ba8b5c17 |
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 | |