blob: aca9377d34f88ea341685c6388e705dbc30126c6 (
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
|
// Copyright (c) 2010 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_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
#define NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
#include "base/basictypes.h"
#include "base/message_loop.h"
#include "base/scoped_ptr.h"
#include "net/base/network_change_notifier.h"
namespace base {
class Thread;
}
namespace net {
class NetworkChangeNotifierLinux : public MessageLoop::DestructionObserver,
public MessageLoopForIO::Watcher,
public NetworkChangeNotifier {
public:
NetworkChangeNotifierLinux();
private:
virtual ~NetworkChangeNotifierLinux();
// MessageLoop::DestructionObserver:
virtual void WillDestroyCurrentMessageLoop();
// MessageLoopForIO::Watcher:
virtual void OnFileCanReadWithoutBlocking(int fd);
virtual void OnFileCanWriteWithoutBlocking(int /* fd */);
// Called on the notifier thread to initialize the notification
// implementation.
void Init();
// Starts listening for netlink messages. Also handles the messages if there
// are any available on the netlink socket.
void ListenForNotifications();
// Attempts to read from the netlink socket into |buf| of length |len|.
// Returns the bytes read on synchronous success and ERR_IO_PENDING if the
// recv() would block. Otherwise, it returns a net error code.
int ReadNotificationMessage(char* buf, size_t len);
// The thread used to listen for notifications. This relays the notification
// to the registered observers without posting back to the thread the object
// was created on.
scoped_ptr<base::Thread> notifier_thread_;
// The netlink socket descriptor.
int netlink_fd_;
MessageLoopForIO::FileDescriptorWatcher netlink_watcher_;
DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierLinux);
};
} // namespace net
#endif // NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
|
