Class: Katte::ThreadPool

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(threads_num = 4, logger = Katte.app.logger) ⇒ ThreadPool

Returns a new instance of ThreadPool.



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

def initialize(threads_num = 4, logger = Katte.app.logger)
  @queue         = Queue.new
  @threads_num   = threads_num
  @logger        = logger
end

Instance Attribute Details

#threads ⇒ Object (readonly)

Returns the value of attribute threads.



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# File 'lib/katte/thread_pool.rb', line 9

def threads
  @threads
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/katte/thread_pool.rb', line 5

def self.instance
  @instance ||= new.tap(&:run)
end

Instance Method Details

#join ⇒ Object 



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# File 'lib/katte/thread_pool.rb', line 37

def join
  @threads.each {|t| t.join}
end

#push(&procedure) ⇒ Object 



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# File 'lib/katte/thread_pool.rb', line 29

def push &procedure
  @queue.push procedure
end

#run ⇒ Object 



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# File 'lib/katte/thread_pool.rb', line 16

def run
  procedure = Proc.new {
    loop {
      begin
        @queue.pop.call
      rescue => e
        @logger.error(e)
      end
    }
  }
  @threads ||= @threads_num.times.map { Thread.start &procedure }
end

#stop ⇒ Object 



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# File 'lib/katte/thread_pool.rb', line 33

def stop
  @threads.each &:kill
end