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 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
Kim De Mey
tersec
Justin Traglia
KonradStaniec
Jacek Sieka