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.NET Parallel Programming
.NET Parallel Programming
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    .NET Parallel Programming

    All about Async/Await, System.Threading.Tasks, System.Collections.Concurrent, System.Linq, and more…

    Async Archives | .NET Parallel Programming

    Tasks, Monads, and LINQ
    Tasks, Monads, and LINQ
    Avatar Stephen Toub - MSFT April 3, 2013 Apr 3, 2013 04/3/13
    A few years back, Wes Dyer wrote a great post on monads, and more recently, Eric Lippert wrote a terrific blog series exploring monads and C#. In that series, Eric alluded to Task<TResult> several times, so I thought I’d share a few related thoughts on Task<TResult> and the async/await keywords.As both Wes and Eric highlight...

    4.NET 4.5Async
    “Invoke the method with await”… ugh!
    “Invoke the method with await”… ugh!
    Avatar Stephen Toub - MSFT March 13, 2013 Mar 13, 2013 03/13/13
    I can be a bit sensitive when it comes to language and how concepts are conveyed.  I think it’s important to be accurate, even if not precise, when describing what something is or how to use it, as otherwise the folks to whom you’re communicating can easily form the wrong mental model for that thing.  Having a good mental...

    Comments are closed.0.NET 4.5Async
    MVP Summit presentation on async
    MVP Summit presentation on async
    Avatar Stephen Toub - MSFT February 20, 2013 Feb 20, 2013 02/20/13
    Lucian Wischik and I presented an "async clinic" at the MVP Summit in Bellevue this week.  The async/await keywords in C# and Visual Basic drastically simplify asynchronous programming, but that of course doesn't mean that using them is without any gotchas: the goal of the discussion was to highlight some of the key areas in ...

    1.NET 4.5Async
    Psychic Debugging of Async Methods
    Psychic Debugging of Async Methods
    Avatar Stephen Toub - MSFT January 28, 2013 Jan 28, 2013 01/28/13
    These days it’s not uncommon for me to receive an email or read a forum post from someone concerned about a problem they’re experiencing with an async method they’ve written, and they’re seeking help debugging the issue.  Sometimes plenty of information about the bug is conveyed, but other times the communication ...

    Comments are closed.0.NET 4.5Async
    Cooperatively pausing async methods
    Cooperatively pausing async methods
    Avatar Stephen Toub - MSFT January 13, 2013 Jan 13, 2013 01/13/13
    Recently I was writing an app that processed a bunch of files asynchronously.  As with the Windows copy file dialog, I wanted to be able to provide the user with a button that would pause the processing operation.To achieve that, I implemented a simple mechanism that would allow me to pass a “pause token” into the async method...

    Comments are closed.0.NET 4.5Async
    How do I cancel non-cancelable async operations?
    How do I cancel non-cancelable async operations?
    Avatar Stephen Toub - MSFT October 5, 2012 Oct 5, 2012 10/5/12
    This is a question I hear relatively frequently: “I have an async operation that’s not cancelable.  How do I cancel it?” The construction of the question often makes me chuckle, but I understand and appreciate what’s really being asked.  The developer typically isn’t asking how to cancel the operation...

    4.NET 4.5Async
    Forking in async methods
    Forking in async methods
    Avatar Stephen Toub - MSFT September 11, 2012 Sep 11, 2012 09/11/12
    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 ...

    Comments are closed.0.NET 4.5Async
    TPL Dataflow NuGet Package for .NET 4.5
    TPL Dataflow NuGet Package for .NET 4.5
    Avatar Stephen Toub - MSFT August 21, 2012 Aug 21, 2012 08/21/12
    As just announced on the Base Class Libraries (BCL) team blog, the RTM release of TPL Dataflow is now available.Enjoy...

    Comments are closed.0.NET 4.5Async
    Implementing Then with Await
    Implementing Then with Await
    Avatar Stephen Toub - MSFT August 15, 2012 Aug 15, 2012 08/15/12
    In a post a while ago, I talked about sequential composition of asynchronous operations.  Now that we have the async/await keywords in C# and Visual Basic, such composition is trivial, and async/await are indeed the recommended way to achieve such composition with these languages.However, in that post I also described a few “Then&...

    Comments are closed.0.NET 4.5Async
    Processing tasks as they complete
    Processing tasks as they complete
    Avatar Stephen Toub - MSFT August 2, 2012 Aug 2, 2012 08/2/12
    Recently I’ve had several folks ask me about how to process the results of tasks as those tasks complete.A developer will have multiple tasks representing asynchronous operations they’ve initiated, and they want to process the results of these tasks, e.g. List<Task<T>> tasks = …; foreach(var t in tasks...

    Comments are closed.0.NET 4.5Async
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