Here's the thing...

I've got a socket, created with IO::Socket::INET, that I've registered with an IO::select object.

I'm writing to the socket using the following code: 

if (my @s = $select->can_write()) {
  for (@s) {
    if (print $_ $message) {
       print "message sent";
    } else {
       print STDERR "Could not write to socket: $!\n";
    }
  }
}

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I only have one socket registered with the select, so it only writes to the one socket. This code works fine, except...

The server I'm talking to has the annoying habit of terminating the connection with no warning. When that happens, the $select->can_write() is not blocking, but immediately returns the one registered socket (which was closed from the other end), and the print fails.

Is can_write() supposed to return a handle that I clearly cannot write to? If so, what suggestions can I get for bulletproofing my code?

In reply to Stupid IO::select question by BlaisePascal

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