Module: Agent::Queues

Defined in:
lib/agent/queues.rb

Constant Summary collapse

LOCK = 
Mutex.new

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.queues ⇒ Object

Returns the value of attribute queues.



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# File 'lib/agent/queues.rb', line 8

def queues
  @queues
end

Class Method Details

.[](name) ⇒ Object 



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# File 'lib/agent/queues.rb', line 42

def self.[](name)
  LOCK.synchronize{ queues[name] }
end

.clear ⇒ Object 



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# File 'lib/agent/queues.rb', line 46

def self.clear
  LOCK.synchronize{ queues.clear }
end

.delete(name) ⇒ Object 



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# File 'lib/agent/queues.rb', line 38

def self.delete(name)
  LOCK.synchronize{ queues.delete(name) }
end

.register(name, type, max) ⇒ Object

Raises:



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

def self.register(name, type, max)
  raise Errors::Untyped unless type
  raise Errors::InvalidType unless type.is_a?(Module)

  LOCK.synchronize do
    queue = queues[name]

    if queue
      if queue.type == type
        return queue
      else
        raise Errors::InvalidType, "Type #{type.name} is different than the queue's type (#{queue.type.name})"
      end
    end

    raise Errors::InvalidQueueSize, "queue size must be at least 0" unless max >= 0

    if max > 0
      queues[name] = Queue::Buffered.new(type, max)
    else
      queues[name] = Queue::Unbuffered.new(type)
    end
  end
end