blob: 23bb667de1e8fd2b045020bc66e0866e5f3a04f0 (
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
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_HOST_SIGNALING_CONNECTOR_H
#define REMOTING_HOST_SIGNALING_CONNECTOR_H
#include "base/basictypes.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/non_thread_safe.h"
#include "base/timer.h"
#include "net/base/network_change_notifier.h"
#include "remoting/jingle_glue/signal_strategy.h"
namespace remoting {
// SignalingConnector listens for SignalStrategy status notifications
// and attempts to keep it connected when possible. When signalling is
// not connected it keeps trying to reconnect it until it is
// connected. It limits connection attempt rate using exponential
// backoff. It also monitors network state and reconnects signalling
// whenever online state changes or IP address changes.
class SignalingConnector
: public base::SupportsWeakPtr<SignalingConnector>,
public base::NonThreadSafe,
public SignalStrategy::Listener,
public net::NetworkChangeNotifier::OnlineStateObserver,
public net::NetworkChangeNotifier::IPAddressObserver {
public:
SignalingConnector(SignalStrategy* signal_strategy);
virtual ~SignalingConnector();
// SignalStrategy::Listener interface.
virtual void OnSignalStrategyStateChange(
SignalStrategy::State state) OVERRIDE;
// NetworkChangeNotifier::IPAddressObserver interface.
virtual void OnIPAddressChanged() OVERRIDE;
// NetworkChangeNotifier::OnlineStateObserver interface.
virtual void OnOnlineStateChanged(bool online) OVERRIDE;
private:
void ScheduleTryReconnect();
void ResetAndTryReconnect();
void TryReconnect();
SignalStrategy* signal_strategy_;
// Number of times we tried to connect without success.
int reconnect_attempts_;
base::OneShotTimer<SignalingConnector> timer_;
DISALLOW_COPY_AND_ASSIGN(SignalingConnector);
};
} // namespace remoting
#endif // REMOTING_HOST_SIGNALING_CONNECTOR_H
|
