[#BloombergLP-bslmt-FastPostSemaphore-2constructor-02e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/FastPostSemaphore.adoc[FastPostSemaphore]::FastPostSemaphore
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:mrdocs:

Create a `FastPostSemaphore` object initially having a count of 0&period; Use the realtime system clock as the clock against which the `absTime` timeouts passed to the `timedWait` methods are interpreted (see &lcub;Supported Clock&hyphen;Types&rcub; in the component&hyphen;level documentation)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
FastPostSemaphore(std::chrono::system&lowbar;clock const&);
----


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