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Refactor lj_cdata_newv().

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Mike Pall 2013-05-23 18:43:16 +02:00
parent 6f451c6445
commit 38cfb6a1d9
3 changed files with 5 additions and 5 deletions
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2
src/lib_ffi.c
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@ -507,7 +507,7 @@ LJLIB_CF(ffi_new) LJLIB_REC(.)
if (!(info & CTF_VLA) && ctype_align(info) <= CT_MEMALIGN) if (!(info & CTF_VLA) && ctype_align(info) <= CT_MEMALIGN)
cd = lj_cdata_new(cts, id, sz); cd = lj_cdata_new(cts, id, sz);
else else
cd = lj_cdata_newv(cts, id, sz, ctype_align(info)); cd = lj_cdata_newv(L, id, sz, ctype_align(info));
setcdataV(L, o-1, cd); /* Anchor the uninitialized cdata. */ setcdataV(L, o-1, cd); /* Anchor the uninitialized cdata. */
lj_cconv_ct_init(cts, ct, sz, cdataptr(cd), lj_cconv_ct_init(cts, ct, sz, cdataptr(cd),
o, (MSize)(L->top - o)); /* Initialize cdata. */ o, (MSize)(L->top - o)); /* Initialize cdata. */

6
src/lj_cdata.c
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@ -26,12 +26,12 @@ GCcdata *lj_cdata_newref(CTState *cts, const void *p, CTypeID id)
} }
/* Allocate variable-sized or specially aligned C data object. */ /* Allocate variable-sized or specially aligned C data object. */
GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz, CTSize align) GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz, CTSize align)
{ {
global_State *g; global_State *g;
MSize extra = sizeof(GCcdataVar) + sizeof(GCcdata) + MSize extra = sizeof(GCcdataVar) + sizeof(GCcdata) +
(align > CT_MEMALIGN ? (1u<<align) - (1u<<CT_MEMALIGN) : 0); (align > CT_MEMALIGN ? (1u<<align) - (1u<<CT_MEMALIGN) : 0);
char *p = lj_mem_newt(cts->L, extra + sz, char); char *p = lj_mem_newt(L, extra + sz, char);
uintptr_t adata = (uintptr_t)p + sizeof(GCcdataVar) + sizeof(GCcdata); uintptr_t adata = (uintptr_t)p + sizeof(GCcdataVar) + sizeof(GCcdata);
uintptr_t almask = (1u << align) - 1u; uintptr_t almask = (1u << align) - 1u;
GCcdata *cd = (GCcdata *)(((adata + almask) & ~almask) - sizeof(GCcdata)); GCcdata *cd = (GCcdata *)(((adata + almask) & ~almask) - sizeof(GCcdata));
@ -39,7 +39,7 @@ GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz, CTSize align)
cdatav(cd)->offset = (uint16_t)((char *)cd - p); cdatav(cd)->offset = (uint16_t)((char *)cd - p);
cdatav(cd)->extra = extra; cdatav(cd)->extra = extra;
cdatav(cd)->len = sz; cdatav(cd)->len = sz;
g = cts->g; g = G(L);
setgcrefr(cd->nextgc, g->gc.root); setgcrefr(cd->nextgc, g->gc.root);
setgcref(g->gc.root, obj2gco(cd)); setgcref(g->gc.root, obj2gco(cd));
newwhite(g, obj2gco(cd)); newwhite(g, obj2gco(cd));

2
src/lj_cdata.h
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@ -58,7 +58,7 @@ static LJ_AINLINE GCcdata *lj_cdata_new_(lua_State *L, CTypeID id, CTSize sz)
} }
LJ_FUNC GCcdata *lj_cdata_newref(CTState *cts, const void *pp, CTypeID id); LJ_FUNC GCcdata *lj_cdata_newref(CTState *cts, const void *pp, CTypeID id);
LJ_FUNC GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz, LJ_FUNC GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz,
CTSize align); CTSize align);
LJ_FUNC void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd); LJ_FUNC void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd);