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Viewing changes to protocols/jabber/libjingle/talk/p2p/base/tcpport.h

  • Committer: Package Import Robot
  • Author(s): Maximiliano Curia
  • Date: 2015-02-24 11:32:57 UTC
  • mfrom: (1.1.41 vivid)
  • Revision ID: package-import@ubuntu.com-20150224113257-gnupg4v7lzz18ij0
Tags: 4:14.12.2-1
* New upstream release (14.12.2).
* Bump Standards-Version to 3.9.6, no changes needed.

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protocols/jabber/libjingle/talk/p2p/base/tcpport.h
 
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/*
 
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 * libjingle
 
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 * Copyright 2004--2005, Google Inc.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions are met:
 
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 *
 
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 *  1. Redistributions of source code must retain the above copyright notice,
 
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 *     this list of conditions and the following disclaimer.
 
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 *  2. Redistributions in binary form must reproduce the above copyright notice,
 
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 *     this list of conditions and the following disclaimer in the documentation
 
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 *     and/or other materials provided with the distribution.
 
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 *  3. The name of the author may not be used to endorse or promote products
 
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 *     derived from this software without specific prior written permission.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 
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 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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#ifndef TALK_P2P_BASE_TCPPORT_H_
 
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#define TALK_P2P_BASE_TCPPORT_H_
 
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#include <string>
 
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#include <list>
 
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#include "talk/base/asyncpacketsocket.h"
 
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#include "talk/p2p/base/port.h"
 
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namespace cricket {
 
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class TCPConnection;
 
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extern const char LOCAL_PORT_TYPE[];  // type of TCP ports
 
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// Communicates using a local TCP port.
 
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//
 
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// This class is designed to allow subclasses to take advantage of the
 
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// connection management provided by this class.  A subclass should take of all
 
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// packet sending and preparation, but when a packet is received, it should
 
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// call this TCPPort::OnReadPacket (3 arg) to dispatch to a connection.
 
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class TCPPort : public Port {
 
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 public:
 
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  static TCPPort* Create(talk_base::Thread* thread,
 
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                         talk_base::PacketSocketFactory* factory,
 
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                         talk_base::Network* network,
 
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                         const talk_base::IPAddress& ip,
 
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                         int min_port, int max_port,
 
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                         bool allow_listen) {
 
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    TCPPort* port = new TCPPort(thread, factory, network,
 
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                                ip, min_port, max_port, allow_listen);
 
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    if (!port->Init()) {
 
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      delete port;
 
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      port = NULL;
 
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    }
 
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    return port;
 
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  }
 
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  virtual ~TCPPort();
 
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  virtual Connection* CreateConnection(const Candidate& address,
 
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                                       CandidateOrigin origin);
 
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  virtual void PrepareAddress();
 
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  virtual int GetOption(talk_base::Socket::Option opt, int* value);
 
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  virtual int SetOption(talk_base::Socket::Option opt, int value);
 
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  virtual int GetError();
 
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 protected:
 
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  TCPPort(talk_base::Thread* thread, talk_base::PacketSocketFactory* factory,
 
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          talk_base::Network* network, const talk_base::IPAddress& ip,
 
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          int min_port, int max_port, bool allow_listen);
 
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  bool Init();
 
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  // Handles sending using the local TCP socket.
 
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  virtual int SendTo(const void* data, size_t size,
 
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                     const talk_base::SocketAddress& addr, bool payload);
 
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  // Accepts incoming TCP connection.
 
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  void OnNewConnection(talk_base::AsyncPacketSocket* socket,
 
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                       talk_base::AsyncPacketSocket* new_socket);
 
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 private:
 
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  struct Incoming {
 
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    talk_base::SocketAddress addr;
 
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    talk_base::AsyncPacketSocket* socket;
 
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  };
 
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  talk_base::AsyncPacketSocket* GetIncoming(
 
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      const talk_base::SocketAddress& addr, bool remove = false);
 
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  // Receives packet signal from the local TCP Socket.
 
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  void OnReadPacket(talk_base::AsyncPacketSocket* socket,
 
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                    const char* data, size_t size,
 
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                    const talk_base::SocketAddress& remote_addr);
 
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  void OnAddressReady(talk_base::AsyncPacketSocket* socket,
 
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                      const talk_base::SocketAddress& address);
 
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  // TODO: Is this still needed?
 
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  bool incoming_only_;
 
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  bool allow_listen_;
 
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  talk_base::AsyncPacketSocket* socket_;
 
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  int error_;
 
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  std::list<Incoming> incoming_;
 
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  friend class TCPConnection;
 
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};
 
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class TCPConnection : public Connection {
 
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 public:
 
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  // Connection is outgoing unless socket is specified
 
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  TCPConnection(TCPPort* port, const Candidate& candidate,
 
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                talk_base::AsyncPacketSocket* socket = 0);
 
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  virtual ~TCPConnection();
 
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  virtual int Send(const void* data, size_t size);
 
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  virtual int GetError();
 
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  talk_base::AsyncPacketSocket* socket() { return socket_; }
 
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 private:
 
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  void OnConnect(talk_base::AsyncPacketSocket* socket);
 
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  void OnClose(talk_base::AsyncPacketSocket* socket, int error);
 
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  void OnReadPacket(talk_base::AsyncPacketSocket* socket,
 
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                    const char* data, size_t size,
 
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                    const talk_base::SocketAddress& remote_addr);
 
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  talk_base::AsyncPacketSocket* socket_;
 
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  int error_;
 
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  friend class TCPPort;
 
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};
 
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}  // namespace cricket
 
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#endif  // TALK_P2P_BASE_TCPPORT_H_