how to read function

When we encounter a large text file size, such as more than dozens of m or even hundreds of M several g of large files, with Notepad or other editors to open often can not succeed, because they all need to put the contents of the file in memory,

Turn from: http://blog.csdn.net/linyt/article/details/1722445 Select function and I/O multi-Channel transfer For example, you can write code that reads and writes IO operations, such as reading data from a socket, using the following code: while

I have in the development work and not according to the norms of the development of colleagues to cooperate with him can not use the "happy" to describe the. Now I write the purpose of this article in addition to share a little experience with you,

Example /**** Read a line number from a file** @param string $file The path to the file* @param int $line _num The line number to read* @param string $delimiter The character that delimits lines* @return String The line this is read**/function

the study of IO amplification in Directio (IO test for reading a file: In Symptom 1, the iops of the Iostat test is more than 100, and the ioPS of the test program test is 50, about half the iostat statistic. The number of IO that the Iostat tests

MAIN.C #include #include #include #include #include int cnt = 0; void sighandler_new (int signo, siginfo_t *psigninfo, void *preserved) {int count = ++cnt; printf ("%d Enter, Signo:%d\n", count, Signo); Sleep (3); printf ("%d

Network I/O operations: (a) Read ()/write () (ii) recv ()/send () (iii) READV ()/writev () (iv) RECVMSG ()/sendmsg () (Fri) recvfrom ()/sendto () --------------------------------------------- (1) It is recommended to use the Recvmsg ()/sendmsg ()

Script This article originates from: http://phpuser.com Author: y10k translation (2002-10-15-06:02:00) --English Original: Darrell Brogdon, published in Http://www.phpbuilder.com/columns/darrell20000319.php3) Many people may have wanted to use PHP

It is well known that ~UDP is a connectionless protocol, so it is unreliable to transmit it, even if the packet is lost. However, in the writing Linux socket program, but can use a simple method, in the application layer to implement timeout

Create a database CREATE DATABASE data1220--Creating databases Go --go represents the following statement as a use data1220 on the basis of the preceding statement execution- -to determine the

MySQL middleware before the advent, for MySQL master and slave cluster, if you want to implement its read and write separation, is generally implemented in the terminal, this brings a problem, that is, the database and program coupling is too high,

In the Internet services class, the teacher said that Capriccio is the thread in user mode. The 2nd project in Library,os class is to implement a line libraries in user mode. Before using the POSIX library, I know that this is a thread libraries in

A Experimental requirementsStack Overflow + ret2libc ROP? Operating system: Ubuntu 16.04 64bit? Security mechanism: Non-performing bit protection, ASLR (memory address randomization)Open the security mechanism, ensure that XXX can bypass the above

Example of online user count statistics in PHP This example describes how to count the number of online users in PHP. We will share this with you for your reference. The details are as follows: I remember using the application object to count online

Summary of Python multi-process concurrency and multi-thread concurrent programming instances, python programming instances This example summarizes Python multi-process concurrency and multi-thread concurrency. We will share this with you for your

Including file reading, file writing, static page generation, directory deletion, etc. File read function // File read function Function PHP_Read ($ file_name ){ $ Fd = fopen ($ file_name, r ); While ($ bufline = fgets ($ fd, 4096 )){ $ Buf. = $

Linux C programming practice (2 )?? File System Programming 1. Linux file system Linux supports multiple file systems, such as ext, ext2, minix, iso9660, msdos, fat, vfat, and nfs. At the upper layer of these specific file systems, Linux provides a

Use PHP as the Shell scripting language. We all know that PHP is a very good dynamic web page development language (fast speed, short development cycle ......). However, only a few people realize that PHP can also be well written. we all know that

Linux system calling process 1. Overview system calling is a way for applications to interact with the kernel. System calling, as an interface, enables applications to enter the operating system kernel and use various resources provided by the

Common php functions. File read function functionPHP_Read ($ file_name) {$ fdfopen ($ file_name, r); while ($ buflinefgets ($ fd, 4096) {$ buf. $ bufline;} fclose ($ fd); return $ buf ;}? File reading function // File read function Function