From 9aec500a2691d2b13c307d143868c8a4fab33220 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 17 Jul 2014 14:27:49 -0300
Subject: no need for field 'gch' anymore
---
lgc.c | 64 +++++++++++++++++++++++++++++++--------------------------------
lgc.h | 16 ++++++++--------
lobject.h | 10 ++++------
lstate.h | 26 +++++++++-----------------
ltests.c | 36 +++++++++++++++++------------------
5 files changed, 71 insertions(+), 81 deletions(-)
diff --git a/lgc.c b/lgc.c
index 495eb4ac..24278dab 100644
--- a/lgc.c
+++ b/lgc.c
@@ -1,5 +1,5 @@
/*
-** $Id: lgc.c,v 2.183 2014/05/25 19:08:32 roberto Exp roberto $
+** $Id: lgc.c,v 2.184 2014/06/30 19:48:08 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@@ -62,10 +62,10 @@
*/
#define maskcolors (~(bitmask(BLACKBIT) | WHITEBITS))
#define makewhite(g,x) \
- (gch(x)->marked = cast_byte((gch(x)->marked & maskcolors) | luaC_white(g)))
+ (x->marked = cast_byte((x->marked & maskcolors) | luaC_white(g)))
-#define white2gray(x) resetbits(gch(x)->marked, WHITEBITS)
-#define black2gray(x) resetbit(gch(x)->marked, BLACKBIT)
+#define white2gray(x) resetbits(x->marked, WHITEBITS)
+#define black2gray(x) resetbit(x->marked, BLACKBIT)
#define valiswhite(x) (iscollectable(x) && iswhite(gcvalue(x)))
@@ -141,7 +141,7 @@ void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v) {
global_State *g = G(L);
lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o));
lua_assert(g->gcstate != GCSpause);
- lua_assert(gch(o)->tt != LUA_TTABLE); /* tables use a back barrier */
+ lua_assert(o->tt != LUA_TTABLE); /* tables use a back barrier */
if (keepinvariant(g)) /* must keep invariant? */
reallymarkobject(g, v); /* restore invariant */
else { /* sweep phase */
@@ -159,7 +159,7 @@ void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v) {
*/
void luaC_barrierback_ (lua_State *L, GCObject *o) {
global_State *g = G(L);
- lua_assert(isblack(o) && !isdead(g, o) && gch(o)->tt == LUA_TTABLE);
+ lua_assert(isblack(o) && !isdead(g, o) && o->tt == LUA_TTABLE);
black2gray(o); /* make object gray (again) */
gco2t(o)->gclist = g->grayagain;
g->grayagain = o;
@@ -185,8 +185,8 @@ void luaC_fix (lua_State *L, GCObject *o) {
global_State *g = G(L);
lua_assert(g->allgc == o); /* object must be 1st in 'allgc' list! */
white2gray(o); /* they will be gray forever */
- g->allgc = o->gch.next; /* remove object from 'allgc' list */
- o->gch.next = g->fixedgc; /* link it to 'fixedgc' list */
+ g->allgc = o->next; /* remove object from 'allgc' list */
+ o->next = g->fixedgc; /* link it to 'fixedgc' list */
g->fixedgc = o;
}
@@ -198,9 +198,9 @@ void luaC_fix (lua_State *L, GCObject *o) {
GCObject *luaC_newobj (lua_State *L, int tt, size_t sz) {
global_State *g = G(L);
GCObject *o = cast(GCObject *, luaM_newobject(L, novariant(tt), sz));
- gch(o)->marked = luaC_white(g);
- gch(o)->tt = tt;
- gch(o)->next = g->allgc;
+ o->marked = luaC_white(g);
+ o->tt = tt;
