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/*
* Copyright (c) 2019 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 LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_GENERIC_ACK_RECEIVED_H_
#define LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_GENERIC_ACK_RECEIVED_H_
#include <memory>
#include <vector>
#include "absl/types/optional.h"
#include "api/rtc_event_log/rtc_event.h"
namespace webrtc {
struct AckedPacket {
// The packet number that was acked.
int64_t packet_number;
// The time where the packet was received. Not every ACK will
// include the receive timestamp.
absl::optional<int64_t> receive_acked_packet_time_ms;
};
class RtcEventGenericAckReceived final : public RtcEvent {
public:
static constexpr Type kType = Type::GenericAckReceived;
// For a collection of acked packets, it creates a vector of logs to log with
// the same timestamp.
static std::vector<std::unique_ptr<RtcEventGenericAckReceived>> CreateLogs(
int64_t packet_number,
const std::vector<AckedPacket>& acked_packets);
~RtcEventGenericAckReceived() override;
std::unique_ptr<RtcEventGenericAckReceived> Copy() const;
Type GetType() const override { return kType; }
bool IsConfigEvent() const override { return false; }
// An identifier of the packet which contained an ack.
int64_t packet_number() const { return packet_number_; }
// An identifier of the acked packet.
int64_t acked_packet_number() const { return acked_packet_number_; }
// Timestamp when the |acked_packet_number| was received by the remote side.
absl::optional<int64_t> receive_acked_packet_time_ms() const {
return receive_acked_packet_time_ms_;
}
private:
RtcEventGenericAckReceived(const RtcEventGenericAckReceived& packet);
// When the ack is received, |packet_number| identifies the packet which
// contained an ack for |acked_packet_number|, and contains the
// |receive_acked_packet_time_ms| on which the |acked_packet_number| was
// received on the remote side. The |receive_acked_packet_time_ms| may be
// null.
RtcEventGenericAckReceived(
int64_t timestamp_us,
int64_t packet_number,
int64_t acked_packet_number,
absl::optional<int64_t> receive_acked_packet_time_ms);
const int64_t packet_number_;
const int64_t acked_packet_number_;
const absl::optional<int64_t> receive_acked_packet_time_ms_;
};
struct LoggedGenericAckReceived {
LoggedGenericAckReceived() = default;
LoggedGenericAckReceived(int64_t timestamp_us,
int64_t packet_number,
int64_t acked_packet_number,
absl::optional<int64_t> receive_acked_packet_time_ms)
: timestamp_us(timestamp_us),
packet_number(packet_number),
acked_packet_number(acked_packet_number),
receive_acked_packet_time_ms(receive_acked_packet_time_ms) {}
int64_t log_time_us() const { return timestamp_us; }
int64_t log_time_ms() const { return timestamp_us / 1000; }
int64_t timestamp_us;
int64_t packet_number;
int64_t acked_packet_number;
absl::optional<int64_t> receive_acked_packet_time_ms;
};
} // namespace webrtc
#endif // LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_GENERIC_ACK_RECEIVED_H_
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