48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
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import dbus.service
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import random
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import time
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import threading
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class SlowThread(object):
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def __init__(self, bits, callback):
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self._callback = callback
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self.result = ''
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self.thread = threading.Thread(target=self.work, args=(bits,))
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self.thread.start()
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self.thread_id = str(self.thread.ident)
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def work(self, bits):
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num = ''
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while True:
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num += str(random.randint(0, 1))
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bits -= 1
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time.sleep(1)
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if bits <= 0:
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break
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self._callback(self.thread_id, str(int(num, 2)))
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class RandomData(dbus.service.Object):
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def __init__(self, bus_name):
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super().__init__(bus_name, "/com/larry_price/test/RandomData")
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random.seed()
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@dbus.service.method("com.larry_price.test.RandomData",
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in_signature='i', out_signature='s')
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def quick(self, bits=8):
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return str(random.getrandbits(bits))
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@dbus.service.method("com.larry_price.test.RandomData",
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in_signature='i', out_signature='s')
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def slow(self, bits=8):
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thread = SlowThread(bits, self.slow_result)
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return thread.thread_id
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@dbus.service.signal("com.larry_price.test.RandomData", signature='ss')
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def slow_result(self, thread_id, result):
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pass
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