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don't cache freep

This commit is contained in:
Yuichi Nishiwaki 2015-07-16 15:42:44 +09:00
parent 0fc2a8e273
commit b4f8d929ec
1 changed files with 5 additions and 6 deletions
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11
extlib/benz/gc.c
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@ -154,18 +154,18 @@ pic_gc_arena_restore(pic_state *pic, size_t state)
static void * static void *
heap_alloc(pic_state *pic, size_t size) heap_alloc(pic_state *pic, size_t size)
{ {
union header *freep, *p, *prevp; union header *p, *prevp;
size_t nunits; size_t nunits;
assert(size > 0); assert(size > 0);
nunits = (size + sizeof(union header) - 1) / sizeof(union header) + 1; nunits = (size + sizeof(union header) - 1) / sizeof(union header) + 1;
prevp = freep = pic->heap->freep; prevp = pic->heap->freep;
for (p = prevp->s.ptr; ; prevp = p, p = p->s.ptr) { for (p = prevp->s.ptr; ; prevp = p, p = p->s.ptr) {
if (p->s.size >= nunits) if (p->s.size >= nunits)
break; break;
if (p == freep) { if (p == pic->heap->freep) {
return NULL; return NULL;
} }
} }
@ -186,7 +186,7 @@ heap_alloc(pic_state *pic, size_t size)
static void static void
heap_free(pic_state *pic, void *ap) heap_free(pic_state *pic, void *ap)
{ {
union header *freep, *bp, *p; union header *bp, *p;
assert(ap != NULL); assert(ap != NULL);
@ -194,8 +194,7 @@ heap_free(pic_state *pic, void *ap)
assert(bp->s.size > 1); assert(bp->s.size > 1);
freep = pic->heap->freep; for (p = pic->heap->freep; ! (bp > p && bp < p->s.ptr); p = p->s.ptr) {
for (p = freep; ! (bp > p && bp < p->s.ptr); p = p->s.ptr) {
if (p >= p->s.ptr && (bp > p || bp < p->s.ptr)) { if (p >= p->s.ptr && (bp > p || bp < p->s.ptr)) {
break; break;
} }