[#BloombergLP-bslmt-MutexImpl-06-nativeMutex]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/MutexImpl-06.adoc[MutexImpl<Platform::PosixThreads>]::nativeMutex
:relfileprefix: ../../../
:mrdocs:

Return a reference to the modifiable OS‐level mutex underlying this object. This method is intended only to support other `bslmt` components that must operate directly on this mutex.

== Synopsis

Declared in `<bslmt_muteximpl_pthread.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/bslmt/MutexImpl-06/NativeType.adoc[MutexImpl<bslmt::Platform::PosixThreads>::NativeType]&
nativeMutex();
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