[#BloombergLP-bdlmt-MultiQueueThreadPool-drainQueue]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlmt.adoc[bdlmt]::xref:BloombergLP/bdlmt/MultiQueueThreadPool.adoc[MultiQueueThreadPool]::drainQueue
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Wait until all jobs in the queue indicated by the specified `id` are finished. This method simply waits until that queue is empty, without disabling the queue; it may thus wait indefinitely if more jobs are being added. The queue may be enabled or disabled when this method is called. Return 0 on success, and a non‐zero value if the specified queue does not exist or is deleted while this method is waiting. Note that this method waits by repeatedly yielding.

== Synopsis

Declared in `<bdlmt_multiqueuethreadpool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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int
drainQueue(int id);
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