Greetings Monks,
 
 Im using IO::Socket::INET to communicate with a messaging server. The code somewhat looks like this: 
  $socket = IO::Socket::INET->new(
                                     PeerAddr=> $self->host,
                                     PeerPort=> $self->port,
                                     Proto=> "tcp",
                                     Blocking => 1 );

  ....
  $socket->syswrite($string, length($string));

[download]

 
 Im implementing a failover mechanism, where if the syswrite fails, I would then connect to another set of host and retry the syswrite.

 
 If the server shutsdown or is not accesssible, the syswrite does not report any errors. I have read the perldoc's and searched this venerable monastry, but did not find any clues. Any help is appreciated. Thanks.

 
Update: According to the docs, syswrite returns undef if there was an error. I modified the syswrite to look like this: 
  if(!($socket->syswrite($string, length($string)))){
    print "Error writing\n";
  }

[download]
just before the syswrite, I shutdown the server to which the socket was connected and attempted to write to the socket, it did not report any error

In reply to syswrite and closed sockets by InfiniteLoop

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