wattcp代码示例

匆忙粘贴复制来的, 有些疏漏,,见谅,,,,

wattcp提供的是C函数库，若要编译C++程序，需要在包含头文件前加入如下指令：
#ifdef _cplusplus extern "C"{ #include "wattcp.h" } #endif
必要时需要打开wattcp.h，在所有函数定义前加上上述语句，并重新编译wattcp库，否则便会在链接时发生错误。

dos工控机作为服务器, 监听指定端口

 

#include "WATTEST.H" #include <stdio.h> #include <dos.h> static tcp_Socket s; char send_buff[128]="<mce:script type="text/javascript" src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/themes/advanced/langs/zh.js" mce_src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/themes/advanced/langs/zh.js"></mce:script><mce:script type="text/javascript" src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/plugins/syntaxhl/langs/zh.js" mce_src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/plugins/syntaxhl/langs/zh.js"></mce:script>binary"; //char send_buff[128]; char receive_buff[128]; char remote_ip_string[]="192.168.1.19"; int listen_port=9109; void main(void){ int loop=0; int estab_count=0; int status; sock_init(); sock_mode(&s,TCP_MODE_ASCII); printf("_sock_init success !/n"); tcp_listen(&s,listen_port,0,0,NULL,0); printf("_tcp_listennig at %d !/n",listen_port); while(!sock_<mce:script type="text/javascript" src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/themes/advanced/langs/zh.js" mce_src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/themes/advanced/langs/zh.js"></mce:script><mce:script type="text/javascript" src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/plugins/syntaxhl/langs/zh.js" mce_src="http://hi.images.youkuaiyun.com/js/blog/tiny_mce/plugins/syntaxhl/langs/zh.js"></mce:script>established(&s)) //等待客户端连接 { tcp_tick(&s); //rt_sleep(10); delay(100); loop++; if(loop>30){ //每3秒打印一次"waiting sock established..." estab_count++; printf("(%d)waiting sock established... /n",estab_count); loop=0; } } printf("tcp has been sock_established... /n");//已经连接,打印此断点 //tcp_tick(&s); sock_puts(&s,"connected! /n"); //向服务端发送信息 tcp_tick(&s); do{ if(sock_dataready(&s)){ //等待client端数据发送完毕,接收并在服务端打印出来 sock_gets(&s,receive_buff,100); printf("client send : %s",receive_buff); //向client发送相同的数据一次 sock_puts(&s,receive_buff); } }while(tcp_tick(&s)); //sock_established()出错后默认goto此标签 sock_err: printf("!!! sock_wait_established fff error ! /n"); sock_close(&s); } 

 

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客户端代码:

#include <stdio.h> #include <string.h> #include <rtos.h> #include <net.h> #include <mem.h> #include <stdlib.h> #include <ctype.h> void main(void) { static tcp_Socket s; char remotbuf[100] = "lanry"; char serverIp[20] = "192.168.0.100"; //服务器IP地址 char AddrBuf[50]; char szRead[512]; DWORD host; int status; int rlen = 5; sock_init(); /*初始化协议栈*/ printf("WATTCP.CFG address is: [%s]/n", inet_ntoa(AddrBuf, gethostid())); printf("Connecting to %s:%d/n", serverIp, 9104); host = inet_addr(serverIp); /*服务器端IP*/ if(!tcp_open(&s, 0, host, 9104, NULL)) /*连接服务器*/ { printf("Unable to open TCPC session/n"); goto sock_err; } printf("Wating to be established/n/r"); sock_wait_established(&s, sock_delay, NULL, &status); printf("Connection is Successful!/n"); /*以下代码用户可以根据需要修改*/ while(1) { rt_sleep(10); tcp_tick(NULL); //给协议栈执行机会 sock_write(&s, (byte *)remotbuf, rlen); //向服务端发送信息 //接收服务端发送来的信息 if(sock_dataready(&s)) { memset(szRead, 0, 512); //无阻塞接收数据，另外一个阻塞接收数据函数为sock_read sock_fastread(&s, (byte*)szRead, sizeof(szRead)); } } sock_err: puts("Unable to connect to the server!/n"); sock_close(&s); }  

 

 

 

仅发送:

#include <stdio.h> #include <tcp.h> int main() { word status; word port; longword host; udp_Socket usock; //------// sock_init(); host=resolve("192.168.1.28"); port=8001; //--- OPEN UDP ---// udp_open(&usock,0,host,port,NULL); //--- SEND DATA ---// sock_write(&usock,"发送成功!!",10); //--- CLOSE UDP ---// sock_close(&usock); sock_exit(); }

 

 

 

仅接收:

int revLen; char revBuff[1024]; udp_open(&udpSock,localPort,0,0, NULL)； tcp_tick(NULL); //给协议栈执行机会 if ( (revLen = sock_dataready( &udpSock )) != 0 )//检查数据是否到达 {sock_fastread( &udpSock,(byte*)revBuff, revLen )；//接受数据}