Method eventInit

src/common/isc_sync.cpp:585–640

}

int SharedMemoryBase::eventInit(event_t* event)
{
/**************************************
 *
 *	I S C _ e v e n t _ i n i t
 *
 **************************************
 *
 * Functional description
 *	Prepare an event object for use.
 *
 **************************************/

#if defined(WIN_NT)

	static AtomicCounter idCounter;

	event->event_id = ++idCounter;

	event->event_pid = process_id = getpid();
	event->event_count = 0;

	event->event_handle = ISC_make_signal(true, true, process_id, event->event_id);

	return (event->event_handle) ? FB_SUCCESS : FB_FAILURE;

#else // pthread-based event

	event->event_count = 0;
	event->event_pid = getpid();

	// Prepare an Inter-Process event block
	pthread_mutexattr_t mattr;
	pthread_condattr_t cattr;

	PTHREAD_ERROR(pthread_mutexattr_init(&mattr));
	PTHREAD_ERROR(pthread_condattr_init(&cattr));
#ifdef PTHREAD_PROCESS_SHARED
	if (!isSandboxed())
	{
		PTHREAD_ERROR(pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED));
		PTHREAD_ERROR(pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED));
	}
#else
#error Your system must support PTHREAD_PROCESS_SHARED to use firebird.
#endif
	PTHREAD_ERROR(pthread_mutex_init(event->event_mutex, &mattr));
	PTHREAD_ERROR(pthread_cond_init(event->event_cond, &cattr));
	PTHREAD_ERROR(pthread_mutexattr_destroy(&mattr));
	PTHREAD_ERROR(pthread_condattr_destroy(&cattr));

	return FB_SUCCESS;

#endif // OS-dependent choice

}