Function RunProcess

tools/test.py:707–748

(context, timeout, args, **rest)

def RunProcess(context, timeout, args, **rest):
  if context.verbose: print("#", " ".join(args))
  popen_args = args
  prev_error_mode = SEM_INVALID_VALUE
  if utils.IsWindows():
    if context.suppress_dialogs:
      # Try to change the error mode to avoid dialogs on fatal errors. Don't
      # touch any existing error mode flags by merging the existing error mode.
      # See http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx.
      error_mode = SEM_NOGPFAULTERRORBOX
      prev_error_mode = Win32SetErrorMode(error_mode)
      Win32SetErrorMode(error_mode | prev_error_mode)

  process = subprocess.Popen(
    args = popen_args,
    **rest
  )
  if utils.IsWindows() and context.suppress_dialogs and prev_error_mode != SEM_INVALID_VALUE:
    Win32SetErrorMode(prev_error_mode)
  # Compute the end time - if the process crosses this limit we
  # consider it timed out.
  if timeout is None: end_time = None
  else: end_time = time.time() + timeout
  timed_out = False
  # Repeatedly check the exit code from the process in a
  # loop and keep track of whether or not it times out.
  exit_code = None
  sleep_time = INITIAL_SLEEP_TIME

  while exit_code is None:
    if (not end_time is None) and (time.time() >= end_time):
      # Kill the process and wait for it to exit.
      KillTimedOutProcess(context, process.pid)
      exit_code = process.wait()
      timed_out = True
    else:
      exit_code = process.poll()
      time.sleep(sleep_time)
      sleep_time = sleep_time * SLEEP_TIME_FACTOR
      if sleep_time > MAX_SLEEP_TIME:
        sleep_time = MAX_SLEEP_TIME
  return (process, exit_code, timed_out)


def PrintError(str):