using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

using MongoDB.Bson;
using MongoDB.Bson.Serialization;

namespace TestLookupClassMapDeadlock {
    public class C {
        public ObjectId Id;
    }

    public class X {
        public ObjectId Id;
    }

    public static class Program {
        public static void Main(string[] args) {
            var thread1 = new Thread(Start1);
            var thread2 = new Thread(Start2);

            thread1.Start();
            Thread.Sleep(TimeSpan.FromSeconds(0.5));
            thread2.Start();
            Thread.Sleep(TimeSpan.FromSeconds(0.5));

            Console.WriteLine("Waiting for threads to finish");
            thread1.Join();
            thread2.Join();
            Console.WriteLine("Threads finished");

            Console.WriteLine("Press Enter to continue");
            Console.ReadLine();
        }

        public static void Start1() {
            Console.WriteLine("Thread1: calling BsonDefaultSerializer.LookupActualType");
            BsonDefaultSerializer.RegisterDiscriminator(typeof(X), "X");
            var type = BsonDefaultSerializer.LookupActualType(typeof(object), "X");
            Console.WriteLine("Thread1: returned");
        }

        public static void Start2() {
            Console.WriteLine("Thread2: calling BsonClassMap.LookupClassMap");
            var classMap = BsonClassMap.LookupClassMap(typeof(C));
            Console.WriteLine("Thread2: returned");
        }
    }
}