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ddf78d11ae
Co-authored-by: Claude Opus 4.8 <[email protected]> Co-authored-by: James Brunton <[email protected]> Co-authored-by: Reece Browne <[email protected]> Co-authored-by: ConnorYoh <[email protected]> Co-authored-by: Reece <[email protected]> Co-authored-by: EthanHealy01 <[email protected]> Co-authored-by: Ludy <[email protected]>
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
from __future__ import annotations
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import asyncio
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import pytest
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from pydantic_ai.messages import ModelMessage, ModelResponse, TextPart
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from pydantic_ai.models import Model, ModelRequestParameters
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from pydantic_ai.settings import ModelSettings
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from stirling.services.runtime import ConcurrencyLimitedModel
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class TrackingModel(Model):
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"""Records the high-water mark of concurrent in-flight requests."""
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def __init__(self) -> None:
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super().__init__()
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self.active = 0
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self.max_active = 0
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@property
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def model_name(self) -> str:
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return "tracking"
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@property
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def system(self) -> str:
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return "test"
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async def request(
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self,
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messages: list[ModelMessage],
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model_settings: ModelSettings | None,
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model_request_parameters: ModelRequestParameters,
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) -> ModelResponse:
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self.active += 1
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self.max_active = max(self.max_active, self.active)
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# Yield twice so every gathered task gets a chance to be in flight
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# together before any of them completes.
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await asyncio.sleep(0)
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await asyncio.sleep(0)
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self.active -= 1
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return ModelResponse(parts=[TextPart(content="ok")])
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@pytest.mark.anyio
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async def test_shared_semaphore_caps_concurrency_across_models() -> None:
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inner = TrackingModel()
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semaphore = asyncio.Semaphore(2)
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fast = ConcurrencyLimitedModel(inner, semaphore)
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smart = ConcurrencyLimitedModel(inner, semaphore)
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params = ModelRequestParameters()
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await asyncio.gather(
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*(fast.request([], None, params) for _ in range(5)),
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*(smart.request([], None, params) for _ in range(5)),
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)
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assert inner.max_active == 2
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