| /* |
| * 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_DYNAMIC_ANCESTOR_GENERATOR_H_ |
| #define SRC_TRACE_PROCESSOR_DYNAMIC_ANCESTOR_GENERATOR_H_ |
| |
| #include "src/trace_processor/sqlite/db_sqlite_table.h" |
| |
| #include "perfetto/ext/base/optional.h" |
| #include "src/trace_processor/storage/trace_storage.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| class TraceProcessorContext; |
| |
| // Implements the following dynamic tables: |
| // * ancestor_slice |
| // * experimental_ancestor_stack_profile_callsite |
| // |
| // See docs/analysis/trace-processor for usage. |
| class AncestorGenerator : public DbSqliteTable::DynamicTableGenerator { |
| public: |
| enum class Ancestor { kSlice = 1, kStackProfileCallsite = 2 }; |
| |
| AncestorGenerator(Ancestor type, TraceProcessorContext* context); |
| |
| Table::Schema CreateSchema() override; |
| std::string TableName() override; |
| uint32_t EstimateRowCount() override; |
| util::Status ValidateConstraints(const QueryConstraints&) override; |
| std::unique_ptr<Table> ComputeTable(const std::vector<Constraint>& cs, |
| const std::vector<Order>& ob) override; |
| |
| // Returns a RowMap of slice IDs which are ancestors of |slice_id|. Returns |
| // NULL if an invalid |slice_id| is given. This is used by |
| // ConnectedFlowGenerator to traverse flow indirectly connected flow events. |
| static base::Optional<RowMap> GetAncestorSlices( |
| const tables::SliceTable& slices, |
| SliceId slice_id); |
| |
| private: |
| Ancestor type_; |
| TraceProcessorContext* context_ = nullptr; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_DYNAMIC_ANCESTOR_GENERATOR_H_ |