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| 1 # Copyright 2016 Google Inc. |
| 2 # |
| 3 # Use of this source code is governed by a BSD-style license that can be |
| 4 # found in the LICENSE file. |
| 5 |
| 6 import time |
| 7 |
| 8 class HardwareException(Exception): |
| 9 def __init__(self, message, sleeptime=60): |
| 10 Exception.__init__(self, message) |
| 11 self.sleeptime = sleeptime |
| 12 |
| 13 class Hardware: |
| 14 def __init__(self): |
| 15 self.kick_in_time = 0 |
| 16 |
| 17 def __enter__(self): |
| 18 return self |
| 19 |
| 20 def __exit__(self, exception_type, exception_value, traceback): |
| 21 pass |
| 22 |
| 23 def sanity_check(self): |
| 24 '''Raises a HardwareException if any hardware state is not as expected.''' |
| 25 pass |
| 26 |
| 27 def sleep(self, sleeptime): |
| 28 '''Puts the hardware into a resting state for a fixed amount of time.''' |
| 29 time.sleep(sleeptime) |
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