Method: Vagrant::Util::Busy.register

Defined in:
lib/vagrant/util/busy.rb

.register(sig_callback) ⇒ Object

Registers a SIGINT handler. This typically is called from busy. Callbacks are only registered once, so calling this multiple times with the same callback has no consequence.



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# File 'lib/vagrant/util/busy.rb', line 27

def register(sig_callback)
  @@mutex.synchronize do
    registered << sig_callback
    registered.uniq!

    # Register the handler if this is our first callback.
    Signal.trap("INT") { fire_callbacks } if registered.length == 1
  end
end