C#

class MyClass
{
   int myReadLockCount;
   int myWriteLockCount;

   void DoSomeReads()
   {
      this.AcquireReaderLock();
      try
      {
          ...
      }
      finally
      {
          this.ReleaseReaderLock();
      }
   }
   void DoSomeWrites() {...} // Similar to DoSomeReads, only writes instead of reads.

   void AcquireReaderLock() // acquire a reader, increment myReaderLockCount.
   {
       myRWLock.AcquireReaderLock(...);
       Interlocked.Increment(ref myReadLockCount);
   }
   void AcquireWriterLock() {...}; // acquires the writer, increments myWriteLockCount.
   void ReleaseReaderLock() {...}; // releases the reader, decrements myReaderLockCount.
   void ReleaseWriterLock() {...}; // releases the writer, decrements myWriteLockCount.
}

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