This also makes the uTP SendCallBack not returning a Future any
more as it is not used in sendData anyhow. And in case of uTP
over discv5, discv5 send call is already not async.
This gives quite a noticable throughput benchmark improvement over
with uTP over UDP, and a slightly noticable with uTP over discv5
- 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 few missing top level raises Defect in uTP
- Add top level {.push raises: [Defect].}
- remove some local raises, including some unneeded
CatchableErrors.
- Don't export messageHandler (avoiding annoying naming collisions)
- export utp_router as those connection callbacks are in the API
* Add some missing copyright clauses
* Some ident and max line length cleanup
* Rename utp_discv5_protocol.nim to be more consistent
* Refactor tests and move socket to separate file
* Move sockets handling to separate class
* Abstract over underlying transport
* Fix bug with receiving duplicated SYN packet
* Fix race condition in connect
Kim De Mey
Jacek Sieka
Lorenzo Delgado
Justin Traglia
KonradStaniec