[Bug 58689] New: Full sockets are blocking even with FIONBIO=1, and leak server resources if terminated

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58689

            Bug ID: 58689
           Summary: Full sockets are blocking even with FIONBIO=1, and
                    leak server resources if terminated
           Product: Wine
           Version: 10.14
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winsock
          Assignee: wine-bugs(a)winehq.org
          Reporter: blubban(a)gmail.com
      Distribution: ---

Created attachment 79286
  --> http://bugs.winehq.org/attachment.cgi?id=79286
reproducer

Compile and run the attached program; -lws2_32, no other flags needed.

Expected (as seen on win10):

sent 16384 (total 16384)
sent 16384 (total 32768)
[...]
sent 16384 (total 2752512)
sent -1 (total 2752512)
read 16384 (total 16384)
[...]
read 16384 (total 2752512)
read -1 (total 2752512)


Actual:

sent 16384 (total 16384)
[...]
sent 16384 (total 2703360)

and then stops doing anything, despite setting FIONBIO=1. That's problem 1.

If ^C'd, it prints
^C0120:fixme:console:default_ctrl_handler Terminating process 20 on event 0

$ 0x563a4329ca30:1: Async thread=0x563a4325a9c0
0x563a4330d470:2: I/O status block
0x563a4330f620:1: Event manual=1 signaled=0
0x563a4330f4f0:1: Fd unix_fd=318 user=0x563a4330f2f0 options=00000020
0x563a4330f2f0:1: Socket fd=0x563a4330f4f0, state=3, mask=0, pending=50,
reported=50
0x563a4330eb00:1: Event manual=1 signaled=0
0x563a43286610:1: Event manual=1 signaled=0
0x563a4325add0:1: Event manual=1 signaled=1
0x563a4325a9c0:1: Thread id=0024 unix pid=474049 unix tid=474049 state=1
0x563a4325a1f0:1: Token id=0.1001 primary=1 impersonation level=-1
0x563a4325a0d0:1: Event manual=1 signaled=1
0x563a430f20e0:1: Process id=0020 handles=(nil)

which, according to #winehackers, means wineserver leaked some resources.
That's problem 2.


I don't know if those problems are two bugs, or one bug with two symptoms.

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