Kill a process using its PID in ruby

Question

I'm trying to kill a process using its PID after a given period of time, i.e, if the process keeps running for more than 10 minutes, I have to call a method to kill it.

I have two problems: first, i can't manage to kill the process, i'm using:

Process.kill('INT', pid)

but errors keep popping up like Bad file descriptor, or unsupported name 'SIGQUIT' when I use the QUIT signal instead of INT.

Second, how do I make the 10 minutes timer before I call the method to kill the process?

Thanks.

Answer 1

For your timing, you can use a thread:

Thread.new do
  sleep 10 * 60
  begin
    Process.kill('QUIT', pid)
  rescue Errno::ESRCH
    # process exited normally
  end
end

_, status = Process.wait2 pid
puts status.exited?

I am unsure of why QUIT is not working for you. I could not replicate your error.