regress/lib/libpthread/sigalarm/sigalarm.c

   1 /*      $NetBSD: sigalarm.c,v 1.1 2003/09/12 21:15:06 christos Exp $    */
   2
   3 /*
   4  * Regression test for sigsuspend in libpthread when pthread lib is
   5  * initialized.
   6  */
   7
   8 #include <assert.h>
   9 #include <err.h>
  10 #include <stdio.h>
  11 #include <signal.h>
  12 #include <unistd.h>
  13 #include <pthread.h>
  14
  15
  16 int alarm_set;
  17
  18 #ifdef SA_SIGINFO
  19 static void alarm_handler(int, siginfo_t *, void *);
  20 static void
  21 alarm_handler(int signo, siginfo_t *si, void *ctx)
  22 {
  23         if (si->si_signo != signo)
  24                 errx(1, "Received unexpected signal %d", signo);
  25         alarm_set = 1;
  26 }
  27 #else
  28 static void alarm_handler(int);
  29 static void
  30 alarm_handler(int signo)
  31 {
  32         if (SIGALRM != signo)
  33                 errx(1, "Received unexpected signal %d", signo);
  34         alarm_set = 1;
  35 }
  36 #endif
  37
  38 static void *
  39 setup(void *dummy)
  40 {
  41         struct sigaction sa;
  42         sigset_t ss;
  43 #ifdef SA_SIGINFO
  44         sa.sa_flags = SA_SIGINFO;
  45         sa.sa_sigaction = alarm_handler;
  46 #else
  47         sa.sa_flags = 0;
  48         sa.sa_handler = alarm_handler;
  49 #endif
  50         sigfillset(&ss);
  51         sigprocmask(SIG_SETMASK, &ss, NULL);
  52         sigemptyset(&sa.sa_mask);
  53         sigaction(SIGALRM, &sa, NULL);
  54         alarm(1);
  55         return NULL;
  56 }
  57
  58 int
  59 main(int argc, char **argv)
  60 {
  61         sigset_t set;
  62         pthread_t self = pthread_self();
  63
  64         if (pthread_create(&self, NULL, setup, NULL) != 0)
  65                 err(1, "Cannot create thread");
  66
  67         sigemptyset(&set);
  68         sigsuspend(&set);
  69         alarm(0);
  70
  71         if (!alarm_set)
  72                 errx(1, "alarm_set not set");
  73         return 0;
  74 }