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 EVENT_LOGGER_PEER_BINDER_LOG_CATCHER 16 #define EVENT_LOGGER_PEER_BINDER_LOG_CATCHER 17 #include <fstream> 18 #include <string> 19 #include <memory> 20 #include <vector> 21 22 #include "sys_event.h" 23 24 #include "event_log_catcher.h" 25 namespace OHOS { 26 namespace HiviewDFX { 27 class PeerBinderCatcher : public EventLogCatcher { 28 public: 29 explicit PeerBinderCatcher(); ~PeerBinderCatcher()30 ~PeerBinderCatcher() override{}; 31 bool Initialize(const std::string& strParam1, int pid, int layer) override; 32 int Catch(int fd) override; 33 void Init(std::shared_ptr<SysEvent> event, const std::string& filePath); 34 35 static const inline std::string LOGGER_EVENT_PEERBINDER = "PeerBinder"; 36 static const inline std::string LOGGER_BINDER_DEBUG_PROC_PATH = "/proc/transaction_proc"; 37 private: 38 struct BinderInfo { 39 int client; 40 int server; 41 int wait; 42 }; 43 enum { 44 LOGGER_BINDER_STACK_ONE = 0, 45 LOGGER_BINDER_STACK_ALL = 1, 46 }; 47 48 int pid_ = 0; 49 int layer_ = 0; 50 std::string binderPath_ = LOGGER_BINDER_DEBUG_PROC_PATH; 51 std::shared_ptr<SysEvent> event_ = nullptr; 52 53 std::map<int, std::list<PeerBinderCatcher::BinderInfo>> BinderInfoParser(std::ifstream& fin, int fd) const; 54 void ParseBinderCallChain(std::map<int, std::list<PeerBinderCatcher::BinderInfo>>& manager, 55 std::set<int>& pids, int pid) const; 56 std::set<int> GetBinderPeerPids(int fd) const; 57 void CatcherStacktrace(int fd, int pid) const; 58 }; 59 } // namespace HiviewDFX 60 } // namespace OHOS 61 #endif // EVENT_LOGGER_PEER_BINDER_LOG_CATCHER