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Diffstat (limited to 'erts/emulator/beam/register.c')
-rw-r--r--erts/emulator/beam/register.c106
1 files changed, 36 insertions, 70 deletions
diff --git a/erts/emulator/beam/register.c b/erts/emulator/beam/register.c
index bf3267cff1..92a0854ad3 100644
--- a/erts/emulator/beam/register.c
+++ b/erts/emulator/beam/register.c
@@ -38,16 +38,15 @@ static Hash process_reg;
#define REG_HASH(term) ((HashValue) atom_val(term))
-static erts_smp_rwmtx_t regtab_rwmtx;
+static erts_rwmtx_t regtab_rwmtx;
-#define reg_try_read_lock() erts_smp_rwmtx_tryrlock(&regtab_rwmtx)
-#define reg_try_write_lock() erts_smp_rwmtx_tryrwlock(&regtab_rwmtx)
-#define reg_read_lock() erts_smp_rwmtx_rlock(&regtab_rwmtx)
-#define reg_write_lock() erts_smp_rwmtx_rwlock(&regtab_rwmtx)
-#define reg_read_unlock() erts_smp_rwmtx_runlock(&regtab_rwmtx)
-#define reg_write_unlock() erts_smp_rwmtx_rwunlock(&regtab_rwmtx)
+#define reg_try_read_lock() erts_rwmtx_tryrlock(&regtab_rwmtx)
+#define reg_try_write_lock() erts_rwmtx_tryrwlock(&regtab_rwmtx)
+#define reg_read_lock() erts_rwmtx_rlock(&regtab_rwmtx)
+#define reg_write_lock() erts_rwmtx_rwlock(&regtab_rwmtx)
+#define reg_read_unlock() erts_rwmtx_runlock(&regtab_rwmtx)
+#define reg_write_unlock() erts_rwmtx_rwunlock(&regtab_rwmtx)
-#ifdef ERTS_SMP
static ERTS_INLINE void
reg_safe_read_lock(Process *c_p, ErtsProcLocks *c_p_locks)
{
@@ -64,7 +63,7 @@ reg_safe_read_lock(Process *c_p, ErtsProcLocks *c_p_locks)
}
/* Release process locks in order to avoid deadlock */
- erts_smp_proc_unlock(c_p, *c_p_locks);
+ erts_proc_unlock(c_p, *c_p_locks);
*c_p_locks = 0;
}
@@ -87,14 +86,13 @@ reg_safe_write_lock(Process *c_p, ErtsProcLocks *c_p_locks)
}
/* Release process locks in order to avoid deadlock */
- erts_smp_proc_unlock(c_p, *c_p_locks);
+ erts_proc_unlock(c_p, *c_p_locks);
*c_p_locks = 0;
}
reg_write_lock();
}
-#endif
static ERTS_INLINE int
is_proc_alive(Process *p)
@@ -141,11 +139,11 @@ static void reg_free(RegProc *obj)
void init_register_table(void)
{
HashFunctions f;
- 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;
- erts_smp_rwmtx_init_opt(&regtab_rwmtx, &rwmtx_opt, "reg_tab", NIL,
+ erts_rwmtx_init_opt(&regtab_rwmtx, &rwmtx_opt, "reg_tab", NIL,
ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
f.hash = (H_FUN) reg_hash;
@@ -175,7 +173,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
Process *proc = NULL;
Port *port = NULL;
RegProc r, *rp;
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
+ ERTS_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
if (is_not_atom(name) || name == am_undefined)
return res;
@@ -185,7 +183,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
else {
if (is_not_internal_pid(id) && is_not_internal_port(id))
return res;
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
+ erts_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
if (is_internal_port(id)) {
port = erts_id2port(id);
if (!port)
@@ -193,15 +191,13 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
}
}
-#ifdef ERTS_SMP
{
ErtsProcLocks proc_locks = proc ? ERTS_PROC_LOCK_MAIN : 0;
reg_safe_write_lock(proc, &proc_locks);
if (proc && !proc_locks)
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+ erts_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
