Module: Freeport

Defined in:
lib/freeport.rb,
lib/freeport/version.rb

Defined Under Namespace

Classes: OutOfPorts

Constant Summary collapse

PORT_START = 
(2<<9)+1
PORT_END = 
(2<<15)-1
PORT_RANGE = 
PORT_END-PORT_START
LOCALHOST = 
'127.0.0.1'
VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.available ⇒ Object 



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# File 'lib/freeport.rb', line 24

def available
  @ports.size
end

.port ⇒ Object

Raises:



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# File 'lib/freeport.rb', line 12

def port
  @ports ||= (PORT_START..PORT_END).to_a
  2.times do |try|
    @ports.empty? and try==0 and @ports = (PORT_START..PORT_END).to_a
    until @ports.empty?
      port = @ports.sample
      @ports.delete(port)
      return port if useable port
    end
  end
  raise Freeport::OutOfPorts if try > 0
end