) fix->counter); - erts_smp_refc_add(&tb->common.fix_count,diff,0); + erts_refc_add(&tb->common.fix_count,diff,0); fix->counter = 0; fixing_procs_rbt_delete(&tb->common.fixing_procs, fix); - #ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); - #endif + erts_mtx_unlock(&tb->common.fixlock); if (!IS_FIXED(tb) && IS_HASH_TABLE(tb->common.status)) { work += db_unfix_table_hash(&(tb->hash)); } @@ -3655,9 +3622,9 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks) switch (state->op) { case GET_OWNED_TABLE: { DbTable* tb; - erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); + erts_proc_lock(c_p, ERTS_PROC_LOCK_STATUS); tb = (DbTable*) erts_psd_get(c_p, ERTS_PSD_ETS_OWNED_TABLES); - erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); + erts_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS); if (!tb) { /* Done with owned tables; now fixations */ @@ -3748,10 +3715,8 @@ static void fix_table_locked(Process* p, DbTable* tb) { DbFixation *fix; -#ifdef ERTS_SMP - erts_smp_mtx_lock(&tb->common.fixlock); -#endif - erts_smp_refc_inc(&tb->common.fix_count,1); + erts_mtx_lock(&tb->common.fixlock); + erts_refc_inc(&tb->common.fix_count,1); fix = tb->common.fixing_procs; if (fix == NULL) { tb->common.time.monotonic @@ -3764,9 +3729,7 @@ static void fix_table_locked(Process* p, DbTable* tb) ASSERT(fixed_tabs_find(NULL, fix)); ++(fix->counter); -#ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); -#endif + erts_mtx_unlock(&tb->common.fixlock); return; } } @@ -3779,9 +3742,7 @@ static void fix_table_locked(Process* p, DbTable* tb) fix->counter = 1; fixing_procs_rbt_insert(&tb->common.fixing_procs, fix); -#ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); -#endif + erts_mtx_unlock(&tb->common.fixlock); p->flags |= F_USING_DB; fixed_tabs_insert(p, fix); @@ -3794,20 +3755,16 @@ static void unfix_table_locked(Process* p, DbTable* tb, { DbFixation* fix; -#ifdef ERTS_SMP - erts_smp_mtx_lock(&tb->common.fixlock); -#endif + erts_mtx_lock(&tb->common.fixlock); fix = fixing_procs_rbt_lookup(tb->common.fixing_procs, p); if (fix) { - erts_smp_refc_dec(&tb->common.fix_count,0); + erts_refc_dec(&tb->common.fix_count,0); --(fix->counter); ASSERT(fix->counter >= 0); if (fix->counter == 0) { fixing_procs_rbt_delete(&tb->common.fixing_procs, fix); -#ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); -#endif + erts_mtx_unlock(&tb->common.fixlock); fixed_tabs_delete(p, fix); erts_refc_dec(&fix->tabs.btid->intern.refc, 1); @@ -3818,22 +3775,18 @@ static void unfix_table_locked(Process* p, DbTable* tb, goto unlocked; } } -#ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); -#endif + erts_mtx_unlock(&tb->common.fixlock); unlocked: if (!IS_FIXED(tb) && IS_HASH_TABLE(tb->common.status) - && erts_smp_atomic_read_nob(&tb->hash.fixdel) != (erts_aint_t)NULL) { -#ifdef ERTS_SMP + && erts_atomic_read_nob(&tb->hash.fixdel) != (erts_aint_t)NULL) { if (*kind_p == LCK_READ && tb->common.is_thread_safe) { /* Must have write lock while purging pseudo-deleted (OTP-8166) */ - erts_smp_rwmtx_runlock(&tb->common.rwlock); - erts_smp_rwmtx_rwlock(&tb->common.rwlock); + erts_rwmtx_runlock(&tb->common.rwlock); + erts_rwmtx_rwlock(&tb->common.rwlock); *kind_p = LCK_WRITE; if (tb->common.status & DB_DELETE) return; } -#endif db_unfix_table_hash(&(tb->hash)); } } @@ -3855,9 +3808,8 @@ static void free_fixations_op(DbFixation* fix, void* vctx) ASSERT(ctx->tb->common.status & DB_DELETE); diff = -((erts_aint_t) fix->counter); - erts_smp_refc_add(&ctx->tb->common.fix_count, diff, 0); + erts_refc_add(&ctx->tb->common.fix_count, diff, 0); -#ifdef ERTS_SMP if (fix->procs.p != ctx->p) { /* Fixated by other process */ fix->counter = 0; @@ -3873,7 +3825,6 @@ static void free_fixations_op(DbFixation* fix, void* vctx) */ } else -#endif { fixed_tabs_delete(fix->procs.p, fix); @@ -3886,7 +3837,6 @@ static void free_fixations_op(DbFixation* fix, void* vctx) ctx->cnt++; } -#ifdef ERTS_SMP int erts_db_execute_free_fixation(Process* p, DbFixation* fix) { ASSERT(fix->counter == 0); @@ -3898,13 +3848,12 @@ int erts_db_execute_free_fixation(Process* p, DbFixation* fix) ERTS_ETS_MISC_MEM_ADD(-sizeof(DbFixation)); return 