Function riot_sys::os_mbuf_pack_chains

pub unsafe extern "C" fn os_mbuf_pack_chains(
    m1: *mut os_mbuf,
    m2: *mut os_mbuf
) -> *mut os_mbuf

Creates a single chained mbuf from m1 and m2 utilizing all the available buffer space in all mbufs in the resulting chain. In other words, ensures there is no leading space in any mbuf in the resulting chain and trailing space only in the last mbuf in the chain. Mbufs from either chain may be freed if not needed. No mbufs are allocated. Note that mbufs from m2 are added to the end of m1. If m1 has a packet header, it is retained and length updated. If m2 has a packet header it is discarded. If m1 is NULL, NULL is returned and m2 is left untouched.

@param m1 Pointer to first mbuf chain to pack @param m2 Pointer to second mbuf chain to pack

@return struct os_mbuf* Pointer to resulting mbuf chain