The `struct Epoch` introduced in e404f1038f
inadvertently made `radicle-node` suffer from
https://github.com/rust-lang/rust/issues/87906
That is, updating of the "current time" was skewed *way more*
than expected by a slowly ticking monotonic clock. Such slow
ticking can be caused by suspending the system.
`fn handle_events` would panic, if there were multiple events for one
token, and the first one that happened to be handled was an error.
Indeed it is concerning if a token is encountered that was never
registered before. However, tokens that were just deregistered must be
tracked.
Using `Vec` here seems a bit costly, in the future,
`smallvec::SmallVec` could be considered.
The "unregister" methods are renamed to "deregister" to better line up
with `mio` vocabulary.
Log statements that helped analysis of the panic that occurred here
are overhauled and improved, requiring a `Debug` bound on types that
obviously implement it.
The dependencies `netservices`, `io-reactor` and `popol` served us well,
however they do not support Windows and are not actively maintained.
This change removes the aforementioned dependencies (and `libc` along
with them). It reuses the integration with `cyphernet` from
`netservices` for Noise and SOCKS.
The new module `reactor` is a rewrite of `io-reactor` on top of Mio.
Note that no tests were changed.
Lorenz Leutgeb
Yaroslav Halchenko