Block until all the elements in this queue are removed.
Synopsis
Declared in <bdlcc_singleproducersingleconsumerboundedqueue.h>
int
waitUntilEmpty() const;Description
Return 0 on success, and a non‐zero value otherwise. Specifically, return e_SUCCESS on success, e_DISABLED if isPopFrontDisabled() and e_FAILED if an underlying mechanism returns an error. A blocked thread waiting for the queue to empty will return a non‐zero value if disablePopFront is invoked.
Return Value
0 on success, and a non‐zero value otherwise
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