libevent 实现http server

转自：http://www.cnblogs.com/wangkangluo1/archive/2012/05/08/2489450.html

libevent 实现http server

#include <sys/types.h>
 #include <sys/time.h>
 #include <stdlib.h>
 #include <err.h>

 #include <event.h>
 #include <evhttp.h>

 void
 root_handler(struct evhttp_request *req, void *arg)
 {
         struct evbuffer *buf;

         buf = evbuffer_new();
         if (buf == NULL)
                 err(1, "failed to create response buffer");
         evbuffer_add_printf(buf, "Hello World!/n");
         evhttp_send_reply(req, HTTP_OK, "OK", buf);
 }

 void
 generic_handler(struct evhttp_request *req, void *arg)
 {
         struct evbuffer *buf;

         buf = evbuffer_new();
         if (buf == NULL)
                 err(1, "failed to create response buffer");
         evbuffer_add_printf(buf, "Requested: %s/n", evhttp_request_uri(req));
         evhttp_send_reply(req, HTTP_OK, "OK", buf);
 }

 int
 main(int argc, char **argv)
 {
         struct evhttp *httpd;

         event_init();
         httpd = evhttp_start("0.0.0.0", 8080);

         /* Set a callback for requests to "/". */
         evhttp_set_cb(httpd, "/", root_handler, NULL);

         /* Set a callback for all other requests. */
         evhttp_set_gencb(httpd, generic_handler, NULL);

         event_dispatch();

         /* Not reached in this code as it is now. */

         evhttp_free(httpd);

         return 0;
 }

编译

gcc -g main.c -o main -levent

 

 

完