[#BloombergLP-bslmt-Latch-2constructor-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/Latch.adoc[Latch]::Latch
:relfileprefix: ../../../
:mrdocs:

Create a latch that will synchronize on the specified `count` number of events, and when `count` events have been recorded will release any waiting threads. Use the monotonic 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). The behavior is undefined unless `0 <= count`.

== Synopsis

Declared in `<bslmt_latch.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Latch(
    int count,
    std::chrono::steady_clock const&);
----


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