BloombergLP::bdlcc::SingleProducerQueueImpl::tryPushBack

Append the specified move‐insertable value to the back of this queue. value is left in a valid but unspecified state. Return 0 on success, and a non‐zero value otherwise. Specifically, return e_DISABLED" if `isPushBackDisabled(). On failure, `value' is not changed. The behavior is undefined unless the invoker of this method is the single producer.