[#BloombergLP-bslmt-Latch-2constructor-00]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/Latch.adoc[Latch]::Latch
:relfileprefix: ../../../
:mrdocs:

Constructors

== Synopses

Declared in `<bslmt_latch.h>`

Create a latch that synchronizes on the specified `count` events.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
xref:BloombergLP/bslmt/Latch/2constructor-08.adoc[Latch](
    int count,
    xref:BloombergLP/bsls/SystemClockType/Enum.adoc[bsls::SystemClockType::Enum] clockType = bsls::SystemClockType::e_REALTIME);
----

[.small]#xref:BloombergLP/bslmt/Latch/2constructor-08.adoc[_» more..._]#

Create a latch for `count` events using the monotonic clock.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslmt/Latch/2constructor-01.adoc[Latch](
    int count,
    std::chrono::steady_clock const& steadyClock);
----

[.small]#xref:BloombergLP/bslmt/Latch/2constructor-01.adoc[_» more..._]#

Create a latch for `count` events using the realtime clock.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslmt/Latch/2constructor-06.adoc[Latch](
    int count,
    std::chrono::system_clock const& systemClock);
----

[.small]#xref:BloombergLP/bslmt/Latch/2constructor-06.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *count*
| number of events required to release the latch
| *clockType*
| clock used to interpret `timedWait` timeouts
| *steadyClock*
| tag selecting the system monotonic clock
| *systemClock*
| tag selecting the system realtime clock
|===


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