Fix #27328: Undoing an operation while baking fluids freezes Blender

Prevent Undo be run if there are any jobs are currently running.
This also makes sense with such jobs as multires baker, for example.

1 files changed, 10 insertions, 0 deletions

diff --git a/source/blender/windowmanager/intern/wm_jobs.c b/source/blender/windowmanager/intern/wm_jobs.c
index 16691ac5ab0..2d0d0f92a44 100644
--- a/source/blender/windowmanager/intern/wm_jobs.c
+++ b/source/blender/windowmanager/intern/wm_jobs.c
@@ -505,3 +505,13 @@ void wm_jobs_timer(const bContext *C, wmWindowManager *wm, wmTimer *wt)
 	}
 }
 
+int WM_jobs_has_running(wmWindowManager *wm)
+{
+	wmJob *steve;
+
+	for(steve= wm->jobs.first; steve; steve= steve->next)
+		if(steve->running)
+			return 1;
+
+	return 0;
+}