printf usage

Preface: The previous chapter wrote an echo customer service side, review, customer service is the loop read the known length of the data, but more often we can not know the length of the data in advance, then how to send and receive data at this

　　/*************************************************************************> File NAME:HEX2ADD.C> Author:cat> Mail: [email protected]************************************************************************/#include #include #include #include

This is a creation in Article, where the information may have evolved or changed. Original address The CLI or "command line Interface" is a program that the user interacts with at the command prompt. Because it reduces dependencies by compiling

#include #include #include#include#includestring.h>intMainintargcChar*argv[]) {pid_t pid; intcounter; if(argc2) {printf ("Usage:%s number\n", argv[1]); Exit (1); } counter=atoi (argv[1]); if(counter2) {counter=2; } intI=1; for(; i) {PID=Fork (

Service side:Hello_server.c#include #include#includestring.h>#include#include#includevoidError_handling (Char*message);intMainintargcChar*argv[]) { intServ_sock; intClnt_sock; structsockaddr_in serv_addr; structsockaddr_in clnt_addr; Socklen_t

1.client End (Read)#include #include#includestring.h>#include#include#includevoidError_handling (Char*msg);intMainintargcChar*argv[]) { intsock_fd; structsockaddr_in serv_addr; Charmessage[ -] = {0}; intRcv_len; if(ARGC! =3) {printf ("Usage:%s

---restore content starts---I have previously written a simple sample, long time no touch, found that all have forgotten, and now need to re-consolidate.The first is to download gSOAP, unable to access the official download page, can only search the

1. Socket overviewSockets are intended to be sockets, which are used in networks to describe how different programs in a computer communicate with other computer programs.There are 3 types of sockets commonly used:1) Flow socket (Sock--stream): The

Or the homework of the experiment ~Total two files required, this is the client1#include 2#include 3#include 4#include 5#include string.h>6#include 7 8 #defineEchomax 2559 Ten intMainintargcChar*argv[]) { One intsock; A structsockaddr_in

The steps for UDP C/s programming are as shown ////server.c#include #include#include#includeinch.h>#include#includestring.h>#include#includeintMainintargcChar**argv) { if(ARGC! =2) {printf ("Usage:%s port\n", argv[0]); Exit (1); }

Concurrent ServerFirst of all, let's assume that there are two types of servers: first, the first connection request processing time is 1s, the 50th connection request processing time is 50s, the 100th connection request processing time is 100s.

A System environmentLinux operating system kernel2.4.2, installing gsoap2.6 to directory/usr/local/gsoapTwo Brief examples of use of gSOAPThe following is a simple example of a webservice that implements an addition operation, with the function that

Recently learned network programming, made some notes, concise, clear, easy to view themselves, but also hope to let more people see, the general process of network programming is this. 1. The socket creation process that accepts (server) connection

Installing MySQL-5.5.49Getting the installation package: http://mirrors.sohu.com/mysql/# install MySQL requires a dependency package yum install ncurses-devel libaio-devel-y rpm-qa ncurses-devel libaio-devel # Install compile MySQL required software

Binary installation:[[email protected] ~]# mkdir /home/lufeng/tools -p[[email protected]  ~]# cd /home/lufeng/tools   [[email protected] tools]# rz[[email  protected] tools]# tar xf mysql-5.5.49-linux2.6-x86_64.tar.gz[[email protected] 

MySQL Multi-instanceThe simple thing is to open several different service ports (such as 3306,3307, etc.) on a single machine to run multiple MySQL service processes, which provide their own services through different sockets that listen to

Rotor http://www.linuxidc.com/Linux/2015-06/119354.htmDirectoryPreparatory workOperating EnvironmentConfirm your version of the installationDownload MySQLInstall MySQLPreparing the installation EnvironmentCompiling and installingConfigure

MySQL is divided into development version and stable version (GA), the development version has the latest features, but not stable, nor completely tested, there may be serious bugs, and stable version is a long time testing, eliminate the known bugs,

0: Description1, this article is based on the experience of the online predecessors combined with their own hands-on writing, development tools used Vs2012,gsoap is gsoap-2.8;2, gSOAP provides a simple introduction to the tools1) Wsdl2h.exe:

>UDP is a non-connection-oriented unreliable network transport protocolMost of the UDP protocol is similar to the TCP protocol, except that his client program does not need to connect, but sends the data directly.>sendto () and recvfrom ()