The Task Parallel Library is part of .NET 4 and .NET 4.5. It is a set of APIs to enable developers to program asynchronous applications.
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1answer
34 views
Cross Thread Access to Object in ViewModel
This is a fairly straight forward question. I have a C# WPF MVVM application that call a C++ DLL to do some compilation/crunching. To update the UI C# application for progress updates I am using ...
4
votes
1answer
94 views
Simple parallel foreach loop code correctness
I have both the regular for each loop and its equivalent paralleled version. The loop simply iterates through a collection, looking for the rate key in a local db ...
5
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1answer
326 views
Writing highly asynchronous code
I am writing a new web service that will be performing a lot of large data load operations. To do so I am moving the data to a temporary table then merging the data in to the live data via a stored ...
3
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1answer
85 views
TaskScheduler that uses a dedicated thread
I'm trying to implement a TaskScheduler that runs all tasks in the order they are submitted, on a single dedicated thread. Here's my implementation, using a BlockingCollection:
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5
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2answers
1k views
A TaskScheduler that always run tasks in a specific thread
The following is an TaskScheduler that always run tasks in a thread it maintains.
When created, a name of the thread was specified. Once you schedule the first ...
4
votes
1answer
385 views
Async Queue Processing
I have a Queue that needs to try to process when anything updates in it (add, remove or update).
However, I don't want any of the callers to wait while the ...
5
votes
2answers
418 views
Listen to multiple RabbitMQ queue by task and process the message
Single app which listen to multiple RabbitMQ queue and process the message. This is working fine but not sure this implementation is right one or I am missing something.
Implementation is inspired ...
2
votes
1answer
67 views
Run the most recently requested action after finishing current, skip middle tasks
The goals for the code below are in the class summary below. Can anyone see that the code fails at any of those goals? I'm unsure how to thoroughly test it. Is there a way to keep the Queue method ...
11
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1answer
1k views
Websockets client code and making it production-ready
The following code is helpful to anyone who uses websockets in general... and is probably good template for anyone getting started in this area. I'd like to flesh this out into something that is more ...
10
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2answers
694 views
BackgroundWorker vs TPL ProgressBar Exercise
I wanted to fiddle around with the BackgroundWorker and Task classes, to see how I would implement a given task with these two ...
3
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1answer
126 views
Run control tasks asynchronously using TPL
One of my classes regularly triggers one of two asynchronous operations: a "turn on" and a "turn off" that each take about a second. I'm using this method below to make sure that they don't run ...
5
votes
1answer
201 views
Non locking UI code in WP8
I've recently started to delve into the world of windows phone 8 dev, and as a learning experience I've decided to make a stopwatch application. Now, given I've been a web guy most of my career, I've ...
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0answers
116 views
Easy way to handle AcceptMessageSessionAsync and ReceiveAsync - Windows Server ServiceBus
Attempting to jump into the Windows Server ServiceBus 1.1 code-base along with adopting the new TPL async methods. But I could not find an easy way to just spin up N number of handlers for message ...
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1answer
350 views
Implementing a cancellable “infinite” loop
I'm making a Windows service that watches a directory for new files to process them.
I hit a race condition between the file copying going on and me trying to process it. Going by a SO answer I wrote ...
2
votes
1answer
288 views
Generic Task Progress Dialog
I'm attempting to write a Progress Dialog that I can instantiate, show and then pass a task to complete to. I'm pretty new to Task Based Patterns, so please bear with me.
Ideally my goal is to be ...
5
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2answers
72 views
Is Concurrent Collection Needed Here?
I'm playing around with switching some code to using Parallel.ForEach and I have a question about whether I need to be concerned about the effects of concurrency ...
2
votes
1answer
96 views
parallel.For function
I am trying to add parallelism. The following function works. For testing purposes, calculating chunckLength is fine. However, when I allocate more cores, it seems ...
2
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1answer
152 views
Barnes-Hut implementation of the N-Body problem translated from F# to C#
I am after a peer review of a C# implementation of the Barnes-Hut algorithm which I have translated from F#. The F# version is the base for comparison, therefore the C# version is suppose to reflect ...
3
votes
1answer
471 views
Filtering a collection by an async result
I'm trying to do something like this:
var loudDogs = dogs.Where(async d => await d.IsYappyAsync);
The "IsYappyAsync" property would return a ...
1
vote
1answer
114 views
Converting a method to async
I have a method that calls a "bridge" for "TraderMarketInfo". When info is received, it checks if info IsSet and raises an event. I wan to make this method async. C# .NET4.0 VS2012
Original method:
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5
votes
2answers
8k views
C# Console Chat Server - Async/Await, TcpClient/TcpListener, NetworkStream (async)
Just looking for feedback on correctness of my understanding of async/await.
Curious about the Task.Run inside of the StartReceive() method. Resharper (or maybe just the compiler) warns against ...
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vote
2answers
80 views
TaskFactory.CompleteWhenBoth
I'm trying to construct something which would work a bit like Zip for two tasks, but I'm a bit worried about race conditions in this code.
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0
votes
1answer
194 views
Using Barrier to Implement Go's Wait Group
I have implemented a WaitGroup class to simulate WaitGroup in Go lang. Then I've found that I can use Barrier in a different manner, to achieve the same thing. My WaitGroup has some additional ...
3
votes
2answers
870 views
Tasks: exceptions and cancelation
I need to do a long running task. I've done this by executing a Task while there's a loading box on the UI. When an exception is thrown, I want to stop the task and show a msgbox to the user. If ...
3
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1answer
259 views
Need guidance using Tasks
I am doing multithreading using TPL Tasks first time. This is what i have done so far and I want to do it the right way. I will really appreciate if you could honor me with your expert advice.
I am ...
4
votes
1answer
3k views
C# 5 Async Await .Task.Factory.StartNew cancellation
I have the async code that implements cancellation token. It's working but Im not pretty sure if this is the right way to do it so I just want feedback about it.
Here is the actual code:
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7
votes
2answers
560 views
Task.Finally extension, good, bad, or ugly?
I wrote this, and it has helped to avoid the 'Some exception weren't handled' problem. Is there something glaringly wrong with this that I might have missed?
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1answer
3k views
1
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1answer
950 views
TPL Thread Leak and Memory Leak
I'm trying to track down what I suppose to be memory/thread leak in one of my programs.
My program uses a function to upload a file to a Windows Azure Storage Blob. In order to make this function ...
4
votes
2answers
361 views
UNC path exists monitor
This is my first attempt at trying to write a "monitor" class to determine if a UNC path is available. I need the monitor to not block the main thread and to also event when the UNC is toggled UP/DOWN ...
2
votes
1answer
4k views
Correct approach to wait for multiple async methods to complete
I have an IWorkflow interface defined as follows:
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