1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_MESSAGE_QUEUE_H 17 #define OHOS_MESSAGE_QUEUE_H 18 19 #include <chrono> 20 #include <condition_variable> 21 #include <mutex> 22 #include "internal_message.h" 23 24 namespace OHOS { 25 namespace Wifi { 26 #define TIME_USEC_1000 1000 27 #define TIME_INTERVAL 30000 28 class MessageQueue { 29 public: 30 /** 31 * @Description : Construct a new Message Queue object. 32 * 33 */ 34 MessageQueue(); 35 36 /** 37 * @Description : Destroy the Message Queue object. 38 * 39 */ 40 ~MessageQueue(); 41 42 /** 43 * @Description : Inserting Messages into Queues. 44 * 45 * @param message - Message to be inserted.[in] 46 * @param handleTime - Message execution time.[in] 47 * @return true : success, false : failed. 48 */ 49 bool AddMessageToQueue(InternalMessage *message, int64_t handleTime); 50 51 /** 52 * @Description : Delete messages from the queue. 53 * 54 * @param messageName - Name of the message to be deleted.[in] 55 * @return true : success, false : failed. 56 */ 57 bool DeleteMessageFromQueue(int messageName); 58 59 /** 60 * @Description : Obtain messages from the queue for processing. 61 * If no message is found, the system blocks the messages. 62 * 63 */ 64 InternalMessage *GetNextMessage(); 65 66 /** 67 * @Description : Obtain messages from the queue for processing. 68 * If no message is found, the system blocks the messages. 69 */ 70 void StopQueueLoop(); 71 72 private: 73 /* Message Queuing */ 74 InternalMessage *pMessageQueue; 75 /* No messages to be executed, blocking */ 76 bool mIsBlocked; 77 /* Exit Loop */ 78 bool mNeedQuit; 79 /* Thread lock of operation queue */ 80 std::mutex mMtxQueue; 81 /* Blocked thread lock */ 82 std::mutex mMtxBlock; 83 /* blocking condition variable */ 84 std::condition_variable mCvQueue; 85 }; 86 } // namespace Wifi 87 } // namespace OHOS 88 #endif