Merged revisions 44378 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r44378 | kpfleming | 2006-10-04 14:47:22 -0500 (Wed, 04 Oct 2006) | 4 lines

update thread creation code a bit
reduce standard thread stack size slightly to allow the pthreads library to allocate the stack+data and not overflow a power-of-2 allocation in the kernel and waste memory/address space
add a new stack size for 'background' threads (those that don't handle PBX calls) when LOW_MEMORY is defined

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@44379 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.6.0
Kevin P. Fleming 19 years ago
parent de7a85105a
commit 3c876af5cf

@ -1080,7 +1080,7 @@ static int conf_run(struct ast_channel *chan, struct ast_conference *conf, int c
if ((conf->recording == MEETME_RECORD_OFF) && ((confflags & CONFFLAG_RECORDCONF) || (conf->lchan))) {
pthread_attr_init(&conf->attr);
pthread_attr_setdetachstate(&conf->attr, PTHREAD_CREATE_DETACHED);
ast_pthread_create(&conf->recordthread, &conf->attr, recordthread, conf);
ast_pthread_create_background(&conf->recordthread, &conf->attr, recordthread, conf);
}
time(&user->jointime);

@ -292,7 +292,7 @@ static void launch_monitor_thread(struct ast_channel *chan, const char *filename
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
ast_pthread_create(&thread, &attr, mixmonitor_thread, mixmonitor);
ast_pthread_create_background(&thread, &attr, mixmonitor_thread, mixmonitor);
pthread_attr_destroy(&attr);
}

@ -596,7 +596,7 @@ static int statechange_queue(const char *dev, int state, void *ign)
strcpy(sc->dev, dev);
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (ast_pthread_create(&t, &attr, changethread, sc)) {
if (ast_pthread_create_background(&t, &attr, changethread, sc)) {
ast_log(LOG_WARNING, "Failed to create update thread!\n");
free(sc);
}

@ -1151,7 +1151,7 @@ static int load_module(void)
ast_cli_register_multiple(cli_alsa, sizeof(cli_alsa) / sizeof(struct ast_cli_entry));
ast_pthread_create(&sthread, NULL, sound_thread, NULL);
ast_pthread_create_background(&sthread, NULL, sound_thread, NULL);
#ifdef ALSA_MONITOR
if (alsa_monitor_start())
ast_log(LOG_ERROR, "Problem starting Monitoring\n");

@ -2590,7 +2590,7 @@ static int restart_monitor(void)
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, &attr, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, &attr, do_monitor, NULL) < 0) {
monitor_thread = AST_PTHREADT_NULL;
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");

@ -6106,7 +6106,7 @@ static int iax_park(struct ast_channel *chan1, struct ast_channel *chan2)
if ((d = ast_calloc(1, sizeof(*d)))) {
d->chan1 = chan1m;
d->chan2 = chan2m;
if (!ast_pthread_create(&th, NULL, iax_park_thread, d))
if (!ast_pthread_create_background(&th, NULL, iax_park_thread, d))
return 0;
free(d);
}
@ -8083,8 +8083,8 @@ static int start_network_thread(void)
AST_LIST_UNLOCK(&idle_list);
}
}
ast_pthread_create(&schedthreadid, NULL, sched_thread, NULL);
ast_pthread_create(&netthreadid, NULL, network_thread, NULL);
ast_pthread_create_background(&schedthreadid, NULL, sched_thread, NULL);
ast_pthread_create_background(&netthreadid, NULL, network_thread, NULL);
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "%d helper threaads started\n", threadcount);
return 0;

@ -3500,7 +3500,7 @@ static int restart_monitor(void)
pthread_kill(monitor_thread, SIGURG);
} else {
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;

@ -1540,7 +1540,7 @@ static struct chan_oss_pvt *store_config(struct ast_config *cfg, char *ctg)
ast_log(LOG_ERROR, "Unable to create pipe\n");
goto error;
}
ast_pthread_create(&o->sthread, NULL, sound_thread, o);
ast_pthread_create_background(&o->sthread, NULL, sound_thread, o);
/* link into list of devices */
if (o != &oss_default) {
o->next = oss_default.next;

