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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_STATS_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_STATS_H_
#include <vector>
#include "base/feature_list.h"
#include "base/functional/callback.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/renderer/platform/allow_discouraged_type.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/webrtc/api/scoped_refptr.h"
#include "third_party/webrtc/api/stats/rtc_stats.h"
#include "third_party/webrtc/api/stats/rtc_stats_collector_callback.h"
#include "third_party/webrtc/api/stats/rtc_stats_report.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace webrtc {
class RTCStatsCollectorCallback;
enum class NonStandardGroupId;
} // namespace webrtc
namespace blink {
PLATFORM_EXPORT BASE_DECLARE_FEATURE(WebRtcUnshipDeprecatedStats);
// A thin wrapper around a webrtc::RTCStatsReport.
// TODO(https://crbug.com/1443999): Delete this class, it does not provide any
// value anymore and blink is allowed to use webrtc classes directly.
class PLATFORM_EXPORT RTCStatsReportPlatform {
public:
explicit RTCStatsReportPlatform(
const scoped_refptr<const webrtc::RTCStatsReport>& stats_report);
virtual ~RTCStatsReportPlatform();
// Creates a new report object that is a handle to the same underlying stats
// report (the stats are not copied). The new report's iterator is reset,
// useful when needing multiple iterators.
std::unique_ptr<RTCStatsReportPlatform> CopyHandle() const;
const webrtc::RTCStatsReport& stats_report() const { return *stats_report_; }
const webrtc::RTCStats* NextStats();
// The number of stats objects.
size_t Size() const;
private:
const scoped_refptr<const webrtc::RTCStatsReport> stats_report_;
webrtc::RTCStatsReport::ConstIterator it_;
const webrtc::RTCStatsReport::ConstIterator end_;
};
using RTCStatsReportCallback =
base::OnceCallback<void(std::unique_ptr<RTCStatsReportPlatform>)>;
PLATFORM_EXPORT
webrtc::scoped_refptr<webrtc::RTCStatsCollectorCallback>
CreateRTCStatsCollectorCallback(
scoped_refptr<base::SingleThreadTaskRunner> main_thread,
RTCStatsReportCallback callback);
// A stats collector callback.
// It is invoked on the WebRTC signaling thread and will post a task to invoke
// |callback| on the thread given in the |main_thread| argument.
// The argument to the callback will be a |RTCStatsReportPlatform|.
class PLATFORM_EXPORT RTCStatsCollectorCallbackImpl
: public webrtc::RTCStatsCollectorCallback {
public:
void OnStatsDelivered(
const webrtc::scoped_refptr<const webrtc::RTCStatsReport>& report)
override;
protected:
RTCStatsCollectorCallbackImpl(
scoped_refptr<base::SingleThreadTaskRunner> main_thread,
RTCStatsReportCallback callback);
~RTCStatsCollectorCallbackImpl() override;
void OnStatsDeliveredOnMainThread(
webrtc::scoped_refptr<const webrtc::RTCStatsReport> report);
const scoped_refptr<base::SingleThreadTaskRunner> main_thread_;
RTCStatsReportCallback callback_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_STATS_H_
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