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Cache executor to avoid hitting open file limits #4560

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Merged
JelleZijlstra merged 3 commits into from
Jan 25, 2025
Merged

Cache executor to avoid hitting open file limits #4560

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8d9625e
Cache executor to avoid hitting open file limits
hauntsaninja Jan 25, 2025
8442902
.
hauntsaninja Jan 25, 2025
9c0dffd
fix
hauntsaninja Jan 25, 2025
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10 changes: 7 additions & 3 deletions src/blackd/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
import logging
from concurrent.futures import Executor, ProcessPoolExecutor
from datetime import datetime, timezone
from functools import partial
from functools import cache, partial
from multiprocessing import freeze_support

try:
Expand Down Expand Up @@ -85,12 +85,16 @@ def main(bind_host: str, bind_port: int) -> None:
web.run_app(app, host=bind_host, port=bind_port, handle_signals=True, print=None)


@cache
def executor() -> Executor:
return ProcessPoolExecutor()


def make_app() -> web.Application:
app = web.Application(
middlewares=[cors(allow_headers=(*BLACK_HEADERS, "Content-Type"))]
)
executor = ProcessPoolExecutor()
app.add_routes([web.post("/", partial(handle, executor=executor))])
app.add_routes([web.post("/", partial(handle, executor=executor()))])
return app


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