@ -1157,7 +1157,7 @@ static int restart_monitor()
}
monitor = 1;
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;

@ -12275,7 +12275,7 @@ static int sip_park(struct ast_channel *chan1, struct ast_channel *chan2, struct
d->chan1 = transferee; /* Transferee */
d->chan2 = transferer; /* Transferer */
d->seqno = seqno;
if (ast_pthread_create(&th, NULL, sip_park_thread, d) < 0) {
if (ast_pthread_create_background(&th, NULL, sip_park_thread, d) < 0) {
/* Could not start thread */
free(d); /* We don't need it anymore. If thread is created, d will be free'd
by sip_park_thread() */
@ -14619,7 +14619,7 @@ static int restart_monitor(void)
pthread_kill(monitor_thread, SIGURG);
} else {
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;

@ -4331,7 +4331,7 @@ static int restart_monitor(void)
pthread_kill(monitor_thread, SIGURG);
} else {
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;
@ -4512,7 +4512,7 @@ static int reload_config(void)
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Skinny listening on %s:%d\n",
ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port));
ast_pthread_create(&accept_t,NULL, accept_thread, NULL);
ast_pthread_create_background(&accept_t,NULL, accept_thread, NULL);
}
}
ast_mutex_unlock(&netlock);

@ -7245,7 +7245,7 @@ static int restart_monitor(void)
#endif
} else {
/* Start a new monitor */
if (ast_pthread_create(&monitor_thread, &attr, do_monitor, NULL) < 0) {
if (ast_pthread_create_background(&monitor_thread, &attr, do_monitor, NULL) < 0) {
ast_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;
@ -9156,7 +9156,7 @@ static void *pri_dchannel(void *vpri)
idle = zt_request("Zap", AST_FORMAT_ULAW, idlen, &cause);
if (idle) {
pri->pvts[nextidle]->isidlecall = 1;
if (ast_pthread_create(&p, NULL, do_idle_thread, idle)) {
if (ast_pthread_create_background(&p, NULL, do_idle_thread, idle)) {
ast_log(LOG_WARNING, "Unable to start new thread for idle channel '%s'\n", idle->name);
zt_hangup(idle);
}
@ -10192,7 +10192,7 @@ static int start_pri(struct zt_pri *pri)
/* Assume primary is the one we use */
pri->pri = pri->dchans[0];
pri->resetpos = -1;
if (ast_pthread_create(&pri->master, NULL, pri_dchannel, pri)) {
if (ast_pthread_create_background(&pri->master, NULL, pri_dchannel, pri)) {
for (i = 0; i < NUM_DCHANS; i++) {
if (!pri->dchannels[i])
break;

@ -246,15 +246,30 @@ static force_inline int inaddrcmp(const struct sockaddr_in *sin1, const struct s
|| (sin1->sin_port != sin2->sin_port));
}
#define AST_STACKSIZE 256 * 1024
#define AST_STACKSIZE 240 * 1024
#if defined(LOW_MEMORY)
#define AST_BACKGROUND_STACKSIZE 48 * 1024
#else
#define AST_BACKGROUND_STACKSIZE 240 * 1024
#endif
void ast_register_thread(char *name);
void ast_unregister_thread(void *id);
#define ast_pthread_create(a,b,c,d) ast_pthread_create_stack(a,b,c,d,0, \
__FILE__, __FUNCTION__, __LINE__, #c)
int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *), void *data, size_t stacksize,
const char *file, const char *caller, int line, const char *start_fn);
int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
void *data, size_t stacksize, const char *file, const char *caller,
int line, const char *start_fn);
#define ast_pthread_create(a, b, c, d) ast_pthread_create_stack(a, b, c, d, \
0, \
__FILE__, __FUNCTION__, \
__LINE__, #c)
#define ast_pthread_create_background(a, b, c, d) ast_pthread_create_stack(a, b, c, d, \
AST_BACKGROUND_STACKSIZE, \
__FILE__, __FUNCTION__, \
__LINE__, #c)
/*!
\brief Process a string to find and replace characters

