The nng_mtx_lock() acquires exclusive ownership of the mutex mtx.
If the lock is already owned, this function will wait until the current
owner releases it with nng_mtx_unlock().
If multiple threads are waiting for the lock, the order of acquisition is not specified.
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Note
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A mutex can only be unlocked by the thread that locked it. |
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Important
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Mutex locks are not recursive; attempts to reacquire the same mutex may result in deadlock or aborting the current program. It is a programming error for the owner of a mutex to attempt to reacquire it. |