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_SQLITE_CREATE_VIEW_FUNCTION_H_ 18 #define SRC_TRACE_PROCESSOR_SQLITE_CREATE_VIEW_FUNCTION_H_ 19 20 #include <sqlite3.h> 21 #include <unordered_map> 22 23 #include "src/trace_processor/sqlite/register_function.h" 24 25 namespace perfetto { 26 namespace trace_processor { 27 28 // Implementation of CREATE_VIEW_FUNCTION SQL function. 29 // See https://perfetto.dev/docs/analysis/metrics#metric-helper-functions for 30 // usage of this function. 31 struct CreateViewFunction : public SqlFunction { 32 using State = std::unordered_map<std::string, ScopedStmt>; 33 struct Context { 34 sqlite3* db; 35 }; 36 37 static base::Status Run(Context* ctx, 38 size_t argc, 39 sqlite3_value** argv, 40 SqlValue& out, 41 Destructors&); 42 43 static void RegisterTable(sqlite3* db, State* state); 44 }; 45 46 } // namespace trace_processor 47 } // namespace perfetto 48 49 #endif // SRC_TRACE_PROCESSOR_SQLITE_CREATE_VIEW_FUNCTION_H_ 50