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# Copyright 2019 Virantha N. Ekanayake |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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"""Super-class of all the Tasks in the event-loop |
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""" |
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from enum import Enum |
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import logging |
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class Process: |
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"""Subclass this for anything going into the Async Event Loop |
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This class keeps track of a unique numeric ID for each process, and its name. |
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It also provides some utilty functions to log messages at various levels. |
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Attributes: |
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id (int) : Process ID (unique) |
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name (str): Human readable name for process (does not need to be unique) |
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""" |
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_next_id = 0 |
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def __init__(self, name): |
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self.name = name |
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# Assign ID |
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self.id = Process._next_id |
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Process._next_id += 1 |
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self.logger = logging.getLogger(str(self)) |
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def __str__(self): |
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return f'{self.name}.{self.id}' |
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def __repr__(self): |
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return f'{type(self).__name__}("{self.name}")' |
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def message(self, m : str , level = logging.INFO): |
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"""Print message *m* if its level is lower than the instance level""" |
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if level == logging.DEBUG: |
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self.logger.debug(m) |
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elif level == logging.INFO: |
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self.logger.info(m) |
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elif level == logging.ERROR: |
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self.logger.error(m) |
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def message_info(self, m): |
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"""Helper function for logging messages at INFO level""" |
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self.message(m, logging.INFO) |
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def message_debug(self, m): |
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"""Helper function for logging messages at DEBUG level""" |
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self.message(m, logging.DEBUG) |
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def message_error(self, m): |
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"""Helper function for logging messages at ERROR level""" |
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self.message(m, logging.ERROR) |
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virantha /
bricknil
