[Bug 55204] New: ws2_32:sock - test_close_events() sometimes misses the close event on Windows

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55204

            Bug ID: 55204
           Summary: ws2_32:sock - test_close_events() sometimes misses the
                    close event on Windows
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: winsock
          Assignee: wine-bugs(a)winehq.org
          Reporter: fgouget(a)codeweavers.com

ws2_32:sock - test_close_events() sometimes misses the close event on Windows:

sock.c:6845: Test failed: got events 0
sock.c:6858: Test failed: got -1
sock.c:6872: Test failed: got events 0
sock.c:6890: Test failed: expected timeout

See https://test.winehq.org/data/patterns.html#ws2_32:sock

This happened 9 times in the past 8 months, mostly on Windows 7 but it did
happen once on Windows 10:
* 2022-12-14 win7_newtb-w7u-adm
* 2023-02-08 win22H2_fgtb-w10pro64-64
* 2023-02-22 win7_newtb-w7u-de
* 2023-03-17 win7_newtb-w7u-de
* 2023-03-27 win7_newtb-w7u-2qxl
* 2023-03-27 win7_newtb-w7u
* 2023-05-04 win7_newtb-w7u
* 2023-05-10 win7_newtb-w7u-es
* 2023-06-29 win7_newtb-w7u

There are also two cases where the second events check does get an FD_CLOSE
event:

sock.c:6697: Test failed: got events 0
sock.c:6710: Test failed: got -1
sock.c:6712: Test failed: expected timeout
sock.c:6712: Test failed: got events 0x20

* 2022-11-28 win21H1_newtb-w10pro64-he-64
* 2023-02-27 win22H2_fgtb-w10pro64-rx550-64

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[Bug 55204] ws2_32:sock - test_close_events() sometimes misses the close event on Windows

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55204

François Gouget <fgouget(a)codeweavers.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |source, testcase

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[Bug 55204] ws2_32:sock - test_close_events() sometimes misses the close event on Windows

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55204

Zeb Figura <z.figura12(a)gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |z.figura12(a)gmail.com

--- Comment #1 from Zeb Figura <z.figura12(a)gmail.com> ---
This is getting kind of ridiculous; how much time does Windows need to send FIN
over a loopback connection?

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