1 /* 2 * Copyright (C) 2021 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_PRELUDE_FUNCTIONS_CREATE_VIEW_FUNCTION_H_ 18 #define SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_CREATE_VIEW_FUNCTION_H_ 19 20 #include <sqlite3.h> 21 #include <unordered_map> 22 23 #include "src/trace_processor/prelude/functions/sql_function.h" 24 25 namespace perfetto { 26 namespace trace_processor { 27 28 class SqliteEngine; 29 30 // Implementation of CREATE_VIEW_FUNCTION SQL function. 31 // See https://perfetto.dev/docs/analysis/metrics#metric-helper-functions for 32 // usage of this function. 33 struct CreateViewFunction : public SqlFunction { 34 struct Context { 35 sqlite3* db; 36 }; 37 38 static constexpr bool kVoidReturn = true; 39 40 static base::Status Run(Context* ctx, 41 size_t argc, 42 sqlite3_value** argv, 43 SqlValue& out, 44 Destructors&); 45 }; 46 47 void RegisterCreateViewFunctionModule(SqliteEngine*); 48 49 } // namespace trace_processor 50 } // namespace perfetto 51 52 #endif // SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_CREATE_VIEW_FUNCTION_H_ 53