1# Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5"""Provides utility methods for interacting with upstart""" 6 7import os 8 9from autotest_lib.client.common_lib import utils 10 11def ensure_running(service_name): 12 """Fails if |service_name| is not running. 13 14 @param service_name: name of the service. 15 """ 16 cmd = 'initctl status %s | grep start/running' % service_name 17 utils.system(cmd) 18 19 20def has_service(service_name): 21 """Returns true if |service_name| is installed on the system. 22 23 @param service_name: name of the service. 24 """ 25 return os.path.exists('/etc/init/' + service_name + '.conf') 26