ReaderWriterLockSlim.IsReadLockHeld Property

Reference

Definition

Namespace:: System.Threading

Assemblies:: System.Core.dll, System.Threading.dll

Assemblies:: netstandard.dll, System.Threading.dll

Assembly:: System.Threading.dll

Assembly:: System.Core.dll

Assembly:: netstandard.dll

Source:: ReaderWriterLockSlim.cs

Source:: ReaderWriterLockSlim.cs

Source:: ReaderWriterLockSlim.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets a value that indicates whether the current thread has entered the lock in read mode.

public:
 property bool IsReadLockHeld { bool get(); };

public bool IsReadLockHeld { get; }

member this.IsReadLockHeld : bool

Public ReadOnly Property IsReadLockHeld As Boolean

Property Value

Boolean

true if the current thread has entered read mode; otherwise, false.

Examples

The following example shows how to use the IsReadLockHeld property to generate an assert if the current thread has entered read mode unexpectedly.

using (ReaderWriterLockSlim rwLock = new ReaderWriterLockSlim()) {

Using rwLock As New ReaderWriterLockSlim()

Debug.Assert(!rwLock.IsReadLockHeld,
    String.Format("Thread {0} already held the read lock when MyFunction began executing.",
                  Thread.CurrentThread.ManagedThreadId));

Debug.Assert(Not rwLock.IsReadLockHeld, _
    String.Format("Thread {0} already held the read lock when MyFunction began executing.", _
                  Thread.CurrentThread.ManagedThreadId))

Remarks

This property is intended for use in asserts or for other debugging purposes. Do not use it to control the flow of program execution.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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