chromium/third_party/perfetto/src/trace_processor/db/column/numeric_storage.h

/*
 * Copyright (C) 2023 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_DB_COLUMN_NUMERIC_STORAGE_H_
#define SRC_TRACE_PROCESSOR_DB_COLUMN_NUMERIC_STORAGE_H_

#include <algorithm>
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <type_traits>
#include <unordered_set>
#include <variant>
#include <vector>

#include "perfetto/public/compiler.h"
#include "perfetto/trace_processor/basic_types.h"
#include "src/trace_processor/containers/bit_vector.h"
#include "src/trace_processor/db/column/data_layer.h"
#include "src/trace_processor/db/column/storage_layer.h"
#include "src/trace_processor/db/column/types.h"
#include "src/trace_processor/db/column/utils.h"

namespace perfetto::trace_processor::column {

// Storage for all numeric type data (i.e. doubles, int32, int64, uint32).
class NumericStorageBase : public StorageLayer { … };

// Storage for all numeric type data (i.e. doubles, int32, int64, uint32).
template <typename T>
class NumericStorage final : public NumericStorageBase { … };

// Define external templates to reduce binary size bloat.
extern template class NumericStorage<double>;
extern template class NumericStorage<uint32_t>;
extern template class NumericStorage<int32_t>;
extern template class NumericStorage<int64_t>;

// Define external templates to allow splitting minimal vs full targets.
extern template std::unique_ptr<DataLayerChain>
NumericStorage<double>::MakeChain();
extern template std::unique_ptr<DataLayerChain>
NumericStorage<uint32_t>::MakeChain();
extern template std::unique_ptr<DataLayerChain>
NumericStorage<int32_t>::MakeChain();
extern template std::unique_ptr<DataLayerChain>
NumericStorage<int64_t>::MakeChain();

}  // namespace perfetto::trace_processor::column

#endif  // SRC_TRACE_PROCESSOR_DB_COLUMN_NUMERIC_STORAGE_H_