mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
e2ddad6fea
The motion sensor queue doesn't shut down properly at script end at the moment and prevents the interpreter shutting down. This is because it's a non-daemon thread so `__del__` never gets run and so on. This is a bit of a major PR - I can split it up if you want. Firstly it makes a common base class called `GPIODevice` for both `InputDevice` and `OutputDevice`. This just takes care of the read-only pin stuff. Next it makes a `GPIOThread` class that ensures its a daemon thread, and which also ensures proper cleanup on shutdown. Finally, it fixes `MotionSensor` to use the new `GPIOThread` class (tested this time! Works nicely) and adds the `blink` method to the `LED` class (which also works nicely this time).
44 lines
946 B
Python
44 lines
946 B
Python
from threading import Thread, Event
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from RPi import GPIO
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class GPIODeviceError(Exception):
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pass
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class GPIODevice(object):
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def __init__(self, pin=None):
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if pin is None:
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raise GPIODeviceError('No GPIO pin number given')
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self._pin = pin
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@property
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def pin(self):
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return self._pin
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_GPIO_THREADS = set()
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def _gpio_threads_shutdown():
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while _GPIO_THREADS:
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for t in _GPIO_THREADS.copy():
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t.stop()
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class GPIOThread(Thread):
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def __init__(self, group=None, target=None, name=None, args=(), kwargs={}):
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super(GPIOThread, self).__init__(group, target, name, args, kwargs)
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self.stopping = Event()
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self.daemon = True
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def start(self):
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self.stopping.clear()
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_GPIO_THREADS.add(self)
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super(GPIOThread, self).start()
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def stop(self):
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self.stopping.set()
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self.join()
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_GPIO_THREADS.discard(self)
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