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`std::recursive_mutex::unlock` Member Function

Releases a lock on a std::recursive_mutex object held by the current thread.

void unlock();

Preconditions:: The calling thread must hold a lock on *this.
Effects:: Releases a lock on *this held by the current thread. If this is the last lock on *this held by the calling thread, any threads are blocked waiting to acquire a lock on *this, unblock one of them.
Postconditions:: The number of locks on *this held by the calling thread is reduced by one.
Throws:: Nothing.

Header

#include <mutex>

See Also