1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_
6 #define CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_
10 #include "base/callback.h"
11 #include "base/memory/ref_counted.h"
12 #include "content/common/content_export.h"
13 #include "net/base/net_util.h"
14 #include "third_party/webrtc/base/asyncresolverinterface.h"
18 class MessageLoopProxy;
23 class P2PSocketDispatcher;
25 // P2PAsyncAddressResolver performs DNS hostname resolution. It's used
26 // to resolve addresses of STUN and relay servers.
27 class P2PAsyncAddressResolver
28 : public base::RefCountedThreadSafe<P2PAsyncAddressResolver> {
30 typedef base::Callback<void(const net::IPAddressList&)> DoneCallback;
32 P2PAsyncAddressResolver(P2PSocketDispatcher* dispatcher);
33 // Start address resolve process.
34 void Start(const rtc::SocketAddress& addr,
35 const DoneCallback& done_callback);
36 // Clients must unregister before exiting for cleanup.
46 friend class P2PSocketDispatcher;
48 friend class base::RefCountedThreadSafe<P2PAsyncAddressResolver>;
50 virtual ~P2PAsyncAddressResolver();
52 void DoSendRequest(const rtc::SocketAddress& host_name,
53 const DoneCallback& done_callback);
55 void OnResponse(const net::IPAddressList& address);
56 void DeliverResponse(const net::IPAddressList& address);
58 P2PSocketDispatcher* dispatcher_;
59 scoped_refptr<base::MessageLoopProxy> ipc_message_loop_;
60 scoped_refptr<base::MessageLoopProxy> delegate_message_loop_;
62 // State must be accessed from delegate thread only.
65 // Accessed on the IPC thread only.
68 std::vector<rtc::IPAddress> addresses_;
69 DoneCallback done_callback_;
71 DISALLOW_COPY_AND_ASSIGN(P2PAsyncAddressResolver);
74 } // namespace content
76 #endif // CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_