In one case, we use WeightRole::Exit on circuits that can't
actually be used to exit. This commit adds a comment to explain
why, so that we don't wonder about it in the future, and we have
some indication of whether it's still appropriate.
Closes#785
We now _use_ the function pointers rather than comparing them; this
lets us drop our Eq/PartialEq/Hash implementations for
`ConstTypeId_` and instead just use `TypeId`s once we're in run-time
code.
It's experimental, and tokio-only. To enable it, build with
the "rpc" feature turned on, and connect to
`~/.arti-rpc-TESTING/PIPE`. (`nc -U` worked for me)
I'll add some instructions.
Per our design, every connection starts out unauthenticated, and
needs one authenticate command to become authenticated.
Right now the only authentication type is "This is a unix named
socket where everybody who can connect has permission."
This lets us avoid async_trait in tor-rpccmd, and makes us use a
Box<>. I think we might actually get an even smarter type later on,
but we will need to play with this for a while too.
I'm not sure about these APIs at all! They force us to use
`async_trait` for `tor_rpccmd::Context`, which bothers me. Should we
just have a function that returns
`Option<Box<dyn Sink<Item=X, Error=Y>>` or something? If so,
what's the correct Y?
This code uses some kludges (discussed with Ian previously and
hopefully well documented here) to get a type-identifier for each
type in a const context. It then defines a macro to declare a
type-erased versions of a concrete implementation functions, and
register those implementations to be called later.
We will probably want to tweak a bunch of this code as we move ahead.
Ordinarily you can cancel a future just by dropping it, but we'll
want the ability to cancel futures that we no longer own (because we
gave them to a `FuturesUnordered`).
This is a workaround for an issue that I'm about to encounter
somewhere in our pile of dependencies as I add arti-rpcserver, and
somehow make serde_json visible in this test code thereby, making
the PartialEq method resolution ambiguous.
Nick Mathewson
gabi-250
Neel Chauhan