mirror of https://github.com/lua/lua.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.0 KiB
88 lines
2.0 KiB
/*
|
|
** $Id: lstate.h,v 1.36 2000/08/08 20:42:07 roberto Exp roberto $
|
|
** Global State
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#ifndef lstate_h
|
|
#define lstate_h
|
|
|
|
#include <setjmp.h>
|
|
|
|
#include "lobject.h"
|
|
#include "lua.h"
|
|
#include "luadebug.h"
|
|
|
|
|
|
|
|
typedef TObject *StkId; /* index to stack elements */
|
|
|
|
|
|
/*
|
|
** marks for Reference array
|
|
*/
|
|
#define NONEXT -1 /* to end the free list */
|
|
#define HOLD -2
|
|
#define COLLECTED -3
|
|
#define LOCK -4
|
|
|
|
|
|
struct Ref {
|
|
TObject o;
|
|
int st; /* can be LOCK, HOLD, COLLECTED, or next (for free list) */
|
|
};
|
|
|
|
|
|
/*
|
|
** chain list of long jumps
|
|
*/
|
|
struct lua_longjmp {
|
|
jmp_buf b;
|
|
struct lua_longjmp *previous;
|
|
volatile int status; /* error code */
|
|
StkId base;
|
|
};
|
|
|
|
|
|
typedef struct stringtable {
|
|
int size;
|
|
lint32 nuse; /* number of elements */
|
|
TString **hash;
|
|
} stringtable;
|
|
|
|
|
|
|
|
struct lua_State {
|
|
/* thread-specific state */
|
|
StkId top; /* first free slot in the stack */
|
|
StkId stack; /* stack base */
|
|
StkId stack_last; /* last free slot in the stack */
|
|
int stacksize;
|
|
StkId Cbase; /* base for current C function */
|
|
struct lua_longjmp *errorJmp; /* current error recover point */
|
|
char *Mbuffer; /* global buffer */
|
|
size_t Mbuffbase; /* current first position of Mbuffer */
|
|
size_t Mbuffsize; /* size of Mbuffer */
|
|
size_t Mbuffnext; /* next position to fill in Mbuffer */
|
|
/* global state */
|
|
Proto *rootproto; /* list of all prototypes */
|
|
Closure *rootcl; /* list of all closures */
|
|
Hash *roottable; /* list of all tables */
|
|
stringtable strt; /* hash table for strings */
|
|
stringtable udt; /* hash table for udata */
|
|
Hash *gt; /* table for globals */
|
|
struct IM *IMtable; /* table for tag methods */
|
|
int last_tag; /* last used tag in IMtable */
|
|
struct Ref *refArray; /* locked objects */
|
|
int refSize; /* size of refArray */
|
|
int refFree; /* list of free positions in refArray */
|
|
unsigned long GCthreshold;
|
|
unsigned long nblocks; /* number of `blocks' currently allocated */
|
|
lua_Hook callhook;
|
|
lua_Hook linehook;
|
|
int allowhooks;
|
|
};
|
|
|
|
|
|
#endif
|
|
|
|
|