| 345 | } |
| 346 | |
| 347 | Status GrpcSession::Close() { |
| 348 | CloseSessionRequest req; |
| 349 | { |
| 350 | mutex_lock l(mu_); |
| 351 | if (handle_.empty()) { |
| 352 | return Status::OK(); |
| 353 | } |
| 354 | req.set_session_handle(handle_); |
| 355 | handle_.clear(); |
| 356 | } |
| 357 | CloseSessionResponse resp; |
| 358 | CallOptions call_options; |
| 359 | call_options.SetTimeout(options_.config.operation_timeout_in_ms()); |
| 360 | return master_->CloseSession(&call_options, &req, &resp); |
| 361 | } |
| 362 | |
| 363 | Status GrpcSession::ListDevices(std::vector<DeviceAttributes>* response) { |
| 364 | ListDevicesRequest req; |