1 /** 2 * Copyright 2019 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_UTIL_WAIT_POST_H_ 17 #define MINDSPORE_CCSRC_MINDDATA_DATASET_UTIL_WAIT_POST_H_ 18 19 #include <mutex> 20 #include "minddata/dataset/util/cond_var.h" 21 #include "minddata/dataset/util/status.h" 22 23 namespace mindspore { 24 namespace dataset { 25 class TaskGroup; 26 27 class WaitPost { 28 public: 29 WaitPost(); 30 31 ~WaitPost() = default; 32 33 Status Wait(); 34 35 void Set(); 36 37 void Clear(); 38 39 Status Register(TaskGroup *vg); 40 41 Status Deregister(); 42 43 void ResetIntrpState(); 44 45 private: 46 std::mutex mutex_; 47 CondVar wait_cond_; 48 int value_; 49 }; 50 } // namespace dataset 51 } // namespace mindspore 52 53 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_UTIL_WAIT_POST_H_ 54