# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
#
# 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.
import time
[docs]class Signal(object):
def __init__(self, parent=None):
"""Init the Signal.
Used to signal between and within FL Components.
"""
self._value = None
self._trigger_time = None
self._triggered = False
self._parent = parent
[docs] def trigger(self, value):
"""Trigger the Signal.
Args:
value: set the value of the signal
"""
self._value = value
self._trigger_time = time.time()
self._triggered = True
@property
def value(self):
return self._value
@property
def trigger_time(self):
return self._trigger_time
[docs] def reset(self, value=None):
"""Reset the Signal.
Args:
value: reset the value of the signal
"""
self._value = value
self._trigger_time = None
self._triggered = False
@property
def triggered(self):
if self._triggered:
return True
if self._parent:
return self._parent.triggered
else:
return False