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With this CL, the only usage of RTCStatsMember within WebRTC is the actual type alias declaration. It's not referenced anywhere anymore. This allows us to deleting the type alias, but let's do that in a standalone CL in case it gets reverted. Bug: webrtc:15164 Change-Id: I766d07abb62b5ddd524859b8ed749394fc439e52 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/335621 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Evan Shrubsole <eshr@google.com> Commit-Queue: Henrik Boström <hbos@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41612}
134 lines
5.7 KiB
C++
134 lines
5.7 KiB
C++
/*
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* Copyright 2018 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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#include "pc/rtc_stats_traversal.h"
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include "absl/types/optional.h"
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#include "api/stats/rtcstats_objects.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace {
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void TraverseAndTakeVisitedStats(RTCStatsReport* report,
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RTCStatsReport* visited_report,
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const std::string& current_id) {
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// Mark current stats object as visited by moving it `report` to
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// `visited_report`.
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std::unique_ptr<const RTCStats> current = report->Take(current_id);
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if (!current) {
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// This node has already been visited (or it is an invalid id).
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return;
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}
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std::vector<const std::string*> neighbor_ids =
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GetStatsReferencedIds(*current);
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visited_report->AddStats(std::move(current));
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// Recursively traverse all neighbors.
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for (const auto* neighbor_id : neighbor_ids) {
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TraverseAndTakeVisitedStats(report, visited_report, *neighbor_id);
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}
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}
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void AddIdIfDefined(const absl::optional<std::string>& id,
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std::vector<const std::string*>* neighbor_ids) {
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if (id.has_value())
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neighbor_ids->push_back(&(*id));
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}
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} // namespace
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rtc::scoped_refptr<RTCStatsReport> TakeReferencedStats(
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rtc::scoped_refptr<RTCStatsReport> report,
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const std::vector<std::string>& ids) {
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rtc::scoped_refptr<RTCStatsReport> result =
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RTCStatsReport::Create(report->timestamp());
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for (const auto& id : ids) {
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TraverseAndTakeVisitedStats(report.get(), result.get(), id);
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}
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return result;
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}
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std::vector<const std::string*> GetStatsReferencedIds(const RTCStats& stats) {
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std::vector<const std::string*> neighbor_ids;
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const char* type = stats.type();
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if (type == RTCCertificateStats::kType) {
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const auto& certificate = static_cast<const RTCCertificateStats&>(stats);
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AddIdIfDefined(certificate.issuer_certificate_id, &neighbor_ids);
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} else if (type == RTCCodecStats::kType) {
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const auto& codec = static_cast<const RTCCodecStats&>(stats);
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AddIdIfDefined(codec.transport_id, &neighbor_ids);
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} else if (type == RTCDataChannelStats::kType) {
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// RTCDataChannelStats does not have any neighbor references.
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} else if (type == RTCIceCandidatePairStats::kType) {
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const auto& candidate_pair =
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static_cast<const RTCIceCandidatePairStats&>(stats);
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AddIdIfDefined(candidate_pair.transport_id, &neighbor_ids);
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AddIdIfDefined(candidate_pair.local_candidate_id, &neighbor_ids);
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AddIdIfDefined(candidate_pair.remote_candidate_id, &neighbor_ids);
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} else if (type == RTCLocalIceCandidateStats::kType ||
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type == RTCRemoteIceCandidateStats::kType) {
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const auto& local_or_remote_candidate =
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static_cast<const RTCIceCandidateStats&>(stats);
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AddIdIfDefined(local_or_remote_candidate.transport_id, &neighbor_ids);
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} else if (type == RTCPeerConnectionStats::kType) {
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// RTCPeerConnectionStats does not have any neighbor references.
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} else if (type == RTCInboundRtpStreamStats::kType) {
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const auto& inbound_rtp =
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static_cast<const RTCInboundRtpStreamStats&>(stats);
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AddIdIfDefined(inbound_rtp.remote_id, &neighbor_ids);
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AddIdIfDefined(inbound_rtp.transport_id, &neighbor_ids);
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AddIdIfDefined(inbound_rtp.codec_id, &neighbor_ids);
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AddIdIfDefined(inbound_rtp.playout_id, &neighbor_ids);
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} else if (type == RTCOutboundRtpStreamStats::kType) {
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const auto& outbound_rtp =
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static_cast<const RTCOutboundRtpStreamStats&>(stats);
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AddIdIfDefined(outbound_rtp.remote_id, &neighbor_ids);
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AddIdIfDefined(outbound_rtp.transport_id, &neighbor_ids);
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AddIdIfDefined(outbound_rtp.codec_id, &neighbor_ids);
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AddIdIfDefined(outbound_rtp.media_source_id, &neighbor_ids);
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} else if (type == RTCRemoteInboundRtpStreamStats::kType) {
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const auto& remote_inbound_rtp =
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static_cast<const RTCRemoteInboundRtpStreamStats&>(stats);
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AddIdIfDefined(remote_inbound_rtp.transport_id, &neighbor_ids);
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AddIdIfDefined(remote_inbound_rtp.codec_id, &neighbor_ids);
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AddIdIfDefined(remote_inbound_rtp.local_id, &neighbor_ids);
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} else if (type == RTCRemoteOutboundRtpStreamStats::kType) {
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const auto& remote_outbound_rtp =
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static_cast<const RTCRemoteOutboundRtpStreamStats&>(stats);
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// Inherited from `RTCRTPStreamStats`.
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AddIdIfDefined(remote_outbound_rtp.transport_id, &neighbor_ids);
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AddIdIfDefined(remote_outbound_rtp.codec_id, &neighbor_ids);
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// Direct members of `RTCRemoteOutboundRtpStreamStats`.
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AddIdIfDefined(remote_outbound_rtp.local_id, &neighbor_ids);
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} else if (type == RTCAudioSourceStats::kType ||
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type == RTCVideoSourceStats::kType) {
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// RTC[Audio/Video]SourceStats does not have any neighbor references.
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} else if (type == RTCTransportStats::kType) {
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const auto& transport = static_cast<const RTCTransportStats&>(stats);
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AddIdIfDefined(transport.rtcp_transport_stats_id, &neighbor_ids);
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AddIdIfDefined(transport.selected_candidate_pair_id, &neighbor_ids);
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AddIdIfDefined(transport.local_certificate_id, &neighbor_ids);
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AddIdIfDefined(transport.remote_certificate_id, &neighbor_ids);
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} else if (type == RTCAudioPlayoutStats::kType) {
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// RTCAudioPlayoutStats does not have any neighbor references.
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} else {
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RTC_DCHECK_NOTREACHED() << "Unrecognized type: " << type;
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}
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return neighbor_ids;
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}
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} // namespace webrtc
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