Function test_neg_pktmbuf_alloc_bulk

dpdk/app/test/test_mbuf.c:1872–1898

* Negative testing for allocating a bulk of mbufs */

 * Negative testing for allocating a bulk of mbufs
 */
static int
test_neg_pktmbuf_alloc_bulk(struct rte_mempool *pktmbuf_pool)
{
	int ret = 0;
	unsigned int idx, loop;
	unsigned int neg_alloc_counts[] = {
		MEMPOOL_CACHE_SIZE - NB_MBUF,
		NB_MBUF + 1,
		NB_MBUF * 8,
		UINT_MAX
	};
	struct rte_mbuf *mbufs[NB_MBUF * 8] = { 0 };

	for (idx = 0; idx < RTE_DIM(neg_alloc_counts); idx++) {
		ret = rte_pktmbuf_alloc_bulk(pktmbuf_pool, mbufs,
				neg_alloc_counts[idx]);
		if (ret == 0) {
			printf("%s: Bulk alloc must fail! count(%u); ret(%d)\n",
					__func__, neg_alloc_counts[idx], ret);
			for (loop = 0; loop < neg_alloc_counts[idx] &&
					mbufs[loop] != NULL; loop++)
				rte_pktmbuf_free(mbufs[loop]);
			return -1;
		}
	}
	return 0;
}

/*
 * Test to read mbuf packet using rte_pktmbuf_read