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Upvalues collected like everything else (with mark-sweep) instead

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of reference count (simpler and better for generational mode)
This commit is contained in:
Roberto Ierusalimschy
2017-04-11 15:41:09 -03:00
parent 9569ad6b0d
commit a3d36fe283
9 changed files with 97 additions and 127 deletions
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10
lgc.h
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@@ -1,5 +1,5 @@
/*
** $Id: lgc.h,v 2.94 2017/04/06 13:08:56 roberto Exp roberto $
** $Id: lgc.h,v 2.95 2017/04/10 13:33:04 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@@ -124,8 +124,6 @@
#define changeage(o,f,t) \
check_exp(getage(o) == (f), (o)->marked ^= ((f)^(t)))
#define ongraylist(o) (isgray(o) || getage(o) == G_TOUCHED2)
/*
** Does one step of collection when debt becomes positive. 'pre'/'pos'
@@ -153,10 +151,6 @@
(isblack(p) && iswhite(o)) ? \
luaC_barrier_(L,obj2gco(p),obj2gco(o)) : cast_void(0))
#define luaC_upvalbarrier(L,uv,x) ( \
(iscollectable(x) && !upisopen(uv)) ? \
luaC_upvalbarrier_(L,gcvalue(x)) : cast_void(0))
LUAI_FUNC void luaC_fix (lua_State *L, GCObject *o);
LUAI_FUNC void luaC_freeallobjects (lua_State *L);
LUAI_FUNC void luaC_step (lua_State *L);
@@ -165,9 +159,7 @@ LUAI_FUNC void luaC_fullgc (lua_State *L, int isemergency);
LUAI_FUNC GCObject *luaC_newobj (lua_State *L, int tt, size_t sz);
LUAI_FUNC void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v);
LUAI_FUNC void luaC_barrierback_ (lua_State *L, Table *o);
LUAI_FUNC void luaC_upvalbarrier_ (lua_State *L, GCObject *o);
LUAI_FUNC void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt);
LUAI_FUNC void luaC_upvdeccount (lua_State *L, UpVal *uv);
LUAI_FUNC void luaC_changemode (lua_State *L, int newmode);