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✏️ Mengedit: concurrency.py

import sys
from typing import AsyncGenerator, ContextManager, TypeVar

import anyio
from anyio import CapacityLimiter
from starlette.concurrency import iterate_in_threadpool as iterate_in_threadpool  # noqa
from starlette.concurrency import run_in_threadpool as run_in_threadpool  # noqa
from starlette.concurrency import (  # noqa
    run_until_first_complete as run_until_first_complete,
)

if sys.version_info >= (3, 7):
    from contextlib import AsyncExitStack as AsyncExitStack
    from contextlib import asynccontextmanager as asynccontextmanager
else:
    from contextlib2 import AsyncExitStack as AsyncExitStack  # noqa
    from contextlib2 import asynccontextmanager as asynccontextmanager  # noqa

_T = TypeVar("_T")

@asynccontextmanager
async def contextmanager_in_threadpool(
    cm: ContextManager[_T],
) -> AsyncGenerator[_T, None]:
    # blocking __exit__ from running waiting on a free thread
    # can create race conditions/deadlocks if the context manager itself
    # has it's own internal pool (e.g. a database connection pool)
    # to avoid this we let __exit__ run without a capacity limit
    # since we're creating a new limiter for each call, any non-zero limit
    # works (1 is arbitrary)
    exit_limiter = CapacityLimiter(1)
    try:
        yield await run_in_threadpool(cm.__enter__)
    except Exception as e:
        ok = bool(
            await anyio.to_thread.run_sync(
                cm.__exit__, type(e), e, None, limiter=exit_limiter
            )
        )
        if not ok:
            raise e
    else:
        await anyio.to_thread.run_sync(
            cm.__exit__, None, None, None, limiter=exit_limiter
        )

❌ Batal

Nama	Ukuran	Dimodifikasi	Permission	Aksi
📁 __pycache__	-	2026-06-23 12:24	0755
📁 dependencies	-	2026-06-23 12:24	0755
📁 middleware	-	2026-06-23 12:24	0755
📁 openapi	-	2026-06-23 12:24	0755
📁 security	-	2026-06-23 12:24	0755
💻 __init__.py	1015 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 applications.py	37.2 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 background.py	76 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 concurrency.py	1.6 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 datastructures.py	1.9 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 encoders.py	5.9 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 exception_handlers.py	988 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 exceptions.py	1.1 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 logger.py	54 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 param_functions.py	7.3 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 params.py	10.4 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
📎 py.typed	0 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 requests.py	142 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 responses.py	1.2 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 routing.py	52.2 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 staticfiles.py	69 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 templating.py	76 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 testclient.py	66 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 types.py	118 B	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 utils.py	6.6 KB	2026-06-23 12:24	0644	✏️ Edit ⬇
💻 websockets.py	222 B	2026-06-23 12:24	0644	✏️ Edit ⬇

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✏️ Mengedit: concurrency.py

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