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Roberto Ierusalimschy 2002-09-02 16:54:49 -03:00
parent 2c670baf24
commit 4964e7c8a0
4 changed files with 26 additions and 32 deletions
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24
lgc.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 1.147 2002/08/16 20:00:28 roberto Exp roberto $
** $Id: lgc.c,v 1.148 2002/08/30 19:09:21 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -48,10 +48,15 @@ typedef struct GCState {
static void reallymarkobject (GCState *st, GCObject *o);
#define markobject(st,o) \
if (iscollectable(o)) reallymarkobject(st,(o)->value.gc)
#define markobject(st,o) { checkconsistency(o); \
if (iscollectable(o) && !ismarked(gcvalue(o))) reallymarkobject(st,gcvalue(o)); }
#define marktable(st,t) reallymarkobject(st, cast(GCObject *, (t)))
#define condmarkobject(st,o,c) { checkconsistency(o); \
if (iscollectable(o) && !ismarked(gcvalue(o)) && (c)) \
reallymarkobject(st,gcvalue(o)); }
#define marktable(st,t) { if (!ismarked(cast(GCObject *, t))) \
reallymarkobject(st, cast(GCObject *, (t))); }
static void markproto (Proto *f) {
@ -96,7 +101,6 @@ static void markclosure (GCState *st, Closure *cl) {
static void reallymarkobject (GCState *st, GCObject *o) {
if (ismarked(o)) return;
mark(o);
switch (o->gch.tt) {
case LUA_TFUNCTION: {
@ -157,10 +161,8 @@ static void traversestacks (GCState *st) {
static void marktmu (GCState *st) {
GCObject *u;
for (u = G(st->L)->tmudata; u; u = u->uv.next) {
mark(u);
marktable(st, (&u->u)->uv.metatable);
}
for (u = G(st->L)->tmudata; u; u = u->uv.next)
reallymarkobject(st, u);
}
@ -221,8 +223,8 @@ static void traversetable (GCState *st, Table *h) {
Node *n = node(h, i);
if (!ttisnil(val(n))) {
lua_assert(!ttisnil(key(n)));
if (!weakkey) markobject(st, key(n));
if (!weakvalue) markobject(st, val(n));
condmarkobject(st, key(n), !weakkey);
condmarkobject(st, val(n), !weakvalue);
}
}
}

18
lobject.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lobject.c,v 1.85 2002/07/17 16:25:13 roberto Exp roberto $
** $Id: lobject.c,v 1.86 2002/08/07 14:35:55 roberto Exp roberto $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
@ -58,25 +58,17 @@ int luaO_log2 (unsigned int x) {
int luaO_rawequalObj (const TObject *t1, const TObject *t2) {
if (ttype(t1) != ttype(t2)) return 0;
switch (ttype(t1)) {
case LUA_TNUMBER:
return nvalue(t1) == nvalue(t2);
case LUA_TNIL:
return 1;
case LUA_TSTRING:
return tsvalue(t1) == tsvalue(t2);
case LUA_TBOOLEAN:
return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */
case LUA_TLIGHTUSERDATA:
return pvalue(t1) == pvalue(t2);
case LUA_TUSERDATA:
return uvalue(t1) == uvalue(t2);
case LUA_TTABLE:
return hvalue(t1) == hvalue(t2);
case LUA_TFUNCTION:
return clvalue(t1) == clvalue(t2);
case LUA_TNUMBER:
return nvalue(t1) == nvalue(t2);
default:
return gcvalue(t1) == gcvalue(t2);
}
lua_assert(0);
return 0; /* to avoid warnings */
}

6
lobject.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lobject.h,v 1.143 2002/08/16 14:45:55 roberto Exp roberto $
** $Id: lobject.h,v 1.144 2002/08/30 19:09:21 roberto Exp roberto $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@ -67,6 +67,7 @@ typedef struct lua_TObject {
/* Macros to access values */
#define ttype(o) ((o)->tt)
#define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc)
#define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p)
#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n)
#define tsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts)
@ -113,6 +114,9 @@ typedef struct lua_TObject {
#define setnilvalue(obj) ((obj)->tt=LUA_TNIL)
/*
** for internal debug only
*/
#define checkconsistency(obj) \
lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt))

10
ltable.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 1.117 2002/08/16 14:45:55 roberto Exp roberto $
** $Id: ltable.c,v 1.118 2002/08/30 19:09:21 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@ -83,12 +83,8 @@ Node *luaH_mainposition (const Table *t, const TObject *key) {
return hashboolean(t, bvalue(key));
case LUA_TLIGHTUSERDATA:
return hashpointer(t, pvalue(key));
case LUA_TUSERDATA:
return hashpointer(t, uvalue(key));
case LUA_TFUNCTION:
return hashpointer(t, clvalue(key));
case LUA_TTABLE:
return hashpointer(t, hvalue(key));
default:
return hashpointer(t, gcvalue(key));
}
lua_assert(0);
return 0; /* to avoid warnings */