text: /******************************************************************************/
  /*                                                                            */
  /* Copyright (c) 2010, 2014 Sylwester Wysocki <sw143@wp.pl>                   */
  /*                                                                            */
  /* Permission is hereby granted, free of charge, to any person obtaining a    */
  /* copy of this software and associated documentation files (the "Software"), */
  /* to deal in the Software without restriction, including without limitation  */
  /* the rights to use, copy, modify, merge, publish, distribute, sublicense,   */
  /* and/or sell copies of the Software, and to permit persons to whom the      */
  /* Software is furnished to do so, subject to the following conditions:       */
  /*                                                                            */
  /* The above copyright notice and this permission notice shall be included in */
  /* all copies or substantial portions of the Software.                        */
  /*                                                                            */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
  /* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   */
  /* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    */
  /* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
  /* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    */
  /* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        */
  /* DEALINGS IN THE SOFTWARE.                                                  */
  /*                                                                            */
  /******************************************************************************/
  
  #ifndef Tegenaria_Core_NetTcpConnection_H
  #define Tegenaria_Core_NetTcpConnection_H
  
  #include "NetConnection.h"
  
  //
  // Windows.
  //
  
  #ifdef WIN32
  # include <windows.h>
  
  # ifndef SIO_KEEPALIVE_VALS
  # define SIO_KEEPALIVE_VALS  0x98000004
  # endif
  
  struct tcp_keepalive
  {
    u_long onoff;
    u_long keepalivetime;
    u_long keepaliveinterval;
  };
  
  //
  // Linux.
  //
  
  #else
  # include <unistd.h>
  #endif
  
  namespace Tegenaria
  {
    //
    // Class to wrap TCP/IP socket.
    //
  
    class NetTcpConnection : public NetConnection
    {
      private:
  
      struct sockaddr_in addr_;
  
      #ifdef WIN32
      HANDLE cancelEvent_;
      OVERLAPPED ov_;
      #else
      int cancelPipe_[2];
      #endif
  
      virtual ~NetTcpConnection();
  
      public:
  
      NetTcpConnection(const void *ctx, int socket,
                           NetHandleConnProto handler,
                               struct sockaddr_in addr,
                                   ThreadHandle_t *thread = NULL);
  
      const struct sockaddr_in getAddr();
  
      virtual int write(const void *buf, int count, int timeout = -1);
      virtual int read(void *buf, int count, int timeout = -1);
      virtual void cancel();
  
      virtual int shutdown(int how = SD_BOTH);
  
      virtual void setNoDelay(int value);
      virtual void setKeepAlive(int interval);
  
      virtual int disableInherit();
    };
  
  } /* namespace Tegenaria */
  
  #endif /* Tegenaria_Core_NetTcpConnection */
  