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/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef API_UNITS_DATA_SIZE_H_
#define API_UNITS_DATA_SIZE_H_
#ifdef UNIT_TEST
#include <ostream> // no-presubmit-check TODO(webrtc:8982)
#endif // UNIT_TEST
#include <string>
#include <type_traits>
#include "rtc_base/units/unit_base.h"
namespace webrtc {
// DataSize is a class represeting a count of bytes.
class DataSize final : public rtc_units_impl::RelativeUnit<DataSize> {
public:
template <typename T>
static constexpr DataSize Bytes(T value) {
static_assert(std::is_arithmetic<T>::value, "");
return FromValue(value);
}
static constexpr DataSize Infinity() { return PlusInfinity(); }
DataSize() = delete;
template <typename T = int64_t>
constexpr T bytes() const {
return ToValue<T>();
}
constexpr int64_t bytes_or(int64_t fallback_value) const {
return ToValueOr(fallback_value);
}
private:
friend class rtc_units_impl::UnitBase<DataSize>;
using RelativeUnit::RelativeUnit;
static constexpr bool one_sided = true;
};
std::string ToString(DataSize value);
inline std::string ToLogString(DataSize value) {
return ToString(value);
}
#ifdef UNIT_TEST
inline std::ostream& operator<<( // no-presubmit-check TODO(webrtc:8982)
std::ostream& stream, // no-presubmit-check TODO(webrtc:8982)
DataSize value) {
return stream << ToString(value);
}
#endif // UNIT_TEST
} // namespace webrtc
#endif // API_UNITS_DATA_SIZE_H_
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