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ensures that "collectgarbage'step'" in generational mode does a

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minor collection
This commit is contained in:
Roberto Ierusalimschy 2017-04-24 14:52:18 -03:00
parent 69371c4b84
commit f399e6705f
1 changed files with 9 additions and 4 deletions
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13
lgc.c
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@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 2.224 2017/04/20 18:24:33 roberto Exp roberto $
** $Id: lgc.c,v 2.225 2017/04/24 16:59:26 roberto Exp $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -1202,13 +1202,18 @@ static void fullgen (lua_State *L, global_State *g) {
/*
** Does a generational "step". For now that means a young
** collection. (We still has to implement the full control.)
** Does a generational "step". If memory grows 'genmajormul'% larger
** than last major collection (kept in 'g->GCestimate'), does a major
** collection. Otherwise, does a minor collection and set debt to make
** another collection when memory grows 'genminormul'% larger.
** 'GCdebt <= 0' means an explicity call to GC step with "size" zero;
** in that case, always do a minor collection.
*/
static void genstep (lua_State *L, global_State *g) {
lu_mem majorbase = g->GCestimate;
//lua_checkmemory(L);
if (gettotalbytes(g) > (majorbase / 100) * (100 + g->genmajormul)) {
if (g->GCdebt > 0 &&
gettotalbytes(g) > (majorbase / 100) * (100 + g->genmajormul)) {
fullgen(L, g);
}
else {