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Cleanup after log/event handler process exit, fix event handler stuff to work again and do some minor tweaks 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11516 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Andrew Thompson 2009-01-27 21:39:29 +00:00
parent f938fd9002
commit 09fc2d5f4d
2 changed files with 58 additions and 11 deletions
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7
src/mod/event_handlers/mod_erlang_event/handle_msg.c
View File

@ -605,20 +605,23 @@ static switch_status_t handle_msg_atom(listener_t *listener, erlang_msg *msg, e
}
else if (!strncmp(atom, "nolog", MAXATOMLEN)) {
if (switch_test_flag(listener, LFLAG_LOG)) {
void *pop;
/*purge the log queue */
while (switch_queue_trypop(listener->log_queue, &pop) == SWITCH_STATUS_SUCCESS);
switch_clear_flag_locked(listener, LFLAG_LOG);
}
ei_x_encode_atom(rbuf, "ok");
} else if (!strncmp(atom, "register_log_handler", MAXATOMLEN)) {
ei_link(listener, ei_self(listener->ec), &msg->from);
listener->log_process.type = ERLANG_PID;
listener->log_process.pid = msg->from;
memcpy(&listener->log_process.pid, &msg->from, sizeof(erlang_pid));
listener->level = SWITCH_LOG_DEBUG;
switch_set_flag(listener, LFLAG_LOG);
ei_x_encode_atom(rbuf, "ok");
} else if (!strncmp(atom, "register_event_handler", MAXATOMLEN)) {
ei_link(listener, ei_self(listener->ec), &msg->from);
listener->event_process.type = ERLANG_PID;
listener->event_process.pid = msg->from;
memcpy(&listener->event_process.pid, &msg->from, sizeof(erlang_pid));
if (!switch_test_flag(listener, LFLAG_EVENTS)) {
switch_set_flag_locked(listener, LFLAG_EVENTS);
}

62
src/mod/event_handlers/mod_erlang_event/mod_erlang_event.c
View File

@ -190,12 +190,13 @@ static void event_handler(switch_event_t *event)
/* test all of the sessions attached to this event in case
one of them should receive it as well
*/
send_event_to_attached_sessions(l,event);
if (!switch_test_flag(l, LFLAG_EVENTS)) {
continue;
}
if (switch_test_flag(l, LFLAG_STATEFUL) && l->timeout && switch_epoch_time_now(NULL) - l->last_flush > l->timeout) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Stateful Listener %u has expired\n", l->id);
remove_listener(l);
@ -210,6 +211,7 @@ static void event_handler(switch_event_t *event)
send = 1;
}
}
if (send) {
if (switch_event_dup(&clone, event) == SWITCH_STATUS_SUCCESS) {
@ -397,7 +399,7 @@ static switch_xml_t erlang_fetch(const char *sectionstr, const char *tag_name, c
/*int index = 3;*/
while (!(rep = (ei_x_buff *) switch_core_hash_find(ptr->listener->fetch_reply_hash, uuid_str))) {
if (i > 50) { /* half a second timeout */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "timed out!\n");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Timed out when waiting for XML fetch response!\n");
return NULL;
}
i++;
@ -603,10 +605,11 @@ static void check_log_queue(listener_t *listener)
static void check_event_queue(listener_t *listener)
{
void* pop;
/* send out any pending crap in the event queue */
if (switch_test_flag(listener, LFLAG_EVENTS)) {
if (switch_queue_trypop(listener->event_queue, &pop) == SWITCH_STATUS_SUCCESS) {
switch_event_t *pevent = (switch_event_t *) pop;
ei_x_buff ebuf;
@ -615,7 +618,7 @@ static void check_event_queue(listener_t *listener)
ei_encode_switch_event(&ebuf, pevent);
switch_mutex_lock(listener->sock_mutex);
ei_sendto(listener->ec, listener->sockfd, &listener->log_process, &ebuf);
ei_sendto(listener->ec, listener->sockfd, &listener->event_process, &ebuf);
switch_mutex_unlock(listener->sock_mutex);
ei_x_free(&ebuf);
@ -624,6 +627,50 @@ static void check_event_queue(listener_t *listener)
}
}
static void handle_exit(listener_t *listener, erlang_pid *pid)
{
session_elem_t *s;
remove_binding(NULL, pid); /* TODO - why don't we pass the listener as the first argument? */
if ((s = find_session_elem_by_pid(listener, pid))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Outbound session for %s exited unexpectedly!\n",
switch_core_session_get_uuid(s->session));
/* TODO - if a spawned process that was handling an outbound call fails.. what do we do with the call? */
remove_session_elem_from_listener(listener, s);
}
if (listener->log_process.type == ERLANG_PID && !ei_compare_pids(&listener->log_process.pid, pid)) {
void *pop;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Log handler process for node %s exited\n", pid->node);
/*purge the log queue */
while (switch_queue_trypop(listener->log_queue, &pop) == SWITCH_STATUS_SUCCESS);
if (switch_test_flag(listener, LFLAG_LOG)) {
switch_clear_flag_locked(listener, LFLAG_LOG);
}
}
if (listener->event_process.type == ERLANG_PID && !ei_compare_pids(&listener->event_process.pid, pid)) {
void *pop;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Event handler process for node %s exited\n", pid->node);
/*purge the event queue */
while (switch_queue_trypop(listener->event_queue, &pop) == SWITCH_STATUS_SUCCESS);
if (switch_test_flag(listener, LFLAG_EVENTS)) {
uint8_t x = 0;
switch_clear_flag_locked(listener, LFLAG_EVENTS);
for (x = 0; x <= SWITCH_EVENT_ALL; x++) {
listener->event_list[x] = 0;
}
/* wipe the hash */
switch_core_hash_destroy(&listener->event_hash);
switch_core_hash_init(&listener->event_hash, listener->pool);
}
}
}
static void listener_main_loop(listener_t *listener)
{
int status = 1;
@ -681,10 +728,7 @@ static void listener_main_loop(listener_t *listener)
break;
case ERL_EXIT :
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "erl_exit from %s <%d.%d.%d>\n", msg.from.node, msg.from.creation, msg.from.num, msg.from.serial);
remove_binding(NULL, &msg.from);
/* TODO - if a spawned process that was handling an outbound call fails.. what do we do with the call? */
remove_session_elem_from_listener(listener, find_session_elem_by_pid(listener, &msg.from));
/* TODO - check if this linked pid is any of the log/event handler processes and cleanup if it is. */
handle_exit(listener, &msg.from);
break;
default :
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "unexpected msg type %d\n", (int)(msg.msgtype));
@ -1030,7 +1074,7 @@ session_elem_t* attach_call_to_spawned_process(listener_t* listener, char *modul
while (!(pid = (erlang_pid *) switch_core_hash_find(listener->spawn_pid_hash, hash))) {
if (i > 50) { /* half a second timeout */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "timed out!\n");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Timed out when waiting for outbound pid\n");
switch_core_session_rwunlock(session);
remove_session_elem_from_listener(listener,session_element);
return NULL;