Hi, I'm trying to write a simple TCP client that tries to keep the TCP connection as long as possible, but reconnects if the connection is broken (say during a server restart). I tried to use the eval/$@ pair to catch the error as in the following, somehow, when the server restarts, it gives me a broken pipe: 
use strict;
use IO::Socket;

my $client;

foreach(1..10){
   print call_server(),"\n";
   sleep 10; # allow sometime to test server restart
}

sub call_server{
    my $answer;
    eval{
       print $client "some_command\n";
       $answer = <$client>;
   };
   
    if($@){
       $client = new IO::Socket::INET(PeerAddr => 'localhost',
                      PeerPort => 16666,
                      Proto => 'tcp',
                      Type => SOCK_STREAM) or die "Couldn't connect to
+ server: $!";

        # try again
        print $client "some_command\n";
       $answer = <$client>;
     }

     return $answer;
}

[download]
Also how do I handle the case when the server is really down, i.e., the "die" part, I'd like to return an "undef" rather than a "die". Thanks.

Updated: syntex errors.

In reply to Handling server socket error and reconnect by johnnywang

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