[Bug 37345] New: Wine does not flush stdout if stdout is redirected (Regression!)
wine-bugs at winehq.org
wine-bugs at winehq.org
Wed Oct 1 04:06:47 CDT 2014
https://bugs.winehq.org/show_bug.cgi?id=37345
Bug ID: 37345
Summary: Wine does not flush stdout if stdout is redirected
(Regression!)
Product: Wine
Version: 1.7.27
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: major
Priority: P2
Component: msvcrt
Assignee: wine-bugs at winehq.org
Reporter: anduchs at gmail.com
When calling wine from another process after redirecting stdout to a pipe, wine
does not flush the stdout-buffer correctly anymore. This is a regression.
Attached is a usecase. To test do:
i686-w64-mingw32-gcc helloworld.c
gcc callwine.c
./a.out
What will happen is:
- on a buggy wine it will take 10 seconds and then all of the stdout-buffer is
flushed on the exit of the child. (imagine the child would run longer than the
10 seconds)
- on a good wine we will see some stdout-content then 10 second sleep and then
the rest of the content.
This is a regesstion that happened between 1.7.4 and 1.7.5. The bisect
identified commit afec0b00bd6250fe21e8deccbc8116a4aca6a7a4 "msvcrt: Make the
first call to fwrite buffered." as problem.
The attached patch is a revert of this commit ported forward to 1.7.27.
Unfortunately I don't quite grasp the logics of the offending commit. If
somebody who knows that patch could help, I'd highly appreciate it.
Cheers,
Andreas
P.S. This could be related to bug 32791.
--
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.
More information about the wine-bugs
mailing list