mutex lock

1. mutex) A mutex is essentially a lock. It locks the mutex before accessing shared resources and releases the lock on the mutex after the access is completed. After the mutex is locked, any other thread that tries to lock the mutex again will

  # Include # include # include pthread_mutex_t mutex = pthread_mutex_initializer;/* initialize mutex lock */pthread_cond_t cond = pthread_cond_initializer;/* initialize condition variable */void * thread1 (void *); void * thread2 (void *); int I

Transferred from: http://blog.sina.com.cn/s/blog_66cc44d00100in5b.htmlMultithreading under a Linux system follows the POSIX threading interface, called Pthread. To write multithreaded programs under Linux, you need to use the header file pthread.h,

The following code simulates "withdraw money from an ATM": When the account balance is greater than or equal to 1000, remove 1000 into the pocket. The code uses two threads at the same time to carry out the money operation, if not synchronous

1. Jthread Introduction Multithreaded architectures are often involved in actual projects. In order to provide an interface to the Winux (Windows+linux) platform with the same operating thread, the API for threading operations on the platform needs

Original Chexlong original address: http://blog.csdn.net/chexlong/article/details/7058283In the previous article in C + + implementation of the WIN32 platform on the multi-threaded mutex, this time to write a Linux platform, the same reference to

Why do I need a mutex? In a multitasking operating system, multiple tasks that run concurrently may require the same resource to be used. This process is a bit like, in the company department, I am using the printer while printing things (not yet

Hello everyone, I am camellian. Recently involved in multi-threading, because it is just contact, but also need to improve, so the first just finishing notes to share with you, I hope you pass by the great gods, a lot of adviceWell, let's get down

1. Thread Concept: Threads and processes have certain similarities, often called lightweight processes, where multiple threads in the same process willshare all of the system resources in the process, such as virtual address space, file

c++11 Multithreading – Basic use This article is only for the use of C++11 line libraries children's shoes to get started quickly, but also a simple record of their own, content comparison basis. -1. Basic use of threads-2. Mutex

Communication between processes in the Linux system environment: traffic signals-general Linux technology-Linux programming and kernel information. For details, see the following. I. Traffic Signal Overview The traffic signal is not the same as

Article Title: slab distributor analysis. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Good operating

1. The mutual exclusion lock is introduced to ensure the integrity of shared data operations.2. mutex lock is mainly used to protect critical resources.3. Each critical resource is protected by a mutex. At any time, only one thread can access the

1. In addition to the lock, the system also provides conditions to ensure the proper sequence of execution of tasks in your application. A piece serves as a gatekeeper, blocking a given thread until it represents a true condition. In this case, the

  Sender: McCartney (coolcat), email zone: Unix Mailing site: BBS shuimu Tsinghua station (Sun May 17 16:32:40 1998) 5. Secure and insecure Interfaces This chapter defines the multi-thread security level of functions and libraries.Thread

Purely personal opinion. If you have any mistakes, please correct them!I. Switch 1. it can accept four data types: Char, byte, short, int2. Default can be placed anywhere in the switch, but it will be executed only when the given condition does not

1. mutex between initialization and destruction In Linux, The pthread_mutex_t data type indicates the mutex volume, and the pthread_mutex_init function is used to initialize the mutex volume.   # Include Int pthread_mutex_init (pthread_mutex_t *

  OverviewMulti-threaded programs, as a multi-task and concurrent working method, have the following advantages:1) Improve application response. This is especially meaningful for graphic interface programs. When an operation takes a long time, the

Overview Semaphore is a primitive used to provide synchronization means between different processes or different threads of a given process. Indicates a binary semaphore used by two processes. A process can perform three operations on the semaphore:

Author: Liu Lei   This article mainly describes the thread synchronization method in C. There are a lot of online information about the basic concepts of threads. Thread Synchronization is inevitable in multi-threaded applications. In. in the Net