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new macro 'resetoldbit'

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This commit is contained in:
Roberto Ierusalimschy
2010-05-10 13:46:49 -03:00
parent a48e330f37
commit c006f085d9
2 changed files with 9 additions and 7 deletions
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4
lgc.h
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@@ -1,5 +1,5 @@
/*
** $Id: lgc.h,v 2.38 2010/05/07 18:08:05 roberto Exp roberto $
** $Id: lgc.h,v 2.39 2010/05/07 18:43:51 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@@ -80,6 +80,7 @@
#define SEPARATED 4 /* " ": it's in 'udgc' list or in 'tobefnz' */
#define FIXEDBIT 5 /* object is fixed (should not be collected) */
#define OLDBIT 6 /* object is old (only in generational mode) */
/* bit 7 is currently used by tests (luaL_checkmemory) */
#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT)
@@ -90,6 +91,7 @@
(!testbits((x)->gch.marked, WHITEBITS | bitmask(BLACKBIT)))
#define isold(x) testbit((x)->gch.marked, OLDBIT)
#define resetoldbit(o) resetbit((o)->gch.marked, OLDBIT)
#define otherwhite(g) (g->currentwhite ^ WHITEBITS)
#define isdeadm(ow,m) (!(((m) ^ WHITEBITS) & (ow)))