Cancel event-scripts

[admin]

Saving current PID might still lead to race conditions if two scripts execute in really short time period. The more elegant way is to use a resident script with two copas threads - one for bus monitoring and another for sequence.

Code:

if not client then
  require('copas')

  function eventhandler(...)
    log('event', ...)
  end

  client = require('localbus').new()
  client:sethandler('groupwrite', eventhandler)
  client:sethandler('groupresponse', eventhandler)

  copas.addserver(client.sock, function()
    client.sock = copas.wrap(client.sock)
    while true do
      client:step()
    end
  end, 1)

  copas.addthread(function()
    while true do
      copas.sleep(0.5)
    end
  end)
end

copas.step()