1 /* 2 * Copyright (C) 2018 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_SCHED_SLICE_TABLE_H_ 18 #define SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_ 19 20 #include "src/trace_processor/ftrace_utils.h" 21 #include "src/trace_processor/storage_table.h" 22 23 namespace perfetto { 24 namespace trace_processor { 25 26 // The implementation of the SQLite table containing slices of CPU time with the 27 // metadata for those slices. 28 class SchedSliceTable : public StorageTable { 29 public: 30 SchedSliceTable(sqlite3*, const TraceStorage* storage); 31 32 static void RegisterTable(sqlite3* db, const TraceStorage* storage); 33 34 // StorageTable implementation. 35 StorageSchema CreateStorageSchema() override; 36 uint32_t RowCount() override; 37 int BestIndex(const QueryConstraints&, BestIndexInfo*) override; 38 39 private: 40 uint32_t EstimateQueryCost(const QueryConstraints& cs); 41 42 class EndStateColumn : public StorageColumn { 43 public: 44 EndStateColumn(std::string col_name, 45 const std::deque<ftrace_utils::TaskState>* deque); 46 ~EndStateColumn() override; 47 48 void ReportResult(sqlite3_context*, uint32_t row) const override; 49 50 void Filter(int op, sqlite3_value*, FilteredRowIndex*) const override; 51 52 Comparator Sort(const QueryConstraints::OrderBy&) const override; 53 54 Table::ColumnType GetType() const override; 55 56 private: 57 static constexpr uint16_t kNumStateStrings = 58 ftrace_utils::TaskState::kMaxState + 1; 59 std::array<ftrace_utils::TaskState::TaskStateStr, kNumStateStrings> 60 state_strings_; 61 62 void FilterOnState(int op, 63 sqlite3_value* value, 64 FilteredRowIndex* index) const; 65 66 const std::deque<ftrace_utils::TaskState>* deque_ = nullptr; 67 }; 68 69 const TraceStorage* const storage_; 70 }; 71 72 } // namespace trace_processor 73 } // namespace perfetto 74 75 #endif // SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_ 76