Class: Zold::Farm

Inherits:
Object
  • Object
show all
Defined in:
lib/zold/node/farm.rb

Overview

Farm

Defined Under Namespace

Classes: Empty

Instance Method Summary collapse

Constructor Details

#initialize(invoice, cache = File.join(Dir.pwd, 'farm'), log: Log::Quiet.new, farmer: Farmers::Plain.new) ⇒ Farm

Returns a new instance of Farm.



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# File 'lib/zold/node/farm.rb', line 47

def initialize(invoice, cache = File.join(Dir.pwd, 'farm'), log: Log::Quiet.new,
  farmer: Farmers::Plain.new)
  @log = log
  @cache = cache
  @invoice = invoice
  @pipeline = Queue.new
  @farmer = farmer
  @threads = []
end

Instance Method Details

#best ⇒ Object 



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# File 'lib/zold/node/farm.rb', line 57

def best
  load
end

#start(host, port, strength: 8, threads: 8) ⇒ Object 



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# File 'lib/zold/node/farm.rb', line 80

def start(host, port, strength: 8, threads: 8)
  @log.info('Zero-threads farm won\'t score anything!') if threads.zero?
  cleanup(host, port, strength, threads)
  @log.info("#{@pipeline.size} scores pre-loaded, the best is: #{best[0]}")
  @alive = true
  @threads = (1..threads).map do |t|
    Thread.new do
      Thread.current.abort_on_exception = true
      Thread.current.name = "f#{t}"
      loop do
        VerboseThread.new(@log).run do
          cycle(host, port, strength, threads)
        end
        break unless @alive
      end
    end
  end
  @cleanup = Thread.new do
    Thread.current.abort_on_exception = true
    Thread.current.name = 'cleanup'
    loop do
      max = 600
      a = (0..max).take_while do
        sleep 0.1
        @alive
      end
      unless a.count == max
        @log.info("It's time to stop the cleanup thread (#{a.count} != #{max}, alive=#{@alive})...")
        break
      end
      VerboseThread.new(@log).run(true) do
        cleanup(host, port, strength, threads)
      end
    end
  end
  @log.info("Farm started with #{@threads.count} threads at #{host}:#{port}, strength is #{strength}")
  return unless block_given?
  begin
    yield(self)
  ensure
    @log.info("Terminating the farm with #{@threads.count} threads...")
    start = Time.now
    finish(@cleanup)
    @threads.each { |t| finish(t) }
    @log.info("Farm stopped in #{Age.new(start)}")
  end
end

#to_json ⇒ Object 



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# File 'lib/zold/node/farm.rb', line 68

def to_json
  {
    threads: @threads.map do |t|
      "#{t.name}/#{t.status}/#{t.alive? ? 'A' : 'D'}"
    end.join(', '),
    cleanup: @cleanup.status,
    pipeline: @pipeline.size,
    best: best.map(&:to_mnemo).join(', '),
    alive: @alive
  }
end

#to_text ⇒ Object 



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# File 'lib/zold/node/farm.rb', line 61

def to_text
  @threads.map do |t|
    trace = t.backtrace || []
    "#{t.name}: status=#{t.status}; alive=#{t.alive?};\n  #{trace.join("\n  ")}"
  end.join("\n")
end