Fix line endings for server.

src/commands.nim

@@ -1,4 +1,4 @@
-
+import json
 const
   defaultPort* = 5555     ## Default port at which the control server will run
 
@@ -12,4 +12,7 @@ type
     parameter*: string    ## Optional parameter for the command
 
 proc newCommand*(c: Command, p: string = ""): CommandMessage =
-  CommandMessage(command: c, parameter: p)
+  CommandMessage(command: c, parameter: p)
+
+proc wrap*(msg: CommandMessage): string =
+  $(%msg) & "\r\L"

src/pixctrl.nim

@@ -2,12 +2,21 @@ import net
 import argparse
 import commands
 
+var socket = newSocket()
+
+proc sendCommand(server, port: string, msg: CommandMessage) =
+  socket.connect(server, Port(port.parseInt))
+  if not socket.trySend(msg.wrap):
+    echo "Cannot send command: ", msg
+  socket.close()
+
 var p = newParser("pixctrl"):
   help("Control utilitiy for randopix")
   option("-s", "--server", help="Host running the randopix server", default="127.0.0.1")
   option("-p", "--port", help="Port to connect to the randopix server", default = $defaultPort)
-
-var socket = newSocket()
-socket.connect("127.0.0.1", Port(defaultPort))
-socket.send("Hello, Sockets!\r\L")
-socket.close()
+  command("refresh"):
+    run:
+      let c = newCommand(Command.Refresh)
+      sendCommand(opts.parentOpts.server, opts.parentOpts.port, c)
+      
+p.run(commandLineParams())

src/randopix.nim

@@ -129,6 +129,7 @@ proc checkServerChannel(parameter: string): bool =
     else:
       echo "Command ignored", msg.command
 
+  sleep(100)
   result = false
   discard idleAdd(checkServerChannel, parameter)
 

src/server.nim

@@ -1,4 +1,4 @@
-import net, json, marshal
+import net, json
 import commands
 
 var 
@@ -9,23 +9,28 @@ proc closeServer*() =
   var socket = newSocket()
   socket.connect("127.0.0.1", Port(defaultPort))
   let c = newCommand(Command.Close)
-  socket.send($(%c))
+  socket.send(c.wrap)
   socket.close()
 
 proc runServer*() = 
-  var socket = newSocket()
-  socket.bindAddr(Port(defaultPort))
-  socket.listen()
+  var server = newSocket()
+  server.bindAddr(Port(defaultPort))
+  server.listen()
   echo "Control server is listening"
 
   while true:    
     # Process client requests
     var client = newSocket()
-    socket.accept(client)
-    echo("Incomming client")
+    server.accept(client)
+    echo("Client connected")
     try:
       var line = client.recvLine()
-      let msg = to[CommandMessage](line)
+      if line == "":
+        echo "No data from client"
+        continue
+      
+      var jsonData = parseJson(line)
+      let msg = jsonData.to(CommandMessage)
       case msg.command
       of Command.Close:
         echo "Server recieved termination command. Exiting."
@@ -37,4 +42,6 @@ proc runServer*() =
     except OSError:
       echo "Server error: ", getCurrentExceptionMsg()
     except:
-      echo "Invalid command from client"
+      echo "Invalid command from client: ", getCurrentExceptionMsg()
+      echo repr(getCurrentException())
+  server.close()