poller: An optional lockfile is used to check if the poller is already running

1 files changed, 10 insertions, 0 deletions

diff --git a/include/poller.php b/include/poller.php
index 90a97867c..499483d00 100755
--- a/include/poller.php
+++ b/include/poller.php
@@ -25,10 +25,20 @@ function poller_run($argv, $argc){
 	require_once('include/Contact.php');
 	require_once('include/email.php');
 	require_once('include/socgraph.php');
+	require_once('include/pidfile.php');
 
 	load_config('config');
 	load_config('system');
 
+	$lockpath = get_config('system','lockpath');
+	if ($lockpath != '') {
+		$pidfile = new pidfile($lockpath, 'poller.lck');
+		if($pidfile->is_already_running()) {
+			logger("poller: Already running");
+			exit;
+		}
+	}
+
 	$a->set_baseurl(get_config('system','url'));
 
 	load_hooks();