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 #ifndef OHOS_STORAGE_DAEMON_NETLINK_LISTENER_H 16 #define OHOS_STORAGE_DAEMON_NETLINK_LISTENER_H 17 18 #include <poll.h> 19 #include <cstdint> 20 #include <memory> 21 #include <thread> 22 23 namespace OHOS { 24 namespace StorageDaemon { 25 class NetlinkListener { 26 public: 27 NetlinkListener(int32_t socket); 28 int32_t StartListener(); 29 int32_t StopListener(); 30 31 protected: 32 virtual void OnEvent(char *msg) = 0; 33 34 private: 35 int32_t socketFd_ { -1 }; 36 int32_t socketPipe_[2] { -1, -1 }; 37 std::unique_ptr<std::thread> socketThread_; 38 void RecvUeventMsg(); 39 int32_t ReadMsg(int32_t fd_count, struct pollfd ufds[2]); 40 void RunListener(); 41 static void EventProcess(void*); 42 }; 43 } // STORAGE_DAEMON 44 } // OHOS 45 46 #endif // OHOS_STORAGE_DAEMON_NETLINK_LISTENER_H 47