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 FOUNDATION_APPEXECFWK_SERVICES_APPMGR_INCLUDE_LMKS_CLIENT_H 17 #define FOUNDATION_APPEXECFWK_SERVICES_APPMGR_INCLUDE_LMKS_CLIENT_H 18 19 #include <functional> 20 #include <memory> 21 #include <string> 22 #include <utility> 23 #include <vector> 24 25 #include "ability_running_record.h" 26 #include "app_running_record.h" 27 #include "nocopyable.h" 28 29 namespace OHOS { 30 namespace AppExecFwk { 31 union LmksClientMsg { 32 int32_t result = -1; 33 int8_t resultBuf[sizeof(int32_t)]; 34 }; 35 36 class LmksClient : public NoCopyable { 37 public: 38 using Targets = std::vector<std::pair<int, int>>; 39 40 public: 41 LmksClient(); 42 virtual ~LmksClient(); 43 virtual int32_t Open(); 44 virtual void Close(); 45 virtual bool IsOpen() const; 46 virtual int32_t Target(const Targets &targets); 47 virtual int32_t ProcPrio(pid_t pid, uid_t uid, int oomAdj); 48 virtual int32_t ProcRemove(pid_t pid); 49 virtual bool ProcPurge(); 50 static bool CheckOomAdj(int v); 51 52 private: 53 bool Write(const void *buf, size_t len); 54 bool Read(void *buf, size_t len); 55 56 private: 57 int socket_; 58 }; 59 } // namespace AppExecFwk 60 } // namespace OHOS 61 62 #endif // FOUNDATION_APPEXECFWK_SERVICES_APPMGR_INCLUDE_LMKS_CLIENT_H 63