1 /* 2 * Copyright (C) 2022 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_PERFETTO_SQL_INTRINSICS_FUNCTIONS_TO_FTRACE_H_ 18 #define SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_FUNCTIONS_TO_FTRACE_H_ 19 20 #include "perfetto/ext/base/flat_hash_map.h" 21 #include "perfetto/ext/base/string_writer.h" 22 #include "src/trace_processor/perfetto_sql/intrinsics/functions/sql_function.h" 23 #include "src/trace_processor/storage/trace_storage.h" 24 #include "src/trace_processor/types/trace_processor_context.h" 25 26 namespace perfetto { 27 namespace trace_processor { 28 29 class SystraceSerializer { 30 public: 31 using ScopedCString = std::unique_ptr<char, void (*)(void*)>; 32 33 explicit SystraceSerializer(TraceProcessorContext* context); 34 35 ScopedCString SerializeToString(uint32_t raw_row); 36 37 private: 38 using StringIdMap = 39 base::FlatHashMap<StringId, std::vector<std::optional<uint32_t>>>; 40 41 void SerializePrefix(uint32_t raw_row, base::StringWriter* writer); 42 43 StringIdMap proto_id_to_arg_index_by_event_; 44 const TraceStorage* storage_ = nullptr; 45 TraceProcessorContext* context_ = nullptr; 46 }; 47 48 struct ToFtrace : public SqlFunction { 49 struct Context { 50 const TraceStorage* storage; 51 SystraceSerializer serializer; 52 }; 53 54 static base::Status Run(Context*, 55 size_t argc, 56 sqlite3_value** argv, 57 SqlValue& out, 58 Destructors& destructors); 59 }; 60 61 } // namespace trace_processor 62 } // namespace perfetto 63 64 #endif // SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_FUNCTIONS_TO_FTRACE_H_ 65