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| 1 /* |
| 2 ** $Id: ldo.h,v 2.20 2011/11/29 15:55:08 roberto Exp $ |
| 3 ** Stack and Call structure of Lua |
| 4 ** See Copyright Notice in lua.h |
| 5 */ |
| 6 |
| 7 #ifndef ldo_h |
| 8 #define ldo_h |
| 9 |
| 10 |
| 11 #include "lobject.h" |
| 12 #include "lstate.h" |
| 13 #include "lzio.h" |
| 14 |
| 15 |
| 16 #define luaD_checkstack(L,n) if (L->stack_last - L->top <= (n)) \ |
| 17 luaD_growstack(L, n); else condmovestack(L); |
| 18 |
| 19 |
| 20 #define incr_top(L) {L->top++; luaD_checkstack(L,0);} |
| 21 |
| 22 #define savestack(L,p) ((char *)(p) - (char *)L->stack) |
| 23 #define restorestack(L,n) ((TValue *)((char *)L->stack + (n))) |
| 24 |
| 25 |
| 26 /* type of protected functions, to be ran by `runprotected' */ |
| 27 typedef void (*Pfunc) (lua_State *L, void *ud); |
| 28 |
| 29 LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name, |
| 30 const char *mode); |
| 31 LUAI_FUNC void luaD_hook (lua_State *L, int event, int line); |
| 32 LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults); |
| 33 LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults, |
| 34 int allowyield); |
| 35 LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, |
| 36 ptrdiff_t oldtop, ptrdiff_t ef); |
| 37 LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult); |
| 38 LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize); |
| 39 LUAI_FUNC void luaD_growstack (lua_State *L, int n); |
| 40 LUAI_FUNC void luaD_shrinkstack (lua_State *L); |
| 41 |
| 42 LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode); |
| 43 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud); |
| 44 |
| 45 #endif |
| 46 |
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