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| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2010-05-10 15:23:45 -0300 |
|---|---|---|
| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2010-05-10 15:23:45 -0300 |
| commit | 1c1a98e872ad09b12fe2085031f0045f993ca5f0 (patch) | |
| tree | a711825a8b3f991797ef19dfaad083acbf59189a /lgc.h | |
| parent | c006f085d98923e505c7fe8909944d3c182f8301 (diff) | |
| download | lua-github-1c1a98e872ad09b12fe2085031f0045f993ca5f0.tar.gz | |
corrected some places where an old object could end up in front
of a new one + minimal documentation about this problem
Diffstat (limited to 'lgc.h')
| -rw-r--r-- | lgc.h | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -1,5 +1,5 @@ /* -** $Id: lgc.h,v 2.39 2010/05/07 18:43:51 roberto Exp roberto $ +** $Id: lgc.h,v 2.40 2010/05/10 16:46:49 roberto Exp roberto $ ** Garbage Collector ** See Copyright Notice in lua.h */ @@ -91,6 +91,9 @@ (!testbits((x)->gch.marked, WHITEBITS | bitmask(BLACKBIT))) #define isold(x) testbit((x)->gch.marked, OLDBIT) + +/* MOVE OLD rule: whenever an object is moved to the beginning of + a GC list, its old bit must be cleared */ #define resetoldbit(o) resetbit((o)->gch.marked, OLDBIT) #define otherwhite(g) (g->currentwhite ^ WHITEBITS) |