#include <sys/types.h>

#include <event2/event-config.h>

#include <sys/stat.h>

#ifndef _WIN32

#include <sys/queue.h>

#include <unistd.h>

#include <sys/time.h>

#else

#include <winsock2.h>

#include <windows.h>

#endif

#include <signal.h>

#include <fcntl.h>

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <errno.h>

#include <event.h>

#include <event2/event.h>

int called = ;

static void

signal_cb(evutil_socket_t fd, short event, void *arg)

{

    struct event *signal = arg;

    printf("signal_cb: got signal %d\n", event_get_signal(signal));

    if (called >= )

        event_del(signal);

    called++;

}

int

main(int argc, char **argv)

{

    struct event signal_int;

    struct event_base* base;

#ifdef _WIN32

    WORD wVersionRequested;

    WSADATA wsaData;

    wVersionRequested = MAKEWORD(, );

    (void) WSAStartup(wVersionRequested, &wsaData);

#endif

    /* Initalize the event library */

//     base = event_base_new();

//

//     /* Initalize one event */

//     signal_int = evsignal_new(base, SIGINT, signal_cb, event_self_cbarg());

    event_init();

    event_set(&signal_int, SIGINT, EV_SIGNAL, signal_cb, (void *)&signal_int);

    event_add(&signal_int, NULL);

    event_dispatch();

    //event_free(signal_int);

    //event_base_free(base);

    return ();

}

#include <sys/types.h>

#include <event2/event-config.h>

#include <sys/stat.h>

#ifndef _WIN32

#include <sys/queue.h>

#include <unistd.h>

#include <sys/time.h>

#else

#include <winsock2.h>

#include <windows.h>

#endif

#include <signal.h>

#include <fcntl.h>

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <errno.h>

#include <event2/event.h>

int called = 0;

static void

signal_cb(evutil_socket_t fd, short event, void *arg)

{

	struct event *signal = arg;

	printf("signal_cb: got signal %d\n", event_get_signal(signal));

	if (called >= 2)

		event_del(signal);

	called++;

}

int

main(int argc, char **argv)

{

	struct event *signal_int;

	struct event_base* base;

#ifdef _WIN32

	WORD wVersionRequested;

	WSADATA wsaData;

	wVersionRequested = MAKEWORD(2, 2);

	(void) WSAStartup(wVersionRequested, &wsaData);

#endif

	/* Initalize the event library */

	base = event_base_new();

	/* Initalize one event */

	signal_int = evsignal_new(base, SIGINT, signal_cb, event_self_cbarg());　　　　//evsignal_new内部调用了event_new

　　　　event_add(signal_int, NULL); 
　　　　event_base_dispatch(base); 
　　　　event_free(signal_int); 
　　　　event_base_free(base); return (0); 
}