5b3541f9af
This implements the stats selection algorithm[1] in RTCStatsCollector by obtaining the selector's inbound-rtp/outbound-rtp stats and performing the stats traversal algorithm (TakeReferencedStats)[2] on a copy of the cached report with the rtps as starting point. Changes: - RTCStatsCollector.GetStatsReport() with selector arguments added. - RequestInfo added, "callbacks_" is replaced by "requests_". - RTCStatsReport.Copy() added. - New test for sender selector and receiver selector, RTCStatsCollectorTest.GetStatsWithSelector. [1] https://w3c.github.io/webrtc-pc/#dfn-stats-selection-algorithm [2] https://cs.chromium.org/chromium/src/third_party/webrtc/pc/rtcstatstraversal.h Bug: chromium:680172 Change-Id: I9eff00738a1f24c94c9c8ecd13c1304452e962cf Reviewed-on: https://webrtc-review.googlesource.com/62141 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Commit-Queue: Henrik Boström <hbos@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22499}
137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
/*
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* Copyright 2016 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 "api/stats/rtcstatsreport.h"
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#include <sstream>
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namespace webrtc {
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RTCStatsReport::ConstIterator::ConstIterator(
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const rtc::scoped_refptr<const RTCStatsReport>& report,
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StatsMap::const_iterator it)
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: report_(report),
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it_(it) {
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}
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RTCStatsReport::ConstIterator::ConstIterator(const ConstIterator&& other)
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: report_(std::move(other.report_)),
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it_(std::move(other.it_)) {
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}
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RTCStatsReport::ConstIterator::~ConstIterator() {
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}
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RTCStatsReport::ConstIterator& RTCStatsReport::ConstIterator::operator++() {
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++it_;
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return *this;
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}
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RTCStatsReport::ConstIterator& RTCStatsReport::ConstIterator::operator++(int) {
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return ++(*this);
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}
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const RTCStats& RTCStatsReport::ConstIterator::operator*() const {
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return *it_->second.get();
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}
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const RTCStats* RTCStatsReport::ConstIterator::operator->() const {
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return it_->second.get();
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}
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bool RTCStatsReport::ConstIterator::operator==(
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const RTCStatsReport::ConstIterator& other) const {
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return it_ == other.it_;
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}
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bool RTCStatsReport::ConstIterator::operator!=(
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const RTCStatsReport::ConstIterator& other) const {
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return !(*this == other);
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}
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rtc::scoped_refptr<RTCStatsReport> RTCStatsReport::Create(
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int64_t timestamp_us) {
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return rtc::scoped_refptr<RTCStatsReport>(
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new rtc::RefCountedObject<RTCStatsReport>(timestamp_us));
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}
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RTCStatsReport::RTCStatsReport(int64_t timestamp_us)
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: timestamp_us_(timestamp_us) {
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}
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RTCStatsReport::~RTCStatsReport() {
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}
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rtc::scoped_refptr<RTCStatsReport> RTCStatsReport::Copy() const {
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rtc::scoped_refptr<RTCStatsReport> copy = Create(timestamp_us_);
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for (auto it = stats_.begin(); it != stats_.end(); ++it) {
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copy->AddStats(it->second->copy());
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}
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return copy;
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}
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void RTCStatsReport::AddStats(std::unique_ptr<const RTCStats> stats) {
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auto result = stats_.insert(std::make_pair(std::string(stats->id()),
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std::move(stats)));
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RTC_DCHECK(result.second) <<
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"A stats object with ID " << result.first->second->id() << " is already "
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"present in this stats report.";
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}
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const RTCStats* RTCStatsReport::Get(const std::string& id) const {
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StatsMap::const_iterator it = stats_.find(id);
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if (it != stats_.cend())
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return it->second.get();
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return nullptr;
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}
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std::unique_ptr<const RTCStats> RTCStatsReport::Take(const std::string& id) {
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StatsMap::iterator it = stats_.find(id);
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if (it == stats_.end())
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return nullptr;
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std::unique_ptr<const RTCStats> stats = std::move(it->second);
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stats_.erase(it);
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return stats;
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}
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void RTCStatsReport::TakeMembersFrom(
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rtc::scoped_refptr<RTCStatsReport> victim) {
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for (StatsMap::iterator it = victim->stats_.begin();
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it != victim->stats_.end(); ++it) {
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AddStats(std::unique_ptr<const RTCStats>(it->second.release()));
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}
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victim->stats_.clear();
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}
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RTCStatsReport::ConstIterator RTCStatsReport::begin() const {
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return ConstIterator(rtc::scoped_refptr<const RTCStatsReport>(this),
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stats_.cbegin());
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}
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RTCStatsReport::ConstIterator RTCStatsReport::end() const {
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return ConstIterator(rtc::scoped_refptr<const RTCStatsReport>(this),
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stats_.cend());
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}
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std::string RTCStatsReport::ToJson() const {
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std::ostringstream oss;
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ConstIterator it = begin();
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if (it != end()) {
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oss << '[' << it->ToJson();
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for (++it; it != end(); ++it) {
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oss << "," << it->ToJson();
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}
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oss << ']';
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}
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return oss.str();
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}
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} // namespace webrtc
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