Since these types were written, we've gained an executable spec:
https://github.com/ethereum/execution-specs
This PR aligns some of the types we use with this spec to simplify
comparisons and cross-referencing.
Using a `distinct` type is a tradeoff between nim ergonomics, type
safety and the ability to work around nim quirks and stdlib weaknesses.
In particular, it allows us to overload common functions such as `hash`
with correct and performant versions as well as maintain control over
string conversions etc at the cost of a little bit of ceremony when
instantiating them.
Apart from distinct byte types, `Hash32`, is introduced in lieu of the
existing `Hash256`, again aligning this commonly used type with the spec
which picks bytes rather than bits in the name.
* Fix chronos related deprecated warnings in discv5
* Fix chronos related deprecated warnings in uTP code
* Improve discv5 closeWait order of events and add noCancel
- Add a multiple sockets use test for uTP over discv5
- Use assign2 for the biggest consumer of genericAssignAux in uTP
- Avoid calling exists on the growable buffer when there is no
place in the socket window.
- add eventLoop to control all incoming events
- change semantic of write to asynchronously block only when send buffer is full, and not when bytes do not fit into send window
- change handling of receive buffer, to start dropping packets if the reorder buffer and receive buffer are full. Old behaviour was to async block unless there is space which could lead to resource exhaustion attacks
Currently only setting `--styleCheck:hint` as there are some
dependency fixes required and the compiler seems to trip over the
findnode MessageKind, findnode Message field and the findNode
proc. Also over protocol.Protocol usage.
* Add separate datastructure to keep track of window
* Asynchronously block write until until new space in snd buffer
* Introduce write loop
* Properly handle write cancellation
* Proper handling of sending fin packet
* Reset remote window after configured amount of time
Jacek Sieka
Kim De Mey
tersec
KonradStaniec
Justin Traglia