Lua Add Emergency Garbage Collector

Derivative of work by RobertGabrielJakabosky
 http://lua-users.org/wiki/EmergencyGarbageCollector

I've only implemented the not enough memory part and
 expanded this idea to adding a mechanism to signal
 the OOM condition of the plugin buffer which allows us to only
 grab the playback buffer after garbage collection fails
 (SO THE MUSIC KEEPS PLAYING AS LONG AS POSSIBLE)

Change-Id: I684fb98b540ffc01f7ba324ab5b761ceb59b9f9b

1 files changed, 3 insertions, 0 deletions

diff --git a/apps/plugins/lua/ltable.c b/apps/plugins/lua/ltable.c
index ec84f4fabc..31162fe7c1 100644
--- a/apps/plugins/lua/ltable.c
+++ b/apps/plugins/lua/ltable.c
@@ -358,6 +358,8 @@ static void rehash (lua_State *L, Table *t, const TValue *ek) {
 Table *luaH_new (lua_State *L, int narray, int nhash) {
   Table *t = luaM_new(L, Table);
   luaC_link(L, obj2gco(t), LUA_TTABLE);
+  sethvalue2s(L, L->top, t); /* put table on stack */
+  incr_top(L);
   t->metatable = NULL;
   t->flags = cast_byte(~0);
   /* temporary values (kept only if some malloc fails) */
@@ -367,6 +369,7 @@ Table *luaH_new (lua_State *L, int narray, int nhash) {
   t->node = cast(Node *, dummynode);
   setarrayvector(L, t, narray);
   setnodevector(L, t, nhash);
+  L->top--; /* remove table from stack */
   return t;
 }