blob: e4fde102a051e1964c005dcea63b16c9fc92282e (
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
|
// Copyright 2015 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 NET_QUIC_NETWORK_CONNECTION_H_
#define NET_QUIC_NETWORK_CONNECTION_H_
#include "base/basictypes.h"
#include "net/base/net_export.h"
#include "net/base/network_change_notifier.h"
namespace net {
namespace test {
class NetworkConnectionPeer;
} // namespace test
// This class returns the current network's connection description. It also
// cache's the connection description to fix crbug.com/422516.
class NET_EXPORT NetworkConnection
: public NetworkChangeNotifier::IPAddressObserver,
public NetworkChangeNotifier::ConnectionTypeObserver {
public:
NetworkConnection();
~NetworkConnection() override {}
// Return a string equivalent of current connection type. Callers don't need
// to make a copy of the returned C-string value. If the connection type is
// CONNECTION_WIFI, then we'll tease out some details when we are on WiFi, and
// hopefully leave only ethernet (with no WiFi available) in the
// CONNECTION_UNKNOWN category. This *might* err if there is both ethernet,
// as well as WiFi, where WiFi was not being used that much. Most platforms
// don't distinguish Wifi vs Etherenet, and call everything CONNECTION_UNKNOWN
// :-(. Fo non CONNECTIION_WIFI, this returns the C-string returned by
// NetworkChangeNotifier::ConnectionTypeToString.
const char* GetDescription();
// It clears the cached connection_type_ and connection_description_.
void Clear();
// NetworkChangeNotifier::IPAddressObserver methods:
void OnIPAddressChanged() override;
// NetworkChangeNotifier::ConnectionTypeObserver methods:
void OnConnectionTypeChanged(
NetworkChangeNotifier::ConnectionType type) override;
private:
friend class test::NetworkConnectionPeer;
// Cache the connection_type and the connection description string to avoid
// calling expensive GetWifiPHYLayerProtocol() function.
NetworkChangeNotifier::ConnectionType connection_type_;
const char* connection_description_;
DISALLOW_COPY_AND_ASSIGN(NetworkConnection);
};
} // namespace net
#endif // NET_QUIC_NETWORK_CONNECTION_H_
|
