LCOV - code coverage report
Current view: top level - snapwebsites - udp_client_server.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 6 0.0 %
Date: 2019-12-15 17:13:15 Functions: 0 7 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : // UDP Client Server -- send/receive UDP packets
       2             : // Copyright (c) 2013-2019  Made to Order Software Corp.  All Rights Reserved
       3             : //
       4             : // This program is free software; you can redistribute it and/or modify
       5             : // it under the terms of the GNU General Public License as published by
       6             : // the Free Software Foundation; either version 2 of the License, or
       7             : // (at your option) any later version.
       8             : //
       9             : // This program 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 General Public License for more details.
      13             : //
      14             : // You should have received a copy of the GNU General Public License
      15             : // along with this program; if not, write to the Free Software
      16             : // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
      17             : #pragma once
      18             : 
      19             : // snapdev lib
      20             : //
      21             : #include <snapdev/raii_generic_deleter.h>
      22             : 
      23             : // C++ lib
      24             : //
      25             : #include <stdexcept>
      26             : 
      27             : // C lib
      28             : //
      29             : #include <netdb.h>
      30             : #include <sys/types.h>
      31             : #include <sys/socket.h>
      32             : #include <unistd.h>
      33             : 
      34             : 
      35             : 
      36             : namespace udp_client_server
      37             : {
      38             : 
      39           0 : class udp_client_server_runtime_error : public std::runtime_error
      40             : {
      41             : public:
      42           0 :     udp_client_server_runtime_error(const std::string & errmsg) : std::runtime_error(errmsg) {}
      43             : };
      44             : 
      45           0 : class udp_client_server_parameter_error : public std::logic_error
      46             : {
      47             : public:
      48           0 :     udp_client_server_parameter_error(const std::string & errmsg) : std::logic_error(errmsg) {}
      49             : };
      50             : 
      51             : 
      52           0 : class udp_base
      53             : {
      54             : public:
      55           0 :     typedef std::unique_ptr<struct addrinfo, snap::raii_pointer_deleter<struct addrinfo, decltype(&::freeaddrinfo), &::freeaddrinfo>> raii_addrinfo_t;
      56             : 
      57             :     int                 get_socket() const;
      58             :     int                 get_mtu_size() const;
      59             :     int                 get_mss_size() const;
      60             :     int                 get_port() const;
      61             :     std::string         get_addr() const;
      62             : 
      63             : protected:
      64             :                         udp_base(std::string const & addr, int port, int family);
      65             : 
      66             :     // TODO: convert the port + addr into a libaddr addr object?
      67             :     //       (we use the f_addrinfo as is in the sendto() and bind() calls, though)
      68             :     //
      69             :     snap::raii_fd_t     f_socket = snap::raii_fd_t();
      70             :     int                 f_port = -1;
      71             :     mutable int         f_mtu_size = 0;
      72             :     std::string         f_addr = std::string();
      73             :     raii_addrinfo_t     f_addrinfo = raii_addrinfo_t();
      74             : };
      75             : 
      76             : 
      77             : class udp_client
      78             :     : public udp_base
      79             : {
      80             : public:
      81             :     typedef std::shared_ptr<udp_client>     pointer_t;
      82             : 
      83             :                         udp_client(std::string const & addr, int port, int family = AF_UNSPEC);
      84             :                         ~udp_client();
      85             : 
      86             :     int                 send(char const * msg, size_t size);
      87             : 
      88             : private:
      89             : };
      90             : 
      91             : 
      92             : class udp_server
      93             :     : public udp_base
      94             : {
      95             : public:
      96             :     typedef std::shared_ptr<udp_server>     pointer_t;
      97             : 
      98             :                         udp_server(std::string const & addr, int port, int family = AF_UNSPEC, std::string const * multicast_addr = nullptr);
      99             :                         ~udp_server();
     100             : 
     101             :     int                 recv(char * msg, size_t max_size);
     102             :     int                 timed_recv( char * msg, size_t const max_size, int const max_wait_ms );
     103             :     std::string         timed_recv( int const bufsize, int const max_wait_ms );
     104             : 
     105             : private:
     106             : };
     107             : 
     108             : } // namespace udp_client_server
     109             : // vim: ts=4 sw=4 et

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