u8 hdr_size; /**< header size divided by VEC_MIN_ALIGN */
u8 log2_align : 7; /**< data alignment */
u8 default_heap : 1; /**< vector uses default heap */
- u8 vpad[2]; /**< pad to 8 bytes */
+ u8 grow_elts; /**< number of elts vector can grow without realloc */
+ u8 vpad[1]; /**< pad to 8 bytes */
u8 vector_data[0]; /**< Vector data . */
} vec_header_t;
#define vec_max_len(v) _vec_max_len (v, _vec_elt_sz (v))
+static_always_inline void
+_vec_set_grow_elts (void *v, uword n_elts)
+{
+ uword max = pow2_mask (BITS (_vec_find (0)->grow_elts));
+
+ if (PREDICT_FALSE (n_elts > max))
+ n_elts = max;
+
+ _vec_find (v)->grow_elts = n_elts;
+}
+
always_inline void
_vec_set_len (void *v, uword len, uword elt_sz)
{
ASSERT (v);
ASSERT (len <= _vec_max_len (v, elt_sz));
uword old_len = _vec_len (v);
+ uword grow_elts = _vec_find (v)->grow_elts;
if (len > old_len)
clib_mem_unpoison (v + old_len * elt_sz, (len - old_len) * elt_sz);
- else if (len > old_len)
+ else if (len < old_len)
clib_mem_poison (v + len * elt_sz, (old_len - len) * elt_sz);
+ _vec_set_grow_elts (v, old_len + grow_elts - len);
_vec_find (v)->len = len;
}
if (v) \
for ((var) = vec_len ((v)) - 1; (var) >= 0; (var)--)
+#define vec_foreach_pointer(e, v) \
+ if (v) \
+ for (typeof (**v) **__ep = (v), **__end = vec_end (v), *(e) = *__ep; \
+ __ep < __end; __ep++, (e) = __ep < __end ? *__ep : (e))
+
#endif /* included_clib_vec_bootstrap_h */
/*