That alarm documentation gives a clear example, but it isn't working. Shouldn't the below code timeout every second? 
  eval {
    $timeout = 1;
    local $SIG{ALRM} = sub { die "alarm\n" };
    alarm $timeout;
    $ret = sysread($sock, $buf, 100);
    alarm 0;
  };

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In reply to Re^2: How to make sysread timeout by redss
in thread How to make sysread timeout by redss

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