36 lines
939 B
Python
36 lines
939 B
Python
"""Blocking choice bus for the Image Gate node. Stdlib only — no comfy/torch."""
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import time
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class GateCancelled(Exception):
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pass
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class GateBus:
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messages = {} # node_id(str) -> chosen int (1-based)
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masks = {} # node_id(str) -> PNG bytes
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cancelled = False
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@classmethod
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def arm(cls, node_id):
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cls.messages.pop(str(node_id), None)
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cls.masks.pop(str(node_id), None)
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cls.cancelled = False
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@classmethod
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def put(cls, node_id, message):
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if message == "__cancel__":
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cls.cancelled = True
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else:
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cls.messages[str(node_id)] = int(message)
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@classmethod
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def wait(cls, node_id, period=0.1):
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sid = str(node_id)
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while sid not in cls.messages:
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if cls.cancelled:
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cls.cancelled = False
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raise GateCancelled()
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time.sleep(period)
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return cls.messages.pop(sid)
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