source: binary-improvements/7dtd-server-fixes/src/ConsoleOutputSeparator.cs@ 123

using System;
using System.Collections.Generic;
using System.Threading;
using UnityEngine;

public class ConsoleOutputSeparator
{
        public struct AllocsTelnetCommand
        {
                public string command;
                public AllocsTelnetConnection client;

                public AllocsTelnetCommand (string _cmd, AllocsTelnetConnection _client)
                {
                        command = _cmd;
                        client = _client;
                }
        }

        private static List<AllocsTelnetCommand> telnetCommandQueue = new List<AllocsTelnetCommand> ();
        private static bool isCurrentCommandFromClient = false;
        private static AllocsTelnetConnection issuerOfCurrentTelnetCommand;

        public static void C_ExecuteCmdFromClient (ConsoleSdtd console, NetworkPlayer _networkPlayer, string _playerID, string _command)
        {
                Log.Out ("Executed command \"" + _command + "\" from player \"" + _playerID + "\"");

                object obj = telnetCommandQueue;
                Monitor.Enter (obj);
                try {
                        isCurrentCommandFromClient = true;
                        console.issuerOfCurrentClientCommand = _networkPlayer;
                        console.ExecuteClientCmdInternal (_playerID, _command);
                        isCurrentCommandFromClient = false;
                } finally {
                        Monitor.Exit (obj);
                }

        }

        public static void C_SendResult (ConsoleSdtd console, string _line)
        {
                if (isCurrentCommandFromClient) {
                        console.gameManager.GetRPCNetworkView ().RPC ("RPC_Console", console.issuerOfCurrentClientCommand, new object[]
                        {
                                _line,
                                false
                        }
                        );
                } else {
                        if (console.telnetServer != null && issuerOfCurrentTelnetCommand != null)
                                AllocsNetTelnetServer.WriteToClient_Single (_line, issuerOfCurrentTelnetCommand);
                        else if (ControlPanel.IsStarted ())
                                ControlPanel.AddTextToOutputBuffer (_line);
                }
        }

        public static void C_Run (ConsoleSdtd console)
        {
                if (telnetCommandQueue.Count > 0) {
                        object obj = telnetCommandQueue;
                        Monitor.Enter (obj);
                        try {
                                issuerOfCurrentTelnetCommand = telnetCommandQueue [0].client;
                                console.ExecuteRemoteCmdInternal (telnetCommandQueue [0].command, false);
                                telnetCommandQueue.RemoveAt (0);
                                issuerOfCurrentTelnetCommand = null;
                        } finally {
                                Monitor.Exit (obj);
                        }
                }
        }

        public static void QueueTelnetCommand (string _line, AllocsTelnetConnection _con)
        {
                object obj = telnetCommandQueue;
                Monitor.Enter (obj);
                try {
                        telnetCommandQueue.Add (new AllocsTelnetCommand (_line, _con));
                } finally {
                        Monitor.Exit (obj);
                }
        }
}