dgaramond2 has asked for the wisdom of the Perl Monks concerning the following question: 

$Server = IO::Socket::UNIX->new(Listen=>1, ...) or die;
while(1) {
  $sock = $Server->accept();
  next unless $sock;
  ...
}

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Why does sometimes accept() return undef (and thus I need the 'next unless $sock' line)? Shouldn't accept() block and return a valid socket each time?

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Re: Empty after accept?
by Fletch (Bishop) on Mar 13, 2006 at 13:08 UTC

    Not if there were an error (or I believe if you've set the socket to be non-blocking; but still in that case I think $! would still be set to EWOULDBLOCK). Check $! and see what it says.

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