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better to keep GC state numbers sequential, to optimize switch in

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'singlestep'
This commit is contained in:
Roberto Ierusalimschy
2009-12-11 19:31:14 -02:00
parent a2a2abcba4
commit 8da245bfd2
3 changed files with 18 additions and 18 deletions
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16
lgc.c
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@@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 2.63 2009/11/26 11:39:20 roberto Exp roberto $
** $Id: lgc.c,v 2.64 2009/12/11 19:14:59 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@@ -786,12 +786,12 @@ void luaC_step (lua_State *L) {
/*
** advances the garbage collector until it reaches a "valid" state
** (defined by the caller)
** advances the garbage collector until it reaches a state allowed
** by 'statemask'
*/
void luaC_runtilstate (lua_State *L, int validstates) {
void luaC_runtilstate (lua_State *L, int statesmask) {
global_State *g = G(L);
while (!(g->gcstate & validstates))
while (!testbit(statesmask, g->gcstate))
singlestep(L);
}
@@ -811,13 +811,13 @@ void luaC_fullgc (lua_State *L, int isemergency) {
g->gcstate = GCSsweepstring;
}
/* finish any pending sweep phase */
luaC_runtilstate(L, ~(GCSsweepstring | GCSsweep));
luaC_runtilstate(L, ~bit2mask(GCSsweepstring, GCSsweep));
markroot(L); /* start a new collection */
/* run collector up to finalizers */
luaC_runtilstate(L, GCSfinalize);
luaC_runtilstate(L, bitmask(GCSfinalize));
g->gckind = KGC_NORMAL;
if (!isemergency) /* do not run finalizers during emergency GC */
luaC_runtilstate(L, ~GCSfinalize);
luaC_runtilstate(L, ~bitmask(GCSfinalize));
g->GCthreshold = (g->totalbytes/100) * g->gcpause;
}