wait function

The use of Critical segment CS, event events, mutex mutex in classic thread synchronization problems is described earlier. This article introduces the use of semaphore semaphore to solve this problem.First also to see how to use the semaphore,

Did you ever think about it? Waitabletimer is "Waiting", the previous example of the WaitForSingleObject wait function "is also waiting", which is "double wait", this is not good, too wasteful resources. In fact, as a synchronization tool, the

What a computer can actually do is essentially very simple, such as calculating the number of two numbers, and then finding an address in memory, among other things. These most basic computer actions are called Instructions (instruction). The

Original link: http://www.ruanyifeng.com/blog/2011/08/a_detailed_explanation_of_jquery_deferred_object.htmlNormal operation callback function Method 1var wait = function (DTD) {var DTD = $. Deferred (); Inside the function, create a new deferred

Overview If you want to have a deeper understanding of the Qthread in Qt, you need to know these important functions, and now you're going to introduce them. Introduction to Functions Property return value function Body

1. Create a new thread in c++11 In each C + + application, there is a default main thread, the main function, in c++11, where we can create other threads by creating objects of the Std::thread class, each std:: Thread object can be associated with a

Ucrenvirtual1_topv2.0 The Code is as follows: /*************************************** ****\Ucren Virtual Desktop V2.0 (2006-9-1)This JavaScript was writen by Dron.@ 2003-2008 Ucren.com All rights reserved.\*************************************** *

First, you should understand the concept of task-----task//This is a better than thread, or even threadpool things and is the default asynchronousTo understand async and await again:1, async only with await, used to declare the key word async method;

iOS 支持多个层次的多线程编程，层次越高的抽象程度越高，使用也越方便。实现多线程的方式有很多，我们主要学习其中的三种实现方式：NSThread，NSOpreationQueue，GCD，这三种编程方式从上到下，抽象度层次是从低到高的，抽象度越高的使用越简单，GCD是抽象程度最高的一种，也是 Apple 最推荐使用的方法。

What the basic computer of the Linux process can actually do is actually very simple, such as calculating the sum of two numbers, and finding an address in the memory. These basic computer actions are called commands ). The so-called program is such

Before reading this article, we recommend reading the following sister articles:"Second-kill multithreaded fourth" a classic multi-threaded synchronization problem"Second-kill multithreaded fifth" Classic thread synchronization key section CS"Second-

Often confusing two signals are SIGCLD and SIGCHLD, the signal SIGCLD originated from system V, the meaning of the signal and from the BSD signal sigchld inconsistent. The posix.1 signal is also known as SIGCHLD. The semantics of the signal sigchld

The mutex Kernel Object ensures that a thread exclusively accesses resources. The behavior characteristics of mutex kernel objects are similar to those of key code segments, but they are kernel objects, and key code segments are user mode objects,

Reading Notes from high-performance JavaScript Principles: 1. Put the script at the bottom it is still in the head to ensure that the normally displayed page can be loaded before js loading. Internal and external files The This seed file is about

Multi-thread synchronization using NSCondition and multi-thread nscondition There are many ways to implement multithreading in iOS. Here we will talk about the problem of using NSCondition to implement multi-thread synchronization, that is, to solve

1. Signal Set and signal set processing functions A signal set is a single vector, each of which corresponds to a signal of the Linux system. You can use the following functions to process the signal set:   # Include Int sigemptyset (sigset_t * Set

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!What a computer can actually do is essentially very simple, such as calculating the number of two numbers, and then finding an address in memory,

Orphan process and zombie processAfter the normal child processes fork their parent process, they establish a parent-child relationship.When the child process is terminated, it notifies the parent process and empties the memory it occupies and

The following content is from: http://blog.csdn.net/morewindows/article/details/7481609The use of Critical segment CS, event events, mutex mutex in classic thread synchronization problems is described earlier. This article introduces the use of

Source: CSDN Wang Wensong transfer from: Linux communeIntroduction to Linux under multi-taskingFirst of all, what do you call a multitasking system first? What are the tasks, processes, and threads, respectively? What is the difference between them?