src/lib/platform/sockets/tcp.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   6  * libCEC(R) is an original work, containing original code.
   7  *
   8  * libCEC(R) is a trademark of Pulse-Eight Limited.
   9  *
  10  * This program is dual-licensed; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  *
  25  * Alternatively, you can license this library under a commercial license,
  26  * please contact Pulse-Eight Licensing for more information.
  27  *
  28  * For more information contact:
  29  * Pulse-Eight Licensing       <license@pulse-eight.com>
  30  *     http://www.pulse-eight.com/
  31  *     http://www.pulse-eight.net/
  32  */
  33
  34 #include "socket.h"
  35
  36 #if defined(__WINDOWS__)
  37 #include "../windows/os-tcp.h"
  38 #else
  39 #include "../posix/os-tcp.h"
  40 #endif
  41
  42 using namespace std;
  43
  44 namespace PLATFORM
  45 {
  46   class CTcpSocket : public CSocket
  47   {
  48     public:
  49       CTcpSocket(void) {};
  50       virtual ~CTcpSocket(void) {}
  51
  52       virtual bool Open(const CStdString &strHostname, uint16_t iPort, uint64_t nTimeout)
  53       {
  54         bool bReturn(false);
  55         struct addrinfo *address(NULL), *addr(NULL);
  56         CLockObject lock(m_mutex);
  57         if (!TcpResolveAddress(strHostname.c_str(), iPort, &m_iError, &address))
  58         {
  59           m_strError = strerror(m_iError);
  60           return bReturn;
  61         }
  62
  63         for(addr = address; !bReturn && addr; addr = addr->ai_next)
  64         {
  65           m_socket = TcpCreateSocket(addr, &m_iError, nTimeout);
  66           if (m_socket != INVALID_SOCKET && m_socket != SOCKET_ERROR)
  67             bReturn = true;
  68           else
  69             m_strError = strerror(m_iError);
  70         }
  71
  72         freeaddrinfo(address);
  73         return bReturn;
  74       }
  75
  76       virtual void Shutdown(void)
  77       {
  78         CLockObject lock(m_mutex);
  79         if (m_socket != INVALID_SOCKET && m_socket != SOCKET_ERROR)
  80           TcpShutdownSocket(m_socket);
  81         m_socket = INVALID_SOCKET;
  82         m_strError = "";
  83       }
  84
  85   protected:
  86     virtual socket_t TcpCreateSocket(struct addrinfo* addr, int* iError, uint64_t iTimeout)
  87     {
  88       socket_t fdSock = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
  89       if (fdSock == INVALID_SOCKET || fdSock == SOCKET_ERROR)
  90       {
  91         *iError = errno;
  92         return (socket_t)SOCKET_ERROR;
  93       }
  94
  95       if (!TcpConnectSocket(fdSock, addr, iError, iTimeout))
  96       {
  97         SocketClose(fdSock);
  98         return (socket_t)SOCKET_ERROR;
  99       }
 100
 101       TcpSetNoDelay(fdSock);
 102
 103       return fdSock;
 104     }
 105   };
 106 };