@ -300,7 +300,7 @@ void ast_register_thread(char *name)
if (!new)
return;
new->id = pthread_self();
new->name = name; /* this was a copy already */
new->name = name; /* steal the allocated memory for the thread name */
AST_LIST_LOCK(&thread_list);
AST_LIST_INSERT_HEAD(&thread_list, new, list);
AST_LIST_UNLOCK(&thread_list);
@ -312,7 +312,7 @@ void ast_unregister_thread(void *id)
AST_LIST_LOCK(&thread_list);
AST_LIST_TRAVERSE_SAFE_BEGIN(&thread_list, x, list) {
if ((void *)x->id == id) {
if ((void *) x->id == id) {
AST_LIST_REMOVE_CURRENT(&thread_list, list);
break;
}
@ -859,7 +859,7 @@ static void *listener(void *unused)
fcntl(consoles[x].p[1], F_SETFL, flags | O_NONBLOCK);
consoles[x].fd = s;
consoles[x].mute = ast_opt_mute;
if (ast_pthread_create(&consoles[x].t, &attr, netconsole, &consoles[x])) {
if (ast_pthread_create_background(&consoles[x].t, &attr, netconsole, &consoles[x])) {
ast_log(LOG_ERROR, "Unable to spawn thread to handle connection: %s\n", strerror(errno));
close(consoles[x].p[0]);
close(consoles[x].p[1]);
@ -917,7 +917,7 @@ static int ast_makesocket(void)
return -1;
}
ast_register_verbose(network_verboser);
ast_pthread_create(&lthread, NULL, listener, NULL);
ast_pthread_create_background(&lthread, NULL, listener, NULL);
if (!ast_strlen_zero(ast_config_AST_CTL_OWNER)) {
struct passwd *pw;

@ -111,7 +111,7 @@ int ast_autoservice_start(struct ast_channel *chan)
AST_LIST_INSERT_HEAD(&aslist, as, list);
res = 0;
if (asthread == AST_PTHREADT_NULL) { /* need start the thread */
if (ast_pthread_create(&asthread, NULL, autoservice_run, NULL)) {
if (ast_pthread_create_background(&asthread, NULL, autoservice_run, NULL)) {
ast_log(LOG_WARNING, "Unable to create autoservice thread :(\n");
/* There will only be a single member in the list at this point,
the one we just added. */

@ -853,7 +853,7 @@ void ast_cdr_submit_batch(int shutdown)
} else {
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (ast_pthread_create(&batch_post_thread, &attr, do_batch_backend_process, oldbatchitems)) {
if (ast_pthread_create_background(&batch_post_thread, &attr, do_batch_backend_process, oldbatchitems)) {
ast_log(LOG_WARNING, "CDR processing thread could not detach, now trying in this thread\n");
do_batch_backend_process(oldbatchitems);
} else {
@ -1101,7 +1101,7 @@ static int do_reload(void)
if it does not exist */
if (enabled && batchmode && (!was_enabled || !was_batchmode) && (cdr_thread == AST_PTHREADT_NULL)) {
ast_cond_init(&cdr_pending_cond, NULL);
if (ast_pthread_create(&cdr_thread, NULL, do_cdr, NULL) < 0) {
if (ast_pthread_create_background(&cdr_thread, NULL, do_cdr, NULL) < 0) {
ast_log(LOG_ERROR, "Unable to start CDR thread.\n");
ast_sched_del(sched, cdr_sched);
} else {

@ -374,7 +374,7 @@ static void *do_devstate_changes(void *data)
int ast_device_state_engine_init(void)
{
ast_cond_init(&change_pending, NULL);
if (ast_pthread_create(&change_thread, NULL, do_devstate_changes, NULL) < 0) {
if (ast_pthread_create_background(&change_thread, NULL, do_devstate_changes, NULL) < 0) {
ast_log(LOG_ERROR, "Unable to start device state change thread.\n");
return -1;
}

@ -390,7 +390,7 @@ static int do_reload(int loading)
/* if this reload enabled the manager, create the background thread
if it does not exist */
if (enabled && !was_enabled && (refresh_thread == AST_PTHREADT_NULL)) {
if (ast_pthread_create(&refresh_thread, NULL, do_refresh, NULL) < 0) {
if (ast_pthread_create_background(&refresh_thread, NULL, do_refresh, NULL) < 0) {
ast_log(LOG_ERROR, "Unable to start refresh thread.\n");
}
else {

