RTCStats and RTCStatsReport added (webrtc/stats)

webrtc/stats/rtcstatsreport.cc

+/*
+ *  Copyright 2016 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.
+ */
+
+#include "webrtc/api/rtcstatsreport.h"
+
+namespace webrtc {
+
+RTCStatsReport::ConstIterator& RTCStatsReport::ConstIterator::operator++() {
+  ++it_;
+  return *this;
+}
+
+RTCStatsReport::ConstIterator& RTCStatsReport::ConstIterator::operator++(int) {
+  return ++(*this);
+}
+
+const RTCStats& RTCStatsReport::ConstIterator::operator*() const {
+  return *it_->second.get();
+}
+
+bool RTCStatsReport::ConstIterator::operator==(
+    const RTCStatsReport::ConstIterator& other) const {
+  return it_ == other.it_;
+}
+
+bool RTCStatsReport::ConstIterator::operator!=(
+    const RTCStatsReport::ConstIterator& other) const {
+  return !(*this == other);
+}
+
+rtc::scoped_refptr<RTCStatsReport> RTCStatsReport::Create() {
+  return rtc::scoped_refptr<RTCStatsReport>(
+      new rtc::RefCountedObject<RTCStatsReport>());
+}
+
+bool RTCStatsReport::AddStats(std::unique_ptr<const RTCStats> stats) {
+  return !stats_.insert(std::make_pair(std::string(stats->id()),
+                        std::move(stats))).second;
+}
+
+const RTCStats* RTCStatsReport::operator[](const std::string& id) const {
+  StatsMap::const_iterator it = stats_.find(id);
+  if (it != stats_.cend())
+    return it->second.get();
+  return nullptr;
+}
+
+RTCStatsReport::ConstIterator RTCStatsReport::begin() const {
+  return ConstIterator(rtc::scoped_refptr<const RTCStatsReport>(this),
+                       stats_.cbegin());
+}
+
+RTCStatsReport::ConstIterator RTCStatsReport::end() const {
+  return ConstIterator(rtc::scoped_refptr<const RTCStatsReport>(this),
+                       stats_.cend());
+}
+
+}  // namespace webrtc