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_PERFETTO_SQL_INTRINSICS_TABLE_FUNCTIONS_EXPERIMENTAL_ANNOTATED_STACK_H_ 18 #define SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_TABLE_FUNCTIONS_EXPERIMENTAL_ANNOTATED_STACK_H_ 19 20 #include <cstdint> 21 #include <memory> 22 #include <string> 23 #include <vector> 24 25 #include "perfetto/ext/base/status_or.h" 26 #include "perfetto/trace_processor/basic_types.h" 27 #include "src/trace_processor/db/table.h" 28 #include "src/trace_processor/perfetto_sql/intrinsics/table_functions/static_table_function.h" 29 30 namespace perfetto::trace_processor { 31 32 class TraceProcessorContext; 33 34 // The "experimental_annotated_callstack" dynamic table. 35 // 36 // Given a leaf callsite id, returns the full callstack (including the leaf), 37 // with optional (currently Android-specific) annotations. A given callsite will 38 // always have the same annotation. 39 class ExperimentalAnnotatedStack : public StaticTableFunction { 40 public: ExperimentalAnnotatedStack(TraceProcessorContext * context)41 explicit ExperimentalAnnotatedStack(TraceProcessorContext* context) 42 : context_(context) {} 43 44 Table::Schema CreateSchema() override; 45 std::string TableName() override; 46 uint32_t EstimateRowCount() override; 47 base::StatusOr<std::unique_ptr<Table>> ComputeTable( 48 const std::vector<SqlValue>& arguments) override; 49 50 private: 51 TraceProcessorContext* context_ = nullptr; 52 }; 53 54 } // namespace perfetto::trace_processor 55 56 #endif // SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_TABLE_FUNCTIONS_EXPERIMENTAL_ANNOTATED_STACK_H_ 57