Method: Zold::ThreadPool#kill

Defined in:
lib/zold/thread_pool.rb

#kill ⇒ Object

Kill them all immediately and close the pool



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# File 'lib/zold/thread_pool.rb', line 93

def kill
  if @threads.empty?
    @log.debug("Thread pool \"#{@title}\" terminated with no threads")
    return
  end
  @log.debug("Stopping \"#{@title}\" thread pool with #{@threads.count} threads: \
#{@threads.map { |t| "#{t.name}/#{t.status}" }.join(', ')}...")
  start = Time.new
  begin
    @threads.each do |t|
      t.join(0.1)
    end
  ensure
    @threads.each do |t|
      (t.thread_variable_get(:kids) || []).each(&:kill)
      t.kill
      sleep(0.001) while t.alive? # I believe it's a bug in Ruby, this line fixes it
      Thread.current.thread_variable_set(
        :kids,
        (Thread.current.thread_variable_get(:kids) || []) - [t]
      )
    end
    @log.debug("Thread pool \"#{@title}\" terminated all threads in #{Age.new(start)}, \
it was alive for #{Age.new(@start)}: #{@threads.map { |t| "#{t.name}/#{t.status}" }.join(', ')}")
    @threads.clear
  end
end