Class: Tobox::ThreadedPool

Inherits:
Pool
  • Object
show all
Defined in:
lib/tobox/pool/threaded_pool.rb

Instance Method Summary collapse

Methods inherited from Pool

#do_work

Constructor Details

#initialize(_configuration) ⇒ ThreadedPool

Returns a new instance of ThreadedPool.



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# File 'lib/tobox/pool/threaded_pool.rb', line 7

def initialize(_configuration)
  @parent_thread = Thread.main
  @threads = []
  @threads.extend(MonitorMixin)
  super
end

Instance Method Details

#start ⇒ Object 



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# File 'lib/tobox/pool/threaded_pool.rb', line 14

def start
  @workers.each do |wk|
    th = start_thread_worker(wk)
    @threads.synchronize do
      @threads << th
    end
  end
end

#stop ⇒ Object 



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# File 'lib/tobox/pool/threaded_pool.rb', line 23

def stop
  shutdown_timeout = @configuration[:shutdown_timeout]
  grace_shutdown_timeout = @configuration[:grace_shutdown_timeout]

  super
  Thread.pass # let workers finish

  # soft exit
  join = lambda do |timeout|
    start = Process.clock_gettime(::Process::CLOCK_MONOTONIC)

    loop do
      terminating_th = @threads.synchronize { @threads.first }

      return unless terminating_th

      elapsed = Process.clock_gettime(Process::CLOCK_MONOTONIC) - start

      break if elapsed > timeout

      terminating_th.join(timeout - elapsed)
    end
  end

  join.call(shutdown_timeout)

  # hard exit
  @threads.synchronize { @threads.each { |th| th.raise(KillError) } }
  join.call(grace_shutdown_timeout)
  @threads.synchronize { @threads.each(&:kill) }
  join.call(1)
end