Acquires the queue's lock. If another thread is already holding the lock, this call will block until the lock becomes available.
Call AsyncQueue.unlock to drop the lock again.
While holding the lock, you can only call the g_async_queue_*_unlocked() functions on queue. Otherwise, deadlock may occur.
Acquires the queue's lock. If another thread is already holding the lock, this call will block until the lock becomes available.
Call AsyncQueue.unlock to drop the lock again.
While holding the lock, you can only call the g_async_queue_*_unlocked() functions on queue. Otherwise, deadlock may occur.