[Bug 51740] New: WaitForMultipleObjects doesn't signal for stdin

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51740

Bug ID: 51740
           Summary: WaitForMultipleObjects doesn't signal for stdin
           Product: Wine
           Version: 6.16
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 70623
  --> https://bugs.winehq.org/attachment.cgi?id=70623
WaitForMultipleObjects example that acts different in wine

I wanted to be signaled when stdin has something. Below code works as expected
in windows 11.

In windows 11 whatever key you press signals it but in Wine it doesn't matter
what key you press nothing happens.

I also opened stackoverflow question here:
https://stackoverflow.com/q/69125934/15114852

[Bug 51740] WaitForMultipleObjects doesn't signal for stdin

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51740

Fabian Maurer  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocker                     |normal
                 CC|                            |[e-mail]

--- Comment #1 from Fabian Maurer  ---
Why would that be a blocker?

I can reproduce the issue, but it doesn't seem consistent on Win7 either. When
running from CMD, it works as you expect. But when double clicked, it instantly
closes again.

Is there a reason you don't use ReadConsoleInput or something like that?

[Bug 51740] WaitForMultipleObjects doesn't signal for stdin

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51740

--- Comment #2 from [e-mail] ---
(In reply to Fabian Maurer from comment #1)
> Why would that be a blocker?
>
> I can reproduce the issue, but it doesn't seem consistent on Win7 either.
> When running from CMD, it works as you expect. But when double clicked, it
> instantly closes again.
>
> Is there a reason you don't use ReadConsoleInput or something like that?

When you double click to open program WaitForMultipleObjects() probably just
gets some signal thats other than KeyEvent you can check out
https://docs.microsoft.com/en-us/windows/console/input-record-str

I actually call ReadConsoleInput() after WaitForMultipleObjects() because
WaitForMultipleObjects() makes us know ReadConsoleInput() will have atleast one
event. I didn't add full code because we never pass WaitForMultipleObjects() in
wine.

[Bug 51740] WaitForMultipleObjects doesn't signal for stdin

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51740

--- Comment #3 from [e-mail] ---
This bug doesn't happen with wine's virtual desktop.