Commit Graph

6 Commits

Author SHA1 Message Date
Serhiy Storchaka 6c23635f2b
gh-111085: Fix invalid state handling in TaskGroup and Timeout (#111111)
asyncio.TaskGroup and asyncio.Timeout classes now raise proper RuntimeError
if they are improperly used.

* When they are used without entering the context manager.
* When they are used after finishing.
* When the context manager is entered more than once (simultaneously or
  sequentially).
* If there is no current task when entering the context manager.

They now remain in a consistent state after an exception is thrown,
so subsequent operations can be performed correctly (if they are allowed).

Co-authored-by: James Hilton-Balfe <gobot1234yt@gmail.com>
2023-10-21 22:18:34 +03:00
Victor Stinner db0a258e79
gh-110088, gh-109878: Fix test_asyncio timeouts (#110092)
Fix test_asyncio timeouts: don't measure the maximum duration, a test
should not measure a CI performance. Only measure the minimum
duration when a task has a timeout or delay. Add CLOCK_RES to
test_asyncio.utils.
2023-09-29 11:49:30 +00:00
Kristján Valur Jónsson 04adf2df39
gh-102780: Fix uncancel() call in asyncio timeouts (#102815)
Also use `raise TimeOut from <CancelledError instance>` so that the CancelledError is set
in the `__cause__` field rather than in the `__context__` field.

Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2023-03-22 10:52:10 -07:00
Thomas Grainger 0c6f898005
gh-95051: ensure that timeouts scheduled with `asyncio.Timeout` that have already expired are deliverered promptly (#95109)
Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
2022-07-24 13:18:05 -07:00
Victor Stinner 3ceb4b8d3a
gh-84623: Remove unused imports in tests (#93772) 2022-06-13 16:56:03 +02:00
Andrew Svetlov f537b2a4fb
bpo-46771: Implement asyncio context managers for handling timeouts (GH-31394)
Example:

async with asyncio.timeout(5):
    await some_task()

Will interrupt the await and raise TimeoutError if some_task() takes longer than 5 seconds.

Co-authored-by: Guido van Rossum <guido@python.org>
2022-03-10 08:05:20 -08:00