nptl/tst-raise1.c

   1 #include <errno.h>
   2 #include <error.h>
   3 #include <signal.h>
   4 #include <stdlib.h>
   5
   6 volatile int count;
   7
   8 void
   9 sh (int sig)
  10 {
  11   ++count;
  12 }
  13
  14 int
  15 main (void)
  16 {
  17   struct sigaction sa;
  18   sa.sa_handler = sh;
  19   sigemptyset (&sa.sa_mask);
  20   sa.sa_flags = 0;
  21   if (sigaction (SIGUSR1, &sa, NULL) < 0)
  22     {
  23       printf ("sigaction failed: %m\n");
  24       exit (1);
  25     }
  26   if (raise (SIGUSR1) < 0)
  27     {
  28       printf ("first raise failed: %m\n");
  29       exit (1);
  30     }
  31   if (raise (SIGUSR1) < 0)
  32     {
  33       printf ("second raise failed: %m\n");
  34       exit (1);
  35     }
  36   if (count != 2)
  37     {
  38       printf ("signal handler not called 2 times\n");
  39       exit (1);
  40     }
  41   exit (0);
  42 }