Class: MultiProcess::Loop

Inherits:
Object
  • Object
show all
Defined in:
lib/multi_process/loop.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Loop

Returns a new instance of Loop.



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# File 'lib/multi_process/loop.rb', line 5

def initialize
  @selector = ::NIO::Selector.new

  Thread.new do
    loop do
      @selector.select(30.0) do |monitor|
        if monitor.io.eof?
          @selector.deregister(monitor.io)
          monitor.value.call(:eof, monitor)
        else
          monitor.value.call(:ready, monitor)
        end
      end

      # Wait very short time to allow scheduling another thread
      sleep(0.001)
    end
  end
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/multi_process/loop.rb', line 34

def instance
  @instance ||= new
end

Instance Method Details

#watch(io, &block) ⇒ Object 



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# File 'lib/multi_process/loop.rb', line 25

def watch(io, &block)
  @selector.wakeup
  @selector.register(io, :r).tap do |monitor|
    monitor.value = block
    monitor.value.call(:registered, monitor)
  end
end