Silverlight Weak Reference Memory Leak

If your PC is experiencing a low baseline Silverlight memory leak, this guide should help you fix it.

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There Is Currently No Space Profiler For Silverlight

If you’ve ever programmed in Silverlight, you’ve probably wondered if your memory objects are being collected by the GC (garbage collector). What if obstacles will keep you in mind throughout the life of your application – did you know?

Classic .NET storage profilers do not work well with Silverlight applications. So if we have a little memory and want to investigate the problem, the only way to solve the problem is to convert this useful solution into a WPF application, which in my scenario was difficult at best, was almost impossible.

When Should You Really Use A Leak Detector?

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The internal memory leak detector I wrote is intended to be used when you suspect that one of the objects you write is not being collected, although the garbage collector must collect it. You can use a memory leak detector to track down this particular behavior.enia.

How Do I Use The Silverlight Application Memory Detector?

To use my memory leak flag, first add the object you want to track by calling the detector’s AddReference path in the object’s constructor. Then, when the object should already be garbage collected, I call the Check method to make sure it has been collected and is no longer visible in memory.

How Do I Make The Garbage Collector Retrieve Objects Even If The Memory Leak Detector Is Accessing Them?

The secret of this memory leak detector lies in how the WeakReference class works. WeakReference is definitely a class that provides the ability to reference an existing object store to prevent the object from being collected courtesy of the garbage collector. More information about the region of the WeakReference class can be found here.

The Code One – Presentation

The memory leak detector maintains a base list called elementsList , which consists of ObjectStruct details. Each element contains a WeakReference for which the trackedobject and object contain debug values. You can use StackTrace () anywhere to identify the illustrator of the tracked object. This field can help you find the manufacturer of the storage device that has leaked.

The code is broken down into three main static methods. The first two should be called, the last one, SignalDisposed , is for troubleshooting. Methods:

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main – Adds the object you want to monitor to the warehouse detector. You can choose whether to expand “StackTrace” when creating an object. The constructor object is a good place to call this method.

[Conditional (“DEBUG”)]public static empty AddReference (object obj) safe (lockObject) if possible (elementsList.Any (p => p.Reference.IsAlive && p.Reference.Target == obj)) Get well; elementsList.Add (new ObjectStruct (new WeakReference (obj), generationCounter, another StackTrace (). ToString ()));

Check – Use this method to check the memory status. A good place to be forcedThe th call of this call can be an inactive notification through your application where you can reset and collect most of the already created objects. Each call to the Check process increments the static build counter by one, giving us a method to keep track of tracked objects each time they are created. The Debugger.Break () command stops the application on an element so you can check all objects in memory.

[Conditional (“DEBUG”)]public static rollback check () lock (lockObject) infinite memUsage = GC.GetTotalMemory (true); for (int, of course i = 0; i

SignalDisposed – My experience with detecting memory leaks with a detector while working on the Firefox add-on for the Semantic Web led me to the last part about the need for boolean variables va Indicates if indicates Dispose the monitored device has been called or not. To debug the call flow, use this method in the Dispose () method to really updateAccept scripts in which the Dispose () method was called, but the object remains in memory.

[Conditional (“DEBUG”)]public static void SignalDisposed (object obj) protected (lockObject) var objectsVersSignal = elementsList.Where (p => p.Reference.IsAlive && p.Reference.Target.Equals (obj)); If (objectsToSignal.Any () && objectsToSignal.Count () == 1) var objectToSignal = objectsToSignal.First (); objectToSignal.DisposedSignaled = true;

Notes:

All three functions have a typical ("DEBUG") conditional that allows you to use a memory leak indicator in your project regardless of performance in the final version of your application. make. More information about the Conditional attribute can be found here.
The class is thread safe.