class life, method names, and attribute names with meaningless variable-code obfuscation. For example, it might confuse the counter variable counter to "a4df3cv89g". Confusing names makes it difficult for programmers to remember, but does not affect the NET Framework interpreter. It's not hard to find out that this method doesn't do anything at the source level, so it doesn't protect your source code. The. NET reactor feature not only covers everythi
The reactor framework is the most basic framework in ACE frameworks. Other frameworks use the reactor framework more or less. This article analyzes the basic principles of the reactor architecture mode.2.1 reactor architecture Mode
For the analysis of each architecture model, we use the analytical style of references,
Pave
In a lot of practice, it seems that we always use asynchronous programming in a similar way:
Monitoring Events
Event occurrence execution corresponding callback function
Callback complete (may result in new events added to the listener queue)
Back to 1, listen to events
So we call this asynchronous Pattern the reactor pattern, such as the run loop concept in iOS development, which is actually very similar to the
descriptor is an event source, and each socket receives data after the further processing operation as an event handler. We will need to register the event processing source and its event handler for processing to a epoll-like event splitter. The event separator is responsible for waiting for events to occur. Once an event is sent, the event splitter passes the event to the corresponding processor registered by the event, and finally the processor is responsible for completing the actual read a
Through a blog post on the Lightweight network library libevent, we know that Libevent actually encapsulates/dev/poll, Kqueue, Event ports, select, poll, and Epoll event mechanisms under different operating systems, Thus providing us with a unified interface.The libevent uses the reactor I/O design pattern, and reactor is based on the synchronous I/O mechanism, so libevent is actually a library based on the
This article summarizes the description of these two models on the Internet resourcesOriginal address: http://www.cnblogs.com/dawen/archive/2011/05/18/2050358.html1. 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
1: The introduction of the jar package, which is used by MAVEN, only need to reference a jar package on the line Reactor-spring 2: Write a reactor configured bean @Configuration @EnableReactor public class Reactorconfig { @Bean (name = "Rootreactor") Public Reactor rootreactor (Environment env) { Return Reactors.reactor (). ENV (ENV). Get (); } @Bean (name =
Reactor one line of code high performance concurrent programming
Author: Research and Development-ouyang on the chainTime: 2016-12-02
Response programming is a programming paradigm which is oriented to the change of data stream propagation. It is a best practice for observer patterns, iterator patterns, and functional programming. It simplifies the development of code through particularly complex low-level practices, so it is possible to perform high-
of them are famous frameworks under python. Twisted is a single-threaded event-driven network engine. There are only a few learning materials and fewer Chinese characters. Therefore, to learn twisted, you must read the English documents, that is, twisted documentationhttp: // example. In particular, many examples are provided in core documentation and example. If these examples are all run once, your twisted can be used as an example.
I mainly use the twisted factory and Protocol framework to c
Reprint: http://blog.csdn.net/u010853261/article/details/55805216
Speaking of Netty's threading model, our first response is the classic reactor threading model, so let's explore three classic reactor threading models:
One thing we need to understand here is that the reactor threading model is based on synchronous non-blocking IO implementations. The impl
able to move the popularity of reactive programming technology to advance a big step. As a framework for supporting Spring 5 reactive programming behind the scenes, Reactor also released the 3.1.0 version accordingly.
This article will introduce you to reactive programming (reactive programming), the introduction of Reactor, and practical skills. The practical content of this article comes from the author
Http://randomtaste.appspot.com/view/page/coproc
Introduction
This article introduces the design idea of a developing C ++ service framework coproc in the concurrent processing model. based on the libevent and basic reactor models, coproc gradually implements a lightweight process and a concurrency model similar to Unix fork-wait, the ucontext coroutine mechanism is used to implement real "process" context switching. in this way, the Model Evolution fr
"Original" https://github.com/code4craft/netty-learning/blob/master/posts/ch4-reactor.mdOne: Netty, NIO, multithreading?After a long time finally updated! Before has been slow to move also because accumulation is not enough, the back is more difficult to start. During the Chinese New Year @ Li Linfeng HW released a Netty5.0 architecture analysis and source interpretation http://vdisk.weibo.com/s/C9LV9iVqH13rW/1391437855, read is also a lot of harvest. In the previous article we analyzed the stru
From: http://www.componentcn.com/html/cxsqglkj_304_5902.html
. Net reactor is a powerful functionCodeProtection and license authorization management system software is mainly used by developers to protect their. NET software.Program. Net reactor supports all programming languages that support. Net compilation. Control China Network is. net reactor is an authori
It has been more than a week since I studied saltstack. The probation period of a company is six months. The most difficult thing is that the company has no permissions in the past six months. For an O M Company, having no permissions is not the same as having no permissions. The landlord is bored, and he only has to make a small test on his own.
Reactor
Speaking of reactor, we should start with the events
readiness events for a long time and to dispatch IO processing tasks. So in a production environment, a boss thread is typically used to monitor IO-ready events, and a work thread pool is responsible for specific IO read-write processing. After the boss thread detects a new IO-ready event, it completes the assignment of the IO Operation task based on the event type and assigns the specific action to the work thread. This is actually the core idea of the rea
IO design mode: Reactor vs. ProactorOpen source products such as Redis, ACE, and event model are used in the reactor mode, while the same event handling proactor, due to operating system reasons, the relevant open source products are also few; here to learn its model structure, the focus of comparison between the two similarities and differences;Reactor Reactorre
The event handling mechanism of reactorFirst, recall the mechanism of the normal function call: The program calls a function? function execution, program wait? function returns the result and control to the program? The program continues processing.Reactor the definition of "reactor" is an event-driven mechanism. Unlike normal function calls, where an application is not actively invoking an API to complete processing, instead of
, slightly different. When the calling function returns immediately, it also tells the caller that the request has already started. The system uses a different resource or thread to complete the call, and knows the caller when it is done (for example, through a callback function). In the case of POSIX aio_read (), after invoking it, the function returns immediately, and the operating system begins the read operation in the background. That is to give the work to the kernel to complete this opera
1. DefinitionTwo I/O multiplexing modes: Reactor and ProactorGenerally, the I/O multiplexing mechanism depends on an Event Demultiplexer ). The splitter object can separate I/O events from the Event source and distribute them to the corresponding read/write Event processor (Event Handler ). Developers pre-register the event to be processed and its event processor (or callback function); the event splitter is responsible for passing request events to t
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