1 /* 2 * Copyright (C) 2021 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_DYNAMIC_EXPERIMENTAL_ANNOTATED_STACK_GENERATOR_H_ 18 #define SRC_TRACE_PROCESSOR_DYNAMIC_EXPERIMENTAL_ANNOTATED_STACK_GENERATOR_H_ 19 20 #include "src/trace_processor/sqlite/db_sqlite_table.h" 21 22 namespace perfetto { 23 namespace trace_processor { 24 25 class TraceProcessorContext; 26 27 // The "experimental_annotated_callstack" dynamic table. 28 // 29 // Given a leaf callsite id, returns the full callstack (including the leaf), 30 // with optional (currently Android-specific) annotations. A given callsite will 31 // always have the same annotation. 32 class ExperimentalAnnotatedStackGenerator 33 : public DbSqliteTable::DynamicTableGenerator { 34 public: ExperimentalAnnotatedStackGenerator(TraceProcessorContext * context)35 ExperimentalAnnotatedStackGenerator(TraceProcessorContext* context) 36 : context_(context) {} 37 38 Table::Schema CreateSchema() override; 39 std::string TableName() override; 40 uint32_t EstimateRowCount() override; 41 util::Status ValidateConstraints(const QueryConstraints&) override; 42 std::unique_ptr<Table> ComputeTable(const std::vector<Constraint>& cs, 43 const std::vector<Order>& ob) override; 44 45 private: 46 TraceProcessorContext* context_ = nullptr; 47 }; 48 49 } // namespace trace_processor 50 } // namespace perfetto 51 52 #endif // SRC_TRACE_PROCESSOR_DYNAMIC_EXPERIMENTAL_ANNOTATED_STACK_GENERATOR_H_ 53