+ o->next = g->allgc;
g->allgc = o;
return o;
}
@@ -225,7 +225,7 @@ GCObject *luaC_newobj (lua_State *L, int tt, size_t sz) {
static void reallymarkobject (global_State *g, GCObject *o) {
reentry:
white2gray(o);
- switch (gch(o)->tt) {
+ switch (o->tt) {
case LUA_TSHRSTR:
case LUA_TLNGSTR: {
gray2black(o);
@@ -288,7 +288,7 @@ static void markmt (global_State *g) {
*/
static void markbeingfnz (global_State *g) {
GCObject *o;
- for (o = g->tobefnz; o != NULL; o = gch(o)->next)
+ for (o = g->tobefnz; o != NULL; o = o->next)
markobject(g, o);
}
@@ -528,7 +528,7 @@ static void propagatemark (global_State *g) {
GCObject *o = g->gray;
lua_assert(isgray(o));
gray2black(o);
- switch (gch(o)->tt) {
+ switch (o->tt) {
case LUA_TTABLE: {
Table *h = gco2t(o);
g->gray = h->gclist; /* remove from 'gray' list */
@@ -685,7 +685,7 @@ static void freeLclosure (lua_State *L, LClosure *cl) {
static void freeobj (lua_State *L, GCObject *o) {
- switch (gch(o)->tt) {
+ switch (o->tt) {
case LUA_TPROTO: luaF_freeproto(L, gco2p(o)); break;
case LUA_TLCL: {
freeLclosure(L, gco2lcl(o));
@@ -727,14 +727,14 @@ static GCObject **sweeplist (lua_State *L, GCObject **p, lu_mem count) {
int white = luaC_white(g); /* current white */
while (*p != NULL && count-- > 0) {
GCObject *curr = *p;
- int marked = gch(curr)->marked;
+ int marked = curr->marked;
if (isdeadm(ow, marked)) { /* is 'curr' dead? */
- *p = gch(curr)->next; /* remove 'curr' from list */
+ *p = curr->next; /* remove 'curr' from list */
freeobj(L, curr); /* erase 'curr' */
}
else { /* update marks */
- gch(curr)->marked = cast_byte((marked & maskcolors) | white);
- p = &gch(curr)->next; /* go to next element */
+ curr->marked = cast_byte((marked & maskcolors) | white);
+ p = &curr->next; /* go to next element */
}
}
return (*p == NULL) ? NULL : p;
@@ -781,10 +781,10 @@ static void checkSizes (lua_State *L, global_State *g) {
static GCObject *udata2finalize (global_State *g) {
GCObject *o = g->tobefnz; /* get first element */
lua_assert(tofinalize(o));
- g->tobefnz = gch(o)->next; /* remove it from 'tobefnz' list */
- gch(o)->next = g->allgc; /* return it to 'allgc' list */
+ g->tobefnz = o->next; /* remove it from 'tobefnz' list */
+ o->next = g->allgc; /* return it to 'allgc' list */
g->allgc = o;
- resetbit(gch(o)->marked, FINALIZEDBIT); /* object is "normal" again */
+ resetbit(o->marked, FINALIZEDBIT); /* object is "normal" again */
if (issweepphase(g))
makewhite(g, o); /* "sweep" object */
return o;
@@ -859,7 +859,7 @@ static void callallpendingfinalizers (lua_State *L, int propagateerrors) {
*/
static GCObject **findlast (GCObject **p) {
while (*p != NULL)
- p = &gch(*p)->next;
+ p = &(*p)->next;
return p;
}
@@ -875,12 +875,12 @@ static void separatetobefnz (global_State *g, int all) {
while ((curr = *p) != NULL) { /* traverse all finalizable objects */
lua_assert(tofinalize(curr));
