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FFI: Add ffi.gc() function for finalization of cdata objects.

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This commit is contained in:
Mike Pall
2011-02-28 16:48:13 +01:00
parent cead25f928
commit 83a37aeca7
9 changed files with 191 additions and 57 deletions
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13
src/lj_cdata.c
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@@ -52,7 +52,18 @@ GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz, CTSize align)
/* Free a C data object. */
void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd)
{
if (LJ_LIKELY(!cdataisv(cd))) {
if (LJ_UNLIKELY(cd->marked & LJ_GC_CDATA_FIN)) {
GCobj *root;
cd->marked = curwhite(g) | LJ_GC_FINALIZED;
if ((root = gcref(g->gc.mmudata)) != NULL) {
setgcrefr(cd->nextgc, root->gch.nextgc);
setgcref(root->gch.nextgc, obj2gco(cd));
setgcref(g->gc.mmudata, obj2gco(cd));
} else {
setgcref(cd->nextgc, obj2gco(cd));
setgcref(g->gc.mmudata, obj2gco(cd));
}
} else if (LJ_LIKELY(!cdataisv(cd))) {
CType *ct = ctype_raw(ctype_ctsG(g), cd->typeid);
CTSize sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR;
lua_assert(ctype_hassize(ct->info) || ctype_isfunc(ct->info) ||