what mutex lock

1. Overview 2. process, thread, and information sharing There are multiple ways to share information between Unix processes: Pay attention to the location of the kernel The two processes on the left share some information stored on a file in the

1.1 Process Synchronization Mechanism (1) atomic operation: the so-called atomic operation means that the operation will never be interrupted by any other task or event before execution is completed. That is to say, it is the smallest execution unit,

We all know that before jdk1.5, Java usually requires programmers to complete code implementation independently. Of course, some open-source frameworks provide these functions, however, these functions are not provided by JDK for ease of use. When

Signal lampZheng yanxing Mlinux@163.com National Defense Emy of Computer Science Introduction:The traffic signal is not the same as that of other processes. It mainly provides resource access control for inter-process sharing. It is equivalent to a

The biggest benefit of using conditional variables is to avoid being busy. It is equivalent to the signal in multiple threads. The condition variable is something in the thread, that is, waiting for the occurrence of a condition and the signal is

In Linux, the concept and processing of threads and processes are not strictly differentiated like other operating systems. in Linux, a thread is also called a lightweight process. in addition, the important difference between windows and Windows

I. Introduction The previous section describes the usage of the atomic mutex lock mechanism in OpenMP. This section describes the usage of the Critical Zone mutex lock mechanism. The critical section here is similar to the criticalsection in windows.

Design concurrent queues #include #include using namespace std;template class Queue { public: Queue( ) { pthread_mutex_init(&_lock, NULL); } ~Queue( ) { pthread_mutex_destroy(&_lock); } void push(const T&

Original Title: multicore Application Programming: for Windows, Linux, and Oracle Solaris Author: Darryl Gove: guo Qing Xia series name: Turing Program Design Series Press: People's post and telecommunications Press ISBN: 9787115317506 mounting time:

Introduction to the code of Kinect bridge OpenCV KinectBridge With OpenCV  KinectBridge With MATLAB & OpenCV profile and project download Driver version: Kinect forWindows SDK v1.7 Project name: KinectBridgeWithOpenCVBasics-D2D Programming Language:

  [Overview]Libevent is an event-triggered network library. It is applicable to Windows, Linux, BSD, and other platforms. It uses select, epoll, Kqueue and other systems call the management event mechanism. The famous distributed cache software

The device is not identified by its file name, butID of the Primary and Secondary device numbers of the file(The file name and the file's primary and secondary device numbers are displayed in the inode data area of the parent directory of the device

Linux has developed rapidly in recent years. Many small and medium-sized enterprise websites have installed Linux operating systems. This article focuses on Linux kernel memory management, especially the mechanism provided by slab allocation. We

Make Duilib multi-threaded programming easier, duilib multi-threaded programming 1. Duilib cannot develop multi-threaded programs? I remember a long time ago I heard someone say that Duilib's multi-thread support is poor because the controls in

This articleArticleIt is 100th blogs. This article summarizes the good books I have read and provides good guidance to later users. Reading books is more systematic, comprehensive, and more efficient than searching on the Internet. In addition, it

Fork is not allowed in multi-threaded programs Code of design for C ++ on UNIX 3 Criterion 3: fork is not allowed in multithreaded programs When fork is used in a multi-threaded program, it may cause various problems. A typical example is that the

1. Basic Concepts The spin lock is similar to the mutex lock, but the spin lock does not cause the caller to sleep. If the spin lock has been maintained by other execution units, the caller always loops there to see if the lock owner has released

6, Using a Thread Group A thread group is a way to manage threads. It logically associates threads with each other. Generally, all threads belong to the Default thread group (it is a class constant ). If a new thread group is created, the new thread

Linux Device Driver clock management (3) ---- my cake What is missing in the 21st century? There is no shortage of programmers, no shortage of diaosi programmers, programmers everywhere, various training institutions, more than n programmers are

This article mainly introduces the details of Golang mutual exclusion lock internal implementation, small series feel very good, and now share to everyone, but also for everyone to do a reference. Let's take a look at it with a little knitting. The