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_PRELUDE_TABLE_FUNCTIONS_VIEW_H_ 18 #define SRC_TRACE_PROCESSOR_PRELUDE_TABLE_FUNCTIONS_VIEW_H_ 19 20 #include "perfetto/ext/base/flat_hash_map.h" 21 #include "src/trace_processor/db/view.h" 22 #include "src/trace_processor/prelude/table_functions/table_function.h" 23 #include "src/trace_processor/storage/trace_storage.h" 24 25 namespace perfetto { 26 namespace trace_processor { 27 28 class ViewTableFunction : public TableFunction { 29 public: 30 explicit ViewTableFunction(const View*, const char* name); 31 ~ViewTableFunction() override; 32 33 Table::Schema CreateSchema() override; 34 std::string TableName() override; 35 uint32_t EstimateRowCount() override; 36 util::Status ValidateConstraints(const QueryConstraints&) override; 37 base::Status ComputeTable(const std::vector<Constraint>& cs, 38 const std::vector<Order>& ob, 39 const BitVector& cols_used, 40 std::unique_ptr<Table>& table) override; 41 42 private: 43 const View* view_ = nullptr; 44 const char* name_ = nullptr; 45 }; 46 47 } // namespace trace_processor 48 } // namespace perfetto 49 50 #endif // SRC_TRACE_PROCESSOR_PRELUDE_TABLE_FUNCTIONS_VIEW_H_ 51