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Poisoning: take there...

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This commit is contained in:
Martin Mares 2000-05-16 15:02:33 +00:00
parent d6796e7b54
commit be77b6890c
1 changed files with 6 additions and 2 deletions
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8
lib/slab.c
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@ -108,7 +108,7 @@ slab_dump(resource *r)
struct slab { struct slab {
resource r; resource r;
unsigned obj_size, head_size, objs_per_slab, num_empty_heads; unsigned obj_size, head_size, objs_per_slab, num_empty_heads, data_size;
list empty_heads, partial_heads, full_heads; list empty_heads, partial_heads, full_heads;
}; };
@ -146,6 +146,7 @@ sl_new(pool *p, unsigned size)
unsigned int align = sizeof(struct sl_alignment); unsigned int align = sizeof(struct sl_alignment);
if (align < sizeof(int)) if (align < sizeof(int))
align = sizeof(int); align = sizeof(int);
s->data_size = size;
size += OFFSETOF(struct sl_obj, u.data); size += OFFSETOF(struct sl_obj, u.data);
if (size < sizeof(struct sl_obj)) if (size < sizeof(struct sl_obj))
size = sizeof(struct sl_obj); size = sizeof(struct sl_obj);
@ -198,6 +199,9 @@ okay:
goto full_partial; goto full_partial;
h->first_free = o->u.next; h->first_free = o->u.next;
h->num_full++; h->num_full++;
#ifdef POISON
memset(o->u.data, 0xcd, s->data_size);
#endif
return o->u.data; return o->u.data;
full_partial: full_partial:
@ -226,7 +230,7 @@ sl_free(slab *s, void *oo)
struct sl_head *h = o->slab; struct sl_head *h = o->slab;
#ifdef POISON #ifdef POISON
memset(o, 0xdb, s->obj_size); memset(oo, 0xdb, s->data_size);
#endif #endif
o->u.next = h->first_free; o->u.next = h->first_free;
h->first_free = o; h->first_free = o;