Ejemplos de WriteRequest::MinimalWriteCount en C++ (Cpp)

Ejemplo n.º 1

Archivo: fifo.cpp Proyecto: mylegacy/haiku

void
Inode::NotifyBytesRead(size_t bytes)
{
	// notify writer, if something can be written now
	size_t writable = fBuffer.Writable();
	if (bytes > 0) {
		// notify select()ors only, if nothing was writable before
		if (writable == bytes) {
			if (fWriteSelectSyncPool)
				notify_select_event_pool(fWriteSelectSyncPool, B_SELECT_WRITE);
		}

		// If any of the waiting writers has a minimal write count that has
		// now become satisfied, we notify all of them (condition variables
		// don't support doing that selectively).
		WriteRequest* request;
		WriteRequestList::Iterator iterator = fWriteRequests.GetIterator();
		while ((request = iterator.Next()) != NULL) {
			size_t minWriteCount = request->MinimalWriteCount();
			if (minWriteCount > 0 && minWriteCount <= writable
					&& minWriteCount > writable - bytes) {
				fWriteCondition.NotifyAll();
				break;
			}
		}
	}
}