Several weeks ago, I wrote a post for the Windows 8 app developer blog that was all about using await and AsTask to consume WinRT async operations. I've now published a follow-up post that's all about exposing .NET tasks as WinRT async operation. In a sense, you can think about the first post as showing how to convert from ...
I’ve been asked a few times recently various questions about ExecutionContext and SynchronizationContext, for example what the differences are between them, what it means to “flow” them, and how they relate to the new async/await keywords in C# and Visual Basic. I thought I’d try to tackle some of those questions ...
Given that .NET 4.5 has only recently been released in its final form, it’s not surprising that many folks are still very new to the async/await keywords and have misconceptions about what they are and what they do (I’ve tried to clarify some of these in this Async/Await FAQ). One of the more common misconceptions is that a ...
In September, I blogged about what was new for parallelism and asynchrony in the Visual Studio 2012 Developer Preview, and in February I followed that up with a post on what was new in the Beta. Now that Visual Studio 2012 Release Candidate is out, I want to share a few thoughts on what’s new in the Release Candidate.Most new ...
Since .NET 4’s release, I’ve received several questions about a peculiar behavior of ConcurrentQueue<T> having to do with memory management.With Queue<T>, List<T>, and other such data structures in the .NET Framework, when you remove an element from the collection, the collection internally wipes out its reference...
Developers familiar with parallel programming are also familiar with a wide range of potential problems that can occur when practicing the art. One of the most well-known issues is “deadlock,” where two or more operations are waiting on each other to complete in a manner such that none of them will be able to complete.I&rsquo...
Over on the Windows 8 app developer blog, I've written a blog post about using await with WinRT. I hope you enjoy it...
Are you using the new System.Threading.Tasks.Dataflow.dll library, either from its CTPs or from the .NET 4.5 Developer Preview or Beta? We'd love to hear about it, and if you have time, what your experiences have been (good or bad). What kind of solution are you building, and how are you using TPL Dataflow in it? Has the ...
Jon Skeet recently asked me how I might go about implementing the following “asynchronous ForEach” behavior: Given what we now know about SemaphoreSlim from my previous post, here’s one way to achieve this: public static Task ForEachAsync<TSource, TResult>( this IEnumerable<TSource...
In .NET 4.5 Beta, the Stream class provides multiple virtual methods related to reading and writing: As a developer deriving from Stream, it’s helpful to understand what the base implementations do and when you can and should override them.Read, Write, FlushThe Read, Write, and Flush methods are the core synchronous ...
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