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// $Id$

#include "ace/SPIPE_Addr.h"
#include "ace/SPIPE_Acceptor.h"

ACE_RCSID(SPIPE_SAP, server, "$Id$")

#if defined (ACE_HAS_STREAM_PIPES)

#include "shared.h"

// Maximum per-process open I/O descriptors.
const int MAX_HANDLES = 200;
const int PERMS = 0666;

int
main (int argc, char *argv[])
{
  ACE_SPIPE_Acceptor peer_acceptor;
  ACE_SPIPE_Stream new_stream;
  struct pollfd poll_array[MAX_HANDLES];
  ACE_HANDLE handle;

  for (handle = 0; handle < MAX_HANDLES; handle++) 
    {
      poll_array[handle].fd = -1;
      poll_array[handle].events = POLLIN;
    }

  if (argc > 1)
    rendezvous = argv[1];

  ACE_OS::fdetach (rendezvous);
  ACE_SPIPE_Addr addr (rendezvous);

  ACE_HANDLE s_handle = peer_acceptor.open (addr);

  if (s_handle == -1)
    ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "peer_acceptor.open"), -1);

  poll_array[0].fd = s_handle;

  for (int width = 1;;)
    {
      // Block waiting for client I/O events (handle interrupts).
      while (ACE_OS::poll (poll_array, width) == -1 && errno == EINTR)
        continue;

      // Handle pending logging messages first (s_handle + 1 is
      // guaranteed to be lowest client descriptor).

      for (handle = s_handle + 1; handle < width; handle++)
	if (ACE_BIT_ENABLED (poll_array[handle].revents, POLLIN)
	    || ACE_BIT_ENABLED (poll_array[handle].revents, POLLHUP))
	  {
	    char buf[BUFSIZ];
	    ssize_t n = ACE_OS::read (handle, buf, sizeof buf);

	    // recv will not block in this case!
	    if (n == -1)
	      ACE_DEBUG ((LM_DEBUG, "%p\n", "read failed"));
	    else if (n == 0)
	      {
		// Handle client connection shutdown.
		if (ACE_OS::close (poll_array[handle].fd) == -1)
		  ACE_DEBUG ((LM_DEBUG, "%p\n", "close"));
		poll_array[handle].fd = -1;

		if (handle + 1 == width)
		  {
		    while (poll_array[handle].fd == -1)
		      handle--;
		    width = handle + 1;
		  }
	      }
	    else
	      ACE_DEBUG ((LM_DEBUG, "%*s\n", n, buf));
	  } 

      if (ACE_BIT_ENABLED (poll_array[0].revents, POLLIN))
	{
	  if (peer_acceptor.accept (new_stream) == -1)
	    ACE_DEBUG ((LM_DEBUG, "%p\n", "accept failed"));
  
	  ACE_SPIPE_Addr client;
	  ACE_HANDLE n_handle = new_stream.get_handle ();

	  if (new_stream.get_remote_addr (client) == -1)
	    ACE_DEBUG ((LM_DEBUG, "%p\n", 
			"get_remote_addr failed"));

	  ACE_DEBUG ((LM_DEBUG, 
		      "n_handle = %d, uid = %d, gid = %d\n", 
		      n_handle, 
		      client.user_id (), 
		      client.group_id ()));

	  int arg = RMSGN | RPROTDAT;

	  if (ACE_OS::ioctl (n_handle, 
			     I_SRDOPT, (void *) arg) == -1)
	    ACE_DEBUG ((LM_DEBUG, "%p\n", "ioctl failed"));

	  poll_array[n_handle].fd = n_handle;

	  if (n_handle >= width)
	    width = n_handle + 1;
	}
    }

  return 0;
}
#else
#include <stdio.h>
int main (int, char *[])
{
  ACE_OS::fprintf (stderr, "This feature is not supported\n");
  return 0;
}
#endif /* ACE_HAS_STREAM_PIPES */