Class: RMXFirebaseBatch

Inherits:
Object
  • Object
show all
Includes:
RMXCommonMethods
Defined in:
lib/motion/RMXFirebaseBatch.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RMXFirebaseBatch

Returns a new instance of RMXFirebaseBatch.



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# File 'lib/motion/RMXFirebaseBatch.rb', line 15

def initialize
  @models = []
  @ready_models = []
  @complete_blocks = {}
end

Class Method Details

.new(*models) ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 5

def self.new(*models)
  _models = models.dup
  _models = _models.flatten.compact
  x = super()
  RMXFirebase::QUEUE.barrier_async do
    x.setup_models(_models)
  end
  x
end

Instance Method Details

#cancel! ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 70

def cancel!
  RMXFirebase::QUEUE.barrier_async do
    models_outstanding = @complete_blocks.keys.dup
    while models_outstanding.size > 0
      model = models_outstanding.shift
      if blk = @complete_blocks[model]
        @complete_blocks.delete(model)
        model.cancel_block(&blk)
      end
    end
  end
end

#cancel_block(&block) ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 98

def cancel_block(&block)
  RMX(self).off(:ready, &block)
end

#once(queue = nil, &block) ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 87

def once(queue=nil, &block)
  RMXFirebase::QUEUE.barrier_async do
    if ready?
      RMXFirebase.block_on_queue(queue, @ready_models.dup, &block)
    else
      RMX(self).once(:ready, :strong => true, :queue => queue, &block)
    end
  end
  self
end

#ready! ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 61

def ready!
  RMXFirebase::QUEUE.barrier_async do
    @ready = true
    # p "models", models.dup
    # p "ready_models", ready_models.dup
    RMX(self).trigger(:ready, @ready_models.dup)
  end
end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/motion/RMXFirebaseBatch.rb', line 83

def ready?
  !!@ready
end

#setup_models(the_models) ⇒ Object 



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# File 'lib/motion/RMXFirebaseBatch.rb', line 21

def setup_models(the_models)
  RMX(self).require_queue!(RMXFirebase::QUEUE, __FILE__, __LINE__) if RMX::DEBUG_QUEUES
  @ready = false
  @models = the_models.dup
  @ready_count = 0
  @pending_count = @models.size
  if @models.any?
    _models = @models.dup
    _pairs = []
    i = 0
    while _models.size > 0
      ii = i # strange: proc doesnt seem to close over i correctly
      model = _models.shift
      blk = proc do
        RMX(self).require_queue!(RMXFirebase::QUEUE, __FILE__, __LINE__) if RMX::DEBUG_QUEUES
        # p "COMPLETE!", ii, model
        @complete_blocks.delete(model)
        @ready_models[ii] = model
        @ready_count += 1
        @pending_count -= 1
        if @pending_count == 0
          ready!
        end
      end
      @complete_blocks[model] = blk
      _pairs << [ model, blk ]
      i += 1
    end
    RMXFirebase::QUEUE.barrier_async do
      while pair = _pairs.shift
        pair[0].once(RMXFirebase::QUEUE, &pair[1])
      end
    end
  else
    RMXFirebase::QUEUE.barrier_async do
      ready!
    end
  end
end