[PATCH v4 8/9] user32: Invalidate cache in update_monitor_cache when modification time matches current time.

[Jacek Caban]

Also preserve last error.

Signed-off-by: Jacek Caban 
---
  dlls/user32/sysparams.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

On 11/30/21 1:26 PM, Jacek Caban  wrote:
> Also preserve last error.

FWIW I think I had similar problems with my nulldrv patches, and the last error reset comes from CreateMutex. If you plan on using ntdll functions directly (or if you don't, using them would), it should not be necessary to save and restore last error.

[Jacek Caban]

On 11/30/21 2:14 PM, [e-mail] wrote:
> On 11/30/21 1:26 PM, Jacek Caban  wrote:
> > Also preserve last error.
>
> FWIW I think I had similar problems with my nulldrv patches, and the 
> last error reset comes from CreateMutex. If you plan on using ntdll 
> functions directly (or if you don't, using them would), it should not 
> be necessary to save and restore last error.

The assumption that SetupAPI calls preserve last error seems 
questionable to me. Anyway, my plan is to move all update_monitor_cache 
callers to win32u and use the cache introduced by this series. I have 
update_monitor_cache removed in my tree and I plan to send a series 
doing that soon after this one. I just used a quick and non-invasive 
solution here for now.

Thanks,

Jacek

[Huw Davies]

Signed-off-by: Huw Davies