reentrant implementation of garbage collection

1 files changed, 2 insertions, 1 deletions

diff --git a/lstate.h b/lstate.h
index 84d3358e..158f7f8a 100644
--- a/lstate.h
+++ b/lstate.h
@@ -81,8 +81,9 @@ typedef struct global_State {
   Proto *rootproto;  /* list of all prototypes */
   Closure *rootcl;  /* list of all closures */
   Table *roottable;  /* list of all tables */
-  Udata *rootudata;   /* list of all userdata */
   UpVal *rootupval;  /* list of closed up values */
+  Udata *rootudata;   /* list of all userdata */
+  Udata *tmudata;  /* list of userdata to be GC */
   TString *tmname[TM_N];  /* array with tag-method names */
 } global_State;