73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Photobooth - a flexible photo booth software
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# Copyright (C) 2018 Balthasar Reuter <photobooth at re - web dot eu>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from enum import IntEnum
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from multiprocessing import Queue
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class Communicator:
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def __init__(self):
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super().__init__()
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self._queues = [Queue() for _ in Workers]
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def bcast(self, message):
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for q in self._queues[1:]:
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q.put(message)
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def send(self, target, message):
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if not isinstance(target, Workers):
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raise TypeError('target must be a member of Workers')
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self._queues[target].put(message)
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def recv(self, worker, block=True):
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if not isinstance(worker, Workers):
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raise TypeError('worker must be a member of Workers')
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return self._queues[worker].get(block)
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def iter(self, worker):
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if not isinstance(worker, Workers):
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raise TypeError('worker must be a member of Workers')
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return iter(self._queues[worker].get, None)
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def empty(self, worker):
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if not isinstance(worker, Workers):
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raise TypeError('worker must be a member of Workers')
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return self._queues[worker].empty()
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class Workers(IntEnum):
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MASTER = 0
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GUI = 1
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CAMERA = 2
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GPIO = 3
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WORKER = 4
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