lstate.h File Reference

#include "lua.h"
#include "lobject.h"
#include "ltm.h"
#include "lzio.h"
#include <signal.h>

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Classes
struct	stringtable
struct	CallInfo
struct	global_State
struct	lua_State
union	GCUnion

Macros
#define	l_signalT   sig_atomic_t
#define	EXTRA_STACK   5
#define	BASIC_STACK_SIZE   (2*LUA_MINSTACK)
#define	KGC_NORMAL   0
#define	KGC_EMERGENCY   1 /* gc was forced by an allocation failure */
#define	CIST_OAH   (1<<0) /* original value of 'allowhook' */
#define	CIST_LUA   (1<<1) /* call is running a Lua function */
#define	CIST_HOOKED   (1<<2) /* call is running a debug hook */
#define	CIST_FRESH
#define	CIST_YPCALL   (1<<4) /* call is a yieldable protected call */
#define	CIST_TAIL   (1<<5) /* call was tail called */
#define	CIST_HOOKYIELD   (1<<6) /* last hook called yielded */
#define	CIST_LEQ   (1<<7) /* using __lt for __le */
#define	CIST_FIN   (1<<8) /* call is running a finalizer */
#define	isLua(ci)   ((ci)->callstatus & CIST_LUA)
#define	setoah(st, v)   ((st) = ((st) & ~CIST_OAH) | (v))
#define	getoah(st)   ((st) & CIST_OAH)
#define	G(L)   (L->l_G)
#define	cast_u(o)   cast(union GCUnion *, (o))
#define	gco2ts(o)   check_exp(novariant((o)->tt) == LUA_TSTRING, &((cast_u(o))->ts))
#define	gco2u(o)   check_exp((o)->tt == LUA_TUSERDATA, &((cast_u(o))->u))
#define	gco2lcl(o)   check_exp((o)->tt == LUA_TLCL, &((cast_u(o))->cl.l))
#define	gco2ccl(o)   check_exp((o)->tt == LUA_TCCL, &((cast_u(o))->cl.c))
#define	gco2cl(o)   check_exp(novariant((o)->tt) == LUA_TFUNCTION, &((cast_u(o))->cl))
#define	gco2t(o)   check_exp((o)->tt == LUA_TTABLE, &((cast_u(o))->h))
#define	gco2p(o)   check_exp((o)->tt == LUA_TPROTO, &((cast_u(o))->p))
#define	gco2th(o)   check_exp((o)->tt == LUA_TTHREAD, &((cast_u(o))->th))
#define	obj2gco(v)   check_exp(novariant((v)->tt) < LUA_TDEADKEY, (&(cast_u(v)->gc)))
#define	gettotalbytes(g)   cast(lu_mem, (g)->totalbytes + (g)->GCdebt)

Typedefs
typedef struct stringtable	stringtable
typedef struct CallInfo	CallInfo
typedef struct global_State	global_State

Functions
LUAI_FUNC void	luaE_setdebt (global_State *g, l_mem debt)
LUAI_FUNC void	luaE_freethread (lua_State *L, lua_State *L1)
LUAI_FUNC CallInfo *	luaE_extendCI (lua_State *L)
LUAI_FUNC void	luaE_freeCI (lua_State *L)
LUAI_FUNC void	luaE_shrinkCI (lua_State *L)

Macro Definition Documentation

BASIC_STACK_SIZE

#define BASIC_STACK_SIZE   (2*LUA_MINSTACK)

cast_u

#define cast_u

(

o

)

cast(union GCUnion *, (o))

CIST_FIN

#define CIST_FIN   (1<<8) /* call is running a finalizer */

CIST_FRESH

#define CIST_FRESH

Value:

(1<<3)  /* call is running on a fresh invocation
                                   of luaV_execute */

CIST_HOOKED

#define CIST_HOOKED   (1<<2) /* call is running a debug hook */

CIST_HOOKYIELD

#define CIST_HOOKYIELD   (1<<6) /* last hook called yielded */

CIST_LEQ

#define CIST_LEQ   (1<<7) /* using __lt for __le */

CIST_LUA

#define CIST_LUA   (1<<1) /* call is running a Lua function */

CIST_OAH

#define CIST_OAH   (1<<0) /* original value of 'allowhook' */

CIST_TAIL

#define CIST_TAIL   (1<<5) /* call was tail called */

CIST_YPCALL

#define CIST_YPCALL   (1<<4) /* call is a yieldable protected call */

EXTRA_STACK

#define EXTRA_STACK   5

G

#define G

(

L

)

(L->l_G)

gco2ccl

#define gco2ccl

(

o

)

check_exp((o)->tt == LUA_TCCL, &((cast_u(o))->cl.c))

gco2cl

#define gco2cl

(

o

)

check_exp(novariant((o)->tt) == LUA_TFUNCTION, &((cast_u(o))->cl))

gco2lcl

#define gco2lcl

(

o

)

check_exp((o)->tt == LUA_TLCL, &((cast_u(o))->cl.l))

gco2p

#define gco2p

(

o

)

check_exp((o)->tt == LUA_TPROTO, &((cast_u(o))->p))

gco2t

#define gco2t

(

o

)

check_exp((o)->tt == LUA_TTABLE, &((cast_u(o))->h))

gco2th

#define gco2th

(

o

)

check_exp((o)->tt == LUA_TTHREAD, &((cast_u(o))->th))

gco2ts

#define gco2ts

(

o

)

check_exp(novariant((o)->tt) == LUA_TSTRING, &((cast_u(o))->ts))

gco2u

#define gco2u

(

o

)

check_exp((o)->tt == LUA_TUSERDATA, &((cast_u(o))->u))

getoah

#define getoah

(

st

)

((st) & CIST_OAH)

gettotalbytes

#define gettotalbytes

(

g

)

cast(lu_mem, (g)->totalbytes + (g)->GCdebt)

isLua

#define isLua

(

ci

)

((ci)->callstatus & CIST_LUA)

KGC_EMERGENCY

#define KGC_EMERGENCY   1 /* gc was forced by an allocation failure */

KGC_NORMAL

#define KGC_NORMAL   0

l_signalT

#define l_signalT   sig_atomic_t

obj2gco

#define obj2gco

(

v

)

check_exp(novariant((v)->tt) < LUA_TDEADKEY, (&(cast_u(v)->gc)))

setoah

#define setoah	(		st,
			v
	)		((st) = ((st) & ~CIST_OAH) | (v))

Typedef Documentation

CallInfo

typedef struct CallInfo CallInfo

global_State

typedef struct global_State global_State

stringtable

typedef struct stringtable stringtable

Function Documentation

luaE_extendCI()

LUAI_FUNC CallInfo* luaE_extendCI

(

lua_State *

L

)

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luaE_freeCI()

LUAI_FUNC void luaE_freeCI

(

lua_State *

L

)

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luaE_freethread()

LUAI_FUNC void luaE_freethread	(	lua_State *	L,
		lua_State *	L1
	)

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luaE_setdebt()

LUAI_FUNC void luaE_setdebt	(	global_State *	g,
		l_mem	debt
	)

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luaE_shrinkCI()

LUAI_FUNC void luaE_shrinkCI

(

lua_State *

L

)

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