1 /* 2 * Copyright 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __VTS_DRIVER_PROFILING_INTERFACE_H_ 18 #define __VTS_DRIVER_PROFILING_INTERFACE_H_ 19 20 #include <android-base/macros.h> 21 #include <google/protobuf/io/zero_copy_stream_impl.h> 22 #include <hidl/HidlSupport.h> 23 #include <utils/Condition.h> 24 #include <fstream> 25 26 #include "test/vts/proto/ComponentSpecificationMessage.pb.h" 27 28 using namespace std; 29 30 namespace android { 31 namespace vts { 32 33 // Library class to trace, record, replay, and profile a HIDL HAL 34 // implementation. 35 class VtsProfilingInterface { 36 public: 37 // for the API entry on the stub side. 38 static const int kProfilingPointEntry; 39 // for the synchronous callback event on the stub side. 40 static const int kProfilingPointCallback; 41 // for the API exit on the stub side. 42 static const int kProfilingPointExit; 43 44 explicit VtsProfilingInterface(const string& trace_file_path); 45 46 virtual ~VtsProfilingInterface(); 47 48 void Init(); 49 50 // Get and create the VtsProfilingInterface singleton. 51 static VtsProfilingInterface& getInstance(const string& trace_file_path); 52 53 // returns true if the given message is added to the tracing queue. 54 bool AddTraceEvent( 55 android::hardware::details::HidlInstrumentor::InstrumentationEvent event, 56 const char* package, const char* version, const char* interface, 57 const FunctionSpecificationMessage& message); 58 59 private: 60 string trace_file_path_; // Path of the trace file. 61 // Writer to the trace file. 62 std::unique_ptr<google::protobuf::io::FileOutputStream> trace_output_; 63 Mutex mutex_; // Mutex used to synchronize the writing to the trace file. 64 bool initialized_; 65 66 DISALLOW_COPY_AND_ASSIGN(VtsProfilingInterface); 67 }; 68 69 } // namespace vts 70 } // namespace android 71 72 #endif // __VTS_DRIVER_PROFILING_INTERFACE_H_ 73
