blob: beb865035394f65b4a28bee9d26a7f2c8aa6bb96 [file] [log] [blame]
* 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 <map>
#include <memory>
#include <string>
#include <vector>
#include "webrtc/api/stats/rtcstats.h"
#include "webrtc/base/refcount.h"
#include "webrtc/base/scoped_ref_ptr.h"
namespace webrtc {
// A collection of stats.
// This is accessible as a map from |RTCStats::id| to |RTCStats|.
class RTCStatsReport : public rtc::RefCountInterface {
typedef std::map<std::string, std::unique_ptr<const RTCStats>> StatsMap;
class ConstIterator {
ConstIterator(const ConstIterator&& other);
ConstIterator& operator++();
ConstIterator& operator++(int);
const RTCStats& operator*() const;
bool operator==(const ConstIterator& other) const;
bool operator!=(const ConstIterator& other) const;
friend class RTCStatsReport;
ConstIterator(const rtc::scoped_refptr<const RTCStatsReport>& report,
StatsMap::const_iterator it);
// Reference report to make sure it is kept alive.
rtc::scoped_refptr<const RTCStatsReport> report_;
StatsMap::const_iterator it_;
static rtc::scoped_refptr<RTCStatsReport> Create();
RTCStatsReport(const RTCStatsReport& other) = delete;
bool AddStats(std::unique_ptr<const RTCStats> stats);
const RTCStats* Get(const std::string& id) const;
size_t size() const { return stats_.size(); }
// Takes ownership of all the stats in |victim|, leaving it empty.
void TakeMembersFrom(rtc::scoped_refptr<RTCStatsReport> victim);
// Stats iterators. Stats are ordered lexicographically on |RTCStats::id|.
ConstIterator begin() const;
ConstIterator end() const;
// Gets the subset of stats that are of type |T|, where |T| is any class
// descending from |RTCStats|.
template<typename T>
std::vector<const T*> GetStatsOfType() const {
std::vector<const T*> stats_of_type;
for (const RTCStats& stats : *this) {
if (stats.type() == T::kType)
stats_of_type.push_back(&stats.cast_to<const T>());
return stats_of_type;
friend class rtc::RefCountedObject<RTCStatsReport>;
~RTCStatsReport() override;
StatsMap stats_;
} // namespace webrtc