mutex lock

Multi-thread Analysis of JAVA-Linux general technology-Linux programming and kernel information. The following is a detailed description. · I. Source and characteristics of the JAVA language In this era of high-speed information, merchants have made

It was not long before the eAccelerator was changed to APC. After a day of operation, it was finished. The php502 error occurred, and the php-fpm was stuck and went on strike! When the php-fpm process exits abnormally, other processes cannot obtain

In nginx, the event module (EventsModule) configuration and various parameter meanings abstract: the accept_mutex syntax of the command for Nginx to process connections: accept_mutex [on | off] default value: onNginx uses the connection mutex lock

1. What is thread conflict? A thread conflict occurs when two or more threads operate on the same shared resource at the same time. A typical example is to use a global variable as a counter, and then open N threads to complete a task. After each

In the network programming, is generally multithreaded programming, this arises a problem: data synchronization and sharing. The mutex and condition variables are the two most basic components to allow the data to be shared between threads or

A total of 9 server models were summarized on UNPV3:1. Iterate server 2. Concurrent server, fork a process for each customer 3. Pre-derived subprocess, each child process calls Accept,accept no lockout protection 4. Pre-derived subprocess, protected

Programming with pthread? What is pthread? Pthread, as the standard thread library for C/C ++ programming, is actually POSIX standard thread library.   So how to understand the POSIX standard? Below are links to some materials. If you are

This article mainly introduces the simple JavaScript mutex lock related information. For more information, see how many projects last year need to use JavaScript mutex lock, here is one of them: The Code is as follows: // Published by Indream Luo/

1. Overview Gki to library libbt-brcm_gki.so (static Lib ?) To bluedroid. This layer is an adaptation layer that adapts to OS-related processes and memory-related management and can be used to transmit messages between threads.The gki_cb variable is

From: http://www.cnblogs.com/freshman0216/archive/2008/07/29/1252253.htmlThis article starts with the class relationship diagram of monitor, mutex, manualresetevent, autoresetevent, and waithandler. We hope to have a general understanding of common

1. Linux device drivers are part of the kernel. A Linux kernel module can be compiled and loaded in two ways: (1) directly compile the program into the Linux kernel and load it along with the Linux Startup; (2) compile it into a module that can be

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 the lock. Therefore,

Ngx_event_core_moduleModule: context: Typedef struct {Ngx_str_t * Name;Void * (* create_conf) (ngx_cycle_t * cycle );Char * (* init_conf) (ngx_cycle_t * cycle, void * conf );Ngx_event_actions_t actions; // defines various abstract interfaces of the

Inter-process communication (3)-semaphores and processes communication semaphores I will use several blogs to summarize several methods of communication between processes in Linux. I will write the summary at the beginning in each blog of this

Linux Device Driver Article 5: concurrency and final state in the driver, linux Article 5Summary In the previous article, I introduced the debugging method of the linux driver. This article describes the concurrency and status encountered in driver

Ruby multi-thread programming This article mainly introduces the preliminary introduction to Ruby multi-threaded programming. thread is the key and difficulty in Ruby programming learning. If you need it, refer to it. A traditional program has a

UNIX Network Programming: 2nd. 2nd volume, inter-process communication (Chinese Version) Basic Information Original Title: UNIX network programming, Volume 2: Interprocess Communications (2nd edition)Original Press: Prentice HallAuthor: (US) W.

(17th) thread resource sharing, Singleton implementation, and thread Resource Sharing [Resource Sharing Issues] For example, threads A and B both implement the add-on operation of the number Num. If no limit is imposed, A and B may obtain the

[Linux] implementation of the spinlock, linuxspinlock implementationI. What is spinlock? Spinlock, also known as spin lock, is a lock mechanism designed to protect shared resources. A spin lock is similar to a mutex lock to prevent the use of a

This chapter introduces the lock Acquisition Mechanism of "fair lock" (the fair lock in this article refers to the fair lock of mutex lock), including: for basic concepts, refer to the Code to obtain the fair lock (based on JDK1.7.0 _ 40) I.