ACE Tutorial 009
Sending and receiving datagrams again


As you can see in broadcast_client.cpp, there isn't enough difference to even comment on!  Look back to the Tutorial 8 version of this file.  The only difference is the addition of the timeout variable passed to recv().


#include "ace/SOCK_Dgram_Bcast.h"
#include "ace/INET_Addr.h"

static const u_short PORT = ACE_DEFAULT_SERVER_PORT;

int main (int argc, char *argv[])
{
  ACE_INET_Addr local ((u_short) 0);
  ACE_INET_Addr remote (PORT, INADDR_BROADCAST);
  ACE_SOCK_Dgram_Bcast dgram;

  if (dgram.open (local) == -1)
  {
    ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "open"), -1);
  }

  char buf[512];

  sprintf (buf, argc > 1 ? argv[1] : "Hello World!");

  if (dgram.send (buf, strlen (buf) + 1, remote) == -1)
  {
    ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "send"), -1);
  }

  ACE_Time_Value timeout (2, 0);
  if (dgram.recv (buf, sizeof (buf), remote, 0, &timeout) == -1)
  {
    ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "recv"), -1);
  }

  ACE_DEBUG ((LM_DEBUG, "(%P|%t) The server at (%s) said (%s)\n",
              remote.get_host_name (), buf));

  return (0);
}


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