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[mod_event_socket] Check if listener is running before pushing more logs or events to its queue 

This fixes a possibility for MAX_MISSED to be exceeded if more logs are
attempted to be pushed to the listener's queue after running kill_listener but
before the listener thread gets CPU time and removes itself.

On a heavily loaded system with a lot of logs in the event dispatch queue
these excessive logs may prove fatal since socket_logger itself will produce
logs about the full queue, resulting in a circular situation of never-ending logs.

The same logic was applied to event_handler after finding the same behaviour
mentioned in signalwire/freeswitch#2143.
This commit is contained in:
Anton Olofsson 2024-01-29 17:05:45 +01:00 committed by GitHub
parent 8e36c59033
commit 9df3076f29
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GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 2 deletions
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4
src/mod/event_handlers/mod_event_socket/mod_event_socket.c
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@ -173,7 +173,7 @@ static switch_status_t socket_logger(const switch_log_node_t *node, switch_log_l
switch_status_t qstatus;
switch_mutex_lock(globals.listener_mutex);
for (l = listen_list.listeners; l; l = l->next) {
if (switch_test_flag(l, LFLAG_LOG) && l->level >= node->level) {
if (switch_test_flag(l, LFLAG_LOG) && l->level >= node->level && switch_test_flag(l, LFLAG_RUNNING)) {
switch_log_node_t *dnode = switch_log_node_dup(node);
qstatus = switch_queue_trypush(l->log_queue, dnode);
if (qstatus == SWITCH_STATUS_SUCCESS) {
@ -302,7 +302,7 @@ static void event_handler(switch_event_t *event)
}
}
if (l->expire_time || !switch_test_flag(l, LFLAG_EVENTS)) {
if (l->expire_time || !switch_test_flag(l, LFLAG_EVENTS) || !switch_test_flag(l, LFLAG_RUNNING)) {
last = l;
continue;
}