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php-developer-list | 2001041

Re: [PHP-DEV] Shared memory in extensions From: Alexander Feldman (alex <email protected>)
Date: 04/02/01

Hi Thomas,

I tried to create a shared segment of size 5 megabytes in the
PHP_MINIT_FUNCTION and I had no problems.

The situation you described seems as you have called shmctl with IPC_RMID
but not everyone had detached from the segment. Then you tried to use
shmget and it failed - remove manually the shared memory segment and try
again. 

--
Alexander Feldman
Zend Technologies Ltd.
phone: +972 3 6139665 ext. 113, fax: +972 3 6139671
http://www.zend.com/

On Mon, 2 Apr 2001, Thomas Wentzel wrote:

> Hehe - sorry :)
> Errno is set to 43 (Identifier removed (?))
> 
> 
> The URL is:
> http://www.humanfactor.com/cgi-bin/cgi-delegate/apache-ML/nh/1999/Jan/0467.html
> - enjoy ;)
> 
> Thomas
> 
> Gavin Sherry wrote:
> > 
> > Thomas,
> > 
> > When shmget() fails, it sets errno. It would be useful if you could
> > provide this information (see shmget(2)).
> > 
> > Also, do you have a URL got SHM across HTTP patch? This sounds like fun =)
> > 
> > Gavin
> > 
> > On Mon, 2 Apr 2001, Thomas Wentzel wrote:
> > 
> > > shmid=shmget((key_t)5346,sizeof(dbinfo),0666|IPC_CREAT);
> > > which returns -1
> > >
> > > I just found something about a patch to apache, that should enable
> > > som shared memory pools across http session! Is this something I
> > > should use? It was a rather old patch (for apache 1.3.4/5)...
> > >
> > > Thanx
> > >   Thomas
> > >
> > > Alexander Feldman wrote:
> > > >
> > > > On Mon, 2 Apr 2001, Thomas Wentzel wrote:
> > > >
> > > > > Linux!
> > > > >
> > > > > RedHat 6.2, Apache 1.3.14, PHP 4.0.4pl1
> > > > >
> > > > > I forgot to mention that because shmget fails and that it does so in
> > > > > PHP_MINIT_FUNCTION, apache wil not start!
> > > >
> > > > With what parameters are you calling shmget? What is the errno after this
> > > > call?
> > > >
> > >
> > >
> > 
> > --
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