Comments on: Mutex with PHP and mySQL

By: m_rahman

m_rahman — Wed, 03 Jun 2009 02:22:25 +0000

otherwise it's great

thank you

By: m_rahman

m_rahman — Tue, 02 Jun 2009 22:22:25 +0000

otherwise it's great

thank you

By: Matt

Matt — Thu, 14 Feb 2008 14:34:00 +0000

This is a valid point, thank you. It would probably be best to improve the simplicity of the class by calling isFree() from inside lock() and returning (in lock) whether it was a success or failure… then you could simply:

$lock = new cLock(“identifier”);
if($lock->lock()) {
// execute
$lock->release();
}

By: Artur Muszynski

Artur Muszynski — Thu, 14 Feb 2008 11:10:14 +0000

Usage example is buggy. You have to check if lock didn’t failed. This prevents race when we call isFree() then another process call lock():
…
$lock->lock();
if($lock->locked)
{
// execute
$lock->release();
}