import std/[threadpool, os]

proc setupSender(channel: var Channel[string]) =
  proc sendMsg() =
    while true:
      let terminalInput = readLine(stdin)
      echo "Sending message from Frontend from thread ", getThreadId(), ": ",
terminalInput
      channel.send(terminalInput)

  spawn sendMsg()

proc setupReceiver(channel: var Channel[string]) =
  proc recvMsg() =
    while true:
      let msg: string = channel.recv()
      echo "Received message at Backend on Thread: ", getThreadId(), " :", msg

  spawn recvMsg()

proc main() =
  var commChan: Channel[string]
  commChan.open()
  setupSender(commChan)
  setupReceiver(commChan)
  sync()

main()
# `Error: 'channel' is of type <var Channel[system.string]> which cannot be
# captured as it would violate memory safety, declared here:
# /home/philipp/dev/playground/src/playground.nim(3, 18); using
# '-d:nimNoLentIterators' helps in some cases. Consider using a <ref var
# Channel[system.string]> which can be captured.`