[#BloombergLP-bslmt-QLock_EventFlag-set]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/QLock_EventFlag.adoc[QLock_EventFlag]::set
:relfileprefix: ../../../
:mrdocs:

Set this flag, and if a thread is waiting for it, signal the waiting thread. The behavior is undefined if this flag is already set.

== Synopsis

Declared in `<bslmt_qlock.h>`

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


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