mutex object

multi-threaded synchronization mutex objectAuthor: VpoetMail:[email protected]The use of critical sections is described in the http://blog.csdn.net/u013018721/article/details/46637215 articleOn the issue of selling tickets between thread

Principle Analysis:A mutex is a system kernel object that can be owned by each thread and executed by anyone;After the execution is complete, use the releasemutex function to release the ownership so that other waiting threads can use it.Other

The mutex class in the system. Threading namespace is used to control the connections between multiple threads without conflict or repetition. We can regard mutex as a taxi and passengers as a thread. The passenger first waits for the car, then gets

Use of Mutex objects when thread synchronization1 Multi-threading issues that occur when a resource is sharedIn a program, if a different thread is working on the same object, there is a possibility of a problem caused by thread switching. For

Mutex, as the core object of the system, can be cross-process (the critical section won't work). We can use mutex object to prohibit Program Start again. Working ideas:First use openmutex to open a mutex object with a custom name. If it fails

I recently reviewed multithreading knowledge. Similar roles and different focuses Critical Zone: Shared ResourcesSynchronization between mutually exclusive object threadsEvent object: It is generally used in complicated areas and can transmit some

Principle Analysis:A mutex is a system kernel object that each thread can own, and who owns it can executeAfter execution, use the ReleaseMutex function to release ownership so that other waiting threads can use theOther threads can queue up with

1. What is a critical section?A: The program that accesses critical resources in each process is called a critical section (a critical resource is a shared resource that only one process is allowed to use at a time). Only one process is allowed to

Mutex object (Mutex)The kernel object can ensure that the thread has mutex access to a single resource. A mutex object contains a quantity, a thread ID, and a recursive counter. The behavior of the mutex object is the same as that of the key code

In multithreaded programs, in order to prevent the concurrency of threads, it is often necessary to use the mutex for data protection. POSIX provides phtread_mutex_t for mutually exclusive protection data. The use of mutexes requires initialization

Delphi methods for multi-thread synchronization A thread is a relatively independent and schedulable execution unit in a process. An application can have a main thread, a main thread can have multiple sub-threads, and a sub-thread can also have

Methods for multi-thread synchronization in DelphiWhen there are multiple threads, you often need to synchronize these threads to access the same data or resource. For example, assume there is a program where one thread is used to read the file into

Multi-threaded threads synchronize mutex (the function is the same as that of the criticalsection, which ensures that only one thread can access Shared resources at a certain time point, but is a kernel object. Therefore, the access speed is slower

POSIX multi-thread programming 1. advantages over multi-process Some form of additional kernel overhead is imposed to reduce performance. In most cases, IPC is not a "natural" extension of code. Generally, the complexity of the program is greatly

In the previous article, we talked about the thread code that causes exceptions. The two threads add one to the same global variable 20 times. The variable should be 40 at the end, but 21 at the end. What's going on? This problem occurs because one

Daniel RobbinsPresident/CEO, Gentoo Technologies, Inc.August 2000 POSIX Threads are a powerful means to improve code response and performance. In the second part of this three-part series, Daniel Robbins explains how to use smart gadgets called

I started to study the most important multi-threaded Global Data Reading and Writing. Combined with the example in the book, I changed it to the following situation:     Unit tst_thread3u; Interface Uses Windows, messages, sysutils, variants,

Critical Section) A convenient way to ensure that only one thread can access data at a certain time point. Only one thread is allowed to access Shared resources at any time. If multiple threads attempt to access the critical section at the same

Mutex applications for multi-thread synchronization on windows, multi-thread mutex Mutex application for multi-thread synchronization on windows Preface Thread Composition: The Zookeeper operating system schedules a certain CPU time for each

Considering the consistency of the content, I have almost rewritten this blog. In this section, I mainly introduce the synchronization between threads and threads, and put the chat tool in the next section. What is a program? A program is a set of