[#BloombergLP-bslmt-TimedSemaphore-2constructor-0a1]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/TimedSemaphore.adoc[TimedSemaphore]::TimedSemaphore
:relfileprefix: ../../../
:mrdocs:

Create a timed semaphore initially having a count of 0.

== Synopsis

Declared in `<bslmt_timedsemaphore.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
TimedSemaphore(std::chrono::system_clock const& systemClock);
----

== Description

Use the realtime system clock as the clock against which the `absTime` timeouts passed to the `timedWait` methods are interpreted (see {Supported Clock‐Types} in the component‐level documentation). This method does not return normally unless there are sufficient system resources to construct the object.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *systemClock*
| tag selecting the system realtime clock
|===


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