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cannot sweep main thread in sweepstring phase

This commit is contained in:
Roberto Ierusalimschy 2010-04-05 11:15:35 -03:00
parent f80ff7a336
commit a09c8d7beb
1 changed files with 16 additions and 7 deletions
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23
lgc.c
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@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 2.75 2010/03/29 17:43:14 roberto Exp roberto $
** $Id: lgc.c,v 2.76 2010/04/02 14:37:41 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -778,25 +778,34 @@ static l_mem singlestep (lua_State *L) {
sweepwholelist(L, &g->strt.hash[g->sweepstrgc++]);
}
else { /* no more strings to sweep */
/* sweep main thread */
sweeplist(L, cast(GCObject **, &g->mainthread), 1);
g->sweepgc = &g->udgc; /* prepare to sweep userdata */
g->gcstate = GCSsweepudata;
}
return GCSWEEPCOST;
}
case GCSsweepudata:
case GCSsweep: {
case GCSsweepudata: {
if (*g->sweepgc) {
g->sweepgc = sweeplist(L, g->sweepgc, GCSWEEPMAX);
return GCSWEEPMAX*GCSWEEPCOST;
}
else { /* go to next phase */
g->sweepgc = &g->allgc; /* useless (but harmless) in GCSsweep case */
g->gcstate = (g->gcstate == GCSsweep) ? GCSfinalize : GCSsweep;
g->sweepgc = &g->allgc;
g->gcstate = GCSsweep;
return 0;
}
}
case GCSsweep: {
if (*g->sweepgc) {
g->sweepgc = sweeplist(L, g->sweepgc, GCSWEEPMAX);
return GCSWEEPMAX*GCSWEEPCOST;
}
else {
/* sweep main thread */
sweeplist(L, cast(GCObject **, &g->mainthread), 1);
g->gcstate = GCSfinalize; /* go to next phase */
return GCSWEEPCOST;
}
}
case GCSfinalize: {
if (g->tobefnz) {
GCTM(L, 1);