class Bundler::Worker - bundler-1.9.9 Documentation

# class Bundler::Worker

### Constants

POISON

### Public Class Methods

new(size, func) click to toggle source

Creates a worker pool of specified size

@param size [Integer] Size of pool @param func [Proc] job to run in inside the worker pool

    # File lib/bundler/worker.rb, line 18
    def initialize(size, func)
      @request_queue = Queue.new
      @response_queue = Queue.new
      @func = func
      @threads = size.times.map { |i| Thread.start { process_queue(i) } }
      trap("INT") { abort_threads }
    end

### Public Instance Methods

deq() click to toggle source

Retrieves results of job function being executed in worker pool

    # File lib/bundler/worker.rb, line 34
    def deq
      result = @response_queue.deq
      raise result.exception if result.is_a?(WrappedException)
      result
    end

enq(obj) click to toggle source

Enqueue a request to be executed in the worker pool

@param obj [String] mostly it is name of spec that should be downloaded

    # File lib/bundler/worker.rb, line 29
    def enq(obj)
      @request_queue.enq obj
    end

stop() click to toggle source

    # File lib/bundler/worker.rb, line 40
    def stop
      stop_threads
    end

### Private Instance Methods

abort_threads() click to toggle source

    # File lib/bundler/worker.rb, line 67
    def abort_threads
      @threads.each {|i| i.exit }
      exit 1
    end

apply_func(obj, i) click to toggle source

    # File lib/bundler/worker.rb, line 54
    def apply_func(obj, i)
      @func.call(obj, i)
    rescue Exception => e
      WrappedException.new(e)
    end

process_queue(i) click to toggle source

    # File lib/bundler/worker.rb, line 46
    def process_queue(i)
      loop do
        obj = @request_queue.deq
        break if obj.equal? POISON
        @response_queue.enq apply_func(obj, i)
      end
    end

stop_threads() click to toggle source

Stop the worker threads by sending a poison object down the request queue so as worker threads after retrieving it, shut themselves down

    # File lib/bundler/worker.rb, line 62
    def stop_threads
      @threads.each { @request_queue.enq POISON }
      @threads.each { |thread| thread.join }
    end