Implement m_snd_tag_wait()

[• hselasky]

Summary

Implement function that will wait until the last send tag has been destroyed.

[• hselasky]

Update as per Jeff's suggestion.

[kib]

sys/sys/mbuf.h

1331

This function returns true if it successfully dropped a ref. So you cal m_snd_tag_destroy() on each deref except last, and then double drop ?

[• hselasky]

sys/sys/mbuf.h

1331

Note there is a "!" in the beginning. We only go into the "if" on the last reference and that is not dropped, and then we drop the ref and do the wakup, if needed.

not not = nothing.

[• hselasky]

refcount_wait() is expected to go away.