event-based-programming

Is there a Java equivalent to libevent?

阅读更多关于 Is there a Java equivalent to libevent?

问题 I've written a high-throughput server that handles each request in its own thread. For requests coming in it is occasionally necessary to do RPCs to one or more back-ends. These back-end RPCs are handled by a separate queue and thread-pool, which provides some bounding on the number of threads created and the maximum number of connections to the back-end (it does some caching to reuse clients and save the overhead of constantly creating connections). Having done all this, though, I'm

Using the Task Parallel Library on an event-based asynchronous pattern

阅读更多关于 Using the Task Parallel Library on an event-based asynchronous pattern

问题 I'm writing a networked application. Messages are sent over the transport as such: Network.SendMessage (new FirstMessage() ); I can register an event handler to be called when this message type arrives, like so: Network.RegisterMessageHandler<FirstMessage> (OnFirstMessageReceived); And the event gets fired: public void OnFirstMessageReceived(EventArgs<FirstMessageEventArgs> e) { } I'm writing a custom authentication procedure for my networked application, which requires around five messages

Using the Task Parallel Library on an event-based asynchronous pattern

阅读更多关于 Using the Task Parallel Library on an event-based asynchronous pattern

Using the Task Parallel Library on an event-based asynchronous pattern

阅读更多关于 Using the Task Parallel Library on an event-based asynchronous pattern

How to consume web service adheres to the Event-based Asynchronous Pattern?

阅读更多关于 How to consume web service adheres to the Event-based Asynchronous Pattern?

问题 I am following the example from http://msdn.microsoft.com/en-us/library/8wy069k1.aspx to consume a web service implemented (by 3rd party) using the Event-based Asynchronous Pattern . However, my program needs to do multiple calls to the DoStuffAsync() hence will get back as many DoStuffCompleted . I chose the overload which takes an extra parameter - Object userState to distinguish them. My first question is: Is it valid to cast a GUID to Object as below, where GUID is used to generate unique

Is there a Java equivalent to libevent?

阅读更多关于 Is there a Java equivalent to libevent?

I've written a high-throughput server that handles each request in its own thread. For requests coming in it is occasionally necessary to do RPCs to one or more back-ends. These back-end RPCs are handled by a separate queue and thread-pool, which provides some bounding on the number of threads created and the maximum number of connections to the back-end (it does some caching to reuse clients and save the overhead of constantly creating connections). Having done all this, though, I'm beginning to think an event-based architecture would be more efficient. In searching around I haven't found any

Using Amazon SQS with multiple consumers

阅读更多关于 Using Amazon SQS with multiple consumers

问题 I have a service-based application that uses Amazon SQS with multiple queues and multiple consumers. I am doing this so that I can implement an event-based architecture and decouple all the services, where the different services react to changes in state of other systems. For example: Registration Service : Emits event 'registration-new' when a new user registers. User Service : Emits event 'user-updated' when user is updated. Search Service : Reads from queue 'registration-new' and indexes

What's the difference between: Asynchronous, Non-Blocking, Event-Base architectures?

阅读更多关于 What's the difference between: Asynchronous, Non-Blocking, Event-Base architectures?

What's the difference between: Asynchronous , Non-Blocking , and Event-base architectures? Can something be both asynchronous and non-blocking (and event-based )? What's most important in programming, to have something: asynchronous, non-blocking and/or event-base (or all 3)? If you could provide examples, that would be great. This question is being asked because I was reading this great StackOverflow article on a similar topic but it doesn't answer my questions above. Asynchronous Asynchronous literally means not synchronous. Email is asynchronous. You send a mail, you don't expect to get a

What's the difference between: Asynchronous, Non-Blocking, Event-Base architectures?

阅读更多关于 What's the difference between: Asynchronous, Non-Blocking, Event-Base architectures?

问题 What's the difference between: Asynchronous , Non-Blocking , and Event-base architectures? Can something be both asynchronous and non-blocking (and event-based )? What's most important in programming, to have something: asynchronous, non-blocking and/or event-base (or all 3)? If you could provide examples, that would be great. This question is being asked because I was reading this great StackOverflow article on a similar topic but it doesn't answer my questions above. 回答1: Asynchronous