if (!(iswhite(curr) || all)) /* not being collected? */
- p = &gch(curr)->next; /* don't bother with it */
+ p = &curr->next; /* don't bother with it */
else {
- *p = gch(curr)->next; /* remove 'curr' from "fin" list */
- gch(curr)->next = *lastnext; /* link at the end of 'tobefnz' list */
+ *p = curr->next; /* remove 'curr' from "fin" list */
+ curr->next = *lastnext; /* link at the end of 'tobefnz' list */
*lastnext = curr;
- lastnext = &gch(curr)->next;
+ lastnext = &curr->next;
}
}
}
@@ -899,15 +899,15 @@ void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt) {
GCObject **p;
if (issweepphase(g)) {
makewhite(g, o); /* "sweep" object 'o' */
- if (g->sweepgc == &o->gch.next) /* should not remove 'sweepgc' object */
+ if (g->sweepgc == &o->next) /* should not remove 'sweepgc' object */
g->sweepgc = sweeptolive(L, g->sweepgc, NULL); /* change 'sweepgc' */
}
/* search for pointer pointing to 'o' */
- for (p = &g->allgc; *p != o; p = &gch(*p)->next) { /* empty */ }
- *p = o->gch.next; /* remove 'o' from 'allgc' list */
- o->gch.next = g->finobj; /* link it in "fin" list */
+ for (p = &g->allgc; *p != o; p = &(*p)->next) { /* empty */ }
+ *p = o->next; /* remove 'o' from 'allgc' list */
+ o->next = g->finobj; /* link it in "fin" list */
g->finobj = o;
- l_setbit(o->gch.marked, FINALIZEDBIT); /* mark it as such */
+ l_setbit(o->marked, FINALIZEDBIT); /* mark it as such */
}
}
diff --git a/lgc.h b/lgc.h
index c94b91ce..1d0403f3 100644
--- a/lgc.h
+++ b/lgc.h
@@ -1,5 +1,5 @@
/*
-** $Id: lgc.h,v 2.81 2014/02/18 13:46:26 roberto Exp roberto $
+** $Id: lgc.h,v 2.82 2014/03/19 18:51:16 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@@ -84,19 +84,19 @@
#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT)
-#define iswhite(x) testbits((x)->gch.marked, WHITEBITS)
-#define isblack(x) testbit((x)->gch.marked, BLACKBIT)
+#define iswhite(x) testbits((x)->marked, WHITEBITS)
+#define isblack(x) testbit((x)->marked, BLACKBIT)
#define isgray(x) /* neither white nor black */ \
- (!testbits((x)->gch.marked, WHITEBITS | bitmask(BLACKBIT)))
+ (!testbits((x)->marked, WHITEBITS | bitmask(BLACKBIT)))
-#define tofinalize(x) testbit((x)->gch.marked, FINALIZEDBIT)
+#define tofinalize(x) testbit((x)->marked, FINALIZEDBIT)
#define otherwhite(g) ((g)->currentwhite ^ WHITEBITS)
#define isdeadm(ow,m) (!(((m) ^ WHITEBITS) & (ow)))
-#define isdead(g,v) isdeadm(otherwhite(g), (v)->gch.marked)
+#define isdead(g,v) isdeadm(otherwhite(g), (v)->marked)
-#define changewhite(x) ((x)->gch.marked ^= WHITEBITS)
-#define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT)
+#define changewhite(x) ((x)->marked ^= WHITEBITS)
+#define gray2black(x) l_setbit((x)->marked, BLACKBIT)
#define luaC_white(g) cast(lu_byte, (g)->currentwhite & WHITEBITS)
diff --git a/lobject.h b/lobject.h
index d55a347f..05008668 100644
--- a/lobject.h
+++ b/lobject.h
@@ -1,5 +1,5 @@
/*
-** $Id: lobject.h,v 2.94 2014/06/19 18:39:36 roberto Exp roberto $
