1 /* $NetBSD: ldo.h,v 1.4 2015/10/08 13:21:00 mbalmer Exp $ */ 2 3 /* 4 ** Id: ldo.h,v 2.22 2015/05/22 17:48:19 roberto Exp 5 ** Stack and Call structure of Lua 6 ** See Copyright Notice in lua.h 7 */ 8 9 #ifndef ldo_h 10 #define ldo_h 11 12 13 #include "lobject.h" 14 #include "lstate.h" 15 #include "lzio.h" 16 17 18 #define luaD_checkstack(L,n) if (L->stack_last - L->top <= (n)) \ 19 luaD_growstack(L, n); else condmovestack(L); 20 21 22 #define incr_top(L) {L->top++; luaD_checkstack(L,0);} 23 24 #define savestack(L,p) ((char *)(p) - (char *)L->stack) 25 #define restorestack(L,n) ((TValue *)((char *)L->stack + (n))) 26 27 28 /* type of protected functions, to be ran by 'runprotected' */ 29 typedef void (*Pfunc) (lua_State *L, void *ud); 30 31 LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name, 32 const char *mode); 33 LUAI_FUNC void luaD_hook (lua_State *L, int event, int line); 34 LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults); 35 LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults, 36 int allowyield); 37 LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, 38 ptrdiff_t oldtop, ptrdiff_t ef); 39 LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult, int nres); 40 LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize); 41 LUAI_FUNC void luaD_growstack (lua_State *L, int n); 42 LUAI_FUNC void luaD_shrinkstack (lua_State *L); 43 44 LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode); 45 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud); 46 47 #endif 48 49