Class: Rackdapter::ApplicationInstance

Inherits:
Object
  • Object
show all
Defined in:
lib/rackdapter/spawner.rb

Instance Method Summary collapse

Constructor Details

#initialize(application, port) ⇒ ApplicationInstance

Returns a new instance of ApplicationInstance.



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# File 'lib/rackdapter/spawner.rb', line 103

def initialize(application, port)
  @application = application
  @port = port
  @backend = case @application.type
  when "merb"
    MerbBackend
  when "rails"
    RailsBackend
  when "proxy"
    ProxyBackend
  end
end

Instance Method Details

#ensure_running ⇒ Object 



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# File 'lib/rackdapter/spawner.rb', line 116

def ensure_running
  start
end

#restart ⇒ Object 



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# File 'lib/rackdapter/spawner.rb', line 141

def restart
  puts "Initiating restart of #{@application.name}:#{@port}"
  stop
  start
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rackdapter/spawner.rb', line 147

def running?
  return false unless @pid
  found = false
  `ps`.each_line do |line|
    if line =~ /^ *(#{@pid}) /
      found = true
      break
    end
  end
  found
end

#start ⇒ Object 



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# File 'lib/rackdapter/spawner.rb', line 120

def start
  return if running?
  @pid = fork do
    @backend.spawn(@application, @port)
  end
  puts "Starting #{@application.name}:#{@port} with pid #{@pid}"
  Process.detach(@pid)
end

#stop ⇒ Object 



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# File 'lib/rackdapter/spawner.rb', line 129

def stop
  if running?
    puts "Stopping #{@application.name}:#{@port}"
    begin
      Process.kill("TERM", @pid)
    rescue
      puts "Process #{@pid} not found"
    end
    @pid = nil
  end
end