[#BloombergLP-bslstl-StopState-requestStop]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/StopState.adoc[StopState]::requestStop
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:mrdocs:

If this `StopState` object has already had a stop requested, return `false`&period; Otherwise, atomically mark this `StopState` object as having had a stop requested, then execute all registered callbacks in an unspecified order, and finally return `true`&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;stopstate&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
requestStop();
----


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