Method getLastQueuedCommand

rocclr/platform/commandqueue.cpp:359–381

}

Command* HostQueue::getLastQueuedCommand(bool retain) {
  if (AMD_DIRECT_DISPATCH) {
    // The batch update must be lock protected to avoid a race condition
    // when multiple threads submit/flush/update the batch at the same time
    ScopedLock sl(vdev()->execution());
    // Since the lastCmdLock_ is acquired, it is safe to read and retain the lastEnqueueCommand.
    // It is guaranteed that the pointer will not change.
    if (retain && lastEnqueueCommand_ != nullptr) {
      lastEnqueueCommand_->retain();
    }
    return lastEnqueueCommand_;
  } else {
    // Get last submitted command
    ScopedLock l(lastCmdLock_);

    // Since the lastCmdLock_ is acquired, it is safe to read and retain the lastEnqueueCommand.
    // It is guaranteed that the pointer will not change.
    if (retain && lastEnqueueCommand_ != nullptr) {
      lastEnqueueCommand_->retain();
    }
    return lastEnqueueCommand_;
  }
}

DeviceQueue::~DeviceQueue() {
  delete virtualDevice_;