flock example

In the process of simultaneous operation of the same file by multiple processes, it is very easy to cause data confusion in the file, need to lock operation to ensure the integrity of the data, the file-based lock described here, called "File

Differences between fcntl (), lockf, and flock in linux. What are the differences between fcntl (), lockf, and flock in linux? what are the differences between fcntl (), lockf, and flock? the functions of lvyilong316 are used to lock files? First,

Refer to the differences between FCNTL (), LOCKF, flock in LinuxWhat is the difference between these three functions , which are all about locking up a file?First flock and fcntl are system calls, and LOCKF is a library function . LOCKF is actually

The difference between fcntl (), LOCKF, and Flock in Linux The difference between fcntl (), LOCKF and Flock--lvyilong316 What is the difference between these three functions, which are all about locking up a file? First flock and Fcntl are system

First flock and Fcntl are system calls, and LOCKF are library functions. LOCKF is actually a fcntl package, so the LOCKF and Fcntl are the same, and the effect of locking the file is the same. The Fcntl and LOCKF are put together in most cases when

Recently I often need to SSH to several computers at the same time to do a lot of work that needs to wait and can be done at the same time. For example: 1. Let the remote computer update the kit at the same time 2. Simultaneous transfer of small

Flock (PHP 4, PHP 5) Flock-lightweight consultation file locking DescriptionBool flock (int $ handle, int $ operation [, int & $ wouldblock])PHP supports a lightweight method of locking all files in the consulting mode (that is, all access programs

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/300830151. Overview of the scenein the multi-threaded development, the mutex can be used to protect the critical resources and prevent inconsistent data, which is the most

In php, most of the operations on files will use File Locking to avoid conflicts when multiple users operate at the same time. The following small editor will test some instance analysis of File Locking exclusive operations with

Flock-lightweight consultation file lockingFlock () function prototypeBool flock (int handle, int operation [, int & wouldblock])PHP supports a lightweight method of locking all files in consultation (that is, all access programs must be locked in