logger

    public class Logger
    {
        public static Logger mp3, ogg, pcm, med, mix, tag, app;
        public static List<double> bitratem, bitrateo;
        public static void init()
        {
            bitratem = new List<double>();
            bitrateo = new List<double>();
            pcm = new Logger();
            med = new Logger();
            mix = new Logger();
            mp3 = new Logger();
            ogg = new Logger();
            tag = new Logger();
            app = new Logger();
        }
        public long i, msg;

        Entry[] buf;
        public class Entry
        {
            public long tick;
            public long num;
            public string msg;
            public Entry()
            {
                tick = num = -1;
                msg = "";
            }
        }

        public Logger()
        {
            i = msg = 0;
            buf = new Entry[1024];
            for (int a = 0; a < buf.Length; a++)
            {
                buf[a] = new Entry();
            }
        }
        public override string ToString()
        {
            Entry e;
            lock (buf)
            {
                e = buf[i];
            }
            if (e.tick <= 0) return "not active";
            return new DateTime(e.tick, DateTimeKind.Utc)
                .ToString("yyyy-MM-dd HH:mm:ss.ffff") +
                " " + e.num.ToString().PadLeft(7) +
                " | " + e.msg;
        }
        public void a(string text)
        {
            lock (buf)
            {
                if (text == buf[i].msg)
                {
                    buf[i].num = ++msg;
                    return;
                }
                if (++i >= buf.Length) i = 0;
                Entry e = buf[i];
                e.msg = text;
                e.num = ++msg;
                e.tick = DateTime.UtcNow.Ticks;
            }
        }
        public string compile()
        {
            StringBuilder ret = new StringBuilder();
            lock (buf)
            {
                long o = i;
                while (true)
                {
                    if (buf[i].num >= 0)
                    {
                        ret.AppendLine(ToString());
                    }
                    if (--i < 0) i = buf.Length - 1;
                    if (i == o) break;
                }
            }
            return ret.ToString();
        }
    }