Class: Async::WorkerPool::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/async/worker_pool.rb

Overview

A background worker thread.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Worker

Create a new worker.



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# File 'lib/async/worker_pool.rb', line 108

def initialize
	@work = ::Thread::Queue.new
	@thread = ::Thread.new(&method(:run))
end

Instance Method Details

#call(work) ⇒ Object

Call the work and notify the scheduler when it is done.



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# File 'lib/async/worker_pool.rb', line 129

def call(work)
	promise = Promise.new(work)
	
	@work.push(promise)
	
	begin
		return promise.wait
	ensure
		promise.cancel
	end
end

#close ⇒ Object

Close the worker thread.



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# File 'lib/async/worker_pool.rb', line 121

def close
	if thread = @thread
		@thread = nil
		thread.kill
	end
end

#run ⇒ Object

Execute work until the queue is closed.



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# File 'lib/async/worker_pool.rb', line 114

def run
	while work = @work.pop
		work.call
	end
end