[#BloombergLP-bslmt-SemaphoreImpl-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::SemaphoreImpl
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:mrdocs:

== Synopsis

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

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

== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmt/SemaphoreImpl-06.adoc[`SemaphoreImpl&lt;Platform::PosixSemaphore&gt;`] 
| This class provides a full specialization of `SemaphoreImpl` for pthreads&period; The implementation provided here defines an efficient proxy for the `sem&lowbar;t` pthread type, and related operations&period;
|===



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