@ -510,7 +510,7 @@ static void *http_root(void *data)
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (ast_pthread_create(&launched, &attr, ast_httpd_helper_thread, ser)) {
if (ast_pthread_create_background(&launched, &attr, ast_httpd_helper_thread, ser)) {
ast_log(LOG_WARNING, "Unable to launch helper thread: %s\n", strerror(errno));
fclose(ser->f);
free(ser);
@ -589,7 +589,7 @@ static void http_server_start(struct sockaddr_in *sin)
}
flags = fcntl(httpfd, F_GETFL);
fcntl(httpfd, F_SETFL, flags | O_NONBLOCK);
if (ast_pthread_create(&master, NULL, http_root, NULL)) {
if (ast_pthread_create_background(&master, NULL, http_root, NULL)) {
ast_log(LOG_NOTICE, "Unable to launch http server on %s:%d: %s\n",
ast_inet_ntoa(sin->sin_addr), ntohs(sin->sin_port),
strerror(errno));

@ -2170,7 +2170,7 @@ static void *accept_thread(void *ignore)
s->eventq = s->eventq->next;
AST_LIST_UNLOCK(&sessions);
ast_atomic_fetchadd_int(&s->eventq->usecount, 1);
if (ast_pthread_create(&s->t, &attr, session_do, s))
if (ast_pthread_create_background(&s->t, &attr, session_do, s))
destroy_session(s);
}
pthread_attr_destroy(&attr);
@ -2785,7 +2785,7 @@ int init_manager(void)
fcntl(asock, F_SETFL, flags | O_NONBLOCK);
if (option_verbose)
ast_verbose("Asterisk Management interface listening on port %d\n", portno);
ast_pthread_create(&t, NULL, accept_thread, NULL);
ast_pthread_create_background(&t, NULL, accept_thread, NULL);
}
return 0;
}

@ -525,31 +525,38 @@ struct thr_arg {
* are odd macros which start and end a block, so they _must_ be
* used in pairs (the latter with a '1' argument to call the
* handler on exit.
* On BSD we don't need this, but we keep it for compatibility with the MAC.
* On BSD we don't need this, but we keep it for compatibility.
*/
static void *dummy_start(void *data)
{
void *ret;
struct thr_arg a = *((struct thr_arg *)data); /* make a local copy */
struct thr_arg a = *((struct thr_arg *) data); /* make a local copy */
/* note that even though data->name is a pointer to allocated memory,
we are not freeing it here because ast_register_thread is going to
keep a copy of the pointer and then ast_unregister_thread will
free the memory
*/
free(data);
ast_register_thread(a.name);
pthread_cleanup_push(ast_unregister_thread, (void *)pthread_self()); /* on unregister */
pthread_cleanup_push(ast_unregister_thread, (void *) pthread_self());
ret = a.start_routine(a.data);
pthread_cleanup_pop(1);
return ret;
}
int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *), void *data, size_t stacksize,
const char *file, const char *caller, int line, const char *start_fn)
int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
void *data, size_t stacksize, const char *file, const char *caller,
int line, const char *start_fn)
{
struct thr_arg *a;
pthread_attr_t lattr;
if (!attr) {
pthread_attr_init(&lattr);
attr = &lattr;
attr = alloca(sizeof(*attr));
pthread_attr_init(attr);
}
#ifdef __linux__
/* On Linux, pthread_attr_init() defaults to PTHREAD_EXPLICIT_SCHED,
which is kind of useless. Change this here to
@ -558,27 +565,25 @@ int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*st
This does mean that callers cannot set a different priority using
PTHREAD_EXPLICIT_SCHED in the attr argument; instead they must set
the priority afterwards with pthread_setschedparam(). */
errno = pthread_attr_setinheritsched(attr, PTHREAD_INHERIT_SCHED);
if (errno)
ast_log(LOG_WARNING, "pthread_attr_setinheritsched returned non-zero: %s\n", strerror(errno));
if ((errno = pthread_attr_setinheritsched(attr, PTHREAD_INHERIT_SCHED)))
ast_log(LOG_WARNING, "pthread_attr_setinheritsched: %s\n", strerror(errno));
#endif
if (!stacksize)
stacksize = AST_STACKSIZE;
errno = pthread_attr_setstacksize(attr, stacksize);
if (errno)
ast_log(LOG_WARNING, "pthread_attr_setstacksize returned non-zero: %s\n", strerror(errno));
a = ast_malloc(sizeof(*a));
if (!a)
ast_log(LOG_WARNING, "no memory, thread %s will not be listed\n", start_fn);
else { /* remap parameters */
if ((errno = pthread_attr_setstacksize(attr, stacksize ? stacksize : AST_STACKSIZE)))
ast_log(LOG_WARNING, "pthread_attr_setstacksize: %s\n", strerror(errno));
if ((a = ast_malloc(sizeof(*a)))) {
a->start_routine = start_routine;
a->data = data;
start_routine = dummy_start;
asprintf(&a->name, "%-20s started at [%5d] %s %s()",
start_fn, line, file, caller);
start_fn, line, file, caller);
data = a;
}
return pthread_create(thread, attr, start_routine, data); /* We're in ast_pthread_create, so it's okay */
}

