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Add configurable extra data at the end of lua_State

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Petri Häkkinen 2021-11-23 14:18:37 +02:00
parent 6958716ccd
commit ed6491a087
3 changed files with 11 additions and 0 deletions
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3
VM/include/luaconf.h
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@ -126,3 +126,6 @@
#define LUA_VECTOR_SIZE 3 /* must be 3 or 4 */ #define LUA_VECTOR_SIZE 3 /* must be 3 or 4 */
#define LUA_EXTRA_SIZE LUA_VECTOR_SIZE - 2 #define LUA_EXTRA_SIZE LUA_VECTOR_SIZE - 2
/* size of optional extra data in bytes added at the end of lua_State. */
#define LUA_STATE_EXTRA 0

5
VM/src/lstate.cpp
View file

@ -10,6 +10,8 @@
#include "ldo.h" #include "ldo.h"
#include "ldebug.h" #include "ldebug.h"
#include <string.h>
/* /*
** Main thread combines a thread state and the global state ** Main thread combines a thread state and the global state
*/ */
@ -78,6 +80,9 @@ static void preinit_state(lua_State* L, global_State* g)
L->stackstate = 0; L->stackstate = 0;
L->activememcat = 0; L->activememcat = 0;
L->userdata = NULL; L->userdata = NULL;
#if LUA_STATE_EXTRA > 0
memset(L->extra, 0, LUA_STATE_EXTRA);
#endif
setnilvalue(gt(L)); setnilvalue(gt(L));
} }

3
VM/src/lstate.h
View file

@ -237,6 +237,9 @@ struct lua_State
TString* namecall; /* when invoked from Luau using NAMECALL, what method do we need to invoke? */ TString* namecall; /* when invoked from Luau using NAMECALL, what method do we need to invoke? */
void* userdata; void* userdata;
#if LUA_STATE_EXTRA > 0
char extra[LUA_STATE_EXTRA];
#endif
}; };
// clang-format on // clang-format on