| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SRC_TRACE_PROCESSOR_SQLITE_DB_SQLITE_TABLE_H_ |
| #define SRC_TRACE_PROCESSOR_SQLITE_DB_SQLITE_TABLE_H_ |
| |
| #include "src/trace_processor/db/table.h" |
| #include "src/trace_processor/sqlite/sqlite_table.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| // Implements the SQLite table interface for db tables. |
| class DbSqliteTable : public SqliteTable { |
| public: |
| class Cursor final : public SqliteTable::Cursor { |
| public: |
| explicit Cursor(DbSqliteTable* table); |
| |
| // Implementation of SqliteTable::Cursor. |
| int Filter(const QueryConstraints& qc, sqlite3_value** argv) override; |
| int Next() override; |
| int Eof() override; |
| int Column(sqlite3_context*, int N) override; |
| |
| private: |
| const Table* initial_db_table_ = nullptr; |
| |
| base::Optional<Table> db_table_; |
| base::Optional<Table::Iterator> iterator_; |
| |
| std::vector<Constraint> constraints_; |
| std::vector<Order> orders_; |
| }; |
| |
| static void RegisterTable(sqlite3* db, |
| const Table* table, |
| const std::string& name); |
| |
| DbSqliteTable(sqlite3*, const Table* table); |
| virtual ~DbSqliteTable() override; |
| |
| // Table implementation. |
| util::Status Init(int, |
| const char* const*, |
| SqliteTable::Schema*) override final; |
| std::unique_ptr<SqliteTable::Cursor> CreateCursor() override; |
| int BestIndex(const QueryConstraints&, BestIndexInfo*) override; |
| |
| private: |
| double EstimateCost(const QueryConstraints& qc); |
| |
| const Table* table_ = nullptr; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_SQLITE_DB_SQLITE_TABLE_H_ |