What is ReaderWriterLockSlim in C#?

Can you explain what ReaderWriterLockSlim is in C#?

ReaderWriterLockSlim is a synchronization primitive that allows multiple threads to read or write to a resource concurrently.

How does it differ from a regular lock?

Unlike a regular lock, ReaderWriterLockSlim allows multiple threads to read simultaneously while still providing exclusive access for writing.

When should I use ReaderWriterLockSlim instead of other locking mechanisms?

Use ReaderWriterLockSlim when you have a high read-to-write ratio, as it improves performance by allowing concurrent reads.

Can you provide a code example of how to use it?

Sure! Here's a simple example:

ReaderWriterLockSlim rwLock = new ReaderWriterLockSlim();

// Reading
rwLock.EnterReadLock();
try {
    // Read data
} finally {
    rwLock.ExitReadLock();
}

// Writing
rwLock.EnterWriteLock();
try {
    // Write data
} finally {
    rwLock.ExitWriteLock();
}