/* * Copyright (C) 2018 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_THREAD_TABLE_H_ #define SRC_TRACE_PROCESSOR_THREAD_TABLE_H_ #include <limits> #include <memory> #include "src/trace_processor/table.h" #include "src/trace_processor/trace_storage.h" namespace perfetto { namespace trace_processor { // The implementation of the SQLite table containing each unique process with // the metadata for those processes. class ThreadTable : public Table { public: enum Column { kUtid = 0, kUpid = 1, kName = 2, kTid = 3, kStartTs = 4 }; class Cursor : public Table::Cursor { public: Cursor(ThreadTable* table); // Implementation of Table::Cursor. int Filter(const QueryConstraints&, sqlite3_value**) override; int Next() override; int Eof() override; int Column(sqlite3_context*, int N) override; private: Cursor(Cursor&) = delete; Cursor& operator=(const Cursor&) = delete; Cursor(Cursor&&) noexcept = default; Cursor& operator=(Cursor&&) = default; UniqueTid min; UniqueTid max; UniqueTid current; bool desc; const TraceStorage* storage_ = nullptr; ThreadTable* table_ = nullptr; }; static void RegisterTable(sqlite3* db, const TraceStorage* storage); ThreadTable(sqlite3*, const TraceStorage*); // Table implementation. base::Optional<Table::Schema> Init(int, const char* const*) override; std::unique_ptr<Table::Cursor> CreateCursor() override; int BestIndex(const QueryConstraints&, BestIndexInfo*) override; private: const TraceStorage* const storage_; }; } // namespace trace_processor } // namespace perfetto #endif // SRC_TRACE_PROCESSOR_THREAD_TABLE_H_