Add collectgarbage("isrunning").

1 files changed, 3 insertions, 0 deletions

diff --git a/src/lj_api.c b/src/lj_api.c
index 1f09284f..042b0d9c 100644
--- a/src/lj_api.c
+++ b/src/lj_api.c
@@ -1188,6 +1188,9 @@ LUA_API int lua_gc(lua_State *L, int what, int data)
     res = (int)(g->gc.stepmul);
     g->gc.stepmul = (MSize)data;
     break;
+  case LUA_GCISRUNNING:
+    res = (g->gc.threshold != LJ_MAX_MEM);
+    break;
   default:
     res = -1;  /* Invalid option. */
   }