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Date: | Thu, 23 Jul 2009 16:11:37 +0200 |
From: | Corinna Vinschen <corinna-cygwin AT cygwin DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: strange behavior with threads... |
Message-ID: | <20090723141137.GA18621@calimero.vinschen.de> |
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On Jul 23 15:50, jean-luc malet wrote: > Hi! > I've the following code : > void _Window::Start(void* arg) > { > ThreadArgs args; > args.TheWindow=this; > args.args=arg; > int err = pthread_create(&main_thread,NULL,_Start, (void*)&args); > if (err) > { > throw new Exception(err, "window thread creation error"); > } > } > void* _Window::_Start(void* arg) > { > ThreadArgs* args = (ThreadArgs*) arg; > pthread_exit((void*)args->TheWindow->start_routine(args->args)); > } > > _Window::_Start is static > > for some reason that I can't determine it happens that args in > _Window::_Start have strange value (args->TheWindow don't contain a > valid pointer, ie a pointer on a _Window object) Maybe you shouldn't let the arg to the thread point to a local stack-based variable in the other method which, as you code implies, returns after having started the thread... Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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