hipError_t hipStreamWaitEvent(hipStream_t stream, hipEvent_t event, unsigned int flags) {
HIP_INIT_SPECIAL_API(hipStreamWaitEvent, TRACE_SYNC, stream, event, flags);
hipError_t e = hipSuccess;
auto ecd = event->locked_copyCrit();
if (event == nullptr) {
e = hipErrorInvalidResourceHandle;
} else if ((ecd._state != hipEventStatusUnitialized) && (ecd._state != hipEventStatusCreated)) {
if (HIP_SYNC_STREAM_WAIT || (HIP_SYNC_NULL_STREAM && (stream == 0))) {
// conservative wait on host for the specified event to complete:
// return _stream->locked_eventWaitComplete(this, waitMode);
//
ecd._stream->locked_eventWaitComplete(
ecd.marker(), (event->_flags & hipEventBlockingSync) ? hc::hcWaitModeBlocked
: hc::hcWaitModeActive);
} else {
stream = ihipSyncAndResolveStream(stream);
// This will use create_blocking_marker to wait on the specified queue.
stream->locked_streamWaitEvent(ecd);
}
} // else event not recorded, return immediately and don't create marker.
return ihipLogStatus(e);
};
