Deep userdata support improvements

* bumped version to 3.9.0
* keepers now require "package", receive package.path & package.cpath,
and call on_state_create() if it is a C function
* changed the deep public API (improved deep idfunc signature, renamed
luaG_deep_userdata to luaG_newdeepuserdata)
* if an error occurs while copying a deep userdata, don't raise inside
the keeper state
* fixed situations where raised errors could lead to memory leaks (deep
gc)

1 files changed, 11 insertions, 5 deletions

diff --git a/src/tools.h b/src/tools.h
index be358db..ebe407b 100644
--- a/src/tools.h
+++ b/src/tools.h
@@ -99,11 +99,15 @@ extern int debugspew_indent_depth;
 void luaG_dump( lua_State* L );
 
 lua_State* luaG_newstate( lua_State* _from, char const* libs);
-void luaG_copy_one_time_settings( lua_State* L, lua_State* L2, char const* name_);
+void luaG_copy_one_time_settings( lua_State* L, lua_State* L2);
 
-typedef struct {
-    volatile int refcount;
-    void *deep;
+// this is pointed to by full userdata proxies, and allocated with malloc() to survive any lua_State lifetime
+typedef struct
+{
+        volatile int refcount;
+        void* deep;
+        // when stored in a keeper state, the full userdata doesn't have a metatable, so we need direct access to the idfunc
+        luaG_IdFunction idfunc;
 } DEEP_PRELUDE;
 
 enum eLookupMode
@@ -113,7 +117,7 @@ enum eLookupMode
         eLM_FromKeeper // send a function from a keeper state to a lane
 };
 
-void luaG_push_proxy( lua_State *L, luaG_IdFunction idfunc, DEEP_PRELUDE *deep_userdata);
+char const* push_deep_proxy( lua_State* L, DEEP_PRELUDE* prelude, enum eLookupMode mode_);
 void luaG_inter_copy_package( lua_State* L, lua_State* L2, int _idx, enum eLookupMode mode_);
 
 int luaG_inter_copy( lua_State *L, lua_State *L2, uint_t n, enum eLookupMode mode_);
@@ -130,6 +134,8 @@ extern MUTEX_T mtid_lock;
 void populate_func_lookup_table( lua_State* L, int _i, char const* _name);
 void serialize_require( lua_State *L);
 int initialize_on_state_create( lua_State *L);
+void call_on_state_create( lua_State* L, lua_State* from_, enum eLookupMode mode_);
+
 extern MUTEX_T require_cs;
 
 // for verbose errors