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Avoiding Deadlock 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3950 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2007-01-12 00:26:36 +00:00
parent 4c9da6fa4d
commit 926282b5a8
1 changed files with 24 additions and 24 deletions
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48
src/mod/applications/mod_conference/mod_conference.c
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@ -190,7 +190,7 @@ typedef struct conference_obj {
uint32_t interval;
switch_mutex_t *mutex;
conference_member_t *members;
switch_thread_rwlock_t *member_rwlock;
switch_mutex_t *member_mutex;
conference_file_node_t *fnode;
switch_memory_pool_t *pool;
switch_thread_rwlock_t *rwlock;
@ -373,7 +373,7 @@ static conference_member_t *conference_member_get(conference_obj_t *conference,
assert(conference != NULL);
assert(id != 0);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
for(member = conference->members; member; member = member->next) {
if (switch_test_flag(member, MFLAG_NOCHANNEL)) {
@ -389,7 +389,7 @@ static conference_member_t *conference_member_get(conference_obj_t *conference,
member = NULL;
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
return member;
}
@ -401,14 +401,14 @@ static switch_status_t conference_record_stop(conference_obj_t *conference, char
int count = 0;
assert (conference != NULL);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
for(member = conference->members; member; member = member->next) {
if (switch_test_flag(member, MFLAG_NOCHANNEL) && (!path || !strcmp(path, member->rec_path))) {
switch_clear_flag_locked(member, MFLAG_RUNNING);
count++;
}
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
return count;
}
@ -470,13 +470,13 @@ static switch_status_t conference_add_member(conference_obj_t *conference, confe
switch_mutex_lock(member->audio_out_mutex);
switch_mutex_lock(member->flag_mutex);
switch_thread_rwlock_wrlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
member->conference = conference;
member->next = conference->members;
member->energy_level = conference->energy_level;
conference->members = member;
switch_set_flag(member, MFLAG_INTREE);
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
if (!switch_test_flag(member, MFLAG_NOCHANNEL)) {
conference->count++;
@ -534,7 +534,7 @@ static switch_status_t conference_del_member(conference_obj_t *conference, confe
assert(member != NULL);
switch_mutex_lock(conference->mutex);
switch_thread_rwlock_wrlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
switch_mutex_lock(member->audio_in_mutex);
switch_mutex_lock(member->audio_out_mutex);
switch_mutex_lock(member->flag_mutex);
@ -609,7 +609,7 @@ static switch_status_t conference_del_member(conference_obj_t *conference, confe
switch_event_fire(&event);
}
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
switch_mutex_unlock(member->flag_mutex);
switch_mutex_unlock(member->audio_out_mutex);
switch_mutex_unlock(member->audio_in_mutex);
@ -854,7 +854,7 @@ static void *SWITCH_THREAD_FUNC conference_thread_run(switch_thread_t *thread, v
conference->fnode = NULL;
}
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
for(imember = conference->members; imember; imember = imember->next) {
switch_channel_t *channel;
@ -873,7 +873,7 @@ static void *SWITCH_THREAD_FUNC conference_thread_run(switch_thread_t *thread, v
switch_clear_flag_locked(imember, MFLAG_RUNNING);
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
switch_mutex_unlock(conference->mutex);
@ -1821,9 +1821,9 @@ static switch_status_t conference_play_file(conference_obj_t *conference, char *
assert(conference != NULL);
switch_mutex_lock(conference->mutex);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
count = conference->count;
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
switch_mutex_unlock(conference->mutex);
if (!count) {
@ -2049,12 +2049,12 @@ static switch_status_t conference_say(conference_obj_t *conference, const char *
}
switch_mutex_lock(conference->mutex);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
count = conference->count;
if (!(conference->tts_engine && conference->tts_voice)) {
count = 0;
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
switch_mutex_unlock(conference->mutex);
if (!count) {
@ -2119,11 +2119,11 @@ static void conference_member_itterator(conference_obj_t *conference, switch_str
assert(stream != NULL);
assert(pfncallback != NULL);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
for (member = conference->members; member; member = member->next) {
pfncallback(member, stream, data);
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
}
@ -2134,7 +2134,7 @@ static void conference_list_pretty(conference_obj_t *conference, switch_stream_h
assert(conference != NULL);
assert(stream != NULL);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
// stream->write_function(stream, "<pre>Current Callers:\n");
for (member = conference->members; member; member = member->next) {
@ -2156,7 +2156,7 @@ static void conference_list_pretty(conference_obj_t *conference, switch_stream_h
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
}
@ -2169,7 +2169,7 @@ static void conference_list(conference_obj_t *conference, switch_stream_handle_t
assert(delim != NULL);
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
for (member = conference->members; member; member = member->next) {
switch_channel_t *channel;
@ -2213,7 +2213,7 @@ static void conference_list(conference_obj_t *conference, switch_stream_handle_t
member->energy_level);
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
}
@ -3115,7 +3115,7 @@ switch_status_t conf_api_dispatch(conference_obj_t *conference, switch_stream_ha
conference_member_t *member = NULL;
conference_member_t *last_member = NULL;
switch_thread_rwlock_rdlock(conference->member_rwlock);
switch_mutex_lock(conference->member_mutex);
/* find last (oldest) member */
member = conference->members;
@ -3132,7 +3132,7 @@ switch_status_t conf_api_dispatch(conference_obj_t *conference, switch_stream_ha
pfn(last_member, stream, argv[argn+2]);
}
switch_thread_rwlock_unlock(conference->member_rwlock);
switch_mutex_unlock(conference->member_mutex);
} else {
conf_api_member_cmd_t pfn = (conf_api_member_cmd_t)conf_api_sub_commands[i].pfnapicmd;
conference_member_t *member = conference_member_get(conference, id);
@ -4459,7 +4459,7 @@ static conference_obj_t *conference_new(char *name, conf_xml_cfg_t cfg, switch_m
switch_mutex_init(&conference->mutex, SWITCH_MUTEX_NESTED, conference->pool);
switch_mutex_init(&conference->flag_mutex, SWITCH_MUTEX_NESTED, conference->pool);
switch_thread_rwlock_create(&conference->rwlock, conference->pool);
switch_thread_rwlock_create(&conference->member_rwlock, conference->pool);
switch_mutex_init(&conference->member_mutex, SWITCH_MUTEX_NESTED, conference->pool);
return conference;
}