[#BloombergLP-bslmt-RWMutexImpl-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::RWMutexImpl
:relfileprefix: ../../
:mrdocs:

Platform‐specific implementation of a readers‐writer mutex.

== Synopsis

Declared in `<bslmt_rwmutex.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class THREAD_POLICY>
struct RWMutexImpl;
----

== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmt/RWMutexImpl-0e.adoc[`RWMutexImpl<Platform::PosixThreads>`] 
| This is a platform‐specific implementation detail that is not intended for use outside of this component. Use the `RWMutex` class instead. This structure is a wrapper around a POSIX RW lock on Sun (on AIX the POSIX RW lock has poor performance and no writer guarantees).
|===



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