nim-eth/eth/utp/utp.nim

45 lines
1.6 KiB
Nim

# Copyright (c) 2020-2021 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [Defect].}
import
chronos, stew/byteutils,
./utp_protocol
# Exemple application to interact with reference implementation server to help with implementation
# To run lib utp server:
# 1. git clone https://github.com/bittorrent/libutp.git
# 2. cd libutp
# 3. make
# 4. ./ucat -ddddd -l -p 9078 - it will run utp server on port 9078
when isMainModule:
proc echoIncomingSocketCallBack(): AcceptConnectionCallback =
return (
proc (server: UtpProtocol, client: UtpSocket): Future[void] {.gcsafe, raises: [Defect].} =
echo "received incoming connection"
let fakeFuture = newFuture[void]()
fakeFuture.complete()
return fakeFuture
)
# TODO read client/server ports and address from cmd line or config file
let localAddress = initTAddress("0.0.0.0", 9077)
let utpProt = UtpProtocol.new(echoIncomingSocketCallBack(), localAddress)
let remoteServer = initTAddress("127.0.0.1", 9078)
let soc = waitFor utpProt.connectTo(remoteServer)
doAssert(soc.numPacketsInOutGoingBuffer() == 0)
let helloUtp = "Helllo from nim implementation"
let bytes = helloUtp.toBytes()
waitFor soc.write(bytes)
runForever()
waitFor utpProt.closeWait()