+** $Id: lobject.h,v 2.95 2014/07/17 17:09:50 roberto Exp roberto $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@@ -85,9 +85,7 @@ typedef struct GCObject GCObject;
** Common type has only the common header
*/
struct GCObject {
- struct {
- CommonHeader;
- } gch;
+ CommonHeader;
};
@@ -179,7 +177,7 @@ typedef struct lua_TValue TValue;
/* Macros for internal tests */
-#define righttt(obj) (ttype(obj) == gcvalue(obj)->gch.tt)
+#define righttt(obj) (ttype(obj) == gcvalue(obj)->tt)
#define checkliveness(g,obj) \
lua_longassert(!iscollectable(obj) || \
@@ -208,7 +206,7 @@ typedef struct lua_TValue TValue;
#define setgcovalue(L,obj,x) \
{ TValue *io = (obj); GCObject *i_g=(x); \
- val_(io).gc = i_g; settt_(io, ctb(gch(i_g)->tt)); }
+ val_(io).gc = i_g; settt_(io, ctb(i_g->tt)); }
#define setsvalue(L,obj,x) \
{ TValue *io = (obj); TString *x_ = (x); \
diff --git a/lstate.h b/lstate.h
index e7feb099..dafaefea 100644
--- a/lstate.h
+++ b/lstate.h
@@ -1,5 +1,5 @@
/*
-** $Id: lstate.h,v 2.108 2014/07/17 13:53:37 roberto Exp roberto $
+** $Id: lstate.h,v 2.109 2014/07/17 17:09:50 roberto Exp roberto $
** Global State
** See Copyright Notice in lua.h
*/
@@ -183,29 +183,21 @@ union GCUnion {
};
-#define gch(o) (&(o)->gch)
-
#define cast_u(o) cast(union GCUnion *, (o))
/* macros to convert a GCObject into a specific value */
#define rawgco2ts(o) \
- check_exp(novariant((o)->gch.tt) == LUA_TSTRING, &((cast_u(o))->ts))
+ check_exp(novariant((o)->tt) == LUA_TSTRING, &((cast_u(o))->ts))
#define gco2ts(o) (&rawgco2ts(o)->tsv)
-#define rawgco2u(o) \
- check_exp((o)->gch.tt == LUA_TUSERDATA, &((cast_u(o))->u))
+#define rawgco2u(o) check_exp((o)->tt == LUA_TUSERDATA, &((cast_u(o))->u))
#define gco2u(o) (&rawgco2u(o)->uv)
-#define gco2lcl(o) \
- check_exp((o)->gch.tt == LUA_TLCL, &((cast_u(o))->cl.l))
-#define gco2ccl(o) \
- check_exp((o)->gch.tt == LUA_TCCL, &((cast_u(o))->cl.c))
+#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)->gch.tt) == LUA_TFUNCTION, &((cast_u(o))->cl))
-#define gco2t(o) \
- check_exp((o)->gch.tt == LUA_TTABLE, &((cast_u(o))->h))
-#define gco2p(o) \
- check_exp((o)->gch.tt == LUA_TPROTO, &((cast_u(o))->p))
-#define gco2th(o) \
- check_exp((o)->gch.tt == LUA_TTHREAD, &((cast_u(o))->th))
+ 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))
/* macro to convert any Lua object into a GCObject */
diff --git a/ltests.c b/ltests.c
index 803b3be2..f054b2f0 100644
--- a/ltests.c
+++ b/ltests.c
@@ -1,5 +1,5 @@
/*
-** $Id: ltests.c,v 2.175 2014/07/16 14:51:36 roberto Exp roberto $
+** $Id: ltests.c,v 2.176 2014/07/17 13:53:37 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h
*/
@@ -190,8 +190,8 @@ static int testobjref1 (global_State *g, GCObject *f, GCObject *t) {
static void printobj (global_State *g, GCObject *o) {
printf("||%s(%p)-%c(%02X)||",
- ttypename(novariant(gch(o)->tt)), (void *)o,
