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int counter; // Number of additional locks in the same thread.
} PMutex;
static void
PMutexInit(
PMutex *pmutexPtr)
{
pmutexPtr->thread = 0;
pmutexPtr->counter = 0;
pthread_mutex_init(&pmutexPtr->mutex, NULL);
#if defined(HAVE_STDATOMIC_H)
__atomic_store_n(&pmutexPtr->thread, 0, __ATOMIC_SEQ_CST);
#else
# if defined(HAVE_PTHREAD_SPIN_LOCK)
pthread_spin_lock(&pmutexPtr->lock);
# endif
pmutexPtr->thread = 0;
# if defined(HAVE_PTHREAD_SPIN_LOCK)
pthread_spin_unlock(&pmutexPtr->lock);
# endif
pmutexPtr->counter = 0;
#ifdef HAVE_STDATOMIC_H
assert(__atomic_load_n(&pmutexPtr->thread, __ATOMIC_SEQ_CST) == 0);
#else
assert(mutexPtr->thread == 0);
# if defined(HAVE_PTHREAD_SPIN_LOCK)
# endif
|