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protected override void writeDebug(string message)
        {
            if (!shouldWrite(LogLevel.Debug))
                return;

            bool b = false;
            do { gate.Enter(ref b); } while (!b);
            Console.WriteLine("Debug: " + message);
            gate.Exit();
        }

    internal struct SilverlightSpinlock
    {
        long atomic;

        public void Enter(ref bool isAcquired)
        {
            long id = Thread.CurrentThread.ManagedThreadId;
            while (Interlocked.CompareExchange(ref atomic, id, 0) != 0) { }
            isAcquired = true;
        }

        public void Exit()
        {
            long id = Thread.CurrentThread.ManagedThreadId;
            long thisAtomic = Interlocked.Exchange(ref atomic, 0);
            if (thisAtomic != id) {
                throw new Exception("Thread " + id + " exited a spinlock it didn't own! Owning thread was " + thisAtomic);
            }
        }
    }