使用 acl 库的网络模块编写 UDP 服务端程序代码,C代码库,德仔网

代码语言

代码分类

【C】使用 acl 库的网络模块编写 UDP 服务端程序

作者:郑树新 / 发布于2014/10/8/ 642

本例子展示了如何使用 acl 库网络模块编写一个基于 UDP 通信的服务端。本示例所在位置：acl\samples\udp_server acl 库下载地址：http://sourceforge.net/projects/acl/ github 地址：https://github.com/zhengshuxin/acl


	#include "lib_acl.h"
	
	static int __loop_count = 0;
	
	static void on_sigint(int sig acl_unused)
	{
	 printf("loop_count: %d\r\n", __loop_count);
	 exit (0);
	}
	
	static void run(const char *addr, int can_quit, int need_echo, int inter)
	{
	 char buf[4096];
	 int ret, i = 0;
	 ACL_VSTREAM *stream = acl_vstream_bind(addr, 0); /* 绑定 UDP 套接口 */
	
	 if (stream == NULL) {
	 printf("acl_vstream_bind %s error %s\r\n",
	 addr, acl_last_serror());
	 return;
	 }
	
	 printf("bind udp addr %s ok\r\n", addr);
	
	 while (1) {
	 ret = acl_vstream_read(stream, buf, sizeof(buf) - 1);
	 if (ret == ACL_VSTREAM_EOF) {
	 printf("acl_vstream_read error %s\r\n",
	 acl_last_serror());
	 break;
	 } else
	 buf[ret] = 0;
	
	 if (can_quit && strcasecmp(buf, "quit") == 0) {
	 printf("Quit\r\n");
	 break;
	 }
	
	 i++;
	 __loop_count = i;
	
	 if (need_echo) {
	 ret = acl_vstream_write(stream, buf, ret);
	 if (ret == ACL_VSTREAM_EOF) {
	 printf("acl_vtream_writen error %s\r\n",
	 acl_last_serror());
	 break;
	 }
	 }
	
	 if (i % inter == 0) {
	 snprintf(buf, sizeof(buf), "curr: %d", i);
	 ACL_METER_TIME(buf);
	 }
	 }
	
	 printf("local addr: %s, peer addr: %s, total: %d\r\n",
	 ACL_VSTREAM_LOCAL(stream), ACL_VSTREAM_PEER(stream), i);
	
	 acl_vstream_close(stream);
	}
	
	static void usage(const char *procname)
	{
	 printf("usage: %s -h [help]\r\n"
	 " -c if can quit from client quit cmd [default: false]\r\n"
	 " -i print_per_loop [default: 1000]\r\n"
	 " -e if_echo_to_client [default: false]\r\n"
	 " -s server_addr\r\n", procname);
	}
	
	int main(int argc, char *argv[])
	{
	 char addr[64];
	 int ch, can_quit = 0, need_echo = 0, inter = 1000;
	
	 acl_init();
	
	 snprintf(addr, sizeof(addr), "127.0.0.1:8888");
	
	 while ((ch = getopt(argc, argv, "hs:cei:")) > 0) {
	 switch (ch) {
	 case 'h':
	 usage(argv[0]);
	 return 0;
	 case 's':
	 snprintf(addr, sizeof(addr), "%s", optarg);
	 break;
	 case 'c':
	 can_quit = 1;
	 break;
	 case 'e':
	 need_echo = 1;
	 break;
	 case 'i':
	 inter = atoi(optarg);
	 break;
	 default:
	 break;
	 }
	 }
	
	 if (addr[0] == 0) {
	 usage(argv[0]);
	 return 1;
	 }
	
	 acl_msg_stdout_enable(1);
	 signal(SIGINT, on_sigint);
	 run(addr, can_quit, need_echo, inter);
	
	 acl_end();
	
	 return 0;
	}

试试其它关键字

　acl　　　　UDP　

同语言下

可能有用的

郑树新贡献的其它代码(3)