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/*
* 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
// * ancestor_slice_by_stack
//
// See docs/analysis/trace-processor for usage.
class AncestorGenerator : public DbSqliteTable::DynamicTableGenerator {
public:
enum class Ancestor {
kSlice = 1,
kStackProfileCallsite = 2,
kSliceByStack = 3
};
AncestorGenerator(Ancestor type, TraceProcessorContext* context);
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;
// 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_