threadpool

Alright...I've given the site a fair search and have read over many posts about this topic. I found this question: Code for a simple thread pool in C# especially helpful. However, as it always seems, what I need varies slightly. I have looked over the MSDN example and adapted it to my needs somewhat. The example I refer to is here: http://msdn.microsoft.com/en-us/library/3dasc8as(VS.80,printer).aspx My issue is this. I have a fairly simple set of code that loads a web page via the HttpWebRequest and WebResponse classes and reads the results via a Stream . I fire off this method in a thread as

As some may have seen in .NET 4.0, they've added a new namespace System.Threading.Tasks which basically is what is means, a task. I've only been using it for a few days, from using ThreadPool. Which one is more efficient and less resource consuming? (Or just better overall?) The objective of the Tasks namespace is to provide a pluggable architecture to make multi-tasking applications easier to write and more flexible. The implementation uses a TaskScheduler object to control the handling of tasks. This has virtual methods that you can override to create your own task handling. Methods include

This question should be a little simpler than my last few. I've implemented the following work queue in my program: Pool.h: // tpool class // It's always closed. :glasses: #ifndef __POOL_H #define __POOL_H class tpool { public: tpool( std::size_t tpool_size ); ~tpool(); template< typename Task > void run_task( Task task ){ boost::unique_lock< boost::mutex > lock( mutex_ ); if( 0 < available_ ) { --available_; io_service_.post( boost::bind( &tpool::wrap_task, this, boost::function< void() > ( task ) ) ); } } private: boost::asio::io_service io_service_; boost::asio::io_service::work work_;

I have the following code that throws an exception: ThreadPool.QueueUserWorkItem(state => action()); When the action throws an exception, my program crashes. What is the best practice for handling this situation? Related: Exceptions on .Net ThreadPool Threads If you have access to action 's source code, insert a try/catch block in that method; otherwise, create a new tryAction method which wraps the call to action in a try/catch block. You can add try/catch like this: ThreadPool.QueueUserWorkItem(state => { try { action(); } catch (Exception ex) { OnException(ex); } }); If you're using .Net 4

Is it possible to create a thread pool using boost's thread? i was looking all over boost's libs and I couldn't find a thread pool manager (or something like that)... Is there a way to do it? tnx! There is an unofficial (yet) threadpool in boost. But it's not a problem to implement one yourself especially if great genericity is not a primary goal. Idea: your threadpool can be parametrized with TaskType type and the number of workers. The TP must be given the handler function which takes TaskType. TP contains a queue of added tasks. The real thread function just takes a task from the queue and

What is a good open source implementation of a thread pool for C++ to use in production code (something like boost)? Please provide either your own example code or a link to example code usage. I think it is still not accepted into Boost, but a good staring point: threadpool . Some example of usage, from the web site: #include "threadpool.hpp" using namespace boost::threadpool; // Some example tasks void first_task() { ... } void second_task() { ... } void third_task() { ... } void execute_with_threadpool() { // Create a thread pool. pool tp(2); // Add some tasks to the pool. tp.schedule(