| # Copyright 2017 The Chromium Authors. All rights reserved. | |
| # Use of this source code is governed by a BSD-style license that can be | |
| # found in the LICENSE file. | |
| import threading | |
| class UnknownMessageTypeError(ValueError): | |
| """Indicates that a message with an unrecoganized type was received.""" | |
| class WorkerTimeoutError(RuntimeError): | |
| """Indicates that a factory worker timed out.""" | |
| def __init__(self): | |
| super(WorkerTimeoutError, self).__init__( | |
| 'worker %d timed out' % threading.current_thread().ident) |