flock c

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

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

How to port programs containing flock to Solaris Author: BadcoffeeEmail: blog.oliver@gmail.comBlog:Http://blog.csdn.net/yayong2005Year5Month A friend's Linux source program contains the following calls:Flock (FD, lock_un) There is no problem in

Table header file #include Defines the function int flock (int fd,int operation);The function description flock () does various locking or unlocking actions on the file that the parameter FD refers to in the manner specified by the parameter

Bool flock (int handle, int operation [, int & wouldblock]);The handle of the flock () operation must be an opened file pointer. Operation can be one of the following values:1. To obtain the shared Lock (read program), set operation to LOCK_SH (PHP 4

Header file # include Defines the int flock (int fd, int operation) function ); Function Description: Flock () performs various locking or unlocking actions on the file referred to by the parameter FD according to the method specified by the

Howto: Installing Flock in Ubuntu will introduce you step by step the process of installing Flock In Ubuntu. Download the package at http://www.flock.com/download/. currently, the package is 0.7.4forlinux. Sudotarxvzfflock * .tar.gz-C/opt/sudochown

Pitfalls in crond using the flock command You need to execute a PHP script on a regular basis. The first thought is to use the crond command to implement this function. However, a strange thing was found during the execution of crond. The

Recently, I encountered a problem because I was working on php. I used the following code to lock a file handle. [Php]$ Filename = "/tmp/lock.txt "; $ Fp = fopen ($ filename, "r + ");If (! $ Fp ){Die ("open failed .");} If (flock ($ fp, LOCK_EX) {//

Recently, I encountered a problem because I was working on php. I used the following code to lock a file handle [php] & lt ;? Php $ filename = & quot;/tmp/lock.txt & quot; $ fp = fopen ($ filename, & quot; r + & quot;); if (! $ Fp) {die (& quot;