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From: http://blog.csdn.net/dancing999/archive/2008/01/13/2042473.aspx   Example 1: two processes map common files to implement shared memory communicationExample 1 contains two subprograms: map_normalfile1.c and map_normalfile2.c. Compile two

Chinese version of programming in Lua -- 8. Compilation, execution, and errors Transferred from http://www.lifangjin.com/(liangfeng collection Li fangjin's personal blog)Although we use Lua as an interpreted language Code Pre-editing is translated

Http://www.xxlinux.com/linux/article/development/soft/20090828/17508.html   I believe that most programming in Unix/LinuxProgramThey all have the Super classic masterpiece apue. In this book, the author explains DUP/dup2 previously mentioned

Find command Exec Find is a commonly used Linux Command, but we generally look for it not only, but also further operations. At this time, the role of exec becomes apparent. Exec explanation: -The exec parameter is followed by the command, and its

  File Access permission-detailed explanation of mode bit problems I. Preface========== This article describes how to set the access permissions for common files and directories in Linux. This article is written for beginners with a little

Keywords: CVs, VSS, version control, configuration management system Because of its open source code and completely free of charge, CVS has won the hearts of many commercial software companies, and uses cvs for Version Control in project development.

Overview This article describes how to use a memory ing file to modify a large file: Add a piece of data before the memory of a large file. To use a memory ing file, perform the following steps: Create or open a file kernel object to identify the

Shared memory is the most useful communication method between processes and the fastest IPC format. The shared memory of two different processes A and B means that the same physical memory is mapped to the process address space of process a and

How can I prevent header files from being repeatedly referenced? There are two methods:1. Method 1:Use: # pragma once 2> Method 2:Use: # ifndef # define # endifExample: # Ifndef XXXXXXX (a name should be unique as far as possible) # Define XXXXXXX

In a C program, a file is represented by a file pointer or file descriptor. Iso c Standard I/0 library functions (fopen, fclose, fread, fwrite, fscanf, fprintf, etc.) Use File pointers, Unix I/O functions (Open, close, read, write, IOCTL) use the

Hard link and symbolic link (soft link ):One of the most important features of a Linux file system is its file link. The link is a reference to the file, so that you can see the file in the file system. The file stored in the disk partition is

Social Security Series 2-file system and Social Security Series 2 Cards allow you to create your own file system in the available space. Supports multi-level directory structure. Files in the same-layer directory cannot have the same ID (identifier

Linux ln command details and usage, Linux ln command details Linux ln command details and usage Ln is a very important command in linux. Its function is to create a different link for a file in another location. The most common parameter of this

Differences between soft links and hard links in Linux Ln is another important command in linux. Its function is to create a synchronization link for a file in another location. when we need to use the same file in different directories, we do not

14. ios Data Access IOSApplicationCommon Data Storage Methods LXML property list (plist) archive lPreference (preference setting) lNSKeyedArchiver archive (NSCoding) lSQLite3lCoreData Application sandbox L each iOS application has its own

Before discussing the delivery process of local emails, let's clarify the definitions of "local", "foreign", and "virtual" emails and the related MDA. PostfixShipping Agent The postfix determines whether to accept the email Based on the email

This article describes the principles of web form, the relationship between aspx and Aspx. CS, how to compile and parse. net, and how to render HTML. A single file, excluding the rear Code The usage and features of Aspx. ------------------------

1. Add knowledge points: it can be summarized as four major stepsA) Selection of placement categories: select the default category to which the knowledge points are placed.B) Add: click "File Management", "Knowledge Point-Add", or "add" under

[Reproduced from: http://www.cppblog.com/szhoftuncun/archive/2007/10/31/35356.html]# Difference between Pragma once and # ifndef Specifies that the file will be encoded ded (opened) only once by the compiler when compiling a source code file.1 #

Shared memory is the most useful communication method between processes and the fastest IPC format. The shared memory of two different processes A and B means that the same physical memory is mapped to the process address space of process a and