mmap file format

ObjectiveThe company recently developed the need to save data to a. CSV file (comma separated values) and then upload to the FTP server, for our system also has a customer system call, before completely did not contact this, so first to look at the explanation of Baidu: comma-separated values (comma-separated values,csv , sometimes referred to as character-delimited values, because delimited characters can also be not commas, and their files store tab

ELF File Format In the Linux World of Blackfin, there are two basic file formats: Flat: a binary flat file is usually called bflt. It is a relatively simple lightweight executable format based on the original A. Out format. Bflt

HEX file format learning notes In order to write a program that can perform ISP according to your own requirements, I learned about the Hex file format. Write the study notes to consolidate the learning content. The Hex file is in the unit of action. Each line starts with th

Avi is an audio videoInterleaved) is a digital audio and video file format developed by Microsoft to comply with Riff file specifications. It was originally used in MicrosoftThe video for Windows (VFW for short) environment has been95/98 and OS/2 are directly supported by most operating systems. The AVI format allows v

Parsing the hive file format in Windows RegistryAuthor: FahrenheitIntroduction We believe that you are familiar with the Registry of windows. You can use the Registry Editor (Regedit) provided by the system to access and modify the data in the registry. Intuitively, the Registry is displayed in the form shown in figure 1, which consists of the Root Key, subkey, value, and data). There are data types, includ

Gzip was first created by Jean-Loup gailly and Mark Adler for File compression in UNIX systems. We often use files suffixed with .gz in linux, which are in GZIP format. Nowadays, it has become a widely used data compression format on the Internet, or a file format. Gzip enco

I. Java Security Policy Concept Java applicationsProgramThe environment security policies are described in detail for differentCodeThe permission of different resources is expressed by a policy object. To enable the applet (or an application running under securitymanager) to execute protected behaviors, such as reading and writing files, the applet (or Java application) must obtain the permission for that operation, the security policy file is used

The executable and linking format has been a popular topic lately, as people ask why the Kernel configuration script asks whether or not to configure loading elf executables. since elf will eventually be the common object file format for Linux binaries, it is appropriate to document it a bit. last month, Eric introduced us to elf, and this month, he gives us a gu

First, let's review the main content of the previous two blogs about the class file format. In an in-depth understanding of the Java Class file format (I), I explained the location and role of the class file in the entire java architecture, and explained the magic number and

In the first article in this column, I deeply understand what a Java Virtual Machine is and what a virtual machine is. This blog is an overview of JVM. In the subsequent articles, I have been explaining the class file format. In this blog today, we will continue to explain other information in the class file. This article describes the attributes in the last part

Picture file format conversion is the core problem is to solve a variety of picture format encoding and decoding, recommended with Jimi package, can download the package from the http://java.sun.com/products/jimi/and its source code and demo. Note that Jimi provides decoding support for almost all picture formats, but the code api,gif coding problem for GIF and T

A MIDI file is a binary file, which generally has the following basic structure: File Header + Data Description The file header generally includes the file type, because the MIDI file only uses. there are two types of mid Extensio

This is useful when you develop your own auxiliary tools. The overall structure of the SWF file is composed of header + body. The file starts with a [File Header]Its structure is as follows: [Copy to clipboard] [-] Code:Byte Name Description1 signature "F" indicates the non-encrypted format, and "C" indicates the encry

First, epub is what format file There is a lot of content on the Web, epub is a free and open standard, which is a kind of content that can be "automatically rearranged", that is, the text content can be displayed in the most suitable way according to the characteristics of the reading device. The Epub file internally uses XHTML or Dtbook (an XML standard propos

If you use the office file format, you can study it. In addition, if you are a friend of the sharing software, you can consider the format conversion tool or class library. I found that a recent SourceForge project is doing this: http://b2xtranslator.sourceforge.net, please refer. Office file (Doc, xls, PPT)

GZIP, ZLIB, DEFLATE, file format from: http://apps.hi.baidu.com/share/detail/19276079 2009-12-07 19:29 Gzip was first created by Jean-loup Gailly and Mark Adler for file compression in UNIX systems. We often use the file suffix. gz in Linux, which is the gzip format