forked from M-Labs/artiq
82 lines
1.9 KiB
Python
82 lines
1.9 KiB
Python
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from random import Random
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from collections import namedtuple
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Pulse = namedtuple("Pulse", "time output frequency duration")
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WaitEdge = namedtuple("WaitEdge", "time input")
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class Parallel:
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def __init__(self, *threads):
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self.threads = threads
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def threads_test(now):
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yield Pulse(now, "x", 1, 10)
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now += 10
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def thread0(now):
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now = yield WaitEdge(now, "a")
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now += 5
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yield Pulse(now, "a", 30, 1)
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now += 1
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now = yield WaitEdge(now, "a")
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now += 10
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yield Pulse(now, "a", 60, 1)
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now += 1
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return now
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def thread1(now):
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now = yield WaitEdge(now, "b")
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now += 3
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yield Pulse(now, "b", 30, 1)
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now += 1
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return now
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now = yield Parallel(thread0(now), thread1(now))
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return now
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prng = Random(42)
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def execute(threads):
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end_time = 0
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thread_replies = [None]*len(threads)
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continue_execute = True
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while continue_execute:
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continue_execute = False
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new_thread_replies = []
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for thread, send_data in zip(threads, thread_replies):
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try:
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thread_request = thread.send(send_data)
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except StopIteration as e:
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if e.value > end_time:
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end_time = e.value
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else:
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continue_execute = True
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thread_reply = None
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if isinstance(thread_request, Pulse):
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yield thread_request
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elif isinstance(thread_request, WaitEdge):
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yield thread_request
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edge_delay = prng.randrange(100)
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print("*** Simulating input edge on '{}' after {}".format(thread_request.input, edge_delay))
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thread_reply = thread_request.time + edge_delay
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elif isinstance(thread_request, Parallel):
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thread_reply = yield from execute(thread_request.threads)
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else:
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raise TypeError
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new_thread_replies.append(thread_reply)
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thread_replies = new_thread_replies
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return end_time
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if __name__ == "__main__":
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ex = execute([threads_test(0)])
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while True:
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try:
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ev = next(ex)
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except StopIteration as e:
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print("*** Execution ended at {}".format(e.value))
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break
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else:
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print(ev)
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