This lets us build channels using different TransportHelpers,
including the (new) default TransportHelper, which just uses the old
connect_to_one() code.
The traits that launch connections need to be async; the traits that
don't, shouldn't be async.
Additionally, we need a few more "Sync" annotations here for the
futures to work.
This is an internal type (distinct from factory::ChannelFactory)
that we use to make the code in `tor_chanmgr::mgr` agnostic about
what a channel actually is, and how it is actually launched.
Therefore, I'm renaming it and giving better documentation in a
couple of places, to prevent confusion.
This demonstrates that:
* !bridge-client: uncommenting nondefault bridge config generates
urecognized config key warnings (but the config is still accepted)(
* bridge-client, !pt-client: uncommenting nondefault bridges generates
error due to attempting to use a PT. If that's filtered out,
everything is fine.
* pt-client: Everything is good (as before).
* Introduce filter_examples and resolve_examples helpers,
which will become more complex in a moment.
* Move the API test into a { } block to minimise subsequent diff.
It's going to become conditional.
* In subsequent comparisons, use the parsed version, since
the API built one might not exist.
No overall functional change.
We're going to want something that has the standard list builder
methods at the Rust API, but which has different serialisation.
Sadly the implementation is annoying, because macro_rules makes it
hard to parse a nice input syntax.
This is precisely the text from the original version of !744.
There is no implementation yet, so we must add a entry to the
exception list in the tests.
Section headings appear uncommented in the file, so if we have a
whole section which is completely unrecognized (ie, an entry with no
`.`, it will be spotted when we parse the not-uncommented file too.
Right now there aren't any but there will be in a moment.
This test depends on `Duration` having a granularity of 1
nanosecond, which is not the case on OSX, and is probably not the
case on other places too.
We can re-enable this once we have a set of test vectors that use
more realistic RTTs, and a set of testing code that tolerates some
divergence.
Temporary solution for #574.
I think this is quite an inconvenient way to be carrying on.
Maybe we should disable all dead code warnings unless all features are
also enabled, and just let the compiler get rid of unused stuff later.