From 8ff2a86cf33ed573602a4c6abf8ed8e4ee7c45f9 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Wed, 29 May 2013 07:46:14 +0400
Subject: fix file_is_locked

---
 include/functions.php | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/include/functions.php b/include/functions.php
index 01ffa751f..bad01eb96 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -961,23 +961,28 @@
 	}
 
 	function file_is_locked($filename) {
-		if (function_exists('flock') && file_exists(LOCK_DIRECTORY . "/$filename")) {
-			$fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
-			if ($fp) {
-				if (flock($fp, LOCK_EX | LOCK_NB)) {
-					flock($fp, LOCK_UN);
+		if (file_exists(LOCK_DIRECTORY . "/$filename")) {
+			if (function_exists('flock')) {
+				$fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
+				if ($fp) {
+					if (flock($fp, LOCK_EX | LOCK_NB)) {
+						flock($fp, LOCK_UN);
+						fclose($fp);
+						return false;
+					}
 					fclose($fp);
+					return true;
+				} else {
 					return false;
 				}
-				fclose($fp);
-				return true;
-			} else {
-				return false;
 			}
+			return true; // consider the file always locked and skip the test
+		} else {
+			return false;
 		}
-		return true; // consider the file always locked and skip the test
 	}
 
+
 	function make_lockfile($filename) {
 		$fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
 
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