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import asyncdispatch, asyncnet, nativesockets, net, strutils
from stdtest/netutils import bindAvailablePort
var msgCount = 0
const
swarmSize = 40
messagesToSend = 50
var clientCount = 0
proc sendMessages(client: AsyncFD) {.async.} =
for i in 0 ..< messagesToSend:
await send(client, "Message " & $i & "\c\L")
proc launchSwarm(port: Port) {.async.} =
for i in 0 ..< swarmSize:
var sock = createAsyncNativeSocket()
await connect(sock, "localhost", port)
await sendMessages(sock)
closeSocket(sock)
proc readMessages(client: AsyncFD) {.async.} =
# wrapping the AsyncFd into a AsyncSocket object
var sockObj = newAsyncSocket(client)
var (ipaddr, port) = sockObj.getPeerAddr()
doAssert ipaddr == "127.0.0.1"
(ipaddr, port) = sockObj.getLocalAddr()
doAssert ipaddr == "127.0.0.1"
while true:
var line = await recvLine(sockObj)
if line == "":
closeSocket(client)
clientCount.inc
break
else:
if line.startsWith("Message "):
msgCount.inc
else:
doAssert false
proc createServer(server: AsyncFD) {.async.} =
discard server.SocketHandle.listen()
while true:
asyncCheck readMessages(await accept(server))
let server = createAsyncNativeSocket()
let port = bindAvailablePort(server.SocketHandle)
asyncCheck createServer(server)
asyncCheck launchSwarm(port)
while true:
poll()
if clientCount == swarmSize: break
doAssert msgCount == swarmSize * messagesToSend
doAssert msgCount == 2000
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