基于Linux的通讯

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应用背景 This is the server and client code in C for a simple chat program for multiple client communication. This repository contains code for a very simple chat program implemented on the linux system, using base system libraries and the C programming language. The program consists of two major components, the first being the server program and the second is the Client program. 关键技术 The server program maintains a list of clients and also a queue of client messages. It uses semaphores to make sure synchronisation errors do not occur. The server program accepts one optional input argument – listen_port_number. If this argument is missed, the server will use the default port number 3500 (defined in the provided header file chat_server.h). Once it starts, it runs forever. To ter

在linux中，利用libcurl实现http请求，调用webservice的REST接口！libcurl主要功能就是用不同的协议连接和沟通不同的服务器~也就是相当封装了的sockPHP 支持libcurl（允许你用不同的协议连接和沟通不同的服务器）。, libcurl当前支持http, https, ftp, gopher, telnet, dict, file, 和ldap 协议。libcurl同样支持HTTPS证书授权，HTTP POST, HTTP PUT, FTP 上传（当然你也可以使用PHP的ftp扩展）, HTTP基本表单上传，代理，cookies,和用户认证。

基于libcurl 的下载软件，可移植，界面为QT编写，嵌入式版本,可直接编译，需要先安装libcurl 库，代码比较简单。 以GSOAP 为介质，QT 为操作节目，调用底层curl，可直接提取GSOAP 做其他修改！

基于sift算法的图片匹配，可检测图片是否来源于同一个镜头、场景，或是否来源于同一张图片；图片旋转、或抠取其中一部分也能检测出来

编译原理课程：egrep命令c++/bison 实现 详见文件中readme文件 usage： this_program "regular_expression" [output.txt]

实现FTP登陆ftp服务器，上传下载文件以及目录，可递归上传目录；可更改目录，删除和创建目录，可设置数据传输模式等等，功能齐全通俗易懂。

adpcm格式g726语音编码程序，带有源码，以及原pcm声言格式文件，可以将linux下直接编译执行，将pcm格式编码成g726，相信对学习g726的朋友会有一些帮助。谢谢。

资源描述利用python 代码实现linux系统下，屏幕截图！

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