| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """An interface to access the local graphics facade.""" |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros.graphics import graphics_utils |
| |
| |
| class GraphicsFacadeNative(object): |
| """Facade to access graphics utilities for catching GPU hangs.""" |
| |
| |
| def __init__(self): |
| """Initializes the graphics facade. |
| |
| Graphics state checker is initialized with a dedicated function to |
| control timing for the initial set of errors extracted from logs. |
| |
| """ |
| self._graphics_state_checker = None |
| |
| |
| def graphics_state_checker_initialize(self): |
| """Create and initialize the graphics state checker object. |
| |
| This will establish existing errors and take a snapshot of graphics |
| kernel memory. |
| |
| """ |
| self._graphics_state_checker = graphics_utils.GraphicsStateChecker() |
| |
| |
| def graphics_state_checker_finalize(self): |
| """Throw an error on new GPU hang messages in system logs. |
| |
| @raises TestError: Finalize was called before initialize. |
| """ |
| if self._graphics_state_checker is None: |
| raise error.TestError('Graphics state checker initialize not called.') |
| self._graphics_state_checker.finalize() |
