Class: CC::Analyzer::Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/cc/analyzer/engine.rb

Constant Summary collapse

TIMEOUT =

15m

15 * 60

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, metadata, code_path, config_json, label) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/cc/analyzer/engine.rb', line 11

def initialize(name, metadata, code_path, config_json, label)
  @name = name
  @metadata = metadata
  @code_path = code_path
  @config_json = config_json
  @label = label.to_s
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/cc/analyzer/engine.rb', line 7

def name
  @name
end

Instance Method Details

#run(stdout_io, stderr_io = StringIO.new) ⇒ Object 



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# File 'lib/cc/analyzer/engine.rb', line 19

def run(stdout_io, stderr_io = StringIO.new)
  pid, _, out, err = POSIX::Spawn.popen4(*docker_run_command)
  engine_running = true
  Analyzer.statsd.increment("cli.engines.started")

  t_out = Thread.new do
    out.each_line("\0") do |chunk|
      stdout_io.write(chunk.chomp("\0"))
    end
  end

  t_err = Thread.new do
    err.each_line do |line|
      if stderr_io
        stderr_io.write(line)
      end
    end
  end

  Thread.new do
    sleep TIMEOUT

    if engine_running
      Thread.current.abort_on_exception = true
      run_command("docker kill #{container_name}")

      Analyzer.statsd.increment("cli.engines.result.error")
      Analyzer.statsd.increment("cli.engines.result.error.timeout")
      Analyzer.statsd.increment("cli.engines.names.#{name}.result.error")
      Analyzer.statsd.increment("cli.engines.names.#{name}.result.error.timeout")
      raise EngineTimeout, "engine #{name} ran past #{TIMEOUT} seconds and was killed"
    end
  end

  pid, status = Process.waitpid2(pid)
  engine_running = false
  Analyzer.statsd.increment("cli.engines.finished")

  if status.success?
    Analyzer.statsd.increment("cli.engines.names.#{name}.result.success")
    Analyzer.statsd.increment("cli.engines.result.success")
  else
    Analyzer.statsd.increment("cli.engines.names.#{name}.result.error")
    Analyzer.statsd.increment("cli.engines.result.error")

    raise EngineFailure, "engine #{name} failed with status #{status.exitstatus} and stderr #{stderr_io.string.inspect}"
  end
ensure
  t_out.join if t_out
  t_err.join if t_err
end