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GC back to controling pace counting bytes

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Memory is the resource we want to save. Still to be reviewed again.
This commit is contained in:
Roberto Ierusalimschy
2024-09-19 19:02:14 -03:00
parent b443145ff3
commit ddfa1fbccf
11 changed files with 247 additions and 202 deletions
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14
lstate.c
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@@ -77,12 +77,12 @@ typedef struct LG {
** objects (GCtotalobjs - GCdebt) invariant and avoiding overflows in
** 'GCtotalobjs'.
*/
void luaE_setdebt (global_State *g, l_obj debt) {
l_obj tb = gettotalobjs(g);
void luaE_setdebt (global_State *g, l_mem debt) {
l_mem tb = gettotalbytes(g);
lua_assert(tb > 0);
if (debt > MAX_LOBJ - tb)
debt = MAX_LOBJ - tb; /* will make GCtotalobjs == MAX_LOBJ */
g->GCtotalobjs = tb + debt;
if (debt > MAX_LMEM - tb)
debt = MAX_LMEM - tb; /* will make GCtotalbytes == MAX_LMEM */
g->GCtotalbytes = tb + debt;
g->GCdebt = debt;
}
@@ -269,8 +269,7 @@ static void close_state (lua_State *L) {
}
luaM_freearray(L, G(L)->strt.hash, cast_sizet(G(L)->strt.size));
freestack(L);
lua_assert(g->GCtotalbytes == sizeof(LG));
lua_assert(gettotalobjs(g) == 1);
lua_assert(gettotalbytes(g) == sizeof(LG));
(*g->frealloc)(g->ud, fromstate(L), sizeof(LG), 0); /* free main block */
}
@@ -379,7 +378,6 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud, unsigned seed) {
g->weak = g->ephemeron = g->allweak = NULL;
g->twups = NULL;
g->GCtotalbytes = sizeof(LG);
g->GCtotalobjs = 1;
g->GCmarked = 0;
g->GCdebt = 0;
setivalue(&g->nilvalue, 0); /* to signal that state is not yet built */