1 /* 2 * Copyright (c) 2024 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 CLIENT_DEATH_HANDLER_H 17 #define CLIENT_DEATH_HANDLER_H 18 19 #include <map> 20 21 #include "input_binder_client_death_recipient.h" 22 23 namespace OHOS { 24 namespace MMI { 25 enum class CallBackType : int32_t { 26 CALLBACK_TYPE_AUTHORIZE_HELPER, 27 }; 28 using ClientDeathCallback = std::function<void(int32_t)>; 29 class ClientDeathHandler final : RefBase { 30 public: 31 ClientDeathHandler(); 32 ~ClientDeathHandler(); 33 DISALLOW_COPY_AND_MOVE(ClientDeathHandler); 34 bool RegisterClientDeathRecipient(const sptr<IRemoteObject> &binderClientSrv, int32_t pid); 35 bool AddClientDeathCallback(CallBackType type, ClientDeathCallback callback); 36 bool UnregisterClientDeathRecipient(const wptr<IRemoteObject> &remoteObj); 37 void RemoveClientDeathCallback(CallBackType type); 38 sptr<IRemoteObject> GetClientProxy(int32_t pid); 39 40 protected: 41 bool RegisterClientDeathRecipient(const sptr<IRemoteObject> &binderClientSrv); 42 bool AddClientPid(const sptr<IRemoteObject> &binderClientSrv, int32_t pid); 43 void RemoveClientPid(int32_t pid); 44 int32_t FindClientPid(const sptr<IRemoteObject> &binderClientSrv); 45 void NotifyDeath(int32_t pid); 46 47 private: 48 void OnDeath(const wptr<IRemoteObject> &remoteObj); 49 std::mutex mutexPidMap_; 50 std::map<int32_t, sptr<IRemoteObject>> clientPidMap_; 51 std::mutex mutexDeathRecipient_; 52 sptr<InputBinderClientDeathRecipient> deathRecipient_ = nullptr; 53 std::mutex mutexCallbacks_; 54 std::map<CallBackType, ClientDeathCallback> deathCallbacks_; 55 }; 56 } // namespace MMI 57 } // namespace OHOS 58 #endif // CLIENT_DEATH_HANDLER_H 59