[#absl-BlockingCounter-Wait]
= xref:absl.adoc[absl]::xref:absl/BlockingCounter.adoc[BlockingCounter]::Wait
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:mrdocs:

Blocks until the counter reaches zero.

== Synopsis

Declared in `<absl/synchronization/blocking_counter.h>`

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

== Description

Blocks until the counter reaches zero. This function may be called at most once. On return, `DecrementCount()` will have been called "initial_count" times and the blocking counter may be destroyed.

Memory ordering: For any threads X and Y, any action taken by X before X calls `DecrementCount()` is visible to Y after Y returns from `Wait()`.


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