[#BloombergLP-bslmt-RecursiveMutexImpl-01-unlock]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/RecursiveMutexImpl-01.adoc[RecursiveMutexImpl<Platform::PosixThreads>]::unlock
:relfileprefix: ../../../
:mrdocs:

Release a lock on this mutex that was previously acquired through a successful call to `lock`, or `tryLock`. The behavior is undefined, unless the calling thread currently owns the lock on this mutex. Note that when this object is recursively locked by a thread, `unlock` must be called an equal number of times before the lock is actually released.

== Synopsis

Declared in `<bslmt_recursivemuteximpl_pthread.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
unlock();
----


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