Class: Quickdraw::Queue

Inherits:

Object

• Object
• Quickdraw::Queue

Defined in:

lib/quickdraw/queue.rb

Instance Method Summary

• #<<(item) ⇒ Object
• #drain ⇒ Object
• #empty? ⇒ Boolean
• #initialize ⇒ Queue constructor

  A new instance of Queue.

• #pop ⇒ Object
• #shift ⇒ Object
• #size ⇒ Object

Constructor Details

#initialize ⇒ Queue

Returns a new instance of Queue.

# File 'lib/quickdraw/queue.rb', line 4

def initialize
	@array = []
	@mutex = Mutex.new
end

Instance Method Details

#<<(item) ⇒ Object

# File 'lib/quickdraw/queue.rb', line 9

def <<(item)
	@mutex.synchronize { @array << item }
end

#drain ⇒ Object

# File 'lib/quickdraw/queue.rb', line 13

def drain
	yield(shift) until empty?
end

#empty? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/quickdraw/queue.rb', line 25

def empty?
	@array.empty?
end

#pop ⇒ Object

# File 'lib/quickdraw/queue.rb', line 17

def pop
	@mutex.synchronize { @array.pop }
end

#shift ⇒ Object

# File 'lib/quickdraw/queue.rb', line 21

def shift
	@mutex.synchronize { @array.shift }
end

#size ⇒ Object

# File 'lib/quickdraw/queue.rb', line 29

def size
	@array.size
end