BloombergLP::bdlmt::FixedThreadPool::tryEnqueueJob

Enqueue the specified function to be executed by the next available thread. The specified userData pointer will be passed to the function by the processing thread. Return 0 on success, and a non‐zero value otherwise. Specifically, return e_SUCCESS on success, e_DISABLED if !isEnabled(), e_FULL if isEnabled() and the underlying queue was full, and e_FAILED if an error occurs. The behavior is undefined unless function is not null.