geronimo-iia /
async-rx
| @@ 17-47 (lines=31) @@ | ||
| 14 | self._subscribers = 0 |
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| 15 | super().__init__(dict) |
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| 16 | ||
| 17 | async def subscribe(self, an_observer: Observer) -> Subscription: |
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| 18 | ||
| 19 | if self._subscribers > 0: |
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| 20 | raise RuntimeError("Only one subscription is supported") |
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| 21 | ||
| 22 | self._subscribers += 1 |
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| 23 | ||
| 24 | _consumer_task = None |
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| 25 | ||
| 26 | async def consumer(): |
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| 27 | try: |
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| 28 | while True: |
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| 29 | await self._event.wait() |
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| 30 | await an_observer.on_next(dict(self.data)) |
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| 31 | self._event.clear() |
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| 32 | except curio.TaskCancelled: |
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| 33 | # it's time to finish |
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| 34 | pass |
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| 35 | ||
| 36 | async def _subscription(): |
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| 37 | nonlocal _consumer_task |
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| 38 | if _consumer_task: |
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| 39 | await _consumer_task.cancel() |
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| 40 | _consumer_task = None |
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| 41 | self._subscribers -= 1 |
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| 42 | ||
| 43 | _consumer_task = await curio.spawn(consumer()) |
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| 44 | ||
| 45 | await an_observer.on_next(dict(self.data)) |
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| 46 | ||
| 47 | return _subscription |
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| 48 | ||
| 49 | def _set_event(self): |
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| 50 | if not self._event.is_set() and self._subscribers: |
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| @@ 17-46 (lines=30) @@ | ||
| 14 | self._subscribers = 0 |
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| 15 | super().__init__(initlist=initlist if initlist else []) |
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| 16 | ||
| 17 | async def subscribe(self, an_observer: Observer) -> Subscription: |
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| 18 | if self._subscribers > 0: |
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| 19 | raise RuntimeError("Only one subscription is supported") |
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| 20 | ||
| 21 | self._subscribers += 1 |
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| 22 | ||
| 23 | _consumer_task = None |
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| 24 | ||
| 25 | async def consumer(): |
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| 26 | try: |
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| 27 | while True: |
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| 28 | await self._event.wait() |
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| 29 | await an_observer.on_next(list(self.data)) |
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| 30 | self._event.clear() |
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| 31 | except curio.TaskCancelled: |
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| 32 | # it's time to finish |
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| 33 | pass |
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| 34 | ||
| 35 | async def _subscription(): |
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| 36 | nonlocal _consumer_task |
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| 37 | if _consumer_task: |
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| 38 | await _consumer_task.cancel() |
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| 39 | _consumer_task = None |
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| 40 | self._subscribers -= 1 |
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| 41 | ||
| 42 | _consumer_task = await curio.spawn(consumer()) |
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| 43 | ||
| 44 | await an_observer.on_next(list(self.data)) |
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| 45 | ||
| 46 | return _subscription |
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| 47 | ||
| 48 | def _set_event(self): |
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| 49 | if not self._event.is_set(): |
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