Re: thread safety for binding issues

From:	Shane Caraveo	Date:	Fri, 29 Mar 2002 17:48:31 +0000
Subject:	Re: thread safety for binding issues
References:	1 2 3	Groups:	php.dev
Request:	Send a blank email to php-dev+get-81937@lists.php.net to get a copy of this message

Markus Fischer wrote:

On Fri, Mar 29, 2002 at 09:14:46AM -0800, Shane Caraveo wrote :
Markus Fischer wrote:
Hi, how much thread-safe is PHP on linux when compiled with --enable-experimental-zts ? When I a set up a callback handler for a 3rd library which uses threads and in this (C) callback I call call_user_function() (to provide custom callbacks) -> bang , I get a segfault. Should it work and I'm doing something stupid or is this some limitation? Hints? - Markus
PHP is thread safe, not multi-threaded. ie. scripts cannot be multi-threaded. You will have to somehow proxy the data back to the original calling thread for your library to work.
    Ah, understood. So, the short answer would be it was by own
    stupidity ;-)
    About proxying the data .. you don't happen to have some more
    description or resource how to accomplish this before I try
    to reinvent the wheel ? thanks.
    - Markus

You'll probably be able to get away with using condition variables, but it's too much to describe, and I haven't done much pthreads stuff. You could get the o'reilly pthreads book for reference, or dig around for exampls on the net. Shane