#39138 [NEW]: LOCK_NB for flock() does not work

From: Date: Thu, 12 Oct 2006 14:19:19 +0000
Subject: #39138 [NEW]: LOCK_NB for flock() does not work
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-103476@lists.php.net to get a copy of this message 
From:             php at koterov dot ru
Operating system: Windows, Linux
PHP version:      5.1.6
PHP Bug Type:     Filesystem function related
Bug description:  LOCK_NB for flock() does not work

Description:
------------
<?php
@session_write_close(); // be on the safe side
$f = fopen('/tmp/f.lck', 'a+');
var_dump(flock($f, LOCK_EX | LOCK_NB, $w));
var_dump($w);
sleep(5);
?>

When I run this script concurrently, all results are same: "bool(true)
int(0)". Seems LOCK_NB simply ignored.

P.S.
There is a lot of same bugs (e.g., http://bugs.php.net/bug.php?id=31363
etc.), but they are closed or outdated.


-- 
Edit bug report at http://bugs.php.net/?id=39138&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39138&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39138&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39138&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=39138&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=39138&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=39138&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=39138&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=39138&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=39138&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=39138&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=39138&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=39138&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=39138&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=39138&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=39138&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=39138&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=39138&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=39138&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=39138&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=39138&r=mysqlcfg

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