@ -2151,8 +2151,8 @@ static void *process_precache(void *ign)
static int start_network_thread(void)
{
ast_pthread_create(&netthreadid, NULL, network_thread, NULL);
ast_pthread_create(&precachethreadid, NULL, process_precache, NULL);
ast_pthread_create_background(&netthreadid, NULL, network_thread, NULL);
ast_pthread_create_background(&precachethreadid, NULL, process_precache, NULL);
return 0;
}

@ -495,7 +495,7 @@ static int load_module(void)
snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if ((ret = ast_pthread_create(&thread,&attr,scan_thread, NULL)) != 0) {
if ((ret = ast_pthread_create_background(&thread,&attr,scan_thread, NULL)) != 0) {
ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
return -1;
}

@ -2368,7 +2368,7 @@ static int aji_reload()
ASTOBJ_RDLOCK(iterator);
if(iterator->state == AJI_DISCONNECTED) {
if (!iterator->thread)
ast_pthread_create(&iterator->thread, NULL, aji_recv_loop, iterator);
ast_pthread_create_background(&iterator->thread, NULL, aji_recv_loop, iterator);
} else if (iterator->state == AJI_CONNECTING)
aji_get_roster(iterator);
ASTOBJ_UNLOCK(iterator);

@ -867,7 +867,7 @@ static int moh_register(struct mohclass *moh, int reload)
#else
moh->pseudofd = -1;
#endif
if (ast_pthread_create(&moh->thread, NULL, monmp3thread, moh)) {
if (ast_pthread_create_background(&moh->thread, NULL, monmp3thread, moh)) {
ast_log(LOG_WARNING, "Unable to create moh...\n");
if (moh->pseudofd > -1)
close(moh->pseudofd);

@ -682,7 +682,7 @@ static int smdi_load(int reload)
/* start the listner thread */
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Starting SMDI monitor thread for %s\n", iface->name);
if (ast_pthread_create(&iface->thread, NULL, smdi_read, iface)) {
if (ast_pthread_create_background(&iface->thread, NULL, smdi_read, iface)) {
ast_log(LOG_ERROR, "Error starting SMDI monitor thread for %s\n", iface->name);
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;

@ -96,7 +96,7 @@ static int load_module(void)
res_snmp_dont_stop = 1;
if (res_snmp_enabled)
return ast_pthread_create(&thread, NULL, agent_thread, NULL);
return ast_pthread_create_background(&thread, NULL, agent_thread, NULL);
else
return 0;
}
@ -121,7 +121,7 @@ static int reload(void)
res_snmp_dont_stop = 1;
if (res_snmp_enabled)
return ast_pthread_create(&thread, NULL, agent_thread, NULL);
return ast_pthread_create_background(&thread, NULL, agent_thread, NULL);
else
return 0;
}

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