// --------------------------------------------------------------------------
// The deprecated session API.  Please switch to the above instead of
// TF_ExtendGraph(). This deprecated API can be removed at any time without
// notice.

typedef struct TF_DeprecatedSession TF_DeprecatedSession;

TF_CAPI_EXPORT extern TF_DeprecatedSession* TF_NewDeprecatedSession(
    const TF_SessionOptions*, TF_Status* status);

  std::unique_ptr<Thread> thread_;
};

DeviceThread::~DeviceThread() {
  {
    tensorflow::mutex_lock l(execution_mutex_);
    execution_state_ = ExecutionState::kShuttingDown;
  }
  start_execute_.notify_one();
}

void DeviceThread::AsyncWait(TF_Status* status) {
  tensorflow::mutex_lock l(execution_mutex_);
  TFE_ExecutorWaitForAllPendingNodes(executor_.get(), status);
  TFE_ExecutorClearError(executor_.get());