Socket code in Julia.

freezes.jl

echo2_helper(socket,stat) =
begin
  println(stat)
  show(socket)
  c = accept(socket)
  println(c)
  line = read_line(c)
  println(line)
  while line != "0\n"
    write(c,line)
    line = read_line(c)
  end
  close(c)
end

echo2(port::Int) =
begin
  socket = listen(port)
  socket.ccb = echo2_helper
end

output_of_echo2.txt

julia> echo2(8000)
# methods for generic function echo2_helper
echo2_helper(socket,stat) at /home/leah/code/julia-websocket-server/websockets.jl:12

julia> 0
TcpSocket(connected,0 bytes waiting)ERROR: MemoryError()
 in push! at array.jl:653
 in wait at stream.jl:131
 in readline at stream.jl:380
 in echo2_helper at /home/leah/code/julia-websocket-server/websockets.jl:18
 in _uv_hook_connectioncb at stream.jl:159
 in event_loop at multi.jl:1386
 in anonymous at client.jl:281ERROR: in tasknotify: work not defined
 in tasknotify at stream.jl:104
 in _uv_hook_readcb at stream.jl:208
 in event_loop at multi.jl:1386
 in anonymous at client.jl:281ERROR: in tasknotify: work not defined
 in tasknotify at stream.jl:104
 in _uv_hook_readcb at stream.jl:208
 in event_loop at multi.jl:1386
 in anonymous at client.jl:281

works.jl

echo(client) = (args...) -> begin
  line = readline(client)
  write(client,line)
  
  if line != "0\n"
    return true
  end
  close(client)
  false
end

echo_server(port::Int) =
  listen(port) do sock,stat
    client = accept(sock)
    client.readcb = echo(client)
    start_reading(client)
  end