Don't wait-yield non-main threads in the main thread

This prevents blocking the main thread by a yielding non-main thread.
The current solution is to wait on a condition, which is set by the
main thread on wakeup.

Change-Id: I8d680bb51a36ce1e0d3d4713d47d8e2ef93d7297
Reviewed-on: https://gerrit.libreoffice.org/42808
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/vcl/inc/osx/salinst.h b/vcl/inc/osx/salinst.h
index 65db0d0b0f2a..0e30dfafb693 100644
--- a/vcl/inc/osx/salinst.h
+++ b/vcl/inc/osx/salinst.h
@@ -72,6 +72,8 @@ class AquaSalInstance : public SalInstance
         {}
     };
 
+    bool RunInMainYield( bool bHandleAllCurrentEvents );
+
 public:
     SalYieldMutex*                          mpSalYieldMutex;        // Sal-Yield-Mutex
     OUString                                maDefaultPrinter;