libevent 构建简单的http服务器

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

void  generic_request_handler( struct  evhttp_request  * req,  void   * arg) {

     struct  evbuffer  * return_buffer = evbuffer_new();

    evbuffer_add_printf(return_buffer, " welcome " );
    evhttp_send_reply(req,HTTP_OK, " Client " ,return_buffer    );
    evbuffer_free(return_buffer);
}

int  main( int  argc,  char   ** argv) {
     short  http_port  = 8082 ;
     char   * http_addr = " 127.0.0.1 " ;
     struct  evhttp  * http_serv = NULL;
    event_init();

    http_serv =  evhttp_start(http_addr,http_port);
    evhttp_set_gencb(http_serv,generic_request_handler,NULL);
    event_dispatch();
     return   0 ;
}