- isdead(g,o)?'d':isblack(o)?'b':iswhite(o)?'w':'g', gch(o)->marked);
+ ttypename(novariant(o->tt)), (void *)o,
+ isdead(g,o)?'d':isblack(o)?'b':iswhite(o)?'w':'g', o->marked);
}
@@ -316,7 +316,7 @@ static void checkobject (global_State *g, GCObject *o, int maybedead) {
lua_assert(maybedead);
else {
lua_assert(g->gcstate != GCSpause || iswhite(o));
- switch (gch(o)->tt) {
+ switch (o->tt) {
case LUA_TUSERDATA: {
TValue uservalue;
Table *mt = gco2u(o)->metatable;
@@ -362,9 +362,9 @@ static void checkgraylist (global_State *g, GCObject *o) {
((void)g); /* better to keep it available if we need to print an object */
while (o) {
lua_assert(isgray(o));
- lua_assert(!testbit(o->gch.marked, TESTGRAYBIT));
- l_setbit(o->gch.marked, TESTGRAYBIT);
- switch (gch(o)->tt) {
+ lua_assert(!testbit(o->marked, TESTGRAYBIT));
+ l_setbit(o->marked, TESTGRAYBIT);
+ switch (o->tt) {
case LUA_TTABLE: o = gco2t(o)->gclist; break;
case LUA_TLCL: o = gco2lcl(o)->gclist; break;
case LUA_TCCL: o = gco2ccl(o)->gclist; break;
@@ -391,12 +391,12 @@ static void markgrays (global_State *g) {
static void checkgray (global_State *g, GCObject *o) {
- for (; o != NULL; o = gch(o)->next) {
+ for (; o != NULL; o = o->next) {
if (isgray(o)) {
- lua_assert(!keepinvariant(g) || testbit(o->gch.marked, TESTGRAYBIT));
- resetbit(o->gch.marked, TESTGRAYBIT);
+ lua_assert(!keepinvariant(g) || testbit(o->marked, TESTGRAYBIT));
+ resetbit(o->marked, TESTGRAYBIT);
}
- lua_assert(!testbit(o->gch.marked, TESTGRAYBIT));
+ lua_assert(!testbit(o->marked, TESTGRAYBIT));
}
}
@@ -415,29 +415,29 @@ int lua_checkmemory (lua_State *L) {
lua_assert(g->sweepgc == NULL || issweepphase(g));
markgrays(g);
/* check 'fixedgc' list */
- for (o = g->fixedgc; o != NULL; o = gch(o)->next) {
- lua_assert(gch(o)->tt == LUA_TSHRSTR && isgray(o));
+ for (o = g->fixedgc; o != NULL; o = o->next) {
+ lua_assert(o->tt == LUA_TSHRSTR && isgray(o));
}
/* check 'allgc' list */
checkgray(g, g->allgc);
maybedead = (GCSatomic < g->gcstate && g->gcstate <= GCSswpallgc);
- for (o = g->allgc; o != NULL; o = gch(o)->next) {
+ for (o = g->allgc; o != NULL; o = o->next) {
checkobject(g, o, maybedead);
lua_assert(!tofinalize(o));
}
/* check 'finobj' list */
checkgray(g, g->finobj);
- for (o = g->finobj; o != NULL; o = gch(o)->next) {
+ for (o = g->finobj; o != NULL; o = o->next) {
checkobject(g, o, 0);
lua_assert(tofinalize(o));
- lua_assert(gch(o)->tt == LUA_TUSERDATA || gch(o)->tt == LUA_TTABLE);
+ lua_assert(o->tt == LUA_TUSERDATA || o->tt == LUA_TTABLE);
}
/* check 'tobefnz' list */
checkgray(g, g->tobefnz);
- for (o = g->tobefnz; o != NULL; o = gch(o)->next) {
+ for (o = g->tobefnz; o != NULL; o = o->next) {
checkobject(g, o, 0);
lua_assert(tofinalize(o));
- lua_assert(gch(o)->tt == LUA_TUSERDATA || gch(o)->tt == LUA_TTABLE);
+ lua_assert(o->tt == LUA_TUSERDATA || o->tt == LUA_TTABLE);
}
return 0;
}
--
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