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src/lj_udata.c - luajit-2.0-src

Functions defined

Macros defined

Source code

  1. /*
  2. ** Userdata handling.
  3. ** Copyright (C) 2005-2015 Mike Pall. See Copyright Notice in luajit.h
  4. */

  6. ‌#define lj_udata_c
  7. ‌#define LUA_CORE

  9. #include "lj_obj.h"
  10. #include "lj_gc.h"
  11. #include "lj_udata.h"

  13. ‌GCudata *lj_udata_new(lua_State *L, MSize sz, GCtab *env)
  14. {
  15.   GCudata *ud = lj_mem_newt(L, sizeof(GCudata) + sz, GCudata);
  16.   global_State *g = G(L);
  17.   newwhite(g, ud);  /* Not finalized. */
  18.   ud->gct = ~LJ_TUDATA;
  19.   ud->udtype = UDTYPE_USERDATA;
  20.   ud->len = sz;
  21.   /* NOBARRIER: The GCudata is new (marked white). */
  22.   setgcrefnull(ud->metatable);
  23.   setgcref(ud->env, obj2gco(env));
  24.   /* Chain to userdata list (after main thread). */
  25.   setgcrefr(ud->nextgc, mainthread(g)->nextgc);
  26.   setgcref(mainthread(g)->nextgc, obj2gco(ud));
  27.   return ud;
  28. }

  30. ‌void LJ_FASTCALL lj_udata_free(global_State *g, GCudata *ud)
  31. {
  32.   lj_mem_free(g, ud, sizeudata(ud));
  33. }

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