Hello, I am trying to use backticks to execute and external method call. However, I would like the function to timeout. I have achieved the timeout with the use of alarm. But, I want to be able to kill the process as it is memory intensive. Also, one key is the processes must be run in a sequential ordering so threading messes up the order. I have this: 
my $pid;
  local $SIG{ALRM} = sub {
        kill 9, $pid;
        die "Timeout\n";
  };
  $pid = fork;
      eval {
        alarm $timeout;
        $result = `$solver $file`;
        waitpid($pid, 0);
      };
      alarm 0;

[download]
But by monitoring through htop I am seeing multiple runs of the solver at one time, when there should only be one. Also, looking at the output the ordering is incorrect. Thanks! Nicole

In reply to Timeout and kill by nelson64

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