examples/clntsrv/client.cc

Client/Server example using C++ infrastructure – Client implementation.

Client/Server example using C++ infrastructure – Client implementation.

/*
 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
 *               Alexander Warg <warg@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * This file is part of TUD:OS and distributed under the terms of the
 * GNU General Public License 2.
 * Please see the COPYING-GPL-2 file for details.
 */
#include <l4/sys/err.h>
#include <l4/sys/types.h>
#include <l4/re/env>
#include <l4/re/util/cap_alloc>
 
#include <stdio.h>
#include "shared.h"
 
int
main()
{
  L4::Cap<Calc> server = L4Re::Env::env()->get_cap<Calc>("calc_server");
  if (!server.is_valid())
    {
      printf("Could not get server capability!\n");
      return 1;
    }
 
  l4_uint32_t val1 = 8;
  l4_uint32_t val2 = 5;
 
  printf("Asking for %d - %d\n", val1, val2);
  if (server->sub(val1, val2, &val1))
    {
      printf("Error talking to server\n");
      return 1;
    }
  printf("Result of subtract call: %d\n", val1);
 
  printf("Asking for -%d\n", val1);
  if (server->neg(val1, &val1))
    {
      printf("Error talking to server\n");
      return 1;
    }
  printf("Result of negate call: %d\n", val1);
 
  return 0;
}