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Major collections done incrementally

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Major collections do not need to "stop the world". Still pending:
criteria for shifts minor-major, shifts generational-incremental.
This commit is contained in:
Roberto Ierusalimschy
2023-12-06 10:49:56 -03:00
parent 74b4013538
commit 789e7acdea
4 changed files with 80 additions and 75 deletions
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6
ltests.c
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@@ -297,7 +297,7 @@ static int testobjref1 (global_State *g, GCObject *f, GCObject *t) {
if (isdead(g,t)) return 0;
if (issweepphase(g))
return 1; /* no invariants */
else if (g->gckind != KGC_GEN)
else if (g->gckind != KGC_GENMINOR)
return !(isblack(f) && iswhite(t)); /* basic incremental invariant */
else { /* generational mode */
if ((getage(f) == G_OLD && isblack(f)) && !isold(t))
@@ -519,7 +519,7 @@ static void checkobject (global_State *g, GCObject *o, int maybedead,
assert(maybedead);
else {
assert(g->gcstate != GCSpause || iswhite(o));
if (g->gckind == KGC_GEN) { /* generational mode? */
if (g->gckind == KGC_GENMINOR) { /* generational mode? */
assert(getage(o) >= listage);
if (isold(o)) {
assert(!iswhite(o));
@@ -953,7 +953,7 @@ static int gc_state (lua_State *L) {
}
else {
global_State *g = G(L);
if (G(L)->gckind == KGC_GEN)
if (G(L)->gckind != KGC_INC)
luaL_error(L, "cannot change states in generational mode");
lua_lock(L);
if (option < g->gcstate) { /* must cross 'pause'? */