Pthreads/fr: Difference between revisions

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 Le moyen le plus simple et le plus utilisé pour contrôler l'accès concurrent est le [https://fr.wikipedia.org/wiki/Verrou_(informatique) verrou]; dans le contexte de pthreads,  le mécanisme de verrouillage est le mutex (pour ''mutual exclusion'').
+In pthreads, a mutex is a kind of variable that may be "locked" or "owned" by only one thread at a time. The thread must then release or unlock the mutex once the global data has been read or modified. The code that lies between the call to lock a mutex and the call to unlock it will only be executed by a single thread at a time. To create a mutex in a pthreads program, we declare a global variable of type <tt>pthread_mutex_t</tt> which must be initialized before it is used by calling <tt>[http://pubs.opengroup.org/onlinepubs/7908799/xsh/pthread_mutex_init.html pthread_mutex_init]</tt>. At the program's end we release the resources associated with the mutex by calling <tt>[http://pubs.opengroup.org/onlinepubs/7908799/xsh/pthread_mutex_init.html pthread_mutex_destroy]</tt>.
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