I am using libevent now:
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <stdio.h>
#include <event2/event.h>
struct event_base *base;
int PORT = 9999;
int BACKLOG = 5;
int create_bind_listen()
{
struct sockaddr_in my_addr;
int yes = 1;
int sock = socket(AF_INET, SOCK_STREAM, 0);
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int));
memset(&my_addr, 0, sizeof(struct sockaddr_in));
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(PORT);
my_addr.sin_addr.s_addr = INADDR_ANY;
bind(sock, (struct sockaddr*)&my_addr, sizeof(struct sockaddr));
listen(sock, BACKLOG);
return sock;
}
void cb_func(evutil_socket_t fd, short what, void *arg)
{
printf("%d\n", fd);
}
int main()
{
int sock = create_bind_listen();
struct event *ev;
base = event_base_new();
/* */
ev = event_new(base, sock,
(short)EV_READ|EV_PERSIST,
cb_func, NULL);
event_add(ev, NULL);
event_base_dispatch(base);
return 0;
}
When I compile with that:
gcc -Wall main.c -levent -levent_core
Error happened:
/tmp/cc9x1mMj.o: In function `main':
main.c:(.text+0x11b): undefined reference to `event_new'
collect2: ld returned 1 exit status
How could I fix this?
Thank you !
You need to specify the directory where your .a. files are located with the -L option:
gcc -Wall main.c -L. -levent -levent_core
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