developer.intra2net.com Git - libt2n/blob - src/socket_client.hxx

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Gerd v. Egidy                                   *
   3  *   gve@intra2net.com                                                     *
   4  *                                                                         *
   5  *   This library is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU Lesser General Public License version   *
   7  *   2.1 as published by the Free Software Foundation.                     *
   8  *                                                                         *
   9  *   This library is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU Lesser General Public License for more details.                   *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU Lesser General Public      *
  15  *   License along with this program; if not, write to the                 *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19 #ifndef __LIBT2N_SOCKET_CLIENT
  20 #define __LIBT2N_SOCKET_CLIENT
  21
  22 #include "client.hxx"
  23 #include "socket_handler.hxx"
  24
  25 struct sockaddr;
  26
  27 namespace libt2n
  28 {
  29 /** @brief a connection from client to server using sockets.
  30
  31     Use this class to connect from a client to a server.
  32  */
  33 class socket_client_connection : public client_connection, public socket_handler
  34 {
  35     public:
  36         static const int max_retries_default=3;
  37         static const long long connect_timeout_usec_default=30000000;
  38
  39     private:
  40         void real_write(const std::string& data)
  41             { socket_write(data); }
  42
  43         void tcp_connect(int max_retries);
  44         void unix_connect(int max_retries);
  45         void connect_with_timeout(struct sockaddr *sock_addr,unsigned int sockaddr_size);
  46
  47         int max_retries;
  48         long long connect_timeout_usec;
  49
  50         std::string path;
  51         std::string server;
  52         int port;
  53
  54         std::ostream* get_logstream(log_level_values level)
  55             { return client_connection::get_logstream(level); }
  56
  57     public:
  58         socket_client_connection(int _port, const std::string& _server="127.0.0.1",
  59             long long _connect_timeout_usec=connect_timeout_usec_default,
  60             int _max_retries=max_retries_default);
  61         socket_client_connection(const std::string& _path,
  62             long long _connect_timeout_usec=connect_timeout_usec_default,
  63             int _max_retries=max_retries_default);
  64
  65         /** @brief read data from the socket and copy it into buffer
  66             @param usec_timeout wait until new data is found, max timeout usecs.
  67                   -1: wait endless
  68                    0: return instantly
  69             @param usec_timeout_remaining if non-NULL the function will write the
  70                   not used time to the given target
  71             @retval true if new data was found (does not mean that the received data
  72                     is a complete packet though)
  73         */
  74         bool fill_buffer(long long usec_timeout=-1, long long *usec_timeout_remaining=NULL)
  75             { return socket_handler::fill_buffer(buffer,usec_timeout,usec_timeout_remaining); }
  76
  77         void close();
  78 };
  79
  80 }
  81
  82 #endif