1 // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "perf_protobuf_io.h" 6 7 #include <vector> 8 9 #include "base/logging.h" 10 11 #include "file_utils.h" 12 13 namespace quipper { 14 15 bool SerializeFromFile(const string& filename, PerfDataProto* perf_data_proto) { 16 return SerializeFromFileWithOptions(filename, PerfParserOptions(), 17 perf_data_proto); 18 } 19 20 bool SerializeFromFileWithOptions(const string& filename, 21 const PerfParserOptions& options, 22 PerfDataProto* perf_data_proto) { 23 PerfReader reader; 24 if (!reader.ReadFile(filename)) return false; 25 26 PerfParser parser(&reader, options); 27 if (!parser.ParseRawEvents()) return false; 28 29 if (!reader.Serialize(perf_data_proto)) return false; 30 31 // Append parser stats to protobuf. 32 PerfSerializer::SerializeParserStats(parser.stats(), perf_data_proto); 33 return true; 34 } 35 36 bool DeserializeToFile(const PerfDataProto& perf_data_proto, 37 const string& filename) { 38 PerfReader reader; 39 return reader.Deserialize(perf_data_proto) && reader.WriteFile(filename); 40 } 41 42 bool WriteProtobufToFile(const PerfDataProto& perf_data_proto, 43 const string& filename) { 44 string output; 45 perf_data_proto.SerializeToString(&output); 46 47 return BufferToFile(filename, output); 48 } 49 50 bool ReadProtobufFromFile(PerfDataProto* perf_data_proto, 51 const string& filename) { 52 std::vector<char> buffer; 53 if (!FileToBuffer(filename, &buffer)) return false; 54 55 bool ret = perf_data_proto->ParseFromArray(buffer.data(), buffer.size()); 56 57 LOG(INFO) << "#events" << perf_data_proto->events_size(); 58 59 return ret; 60 } 61 62 } // namespace quipper 63
