gistfile1.txt

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

namespace RWLockSlimTest
{
    class MainClass
    {
		/* On MS this method prints:
		(1) RR 0/False RU 0/False RW 0/False
		(2) RR 0/False RU 0/False RW 1/True
		(3) RR 0/False RU 1/True RW 1/True
		(4) RR 0/False RU 0/False RW 1/True
		(5) RR 0/False RU 0/False RW 0/False
		(6) RR 0/False RU 0/False RW 1/True
		(7) RR 0/False RU 0/False RW 0/False
		*/
        public static void Main(string[] args)
        {
            ReaderWriterLockSlim rwlock = new ReaderWriterLockSlim (LockRecursionPolicy.SupportsRecursion);

			Console.WriteLine ("(1) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.EnterWriteLock ();
			
			Console.WriteLine ("(2) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.EnterUpgradeableReadLock ();

			Console.WriteLine ("(3) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.ExitUpgradeableReadLock ();

			Console.WriteLine ("(4) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.ExitWriteLock ();

			Console.WriteLine ("(5) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.EnterWriteLock ();

			Console.WriteLine ("(6) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
			rwlock.ExitWriteLock ();

			Console.WriteLine ("(7) RR {0}/{1} RU {2}/{3} RW {4}/{5}",
				rwlock.RecursiveReadCount,
				rwlock.IsReadLockHeld,
				rwlock.RecursiveUpgradeCount,
				rwlock.IsUpgradeableReadLockHeld,
				rwlock.RecursiveWriteCount,
				rwlock.IsWriteLockHeld);
	        }
    }
}