| // 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/net_util.h" |
| #include "third_party/libjingle/source/talk/base/asyncresolverinterface.h" |
| |
| namespace base { |
| class MessageLoop; |
| class MessageLoopProxy; |
| } // 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 talk_base::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 talk_base::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::MessageLoopProxy> ipc_message_loop_; |
| scoped_refptr<base::MessageLoopProxy> delegate_message_loop_; |
| |
| // State must be accessed from delegate thread only. |
| State state_; |
| |
| // Accessed on the IPC thread only. |
| int32 request_id_; |
| bool registered_; |
| std::vector<talk_base::IPAddress> addresses_; |
| DoneCallback done_callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(P2PAsyncAddressResolver); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_P2P_HOST_ADDRESS_REQUEST_H_ |