Class: Agent::WaitGroup

Inherits:
Object
  • Object
show all
Defined in:
lib/agent/wait_group.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ WaitGroup

Returns a new instance of WaitGroup.



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# File 'lib/agent/wait_group.rb', line 7

def initialize
  @count = 0
  @mutex = Mutex.new
  @cvar  = ConditionVariable.new
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/agent/wait_group.rb', line 5

def count
  @count
end

Instance Method Details

#add(delta) ⇒ Object 



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# File 'lib/agent/wait_group.rb', line 21

def add(delta)
  @mutex.synchronize do
    modify_count(delta)
  end
end

#done ⇒ Object 



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# File 'lib/agent/wait_group.rb', line 27

def done
  @mutex.synchronize do
    modify_count(-1)
  end
end

#wait ⇒ Object 



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# File 'lib/agent/wait_group.rb', line 13

def wait
  @mutex.synchronize do
    while @count > 0
      @cvar.wait(@mutex)
    end
  end
end