Read / write confusion lock

Question

I'm not quite sure how best to execute this multi-threaded script, so any input would be appreciated.

I have one block that reads data so that multiple threads can access at once. I have one more block that writes data, only one thread can write at any time. Also, it cannot start writing while any thread is reading data. Is there a ReaderWriterLockSlimway to go here, will it wait until the read streams are complete before blocking the stream for writing?

Answer 1

Yes, ReaderWriterLockSlimideal for frequent read / infrequent scripts.

The behavior, you guessed it, is only one writer, writers are blocked until all readers are completed, readers can’t access while the writer is in the process.

Be careful that the lock time (for reading or writing) is long enough to prevent concurrent access, and is no longer needed.

Answer 2

Yes, it looks like ReaderWriterLockSlim is what you want.

A write lock will not be obtained until read locks are executed. I suggest you read the documentation for a full description of the behavior (blocking queues, etc.):

http://msdn.microsoft.com/en-us/library/system.threading.readerwriterlockslim.aspx