blob: 1fb0b7d957164842e4bf76f7d90e09d677cc243c (
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) 2011 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 CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_
#define CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_
#include <string>
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "net/base/ip_address_number.h"
#include "third_party/webrtc/base/asyncresolverinterface.h"
namespace base {
class MessageLoop;
class SingleThreadTaskRunner;
} // namespace base
namespace content {
class P2PSocketDispatcher;
// P2PAsyncAddressResolver performs DNS hostname resolution. It's used
// to resolve addresses of STUN and relay servers.
class P2PAsyncAddressResolver
: public base::RefCountedThreadSafe<P2PAsyncAddressResolver> {
public:
typedef base::Callback<void(const net::IPAddressList&)> DoneCallback;
P2PAsyncAddressResolver(P2PSocketDispatcher* dispatcher);
// Start address resolve process.
void Start(const rtc::SocketAddress& addr,
const DoneCallback& done_callback);
// Clients must unregister before exiting for cleanup.
void Cancel();
private:
enum State {
STATE_CREATED,
STATE_SENT,
STATE_FINISHED,
};
friend class P2PSocketDispatcher;
friend class base::RefCountedThreadSafe<P2PAsyncAddressResolver>;
virtual ~P2PAsyncAddressResolver();
void DoSendRequest(const rtc::SocketAddress& host_name,
const DoneCallback& done_callback);
void DoUnregister();
void OnResponse(const net::IPAddressList& address);
void DeliverResponse(const net::IPAddressList& address);
P2PSocketDispatcher* dispatcher_;
scoped_refptr<base::SingleThreadTaskRunner> ipc_task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> delegate_task_runner_;
// State must be accessed from delegate thread only.
State state_;
// Accessed on the IPC thread only.
int32 request_id_;
bool registered_;
std::vector<rtc::IPAddress> addresses_;
DoneCallback done_callback_;
DISALLOW_COPY_AND_ASSIGN(P2PAsyncAddressResolver);
};
} // namespace content
#endif // CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_
|
