/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_
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#define SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_
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#include "src/trace_processor/ftrace_utils.h"
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#include "src/trace_processor/storage_table.h"
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namespace perfetto {
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namespace trace_processor {
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// The implementation of the SQLite table containing slices of CPU time with the
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// metadata for those slices.
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class SchedSliceTable : public StorageTable {
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public:
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SchedSliceTable(sqlite3*, const TraceStorage* storage);
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static void RegisterTable(sqlite3* db, const TraceStorage* storage);
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// StorageTable implementation.
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StorageSchema CreateStorageSchema() override;
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uint32_t RowCount() override;
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int BestIndex(const QueryConstraints&, BestIndexInfo*) override;
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private:
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uint32_t EstimateQueryCost(const QueryConstraints& cs);
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class EndStateColumn : public StorageColumn {
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public:
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EndStateColumn(std::string col_name,
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const std::deque<ftrace_utils::TaskState>* deque);
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~EndStateColumn() override;
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void ReportResult(sqlite3_context*, uint32_t row) const override;
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void Filter(int op, sqlite3_value*, FilteredRowIndex*) const override;
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Comparator Sort(const QueryConstraints::OrderBy&) const override;
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Table::ColumnType GetType() const override;
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private:
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static constexpr uint16_t kNumStateStrings =
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ftrace_utils::TaskState::kMaxState + 1;
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std::array<ftrace_utils::TaskState::TaskStateStr, kNumStateStrings>
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state_strings_;
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void FilterOnState(int op,
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sqlite3_value* value,
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FilteredRowIndex* index) const;
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const std::deque<ftrace_utils::TaskState>* deque_ = nullptr;
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};
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const TraceStorage* const storage_;
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};
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} // namespace trace_processor
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} // namespace perfetto
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#endif // SRC_TRACE_PROCESSOR_SCHED_SLICE_TABLE_H_
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