content/browser/renderer_host/p2p/socket_host_udp.h

   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.
   4
   5 #ifndef CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_
   7
   8 #include <deque>
   9 #include <set>
  10 #include <vector>
  11
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/message_loop/message_loop.h"
  16 #include "content/browser/renderer_host/p2p/socket_host.h"
  17 #include "content/common/content_export.h"
  18 #include "content/common/p2p_socket_type.h"
  19 #include "net/base/ip_endpoint.h"
  20 #include "net/udp/udp_server_socket.h"
  21 #include "third_party/libjingle/source/talk/base/asyncpacketsocket.h"
  22
  23 namespace content {
  24
  25 class P2PMessageThrottler;
  26
  27 class CONTENT_EXPORT P2PSocketHostUdp : public P2PSocketHost {
  28  public:
  29   P2PSocketHostUdp(IPC::Sender* message_sender,
  30                    int socket_id,
  31                    P2PMessageThrottler* throttler);
  32   virtual ~P2PSocketHostUdp();
  33
  34   // P2PSocketHost overrides.
  35   virtual bool Init(const net::IPEndPoint& local_address,
  36                     const P2PHostAndIPEndPoint& remote_address) OVERRIDE;
  37   virtual void Send(const net::IPEndPoint& to,
  38                     const std::vector<char>& data,
  39                     const talk_base::PacketOptions& options,
  40                     uint64 packet_id) OVERRIDE;
  41   virtual P2PSocketHost* AcceptIncomingTcpConnection(
  42       const net::IPEndPoint& remote_address, int id) OVERRIDE;
  43   virtual bool SetOption(P2PSocketOption option, int value) OVERRIDE;
  44
  45  private:
  46   friend class P2PSocketHostUdpTest;
  47
  48   typedef std::set<net::IPEndPoint> ConnectedPeerSet;
  49
  50   struct PendingPacket {
  51     PendingPacket(const net::IPEndPoint& to,
  52                   const std::vector<char>& content,
  53                   const talk_base::PacketOptions& options,
  54                   uint64 id);
  55     ~PendingPacket();
  56     net::IPEndPoint to;
  57     scoped_refptr<net::IOBuffer> data;
  58     int size;
  59     talk_base::PacketOptions packet_options;
  60     uint64 id;
  61   };
  62
  63   void OnError();
  64
  65   void DoRead();
  66   void OnRecv(int result);
  67   void HandleReadResult(int result);
  68
  69   void DoSend(const PendingPacket& packet);
  70   void OnSend(uint64 packet_id, int result);
  71   void HandleSendResult(uint64 packet_id, int result);
  72
  73   scoped_ptr<net::DatagramServerSocket> socket_;
  74   scoped_refptr<net::IOBuffer> recv_buffer_;
  75   net::IPEndPoint recv_address_;
  76
  77   std::deque<PendingPacket> send_queue_;
  78   bool send_pending_;
  79   net::DiffServCodePoint last_dscp_;
  80
  81   // Set of peer for which we have received STUN binding request or
  82   // response or relay allocation request or response.
  83   ConnectedPeerSet connected_peers_;
  84   P2PMessageThrottler* throttler_;
  85
  86   DISALLOW_COPY_AND_ASSIGN(P2PSocketHostUdp);
  87 };
  88
  89 }  // namespace content
  90
  91 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_