[#BloombergLP-bslmt-MeteredMutex-unlock]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/MeteredMutex.adoc[MeteredMutex]::unlock
:relfileprefix: ../../../
:mrdocs:

Release the lock on this mutex that was previously acquired through a successful call to `lock` or `tryLock`. Update the hold time appropriately. The behavior is undefined unless the calling thread currently owns the lock.

== Synopsis

Declared in `<bslmt_meteredmutex.h>`

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


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