[LIP] Asynchronous IO on Linux

I am facing some problem while porting a program on 
Linux. Just wondering if you can help..

I am having asynchronous IO b/w 2 processes through
socket. To implement AIO, I am using SIGIO. Following
approach works fine on solaris but not on linux. Is 
there something wrong? Is there any change for SIGIO
on Linux ?


Client code (simplistic view):

# -- Start ------------------------------------------
setSigHandler();
while (1)
{
  $last = DoProcessing();
  last if ($last);
}

sub setSigHandler {
  my ($socket) = $sock->{'SOCKET'};
  fcntl($socket, F_SETOWN(), $$);
  fcntl($socket, F_SETFL(), 4096);
  $SIG{IO}   = \&sigIO;
  $SIG{POLL} = \&sigIO;
}

sub sigIO {

  my ($socket) = $sock->{'SOCKET'};
  my ($rin, $win, $ein, $rout, $numReady );
  $rin = $win = $ein = '';
  vec ($rin, fileno($socket), 1) = 1;
  $numReady = select ( $rout=$rin, undef, undef, 0 );
  error () unless ($numReady);
  $sock->GetSockReply();  # Read data from socket
  $SIG{IO} = \&sigIO;
  return 1;
} 

thanks,
Gaurav

=====
Cheers,
Gaurav Varshney


		
__________________________________
Do you Yahoo!?
Yahoo! Mail - You care about security. So do we.
http://promotions.yahoo.com/new_mail


-------------------------------------------------------
This SF.Net email is sponsored by BEA Weblogic Workshop
FREE Java Enterprise J2EE developer tools!
Get your free copy of BEA WebLogic Workshop 8.1 today.
http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click