>Whether it's a separate port space or not is as simple as defining a
>different hash_info structure.
>
>struct inet_hashinfo __cachline_aligned ib_hashinfo = {
> .lhash_lock = RW_LOCK_UNLOCKED,
> .lhash_users = ATOMIC_INIT(0),
> .lhash_wait = _WAIT_QUEUE_HEAD_INITIALIZER(ib_hashinfo.lhash_wait);
>};
>
>#ifndef I_WANT_SHARED_TCP_PORTSPACE
>struct inet_hashinfo __cachline_aligned __iw_hashinfo = {
> .lhash_lock = RW_LOCK_UNLOCKED,
> .lhash_users = ATOMIC_INIT(0),
> .lhash_wait = _WAIT_QUEUE_HEAD_INITIALIZER(ib_hashinfo.lhash_wait);
>};
>struct inet_hashinfo *iw_hashinfo = &__iw_hashinfo;
>#else
>struct inet_hashinfo *iw_hashinfo = &tcp_hashinfo;
>#endif
Sweet! :)
>struct sock dummy {
> /* initialized for REUSE port, etc... */
>};
>struct sock *ib_sock = &dummy;
>
>int ib_get_port(unsigned short snum)
>{
> return inet_csk_get_port(&ib_hashinfo, ib_sock, snum)
>}
>
>int iw_get_port(unsigned short snum)
>{
> return inet_csk_get_port(&iw_hashinfo, iw_sock, snum);
>}
Is it safe to re-use the same socket each time? When are the ports available
for re-use?
- Sean
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