mutex lock

# Reprinted from: http://c4fun.cn/blog/2014/05/06/python-threading/ The thread and threading modules can be used for multi-thread operations in python. The thread module has been renamed as _ thread in Py3 and is no longer recommended. The threading

Detect memory leakage in linux-Linux general technology-Linux programming and kernel information. The following is a detailed description. This article discusses how to detect the memory leakage of C ++ programs in linux and its implementation. This

This article explains to the coders about The InnoDB type of the mysql database. The cause and solution of the deadlock occurred during table update. For more information about coders, see. Scenario description DeadlockLoserDataAccessException

The Queue module and the source code analysis Queue module provide Queue operations. queues are the most common form of data exchange between threads. This module provides three queues: Queue. Queue (maxsize): first-in-first-out, maxsize is the

Original URL: http://blog.chinaunix.net/uid-23769728-id-3173282.htmlThis blog post is very long, although this is the next article, but it is not finished, benchmark aspects of things are in progress, there are some problems I myself are talking

Original article: http://baike.baidu.com/view/974776.htmHttp://zh.wikipedia.org/wiki/POSIXhttp://www.blogjava.net/tinysun/archive/2010/05/29/322210.html I. IntroductionPOSIX thread is called Posix thread (pthread for short) and Posix thread is a

Thread/Process Communication Mode-Use global variables/shared memory-use lparam parameters in thread-use socket-use Windows and messages-use Named Pipes/anonymous pipelines-use cmd parameters-use environment variables     Thread startup, exit and

13.4 Thread Synchronization 1. Cause of thread synchronization: solve the "access conflict" problem of data. 2. Critical resource: the data shared between multiple threads is called a critical resource. I. mutex lock 1. An object is marked

Mutex lock: Lock and unlock Mutex locks refer to mutual exclusion and are the most basic synchronization form. They can be used to protect the critical fetch to ensure that only one thread is executing the code at any time. It can be used to

Source: [Url] http://www-900.ibm.com/?works/cn/linux/l-mleak/index.shtml#/url] Hongong (hcode@21cn.com)C ++ programmersJune 2003 This article discusses how to detect the memory leakage of C ++ programs in Linux and its implementation. This includes

One, synchronous lock1. Join and mutual exclusion lockThread Rob is the Gil Lock, Gil lock equivalent to execute permissions, get execution permissions to get the mutex lock lock, other threads can also Rob Gil, but if it is found that lock is still

Last year there were several projects that needed to use JavaScript mutex locks, so I wrote a few similar ones, one of which: copy the code // Published by Indream Luo // Contact: indreamluo@qq.com // Version: chinese 1.0.0! Function ($) {window.

. Thread Access MechanismThere are two kinds of relationship between tasks: 1, indirect relationship, 2, direct relationship.For example 1. Task A writes to the MO buffer. Task B reads from this buffer. Then the relationship between A and B is a

Recently, we need to add a lock mechanism to the cache layer. Some Google Documents found that APC was not implemented (as if eaccelerator was used and never used). Only one lock is available, it is also relatively simple to implement with APC

 1. Windows: 1. apicritical_section mylock; initializecriticalsection (& mylock); entercriticalsection (& mylock); unlock (& mylock); 2. mfcccriticalsection mylock; mylock. lock (); mylock. unlock (); 2. UNIX environment: 1. Create Pthread_mutex_t

Because there is no way to add a read server in a short period of time, we have made some configuration for Mysql to sacrifice the real-time data, in exchange for the life security of all servers. The specific adjustments and ideas are as

Recently, due to the increase in database read requests, there was a serious read/write lock problem. Due to Master/Slave separation, the master server quickly completed the write operation, however, a large number of select queries in the slave

Recently, due to the increase in database read requests, there was a serious read/write lock problem. Due to Master/Slave separation, the master server quickly completed the write operation, however, a large number of select queries in the slave

PrefaceMutex lock is used to ensure that only a single thread or process has mutex access to shared resources at any time. Here, the mutex in posix thread, the mutex in win32, and the critical section are used, they are collectively referred to as

Thread synchronization-Mutual exclusion lock 1. Initialize the mutex lock Pthread_mutex_init ()int Pthread_mutex_init (pthread_mutex_t *restrict Mutex, const pthread_mutexattr_t *restrict attr);Cases:pthread_mutex_t Mutex;Pthread_mutex_init (&mutex,