os_mbuf_concat

void os_mbuf_concat(struct os_mbuf *first, struct os_mbuf *second)

Attaches a second mbuf chain onto the end of the first. If the first chain contains a packet header, the header's length is updated. If the second chain has a packet header, its header is cleared.

Arguments

Arguments	Description
first	Pointer to first mbuf chain
second	Pointer to second mbuf chain

Returned values

None

Notes

No data is copied or moved nor are any mbufs freed.

Example

    uint16_t pktlen1;
    uint16_t pktlen2;
	struct os_mbuf *pkt1;
    struct os_mbuf *pkt2;
	
    /* Get initial packet lengths */
    pktlen1 = OS_MBUF_PKTLEN(pkt1);
    pktlen2 = OS_MBUF_PKTLEN(pkt2);

	/*  Add pkt2 to end of pkt1 */
    os_mbuf_concat(pkt1, pkt2);

    /* New packet length should be sum of pkt1 and pkt2 */
	assert((pktlen1 + pktlen2) == OS_MBUF_PKTLEN(pkt1));