Event socket bug fix and more docs (#6823)

* Add documentation to methods. Use is_resource for added type detection

* Allow connect to specify timeout in microseconds with default 30,000

* Update calling mechanism for event sockets

* Update project for new singleton event sockets

* remove unused variable

* catch errors on closing the socket

app/conference_centers/resources/classes/call_center_notify.php

@@ -37,8 +37,8 @@
 		//feature_event method
 		public function send_call_center_notify() {
 
-				$fp = event_socket_create();
-				if ($fp) {
+				$esl = event_socket::create();
+				if ($esl->is_connected()) {
 					//send the event
 						$event = "sendevent PRESENCE_IN\n";
 						$event .= "proto: agent\n";
@@ -50,9 +50,8 @@
 						$event .= "login: agent+".$this->agent_name."@".$this->domain_name."\n";
 						$event .= "unique-id: ".$this->agent_uuid."\n";
 						$event .= "answer-state: ".$this->answer_state."\n";
-						event_socket_request($fp, $event);
+						event_socket::command($event);
 						//echo $event."<br />";
-					fclose($fp);
 				}
 		} //function