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Diffstat (limited to 'tests/lldb/tests/harness/util_timer.py')
-rw-r--r-- | tests/lldb/tests/harness/util_timer.py | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/tests/lldb/tests/harness/util_timer.py b/tests/lldb/tests/harness/util_timer.py deleted file mode 100644 index b83a76f1..00000000 --- a/tests/lldb/tests/harness/util_timer.py +++ /dev/null @@ -1,92 +0,0 @@ -# Copyright (C) 2016 The Android Open Source Project -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -'''Timer utility''' - -from __future__ import absolute_import - -import threading - - -class Timer(object): - '''A Timer utility to execute a callback after a certain interval.''' - - def __init__(self, interval, callback): - '''Initialise the Timer without starting it. - - Args: - interval: int or float, interval in seconds to count, before - invoking the callback - callback: function, it handles the function to call once - the timeout expires. - ''' - - # validate input parameters - if not isinstance(interval, (int, float)): - raise TypeError('Argument "interval" is not a number: ' - '{0}'.format(type(interval))) - if not callable(callback): - raise TypeError('Argument "callback" is not a function: ' - '{0}'.format(type(callback))) - - self._timer = None - self._callback = callback - self._interval = interval - - def _is_running(self): - '''Checks whether the timer is executing. - - Returns: - boolean, true if the timer is currently running, false otherwise - ''' - return self._timer is not None - - def start(self): - '''Starts the timer. - - Returns: - self, the Timer instance - - Throws: - RuntimeError: if the timer is already running - ''' - if self._is_running(): - raise RuntimeError('Timer already running') - - self._timer = threading.Timer(self._interval, self._callback) - self._timer.start() - return self # so that we can perform Timer(...).start() - - def stop(self): - '''Stops the timer if it's executing. - - Returns: - self, the Timer instance - ''' - - if self._is_running(): - self._timer.cancel() - self._timer = None - return self - - def reset(self): - '''Restart the timer. - - Returns: - self, the Timer instance - ''' - - self.stop() - self.start() - return self |