LogQueue.cs

using System.Collections.Concurrent;
using System.Runtime.CompilerServices;

namespace LightNet
{
    public enum ELogType
    {
        Info,
        Warning,
        Error
    }

    public struct LogMessage
    {
        public ELogType Type;
        public string Message;
    }

    /// <summary>
    /// A thread safe log message queue, usefull to share log messages between different threads. You can queue and unqueue log messages from anywhere in any thread.<br/>
    /// All log methods provide additional auto-filled parameters to determine the caller method name and line number.<br/>
    /// Example:
    /// <code>LogQueue.LogInfo("This is a test.");</code>
    /// </summary>
    public static class LogQueue
    {
        static ConcurrentQueue<LogMessage> Logs = new ConcurrentQueue<LogMessage>();

        static void Log(ELogType type, string format, object[] args = null, [CallerFilePathAttribute] string caller = null, [CallerLineNumber] int lineNumber = 0)
        {
            caller = System.IO.Path.GetFileName(caller);
            args = args == null ? new object[0] : args;
            LogMessage msg;
            msg.Type = type;
            msg.Message = string.Format("[{0}:{1}]", caller, lineNumber) + string.Format(format, args);
            Logs.Enqueue(msg);
        }

        public static bool GetNext(out LogMessage nextLogMessage)
        {
            return Logs.TryDequeue(out nextLogMessage);
        }

        public static void LogInfo(string format, object[] args = null, [CallerFilePathAttribute] string caller = null, [CallerLineNumber] int lineNumber = 0)
        {
            Log(ELogType.Info, format, args, caller, lineNumber);
        }

        public static void LogWarning(string format, object[] args = null, [CallerFilePathAttribute] string caller = null, [CallerLineNumber] int lineNumber = 0)
        {
            Log(ELogType.Warning, format, args, caller, lineNumber);
        }

        public static void LogError(string format, object[] args = null, [CallerFilePathAttribute] string caller = null, [CallerLineNumber] int lineNumber = 0)
        {
            Log(ELogType.Error, format, args, caller, lineNumber);
        }
    }
}