mirror of
https://github.com/lua/lua
synced 2024-12-05 10:52:07 +03:00
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
|
|
** $Id: ldo.h,v 1.55 2002/11/21 17:41:25 roberto Exp roberto $
|
|
** Stack and Call structure of Lua
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#ifndef ldo_h
|
|
#define ldo_h
|
|
|
|
|
|
#include "lobject.h"
|
|
#include "lstate.h"
|
|
#include "lzio.h"
|
|
|
|
|
|
/*
|
|
** macro to control inclusion of some hard tests on stack reallocation
|
|
*/
|
|
#ifndef HARDSTACKTESTS
|
|
#define condhardstacktests(x) { /* empty */ }
|
|
#else
|
|
#define condhardstacktests(x) x
|
|
#endif
|
|
|
|
|
|
#define luaD_checkstack(L,n) \
|
|
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TObject)) \
|
|
luaD_growstack(L, n); \
|
|
else condhardstacktests(luaD_reallocstack(L, L->stacksize));
|
|
|
|
|
|
#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
|
|
|
|
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
|
|
#define restorestack(L,n) ((TObject *)((char *)L->stack + (n)))
|
|
|
|
#define saveci(L,p) ((char *)(p) - (char *)L->base_ci)
|
|
#define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n)))
|
|
|
|
|
|
/* type of protected functions, to be ran by `runprotected' */
|
|
typedef void (*Pfunc) (lua_State *L, void *ud);
|
|
|
|
void luaD_resetprotection (lua_State *L);
|
|
int luaD_protectedparser (lua_State *L, ZIO *z, int bin);
|
|
void luaD_callhook (lua_State *L, int event, int line);
|
|
StkId luaD_precall (lua_State *L, StkId func);
|
|
void luaD_call (lua_State *L, StkId func, int nResults);
|
|
int luaD_pcall (lua_State *L, Pfunc func, void *u,
|
|
ptrdiff_t oldtop, ptrdiff_t ef);
|
|
void luaD_poscall (lua_State *L, int wanted, StkId firstResult);
|
|
void luaD_reallocCI (lua_State *L, int newsize);
|
|
void luaD_reallocstack (lua_State *L, int newsize);
|
|
void luaD_growstack (lua_State *L, int n);
|
|
|
|
void luaD_throw (lua_State *L, int errcode);
|
|
int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
|
|
|
|
|
|
#endif
|