xzone reactor

[Libevent] Reactor design mode, libeventreactor The design mode of the object behavior class to sort and dispatch synchronization events. Alias: Dispatcher) The Reactor mode is a common mode for processing concurrent I/O. It is used to synchronize I/O,The central idea is to register all the I/O events to be processed on a central I/O multiplexing, and the main thread is congested on the multiplexing; once a

With the advent of IO multiplexing technology, there are many event processing modes. The synchronous I/O model is typically implemented by the reactor pattern, while the asynchronous I/O model is implemented by the proactor pattern. Reactor mode: As shown above, the reactor mode is also called a reactor

1. Standard definitionTwo I/O multiplexing modes: Reactor and ProactorGenerally, the I/O multiplexing mechanism relies on an event demultiplexer. The Separator object separates the I/O events from the event source and distributes them to the corresponding Read/write event handler (the event Handler). The developer pre-registers the events and their event handlers (or callback functions) that need to be processed, and the event separator is responsible

In the high-performance I/O design, there are two well-known modes: reactor and proactor. The reactor mode is used to synchronize I/O, while the proactor is used for asynchronous I/O operations. Before comparing these two modes, we should first understand several concepts, what is blocking and non-blocking, and what is synchronous and asynchronous, synchronization and Asynchronization are for the interacti

reactor pattern is similar to event handling in AWT: Reactor Mode participants 1.Reactor is responsible for responding to IO events, which, when they occur, are sent to the corresponding handler to handle, which is similar to the AWT thread2.Handler is responsible for non blocking behavior, similar to AWT actionlisteners, and is responsible for binding handlers

Both reactor and preactor are Io multiplexing modes. Generally, the I/O multiplexing mechanism depends on an event multiplexing (EventDemultiplexer ). The splitter object can separate the I/O events from the event source and distribute them to the corresponding read/write event processor (EventHandler ). The developer registers the event to be processed and its event processor (or callback function) in advance ). The

Generally, the I/O multiplexing mechanism relies on an event demultiplexer. The Separator object separates the I/O events from the event source and distributes them to the corresponding Read/write event handler (the event Handler). The developer pre-registers the events and their event handlers (or callback functions) that need to be processed, and the event separator is responsible for passing the request events to the event handler. The two patterns associated with event separators are

(Original)I bought the 2007.4 issue of programmer magazine yesterday and read it for the first time. One of the two high-performance I/O design patterns is eye-catching, this is a translation. I have been trying to carefully read this article for a long time. In this article, the I/O methods of the system can be divided into blocking, non-blocking synchronous and non-blocking asynchronous. Among the three methods, the non-blocking asynchronous mode has the best scalability and performance. I mai

Java, C #, and C ++. we will not mention the blocking scheme later in this article, because the blocking I/O is really not scalable, and the performance cannot meet the requirements of high-performance servers. Two Io multiplexing solutions: reactor and proactor In general, the I/O reuse mechanism is requiredEvent sharer(Event demultiplexor [1,3]). the role of the event sharer is to distribute the read/write event sources to the handlers of various r

1. Reactor mode Overview Reactor interprets "reactors" as an event-driven mechanism. Unlike common function calls, an application does not actively call an API to complete processing. Instead, the reactor reverses the event processing process, the application must provide the corresponding interfaces and register them with the

The Hollywood principle is "Don't call us, we will call you to inform you". In fact, this is the reactor mode. You don't have to keep asking if an event has happened. When it happens, you will be notified. It is generally used to process concurrent requests on the server. Let's take a look at several participants in the reactor mode. Event processor: corresponds to a descriptor to implement the services

Reactor is an event-driven architecture that ace_reactor the programmer's burden of monitoring the underlying network IO events, and typically programmers simply inherit the Ace_event_handler class, rewrite the associated interface handler, and then Ace_ The reactor object registers related events, and the definition of the event is defined in the Ace_event_handler class.Research

Reactor: an architecture pattern used for event Multi-Channel Separation and allocationGenerally, a file or device specified by a file descriptor can work in two ways: blocking and non-blocking. Blocking means that when you try to read and write the file descriptor, the program enters the waiting state if there is nothing to read at the time or it cannot be written at the moment, until something is readable or writable. For non-blocking states, if not

Currently, distributed computing Web services are prevalent, and the underlying layers of these network services are inseparable from socket operations. They all have a common structure:1. Read Request2. Decode request3. Process Service4. encode reply5. Send reply The classic network service is designed to process data in each thread: However, when the user load increases, the performance will decrease very quickly. We need to find a new solution to ensure smooth data processing. Obviously,

Transferred from: http://www.cnblogs.com/cbscan/articles/2107494.htmlTwo IO multiplexing scenarios: Reactor and ProactorIn general, the I/O multiplexing mechanism requires event Demultiplexor [1, 3]. The role of event sharing, will be those who read and write event source distributed to the processing of read and write events, like the delivery of a courier downstairs shouting: Who sent something, come and take it. The developer needs to register the

This series of articles index the "Response Spring's word Wizard"Previously summary: Reactor 3 Quick Start | Responsive Flow SpecificationThis article tests the source code2.6 TestingAutomated testing is an important means of ensuring code quality in today's highly focused devops and in a number of TDD-pursuing teams. To perform a reactor test, first make sure to add a