external/bsd/libevent/dist/sample/signal-test.c

   1 /*      $NetBSD: signal-test.c,v 1.1.1.1 2013/04/11 16:43:31 christos Exp $     */
   2 /*
   3  * Compile with:
   4  * cc -I/usr/local/include -o signal-test \
   5  *   signal-test.c -L/usr/local/lib -levent
   6  */
   7
   8 #include <sys/types.h>
   9
  10 #include <event2/event-config.h>
  11
  12 #include <sys/stat.h>
  13 #ifndef WIN32
  14 #include <sys/queue.h>
  15 #include <unistd.h>
  16 #include <sys/time.h>
  17 #else
  18 #include <winsock2.h>
  19 #include <windows.h>
  20 #endif
  21 #include <signal.h>
  22 #include <fcntl.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <errno.h>
  27
  28 #include <event.h>
  29
  30 #ifdef _EVENT___func__
  31 #define __func__ _EVENT___func__
  32 #endif
  33
  34 int called = 0;
  35
  36 static void
  37 signal_cb(evutil_socket_t fd, short event, void *arg)
  38 {
  39         struct event *signal = arg;
  40
  41         printf("%s: got signal %d\n", __func__, EVENT_SIGNAL(signal));
  42
  43         if (called >= 2)
  44                 event_del(signal);
  45
  46         called++;
  47 }
  48
  49 int
  50 main(int argc, char **argv)
  51 {
  52         struct event signal_int;
  53         struct event_base* base;
  54 #ifdef WIN32
  55         WORD wVersionRequested;
  56         WSADATA wsaData;
  57
  58         wVersionRequested = MAKEWORD(2, 2);
  59
  60         (void) WSAStartup(wVersionRequested, &wsaData);
  61 #endif
  62
  63         /* Initalize the event library */
  64         base = event_base_new();
  65
  66         /* Initalize one event */
  67         event_assign(&signal_int, base, SIGINT, EV_SIGNAL|EV_PERSIST, signal_cb,
  68             &signal_int);
  69
  70         event_add(&signal_int, NULL);
  71
  72         event_base_dispatch(base);
  73         event_base_free(base);
  74
  75         return (0);
  76 }
  77