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[3.13] gh-120226: Fix test_sendfile_close_peer_in_the_middle_of_receiving on Linux >= 6.10 (GH-120227) #123421

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Merged
merged 1 commit into from
Sep 2, 2024
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[3.13] gh-120226: Fix test_sendfile_close_peer_in_the_middle_of_receiving on Linux >= 6.10 (GH-120227) #123421

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11 changes: 4 additions & 7 deletions Lib/test/test_asyncio/test_sendfile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -93,13 +93,10 @@ async def wait_closed(self):

class SendfileBase:

# 256 KiB plus small unaligned to buffer chunk
# Newer versions of Windows seems to have increased its internal
# buffer and tries to send as much of the data as it can as it
# has some form of buffering for this which is less than 256KiB
# on newer server versions and Windows 11.
# So DATA should be larger than 256 KiB to make this test reliable.
DATA = b"x" * (1024 * 256 + 1)
# Linux >= 6.10 seems buffering up to 17 pages of data.
# So DATA should be large enough to make this test reliable even with a
# 64 KiB page configuration.
DATA = b"x" * (1024 * 17 * 64 + 1)
# Reduce socket buffer size to test on relative small data sets.
BUF_SIZE = 4 * 1024 # 4 KiB

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