Re: Semaphores without sysvmsg?
| From: | Richard Lynch | Date: | Mon, 18 Feb 2008 17:43:26 +0000 |
| Subject: | Re: Semaphores without sysvmsg? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-269507@lists.php.net to get a copy of this message | ||
On Fri, February 15, 2008 6:42 pm, Michael McGlothlin wrote:
> Does anyone have a good method of supporting semaphores when PHP's
> System V IPC functions can't be enabled? I'm trying to implement
> locking
> for using shmop (actually modifying someone elses code) and it
> requires
> sysvmsg but my shared host doesn't have this enabled.
mkdir is atomic, so you should be able to use that to create a
semaphore/lock
Just in case something gets wedged, you might check the
http://php.net/filemtime of the dir, and ignore anything
super stale.
--
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some indie artist.
http://cdbaby.com/from/lynch
Yeah, I get a buck. So?