This means that when the client sends a truncated data to indicate
invalidity, DATA is not passed the full expected data. That leaves the
P2P connection in a state where it cannot be reused. While so far, they
are not reused, they will be later when proxies are supported. So, have
to close the P2P connection in this situation.
Made the data-length header required even for v0. This simplifies the
implementation, and doesn't preclude extra verification being done for
v0.
The connectionWaitVar is an ugly hack. In servePut, nothing waits
on the waitvar, and I could not find a good way to make anything wait on
it.
This came down to SendBytes waiting on the waitv. Nothing ever filled
it.
Only Annex.Proxy needs the waitv, and it handles filling it. So make it
optional.
Both are only at bare proof of concept stage. Still need to deal with
signaling validity and invalidity, and checking it.
And there's a bad bug: After -JN*2 requests, another request hangs!
So, I think it's failing to free up the Annex worker and end of request
lifetime.
Perhaps I need to use this:
https://docs.servant.dev/en/stable/cookbook/managed-resource/ManagedResource.html