}
-#endif
if (is_internal_pid(id)) {
if (!proc)
@@ -215,7 +211,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
}
else {
ASSERT(!INVALID_PORT(port, id));
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
+ ERTS_LC_ASSERT(erts_lc_is_port_locked(port));
r.pt = port;
if (r.pt->common.u.alive.reg)
goto done;
@@ -250,8 +246,8 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
erts_port_release(port);
if (c_p != proc) {
if (proc)
- erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_MAIN);
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+ erts_proc_unlock(proc, ERTS_PROC_LOCK_MAIN);
+ erts_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
}
return res;
}
@@ -272,17 +268,15 @@ erts_whereis_name_to_id(Process *c_p, Eterm name)
HashValue hval;
int ix;
HashBucket* b;
-#ifdef ERTS_SMP
ErtsProcLocks c_p_locks = 0;
if (c_p) {
c_p_locks = ERTS_PROC_LOCK_MAIN;
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
+ ERTS_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
}
reg_safe_read_lock(c_p, &c_p_locks);
if (c_p && !c_p_locks)
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
-#endif
+ erts_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
hval = REG_HASH(name);
ix = hval % process_reg.size;
@@ -331,7 +325,6 @@ erts_whereis_name(Process *c_p,
HashValue hval;
int ix;
HashBucket* b;
-#ifdef ERTS_SMP
ErtsProcLocks current_c_p_locks;
Port *pending_port = NULL;
@@ -348,7 +341,6 @@ erts_whereis_name(Process *c_p,
* - read reg lock
* - current_c_p_locks (either c_p_locks or 0) on c_p
*/
-#endif
hval = REG_HASH(name);
ix = hval % process_reg.size;
@@ -370,7 +362,6 @@ erts_whereis_name(Process *c_p,
if (!rp)
*proc = NULL;
else {
-#ifdef ERTS_SMP
if (!rp->p)
*proc = NULL;
else {
@@ -387,17 +378,10 @@ erts_whereis_name(Process *c_p,
*proc = rp->p;
else {
if (need_locks)
- erts_smp_proc_unlock(rp->p, need_locks);
+ erts_proc_unlock(rp->p, need_locks);
*proc = NULL;
}
}
-#else
- if (rp->p
- && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) || is_proc_alive(rp->p)))
- *proc = rp->p;
- else
- *proc = NULL;
-#endif
if (*proc && (flags & ERTS_P2P_FLG_INC_REFC))
erts_proc_inc_refc(*proc);
}
@@ -407,7 +391,6 @@ erts_whereis_name(Process *c_p,
if (!rp || !rp->pt)
*port = NULL;
else {
-#ifdef ERTS_SMP
if (lock_port) {
if (pending_port == rp->pt)
pending_port = NULL;
@@ -419,11 +402,11 @@ erts_whereis_name(Process *c_p,
pending_port = NULL;
}
- if (erts_smp_port_trylock(rp->pt) == EBUSY) {
+ if (erts_port_trylock(rp->pt) == EBUSY) {
Eterm id = rp->pt->common.id; /* id read only... */
/* Unlock all locks, acquire port lock, and restart... */
if (current_c_p_locks) {
- erts_smp_proc_unlock(c_p, current_c_p_locks);
+ erts_proc_unlock(c_p, current_c_p_locks);
current_c_p_locks = 0;
}
reg_read_unlock();
@@ -431,19 +414,16 @@ erts_whereis_name(Process *c_p,
goto restart;
}
}
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(rp->pt));
+ ERTS_LC_ASSERT(erts_lc_is_port_locked(rp->pt));
}
-#endif
*port = rp->pt;
}
}
-#ifdef ERTS_SMP
if (c_p && !current_c_p_locks)
- erts_smp_proc_lock(c_p, c_p_locks);
+ erts_proc_lock(c_p, c_p_locks);
if (pending_port)
erts_port_release(pending_port);
-#endif
reg_read_unlock();
}
@@ -476,7 +456,6 @@ int erts_unregister_name(Process *c_p,
