Class: PostOffice

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/pregel.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PostOffice

Returns a new instance of PostOffice.



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# File 'lib/pregel.rb', line 10

def initialize
  @mailboxes = Hash.new
  @mutex = Mutex.new
end

Instance Method Details

#deliver(to, msg) ⇒ Object 



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# File 'lib/pregel.rb', line 15

def deliver(to, msg)
  @mutex.synchronize do
    if @mailboxes[to]
      @mailboxes[to].push msg
    else
      @mailboxes[to] = [msg]
    end
  end
end

#read(box) ⇒ Object 



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# File 'lib/pregel.rb', line 25

def read(box)
  @mutex.synchronize do
    @mailboxes.delete(box) || []
  end
end