Function test_attach_from_different_pool

dpdk/app/test/test_mbuf.c:577–679

}

static int
test_attach_from_different_pool(struct rte_mempool *pktmbuf_pool,
				struct rte_mempool *pktmbuf_pool2)
{
	struct rte_mbuf *m = NULL;
	struct rte_mbuf *clone = NULL;
	struct rte_mbuf *clone2 = NULL;
	char *data, *c_data, *c_data2;

	/* alloc a mbuf */
	m = rte_pktmbuf_alloc(pktmbuf_pool);
	if (m == NULL)
		GOTO_FAIL("cannot allocate mbuf");

	if (rte_pktmbuf_pkt_len(m) != 0)
		GOTO_FAIL("Bad length");

	data = rte_pktmbuf_mtod(m, char *);

	/* allocate a new mbuf from the second pool, and attach it to the first
	 * mbuf */
	clone = rte_pktmbuf_alloc(pktmbuf_pool2);
	if (clone == NULL)
		GOTO_FAIL("cannot allocate mbuf from second pool\n");

	/* check data room size and priv size, and erase priv */
	if (rte_pktmbuf_data_room_size(clone->pool) != 0)
		GOTO_FAIL("data room size should be 0\n");
	if (rte_pktmbuf_priv_size(clone->pool) != MBUF2_PRIV_SIZE)
		GOTO_FAIL("data room size should be %d\n", MBUF2_PRIV_SIZE);
	memset(clone + 1, 0, MBUF2_PRIV_SIZE);

	/* save data pointer to compare it after detach() */
	c_data = rte_pktmbuf_mtod(clone, char *);
	if (c_data != (char *)clone + sizeof(*clone) + MBUF2_PRIV_SIZE)
		GOTO_FAIL("bad data pointer in clone");
	if (rte_pktmbuf_headroom(clone) != 0)
		GOTO_FAIL("bad headroom in clone");

	rte_pktmbuf_attach(clone, m);

	if (rte_pktmbuf_mtod(clone, char *) != data)
		GOTO_FAIL("clone was not attached properly\n");
	if (rte_pktmbuf_headroom(clone) != RTE_PKTMBUF_HEADROOM)
		GOTO_FAIL("bad headroom in clone after attach");
	if (rte_mbuf_refcnt_read(m) != 2)
		GOTO_FAIL("invalid refcnt in m\n");

	/* allocate a new mbuf from the second pool, and attach it to the first
	 * cloned mbuf */
	clone2 = rte_pktmbuf_alloc(pktmbuf_pool2);
	if (clone2 == NULL)
		GOTO_FAIL("cannot allocate clone2 from second pool\n");

	/* check data room size and priv size, and erase priv */
	if (rte_pktmbuf_data_room_size(clone2->pool) != 0)
		GOTO_FAIL("data room size should be 0\n");
	if (rte_pktmbuf_priv_size(clone2->pool) != MBUF2_PRIV_SIZE)