ReaderLock Class

  • Article

Helper class that makes it easier to ensure proper usage of a ReaderWriterLock for readers by providing support for IDisposable and the using keyword.

Namespace: Microsoft.Practices.CompositeUI
Assembly: Microsoft.Practices.CompositeUI (in microsoft.practices.compositeui.dll)

Syntax

'Declaration
Public Class ReaderLock
    Inherits LockBase
'Usage
Dim instance As ReaderLock

public class ReaderLock : LockBase

public ref class ReaderLock : public LockBase

public class ReaderLock extends LockBase

public class ReaderLock extends LockBase

Example

Common usage is as follows:

            ReaderWriterLock mylock = new ReaderWriterLock();
            
            // Inside some method
            using (new ReaderLock(rwLock))
            {
                // Do your safe resource read accesses here.
            }

If a timeout is specified, the TimedOut property should be checked inside the using statement:

            ReaderWriterLock mylock = new ReaderWriterLock();
            
            // Inside some method
            using (ReaderLock l = new ReaderLock(rwLock, 100))
            {
                if (l.TimedOut == false)
                {
                    // Do your safe resource read accesses here.
                }
                else
                {
                    throw new InvalidOperationException("Could not lock the resource.");
                }
            }

Inheritance Hierarchy

System.Object
   Microsoft.Practices.CompositeUI.LockBase
    Microsoft.Practices.CompositeUI.ReaderLock

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

ReaderLock Members
Microsoft.Practices.CompositeUI Namespace