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/*
* Copyright (C) 2018 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_SCHED_SLICE_TABLE_H_
#define SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_
#include "src/trace_processor/ftrace_utils.h"
#include "src/trace_processor/storage_table.h"
namespace perfetto {
namespace trace_processor {
// The implementation of the SQLite table containing slices of CPU time with the
// metadata for those slices.
class SchedSliceTable : public StorageTable {
public:
SchedSliceTable(sqlite3*, const TraceStorage* storage);
static void RegisterTable(sqlite3* db, const TraceStorage* storage);
// StorageTable implementation.
StorageSchema CreateStorageSchema() override;
uint32_t RowCount() override;
int BestIndex(const QueryConstraints&, BestIndexInfo*) override;
private:
uint32_t EstimateQueryCost(const QueryConstraints& cs);
class EndStateColumn : public StorageColumn {
public:
EndStateColumn(std::string col_name,
const std::deque<ftrace_utils::TaskState>* deque);
~EndStateColumn() override;
void ReportResult(sqlite3_context*, uint32_t row) const override;
void Filter(int op, sqlite3_value*, FilteredRowIndex*) const override;
Comparator Sort(const QueryConstraints::OrderBy&) const override;
SqlValue::Type GetType() const override;
private:
static constexpr uint16_t kNumStateStrings =
ftrace_utils::TaskState::kMaxState + 1;
std::array<ftrace_utils::TaskState::TaskStateStr, kNumStateStrings>
state_strings_;
void FilterOnState(int op,
sqlite3_value* value,
FilteredRowIndex* index) const;
const std::deque<ftrace_utils::TaskState>* deque_ = nullptr;
};
const TraceStorage* const storage_;
};
} // namespace trace_processor
} // namespace perfetto
#endif // SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_
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