80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
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/*
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* Copyright 2024 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_STATS_ATTRIBUTE_H_
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#define API_STATS_ATTRIBUTE_H_
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "absl/types/variant.h"
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#include "api/stats/rtc_stats_member.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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// A light-weight wrapper of an RTCStats attribute (an individual metric).
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class RTC_EXPORT Attribute : public RTCStatsMemberInterface {
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public:
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// TODO(https://crbug.com/webrtc/15164): Replace uses of RTCStatsMember<T>
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// with absl::optional<T> and update these pointer types.
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typedef absl::variant<const RTCStatsMember<bool>*,
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const RTCStatsMember<int32_t>*,
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const RTCStatsMember<uint32_t>*,
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const RTCStatsMember<int64_t>*,
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const RTCStatsMember<uint64_t>*,
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const RTCStatsMember<double>*,
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const RTCStatsMember<std::string>*,
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const RTCStatsMember<std::vector<bool>>*,
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const RTCStatsMember<std::vector<int32_t>>*,
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const RTCStatsMember<std::vector<uint32_t>>*,
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const RTCStatsMember<std::vector<int64_t>>*,
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const RTCStatsMember<std::vector<uint64_t>>*,
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const RTCStatsMember<std::vector<double>>*,
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const RTCStatsMember<std::vector<std::string>>*,
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const RTCStatsMember<std::map<std::string, uint64_t>>*,
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const RTCStatsMember<std::map<std::string, double>>*>
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StatVariant;
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template <typename T>
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explicit Attribute(const RTCStatsMember<T>* attribute)
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: RTCStatsMemberInterface(attribute->name()), attribute_(attribute) {}
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~Attribute() override;
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const char* name() const;
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const StatVariant& as_variant() const;
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static Attribute FromMemberInterface(const RTCStatsMemberInterface* member);
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// RTCStatsMemberInterface implementation.
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// TODO(https://crbug.com/webrtc/15164): Delete RTCStatsMemberInterface in
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// favor of absl::optional<T>.
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RTCStatsMemberInterface::Type type() const override;
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bool is_sequence() const override;
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bool is_string() const override;
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bool is_defined() const override;
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std::string ValueToString() const override;
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std::string ValueToJson() const override;
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protected:
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const RTCStatsMemberInterface* member_ptr() const override;
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bool IsEqual(const RTCStatsMemberInterface& other) const override;
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private:
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StatVariant attribute_;
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};
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Attribute MemberToAttribute(const RTCStatsMemberInterface* member);
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} // namespace webrtc
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#endif // API_STATS_ATTRIBUTE_H_
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