From 7030578bbe9e11c18b5becaf8b06e670e3c2e3cd Mon Sep 17 00:00:00 2001 From: Nils Adermann Date: Sun, 14 Jul 2013 01:32:34 -0400 Subject: [ticket/11698] Moving all autoloadable files to phpbb/ PHPBB3-11698 --- phpBB/phpbb/lock/flock.php | 144 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 phpBB/phpbb/lock/flock.php (limited to 'phpBB/phpbb/lock/flock.php') diff --git a/phpBB/phpbb/lock/flock.php b/phpBB/phpbb/lock/flock.php new file mode 100644 index 0000000000..17de0847c0 --- /dev/null +++ b/phpBB/phpbb/lock/flock.php @@ -0,0 +1,144 @@ +path = $path; + $this->lock_fp = null; + } + + /** + * Tries to acquire the lock. + * + * If the lock is already held by another process, this call will block + * until the other process releases the lock. If a lock is acquired and + * is not released before script finishes but the process continues to + * live (apache/fastcgi) then subsequent processes trying to acquire + * the same lock will be blocked forever. + * + * If the lock is already held by the same process via another instance + * of this class, this call will block forever. + * + * If flock function is disabled in php or fails to work, lock + * acquisition will fail and false will be returned. + * + * @return bool true if lock was acquired + * false otherwise + */ + public function acquire() + { + if ($this->lock_fp) + { + return false; + } + + // For systems that can't have two processes opening + // one file for writing simultaneously + if (file_exists($this->path . '.lock')) + { + $mode = 'rb'; + } + else + { + $mode = 'wb'; + } + + $this->lock_fp = @fopen($this->path . '.lock', $mode); + + if ($mode == 'wb') + { + if (!$this->lock_fp) + { + // Two processes may attempt to create lock file at the same time. + // Have the losing process try opening the lock file again for reading + // on the assumption that the winning process created it + $mode = 'rb'; + $this->lock_fp = @fopen($this->path . '.lock', $mode); + } + else + { + // Only need to set mode when the lock file is written + @chmod($this->path . '.lock', 0666); + } + } + + if ($this->lock_fp) + { + @flock($this->lock_fp, LOCK_EX); + } + + return (bool) $this->lock_fp; + } + + /** + * Does this process own the lock? + * + * @return bool true if lock is owned + * false otherwise + */ + public function owns_lock() + { + return (bool) $this->lock_fp; + } + + /** + * Releases the lock. + * + * The lock must have been previously obtained, that is, acquire() call + * was issued and returned true. + * + * Note: Attempting to release a lock that is already released, + * that is, calling release() multiple times, is harmless. + * + * @return null + */ + public function release() + { + if ($this->lock_fp) + { + @flock($this->lock_fp, LOCK_UN); + fclose($this->lock_fp); + $this->lock_fp = null; + } + } +} -- cgit v1.2.1 From b95fdacdd378877d277e261465da73deb06e50da Mon Sep 17 00:00:00 2001 From: Nils Adermann Date: Tue, 10 Sep 2013 14:01:09 +0200 Subject: [ticket/11700] Move all recent code to namespaces PHPBB3-11700 --- phpBB/phpbb/lock/flock.php | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'phpBB/phpbb/lock/flock.php') diff --git a/phpBB/phpbb/lock/flock.php b/phpBB/phpbb/lock/flock.php index 17de0847c0..2a36a853ee 100644 --- a/phpBB/phpbb/lock/flock.php +++ b/phpBB/phpbb/lock/flock.php @@ -7,6 +7,8 @@ * */ +namespace phpbb\lock; + /** * @ignore */ @@ -19,7 +21,7 @@ if (!defined('IN_PHPBB')) * File locking class * @package phpBB3 */ -class phpbb_lock_flock +class flock { /** * Path to the file to which access is controlled -- cgit v1.2.1 From 7aa8f6461f1e85cf91931f56b95384e54fec07c2 Mon Sep 17 00:00:00 2001 From: Andreas Fischer Date: Wed, 30 Oct 2013 13:05:28 +0100 Subject: [task/code-sniffer] Remove the IN_PHPBB check side-effect from class files. PHPBB3-11980 --- phpBB/phpbb/lock/flock.php | 8 -------- 1 file changed, 8 deletions(-) (limited to 'phpBB/phpbb/lock/flock.php') diff --git a/phpBB/phpbb/lock/flock.php b/phpBB/phpbb/lock/flock.php index 2a36a853ee..94a5895440 100644 --- a/phpBB/phpbb/lock/flock.php +++ b/phpBB/phpbb/lock/flock.php @@ -9,14 +9,6 @@ namespace phpbb\lock; -/** -* @ignore -*/ -if (!defined('IN_PHPBB')) -{ - exit; -} - /** * File locking class * @package phpBB3 -- cgit v1.2.1 From a759704b39fc1c1353f865a633759b1369589b67 Mon Sep 17 00:00:00 2001 From: Yuriy Rusko Date: Tue, 27 May 2014 20:18:06 +0200 Subject: [ticket/12594] Remove @package tags and update file headers PHPBB3-12594 --- phpBB/phpbb/lock/flock.php | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'phpBB/phpbb/lock/flock.php') diff --git a/phpBB/phpbb/lock/flock.php b/phpBB/phpbb/lock/flock.php index 94a5895440..df88e1490a 100644 --- a/phpBB/phpbb/lock/flock.php +++ b/phpBB/phpbb/lock/flock.php @@ -1,9 +1,13 @@ +* @license GNU General Public License, version 2 (GPL-2.0) +* +* For full copyright and license information, please see +* the docs/CREDITS.txt file. * */ @@ -11,7 +15,6 @@ namespace phpbb\lock; /** * File locking class -* @package phpBB3 */ class flock { -- cgit v1.2.1