tdf#96887 vcl: stop using periodic timers on WNT

Every time the periodic timer fires, it does a PostMessage() to the
main thread.  The main thread will only process the first message and
discard the rest anyway, but with a short enough timer and other
threads hogging the SolarMutex it's possible that the message queue
overflows and other PostMessage calls fail with ERROR_NOT_ENOUGH_QUOTA.

Try to avoid the problem by having the WinSalTimer always be a one-shot
timer; when it fires and the main thread processes the posted message,
it is restarted with the new due time.

This requires creating a new TimerQueueTimer because
ChangeTimerQueueTimer only works on periodic timers.

Change-Id: I816bd3fa5fbfbea4f26be8ff680a1c916618d3f9
Reviewed-on: https://gerrit.libreoffice.org/24024
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/vcl/inc/win/salinst.h b/vcl/inc/win/salinst.h
index fe2c3414593e..43c0313efa7d 100644
--- a/vcl/inc/win/salinst.h
+++ b/vcl/inc/win/salinst.h
@@ -83,6 +83,7 @@ SalFrame* ImplSalCreateFrame( WinSalInstance* pInst, HWND hWndParent, SalFrameSt
 SalObject* ImplSalCreateObject( WinSalInstance* pInst, WinSalFrame* pParent );
 HWND ImplSalReCreateHWND( HWND hWndParent, HWND oldhWnd, bool bAsChild );
 void ImplSalStartTimer( sal_uIntPtr nMS, bool bMutex = false );
+void ImplSalStopTimer();
 
 #endif // INCLUDED_VCL_INC_WIN_SALINST_H