int
fbuf_copy(fbuf_t *fbufsrc, fbuf_t *fbufdst)
{
if (!fbuf_extend(fbufdst, fbufsrc->used))
return -1;
fbuf_clear(fbufdst);
memcpy(fbufdst->data + fbufdst->skip, fbufsrc->data + fbufsrc->skip, fbufsrc->used);
fbufdst->used = fbufsrc->used;
fbufdst->data[fbufdst->skip+fbufdst->used] = 0;
return fbufdst->used;
}
void fbuf_consume(struct fbuf *buf, size_t sz)
{
assert_valid_fbuf(buf);
/* overflow check */
assert(sz <= fbuf_avail(buf));
buf->start += sz;
/* if our buffer is empty, clear it */
if (fbuf_avail(buf) == 0)
fbuf_clear(buf);
}
void fbuf_free(struct fbuf *buf)
{
assert_valid_fbuf(buf);
/* if we have a non-zero object then free it's buffer */
if (buf->base)
free(buf->base);
/* and ensure it is cleared */
buf->base = 0;
buf->size = 0;
fbuf_clear(buf);
}
