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 #include "hiperf_client.h" 26 namespace OHOS { 27 namespace HiviewDFX { 28 class PeerBinderCatcher : public EventLogCatcher { 29 public: 30 explicit PeerBinderCatcher(); ~PeerBinderCatcher()31 ~PeerBinderCatcher() override{}; 32 bool Initialize(const std::string& perfCmd, int layer, int pid) override; 33 int Catch(int fd) override; 34 void Init(std::shared_ptr<SysEvent> event, const std::string& filePath); 35 36 static const inline std::string LOGGER_EVENT_PEERBINDER = "PeerBinder"; 37 static const inline std::string LOGGER_BINDER_DEBUG_PROC_PATH = "/proc/transaction_proc"; 38 static constexpr int BP_CMD_LAYER_INDEX = 1; 39 static constexpr int BP_CMD_PERF_TYPE_INDEX = 2; 40 static constexpr int PERF_LOG_EXPIRE_TIME = 60; 41 static constexpr size_t BP_CMD_SZ = 3; 42 43 private: 44 struct BinderInfo { 45 int client; 46 int server; 47 int wait; 48 }; 49 enum { 50 LOGGER_BINDER_STACK_ONE = 0, 51 LOGGER_BINDER_STACK_ALL = 1, 52 }; 53 54 int pid_ = 0; 55 int layer_ = 0; 56 std::string perfCmd_ = ""; 57 std::string binderPath_ = LOGGER_BINDER_DEBUG_PROC_PATH; 58 std::shared_ptr<SysEvent> event_ = nullptr; 59 std::unique_ptr<Developtools::HiPerf::HiperfClient::Client> perfClient_ = nullptr; 60 std::map<int, std::list<PeerBinderCatcher::BinderInfo>> BinderInfoParser(std::ifstream& fin, int fd) const; 61 void ParseBinderCallChain(std::map<int, std::list<PeerBinderCatcher::BinderInfo>>& manager, 62 std::set<int>& pids, int pid) const; 63 std::set<int> GetBinderPeerPids(int fd) const; 64 void CatcherStacktrace(int fd, int pid) const; 65 void ForkToDumpHiperf(const std::set<int>& pids); 66 void DoExecHiperf(const std::string& fileName, const std::set<int>& pids); 67 }; 68 } // namespace HiviewDFX 69 } // namespace OHOS 70 #endif // EVENT_LOGGER_PEER_BINDER_LOG_CATCHER