Class: Binpacker::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/binpacker/worker.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id, runner_class, passthrough: [], quiet: false) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/binpacker/worker.rb', line 9

def initialize(id, runner_class, passthrough: [], quiet: false)
  @id = id
  @runner_class = runner_class
  @passthrough = passthrough
  @quiet = quiet
  @status = :created
  @timings = []
  @exit_code = 0
  @example_count = 0
  @passed_count = 0
end

Instance Attribute Details

#example_count ⇒ Object (readonly)

Returns the value of attribute example_count.



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# File 'lib/binpacker/worker.rb', line 7

def example_count
  @example_count
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/binpacker/worker.rb', line 7

def id
  @id
end

#passed_count ⇒ Object (readonly)

Returns the value of attribute passed_count.



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# File 'lib/binpacker/worker.rb', line 7

def passed_count
  @passed_count
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/binpacker/worker.rb', line 7

def status
  @status
end

Instance Method Details

#batch_done ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 64

def batch_done
  @stdin_w.puts JSON.generate({ type: "done" })
end

#cleanup ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 154

def cleanup
  kill! if @status == :running || @status == :ready
  [@stdin_w, @stdout_r, @stderr_r].each { |io| io&.close unless io&.closed? }
  @stderr_thread&.kill
rescue IOError
end

#collect_results ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 112

def collect_results
  @status = :running

  @stdout_r.each_line do |line|
    data = JSON.parse(line.strip)
    case data["type"]
    when "timing"
      @timings << { file: data["file"], name: data["name"], time: data["time"] }
    when "result"
      @exit_code = data["exit_code"]
      @passed = data["passed"]
      @example_count = data["total"] || 0
      @passed_count = data["passed_count"] || 0
      break
    when "batch_result"
      @exit_code = data["passed"] ? 0 : 1
      @passed = data["passed"]
      @example_count = data["total"] || 0
      @passed_count = data["passed_count"] || 0
      break
    when "output"
      $stdout.write data["text"] if data["text"]
    end
  rescue JSON::ParserError
    $stdout.write line
  end

  Process.wait(@pid)
  @status = :finished
rescue Errno::ECHILD
  @status = :crashed
  @passed = false
end

#send_test(test) ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 60

def send_test(test)
  @stdin_w.puts JSON.generate({ file: test.file, name: test.name })
end

#send_tests(tests) ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 56

def send_tests(tests)
  tests.each { |t| @stdin_w.puts JSON.generate({ file: t.file, name: t.name }) }
end

#signal_done ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 68

def signal_done
  @stdin_w.puts JSON.generate({ type: "done" })
  @stdin_w.close
end

#start ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 21

def start
  worker_script = File.expand_path("../../exe/binpacker-worker", __dir__)

  @stdin_r, @stdin_w = IO.pipe(encoding: "UTF-8")
  @stdout_r, @stdout_w = IO.pipe(encoding: "UTF-8")
  @stderr_r, @stderr_w = IO.pipe(encoding: "UTF-8")

  @pid = Process.spawn(
    RbConfig.ruby, worker_script,
    "--runner", @runner_class.runner_name,
    "--id", @id.to_s,
    *passthrough_args,
    in: @stdin_r, out: @stdout_w, err: @stderr_w,
    close_others: true
  )

  @stdin_r.close; @stdout_w.close; @stderr_w.close

  @stderr_thread = Thread.new do
    @stderr_r.each_line { |line| $stderr.write line unless @quiet }
  end

  ready_line = read_line(timeout: 30)
  if ready_line
    data = JSON.parse(ready_line.strip)
    @status = :ready if data["type"] == "ready"
  end

  raise WorkerError, "worker #{@id} failed to start" unless @status == :ready
  self
rescue JSON::ParserError
  @status = :error
  raise WorkerError, "worker #{@id} sent invalid ready signal"
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/binpacker/worker.rb', line 150

def success?
  @exit_code == 0
end

#timings ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 146

def timings
  @timings
end

#wait_for_batch ⇒ Object 



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# File 'lib/binpacker/worker.rb', line 73

def wait_for_batch
  deadline = Time.now + 300
  while Time.now < deadline
    begin
      line = read_line(timeout: 1)
      return nil unless line
      next unless line.strip.start_with?("{")
      data = JSON.parse(line.strip)

      if data["type"] == "timing"
        @timings << { file: data["file"], name: data["name"], time: data["time"] }
      elsif data["type"] == "batch_result"
        @exit_code = data["passed"] ? 0 : 1
        @example_count += data["total"] || 0
        @passed_count += data["passed_count"] || 0
        return {
          timings: [],
          exit_code: @exit_code,
          examples: data["total"] || 0,
          passed: data["passed_count"] || 0
        }
      elsif data["type"] == "result"
        @exit_code = data["exit_code"]
        @passed = data["passed"]
        @example_count = data["total"] || 0
        @passed_count = data["passed_count"] || 0
        return {
          timings: [],
          exit_code: @exit_code,
          examples: @example_count,
          passed: @passed_count
        }
      end
    rescue JSON::ParserError
    end
  end
  nil
end