1; } -#endif static SWord free_fixations_locked(Process* p, DbTable *tb) { struct free_fixations_ctx ctx; - ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&tb->common.rwlock)); + ERTS_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(&tb->common.rwlock)); ctx.p = p; ctx.tb = tb; @@ -4047,7 +3996,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) int use_monotonic; if (What == am_size) { - ret = make_small(erts_smp_atomic_read_nob(&tb->common.nitems)); + ret = make_small(erts_atomic_read_nob(&tb->common.nitems)); } else if (What == am_type) { if (tb->common.status & DB_SET) { ret = am_set; @@ -4060,7 +4009,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) ret = am_bag; } } else if (What == am_memory) { - Uint words = (Uint) ((erts_smp_atomic_read_nob(&tb->common.memory_size) + Uint words = (Uint) ((erts_atomic_read_nob(&tb->common.memory_size) + sizeof(Uint) - 1) / sizeof(Uint)); @@ -4090,7 +4039,10 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) ret = is_table_named(tb) ? am_true : am_false; } else if (What == am_compressed) { ret = tb->common.compress ? am_true : am_false; + } else if (What == am_id) { + ret = make_tid(p, tb); } + /* * For debugging purposes */ @@ -4106,9 +4058,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) = ERTS_IS_ATOM_STR("safe_fixed_monotonic_time", What)) || ERTS_IS_ATOM_STR("safe_fixed", What)) { -#ifdef ERTS_SMP - erts_smp_mtx_lock(&tb->common.fixlock); -#endif + erts_mtx_lock(&tb->common.fixlock); if (IS_FIXED(tb)) { Uint need; Eterm *hp; @@ -4150,9 +4100,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) } else { ret = am_false; } -#ifdef ERTS_SMP - erts_smp_mtx_unlock(&tb->common.fixlock); -#endif + erts_mtx_unlock(&tb->common.fixlock); } else if (What == am_atom_put("stats",5)) { if (IS_HASH_TABLE(tb->common.status)) { FloatDef f; @@ -4176,7 +4124,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What) std_dev_exp = make_float(hp); PUT_DOUBLE(f, hp); hp += FLOAT_SIZE_OBJECT; - ret = TUPLE7(hp, make_small(erts_smp_atomic_read_nob(&tb->hash.nactive)), + ret = TUPLE7(hp, make_small(erts_atomic_read_nob(&tb->hash.nactive)), avg, std_dev_real, std_dev_exp, make_small(stats.min_chain_len), make_small(stats.max_chain_len), @@ -4208,9 +4156,9 @@ static void print_table(fmtfn_t to, void *to_arg, int show, DbTable* tb) tb->common.meth->db_print(to, to_arg, show, tb); - erts_print(to, to_arg, "Objects: %d\n", (int)erts_smp_atomic_read_nob(&tb->common.nitems)); + erts_print(to, to_arg, "Objects: %d\n", (int)erts_atomic_read_nob(&tb->common.nitems)); erts_print(to, to_arg, "Words: %bpu\n", - (Uint) ((erts_smp_atomic_read_nob(&tb->common.memory_size) + (Uint) ((erts_atomic_read_nob(&tb->common.memory_size) + sizeof(Uint) - 1) / sizeof(Uint))); @@ -4250,9 +4198,9 @@ void db_info(fmtfn_t to, void *to_arg, int show) /* Called by break handler * Uint erts_get_ets_misc_mem_size(void) { - ERTS_SMP_MEMORY_BARRIER; + ERTS_THR_MEMORY_BARRIER; /* Memory not allocated in ets_alloc */ - return (Uint) erts_smp_atomic_read_nob(&erts_ets_misc_mem_size); + return (Uint) erts_atomic_read_nob(&erts_ets_misc_mem_size); } /* SMP Note: May only be used when system is locked */ @@ -4261,7 +4209,7 @@ erts_db_foreach_table(void (*func)(DbTable *, void *), void *arg) { int ix; - ASSERT(erts_smp_thr_progress_is_blocking()); + ASSERT(erts_thr_progress_is_blocking()); for (ix = 0; ix < erts_no_schedulers; ix++) { ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(ix); @@ -4313,7 +4261,7 @@ erts_ets_colliding_names(Process* p, Eterm name, Uint cnt) while (index >= atom_table_size()) { char tmp[20]; erts_snprintf(tmp, sizeof(tmp), "am%x", atom_table_size()); - erts_atom_put((byte *) tmp, strlen(tmp), ERTS_ATOM_ENC_LATIN1, 1); + erts_atom_put((byte *) tmp, sys_strlen(tmp), ERTS_ATOM_ENC_LATIN1, 1); } list = CONS(hp, make_atom(index), list); hp += 2; @@ -4367,4 +4315,4 @@ void erts_lcnt_update_db_locks(int enable) { &lcnt_update_db_locks_per_sched, (void*)(UWord)enable); } -#endif /* ERTS_ENABLE_LOCK_COUNT */
\ No newline at end of file +#endif /* ERTS_ENABLE_LOCK_COUNT */ |