RegProc r, *rp;
Port *port = c_prt;
ErtsProcLocks current_c_p_locks = 0;
-#ifdef ERTS_SMP
/*
* SMP note: If 'c_prt != NULL' and 'c_prt->reg->name == name',
@@ -492,18 +471,15 @@ int erts_unregister_name(Process *c_p,
restart:
reg_safe_write_lock(c_p, &current_c_p_locks);
-#endif
r.name = name;
if (is_non_value(name)) {
/* Unregister current process name */
ASSERT(c_p);
-#ifdef ERTS_SMP
if (current_c_p_locks != c_p_locks) {
- erts_smp_proc_lock(c_p, c_p_locks);
+ erts_proc_lock(c_p, c_p_locks);
current_c_p_locks = c_p_locks;
}
-#endif
if (c_p->common.u.alive.reg) {
r.name = c_p->common.u.alive.reg->name;
} else {
@@ -516,36 +492,34 @@ int erts_unregister_name(Process *c_p,
if ((rp = (RegProc*) hash_get(&process_reg, (void*) &r)) != NULL) {
if (rp->pt) {
if (port != rp->pt) {
-#ifdef ERTS_SMP
if (port) {
ASSERT(port != c_prt);
erts_port_release(port);
port = NULL;
}
- if (erts_smp_port_trylock(rp->pt) == EBUSY) {
+ if (erts_port_trylock(rp->pt) == EBUSY) {
Eterm id = rp->pt->common.id; /* id read only... */
/* Unlock all locks, acquire port lock, and restart... */
if (current_c_p_locks) {
- erts_smp_proc_unlock(c_p, current_c_p_locks);
+ erts_proc_unlock(c_p, current_c_p_locks);
current_c_p_locks = 0;
}
reg_write_unlock();
port = erts_id2port(id);
goto restart;
}
-#endif
port = rp->pt;
}
ASSERT(rp->pt == port);
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
+ ERTS_LC_ASSERT(erts_lc_is_port_locked(port));
rp->pt->common.u.alive.reg = NULL;
if (IS_TRACED_FL(port, F_TRACE_PORTS)) {
if (current_c_p_locks) {
- erts_smp_proc_unlock(c_p, current_c_p_locks);
+ erts_proc_unlock(c_p, current_c_p_locks);
current_c_p_locks = 0;
}
trace_port(port, am_unregister, r.name);
@@ -553,7 +527,6 @@ int erts_unregister_name(Process *c_p,
} else if (rp->p) {
-#ifdef ERTS_SMP
erts_proc_safelock(c_p,
current_c_p_locks,
c_p_locks,
@@ -561,17 +534,14 @@ int erts_unregister_name(Process *c_p,
(c_p == rp->p) ? current_c_p_locks : 0,
ERTS_PROC_LOCK_MAIN);
current_c_p_locks = c_p_locks;
-#endif
rp->p->common.u.alive.reg = NULL;
if (IS_TRACED_FL(rp->p, F_TRACE_PROCS)) {
trace_proc(rp->p, (c_p == rp->p) ? c_p_locks : ERTS_PROC_LOCK_MAIN,
rp->p, am_unregister, r.name);
}
-#ifdef ERTS_SMP
if (rp->p != c_p) {
- erts_smp_proc_unlock(rp->p, ERTS_PROC_LOCK_MAIN);
+ erts_proc_unlock(rp->p, ERTS_PROC_LOCK_MAIN);
}
-#endif
}
hash_erase(&process_reg, (void*) &r);
res = 1;
@@ -585,14 +555,12 @@ int erts_unregister_name(Process *c_p,
erts_port_release(port);
}
if (c_prt) {
- erts_smp_port_lock(c_prt);
+ erts_port_lock(c_prt);
}
}
-#ifdef ERTS_SMP
if (c_p && !current_c_p_locks) {
- erts_smp_proc_lock(c_p, c_p_locks);
+ erts_proc_lock(c_p, c_p_locks);
}
-#endif
return res;
}
@@ -633,14 +601,12 @@ BIF_RETTYPE registered_0(BIF_ALIST_0)
Uint need;
Eterm* hp;
HashBucket **bucket;
-#ifdef ERTS_SMP
ErtsProcLocks proc_locks = ERTS_PROC_LOCK_MAIN;
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(BIF_P);
+ ERTS_CHK_HAVE_ONLY_MAIN_PROC_LOCK(BIF_P);
reg_safe_read_lock(BIF_P, &proc_locks);
if (!proc_locks)
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
-#endif
+ erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
bucket = process_reg.bucket;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 01:37:51 +0000