Haka
object.h
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2  * License, v. 2.0. If a copy of the MPL was not distributed with this
3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4 
5 #ifndef HAKA_LUA_OBJECT_H
6 #define HAKA_LUA_OBJECT_H
7 
8 #include <haka/types.h>
9 
10 struct lua_state;
11 struct lua_State;
12 
13 
14 /*
15  * Lua object management
16  * This type allow to safely share an object between the C
17  * and Lua by taking care of never keeping in Lua a reference
18  * on a userdata that has been destroyed.
19  */
20 
21 struct lua_object {
22  struct lua_state *state;
23 };
24 
25 #define LUA_OBJECT_INIT { NULL }
26 extern const struct lua_object lua_object_init;
27 
28 void lua_object_initialize(struct lua_State *L);
29 bool lua_object_ownedbylua(struct lua_object *obj);
30 void lua_object_release(void *ptr, struct lua_object *obj);
31 
32 #endif /* HAKA_LUA_OBJECT_H */