Re: Process Shared Mutex

• Subject: Re: Process Shared Mutex
• From: Dario <email@hidden>
• Date: Fri, 27 Feb 2004 19:23:12 +0100

the errno = 2 brings another question, it's description is "No such file or directory".. what does it means with mutexattr ?..
In the posix specification this value should'nt be set for any possible error in this function

but, if mutexattr has been initialized without error, why this error ???
it's really a needed feature for my current development

pthreads does not use errno to return status. It uses the value directly returned from the routine. Check that value instead of errno. Darwin's pthreads implementation does not support the optional "Thread Process-Shared Synchronization" functionality, so calling pthread_mutexattr_setpshared() with the PTHREAD_PROCESS_SHARED attribute will return EINVAL.

matt.

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