blob: 4a6c447b0dded35922a7f0e21b2860cf002e344f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (c) 2012 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.
*/
#ifndef WEBRTC_VIDEO_ENGINE_CALL_STATS_H_
#define WEBRTC_VIDEO_ENGINE_CALL_STATS_H_
#include <list>
#include "webrtc/modules/interface/module.h"
#include "webrtc/system_wrappers/interface/constructor_magic.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
namespace webrtc {
class CriticalSectionWrapper;
class RtcpRttObserver;
class StatsObserver;
// CallStats keeps track of statistics for a call.
class CallStats : public Module {
public:
friend class RtcpObserver;
CallStats();
~CallStats();
// Implements Module, to use the process thread.
virtual int32_t TimeUntilNextProcess();
virtual int32_t Process();
// Returns a RtcpRttObserver to register at a statistics provider. The object
// has the same lifetime as the CallStats instance.
RtcpRttObserver* rtcp_rtt_observer() const;
// Registers/deregisters a new observer to receive statistics updates.
void RegisterStatsObserver(StatsObserver* observer);
void DeregisterStatsObserver(StatsObserver* observer);
protected:
void OnRttUpdate(uint32_t rtt);
private:
// Helper struct keeping track of the time a rtt value is reported.
struct RttTime {
RttTime(uint32_t new_rtt, int64_t rtt_time)
: rtt(new_rtt), time(rtt_time) {}
const uint32_t rtt;
const int64_t time;
};
// Protecting all members.
scoped_ptr<CriticalSectionWrapper> crit_;
// Observer receiving statistics updates.
scoped_ptr<RtcpRttObserver> rtcp_rtt_observer_;
// The last time 'Process' resulted in statistic update.
int64_t last_process_time_;
// All Rtt reports within valid time interval, oldest first.
std::list<RttTime> reports_;
// Observers getting stats reports.
std::list<StatsObserver*> observers_;
DISALLOW_COPY_AND_ASSIGN(CallStats);
};
} // namespace webrtc
#endif // WEBRTC_VIDEO_ENGINE_CALL_STATS_H_
|
