| /* |
| * Copyright (C) 2020 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_PRELUDE_TABLE_FUNCTIONS_CONNECTED_FLOW_H_ |
| #define SRC_TRACE_PROCESSOR_PRELUDE_TABLE_FUNCTIONS_CONNECTED_FLOW_H_ |
| |
| #include "src/trace_processor/prelude/table_functions/table_function.h" |
| #include "src/trace_processor/storage/trace_storage.h" |
| #include "src/trace_processor/tables/flow_tables.h" |
| |
| #include <queue> |
| #include <set> |
| |
| namespace perfetto { |
| namespace trace_processor { |
| namespace tables { |
| |
| #define PERFETTO_TP_CONNECTED_FLOW_TABLE_DEF(NAME, PARENT, C) \ |
| NAME(ConnectedFlowTable, "not_exposed_to_sql") \ |
| PARENT(PERFETTO_TP_FLOW_TABLE_DEF, C) \ |
| C(uint32_t, start_id, Column::Flag::kHidden) |
| |
| PERFETTO_TP_TABLE(PERFETTO_TP_CONNECTED_FLOW_TABLE_DEF); |
| |
| } // namespace tables |
| |
| class TraceProcessorContext; |
| |
| // Implementation of tables: |
| // - DIRECTLY_CONNECTED_FLOW |
| // - PRECEDING_FLOW |
| // - FOLLOWING_FLOW |
| class ConnectedFlow : public TableFunction { |
| public: |
| enum class Mode { |
| // Directly connected slices through the same flow ID given by the trace |
| // writer. |
| kDirectlyConnectedFlow, |
| // Flow events which can be reached from the given slice by going over |
| // incoming flow events or to parent slices. |
| kPrecedingFlow, |
| // Flow events which can be reached from the given slice by going over |
| // outgoing flow events or to child slices. |
| kFollowingFlow, |
| }; |
| |
| ConnectedFlow(Mode mode, const TraceStorage*); |
| ~ConnectedFlow() override; |
| |
| Table::Schema CreateSchema() override; |
| std::string TableName() override; |
| uint32_t EstimateRowCount() override; |
| base::Status ValidateConstraints(const QueryConstraints&) override; |
| base::Status ComputeTable(const std::vector<Constraint>& cs, |
| const std::vector<Order>& ob, |
| const BitVector& cols_used, |
| std::unique_ptr<Table>& table_return) override; |
| |
| private: |
| Mode mode_; |
| const TraceStorage* storage_ = nullptr; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_PRELUDE_TABLE_FUNCTIONS_CONNECTED_FLOW_H_ |