mutex and semaphore

Mutex is a key. When a person takes the key, they can enter a room. When they come out, the key is handed over to the first in the queue. Generally, this method is used to serialize the access to the critical section code to ensure that the Code is

"Semaphores are used in multi-threaded multitasking, where one thread completes an action by telling another thread about the semaphore, and the other thread is doing some action (where everyone is blocking when they are semtake). The mutex is used

(RPM) critical section, mutex, Semaphore, event difference (thread synchronization) (turn) critical section, mutex, Semaphore, event difference (thread synchronization). Category: C + + Windows core programming 2012-04-10 14:55 3321 people Read

A mutex is a key that a person takes to enter a room and gives the key to the first one in the queue when it comes out. The general usage is to serialize access to the critical section code to ensure that the code is not run in parallel.Semaphore is

"The semaphore is synchronized with multi-threaded multitasking, and one thread completes an action by telling the other thread that the other thread is going to do some action (where everyone is blocking when they are semtake)." The mutex is used

Mutex)   Mutex represents a mutex data structure and is also used as a binary signal lamp. A mutex is basically a multi-task sensitive binary signal. It can be used for synchronizing multiple tasks. It is often used to protect critical code

Differences between semaphore and mutex: ScopeSemaphore: process or thread (Linux only)Mutex lock: between threads LockSemaphores: as long as the semaphores value is greater than 0, other threads can successfully sem_wait, And the semaphores value

9.5 Semaphore Kernel Object (Semaphore)(1) The composition of the semaphore① Counter: The number of times that the kernel object was used② Maximum number of resources: identifies the maximum number of resources that the semaphore can control (signed

POSIX semaphores are real-time extensions that are part of the POSIX standard system interface definition. The XSI IPC defined in the SUS (Single UNIX specification) specification also defines the system interface that people commonly refer to as

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Directory (?) [+]Seconds to kill multithreading 15th key segment, event, mutex, semaphore "abandonment" problemIn the second-kill