1 /* 2 * Copyright (C) 2019 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 SRC_TRACE_PROCESSOR_ARGS_TRACKER_H_ 18 #define SRC_TRACE_PROCESSOR_ARGS_TRACKER_H_ 19 20 #include "src/trace_processor/trace_processor_context.h" 21 #include "src/trace_processor/trace_storage.h" 22 23 namespace perfetto { 24 namespace trace_processor { 25 26 // Tracks and stores args for rows until the end of the packet. This allows 27 // allows args to pushed as a group into storage. 28 class ArgsTracker { 29 public: 30 using Variadic = TraceStorage::Args::Variadic; 31 32 explicit ArgsTracker(TraceProcessorContext*); 33 34 // Adds a arg for this row id with the given key and value. 35 void AddArg(RowId row_id, StringId flat_key, StringId key, Variadic); 36 37 // Commits the added args to storage. 38 void Flush(); 39 40 private: 41 std::vector<TraceStorage::Args::Arg> args_; 42 TraceProcessorContext* const context_; 43 }; 44 45 } // namespace trace_processor 46 } // namespace perfetto 47 48 #endif // SRC_TRACE_PROCESSOR_ARGS_TRACKER_H_ 49