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

Platform&hyphen;specific implementation of a readers&hyphen;writer mutex&period;

== Synopsis

Declared in `&lt;bslmt&lowbar;rwmutex&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class THREAD&lowbar;POLICY&gt;
struct RWMutexImpl;
----

== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmt/RWMutexImpl-0e.adoc[`RWMutexImpl&lt;Platform::PosixThreads&gt;`] 
| This is a platform&hyphen;specific implementation detail that is not intended for use outside of this component&period; Use the `RWMutex` class instead&period; 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)&period;
|===



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