Class: Temporal::ThreadPool

Inherits:
Object
  • Object
show all
Defined in:
lib/temporal/thread_pool.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(size) ⇒ ThreadPool

Returns a new instance of ThreadPool.



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# File 'lib/temporal/thread_pool.rb', line 12

def initialize(size)
  @size = size
  @queue = Queue.new
  @mutex = Mutex.new
  @availability = ConditionVariable.new
  @available_threads = size
  @pool = Array.new(size) do |i|
    Thread.new { poll }
  end
end

Instance Attribute Details

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/temporal/thread_pool.rb', line 10

def size
  @size
end

Instance Method Details

#schedule(&block) ⇒ Object 



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# File 'lib/temporal/thread_pool.rb', line 31

def schedule(&block)
  @mutex.synchronize do
    @available_threads -= 1
    @queue << block
  end
end

#shutdown ⇒ Object 



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# File 'lib/temporal/thread_pool.rb', line 38

def shutdown
  size.times do
    schedule { throw EXIT_SYMBOL }
  end

  @pool.each(&:join)
end

#wait_for_available_threads ⇒ Object 



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# File 'lib/temporal/thread_pool.rb', line 23

def wait_for_available_threads
  @mutex.synchronize do
    while @available_threads <= 0
      @availability.wait(@mutex)
    end
  end
end