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source: code/branches/ceguilua/src/lua/ldo.h @ 2126

Last change on this file since 2126 was 1806, checked in by rgrieder, 16 years ago

added single 5.1.3 directory for lua since CEGUILua 0.5 can also build against lua 5.1

  • Property svn:eol-style set to native
File size: 1.9 KB
Line 
1/*
2** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 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)    \
17  if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
18    luaD_growstack(L, n); \
19  else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
20
21
22#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
23
24#define savestack(L,p)          ((char *)(p) - (char *)L->stack)
25#define restorestack(L,n)       ((TValue *)((char *)L->stack + (n)))
26
27#define saveci(L,p)             ((char *)(p) - (char *)L->base_ci)
28#define restoreci(L,n)          ((CallInfo *)((char *)L->base_ci + (n)))
29
30
31/* results from luaD_precall */
32#define PCRLUA          0       /* initiated a call to a Lua function */
33#define PCRC            1       /* did a call to a C function */
34#define PCRYIELD        2       /* C funtion yielded */
35
36
37/* type of protected functions, to be ran by `runprotected' */
38typedef void (*Pfunc) (lua_State *L, void *ud);
39
40LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
41LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
42LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
43LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
44LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
45                                        ptrdiff_t oldtop, ptrdiff_t ef);
46LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
47LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
48LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
49LUAI_FUNC void luaD_growstack (lua_State *L, int n);
50
51LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
52LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
53
54LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
55
56#endif
57
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