Class: Backport::Machine

Inherits:
Object
  • Object
show all
Defined in:
lib/backport/machine.rb

Overview

The Backport server controller.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Machine

Returns a new instance of Machine.



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# File 'lib/backport/machine.rb', line 5

def initialize
  @stopped = true
  @mutex = Mutex.new
end

Instance Method Details

#prepare(server) ⇒ void

This method returns an undefined value.

Add a server to the machine. The server will be started when the machine starts. If the machine is already running, the server will be started immediately.

Parameters:



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# File 'lib/backport/machine.rb', line 45

def prepare server
  server.add_observer self
  servers.push server
  server.start unless stopped?
end

#run {|| ... } ⇒ void

This method returns an undefined value.

Run the machine. If a block is provided, it gets executed before the maching starts its main loop. The main loop blocks program execution until the machine is stopped.

Yield Parameters:

  • (self) 


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# File 'lib/backport/machine.rb', line 16

def run
  return unless stopped?
  servers.clear
  @stopped = false
  yield self if block_given?
  run_server_thread
end

#servers ⇒ Array<Server::Base>

Returns:



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# File 'lib/backport/machine.rb', line 52

def servers
  @servers ||= []
end

#stop ⇒ void

This method returns an undefined value.

Stop the machine.



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# File 'lib/backport/machine.rb', line 27

def stop
  servers.map(&:stop)
  servers.clear
  @stopped = true
end

#stopped? ⇒ Boolean

True if the machine is stopped.

Returns:

  • (Boolean) 


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# File 'lib/backport/machine.rb', line 35

def stopped?
  @stopped ||= false
end

#update(server) ⇒ void

This method returns an undefined value.

Parameters:



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# File 'lib/backport/machine.rb', line 58

def update server
  if server.stopped?
    servers.delete server
    stop if servers.empty?
  else
    mutex.synchronize { server.tick }
  end
end