tst-raise.c 1.6 KB

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  1. /* Copyright (C) 2003 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #include <errno.h>
  17. #include <string.h>
  18. #include <error.h>
  19. #include <signal.h>
  20. #include <stdlib.h>
  21. #include <stdio.h>
  22. volatile int count;
  23. static void
  24. sh (int sig)
  25. {
  26. ++count;
  27. }
  28. int
  29. main (void)
  30. {
  31. struct sigaction sa;
  32. sa.sa_handler = sh;
  33. sigemptyset (&sa.sa_mask);
  34. sa.sa_flags = 0;
  35. if (sigaction (SIGUSR1, &sa, NULL) < 0)
  36. {
  37. printf ("sigaction failed: %s\n", strerror(errno));
  38. exit (1);
  39. }
  40. if (raise (SIGUSR1) < 0)
  41. {
  42. printf ("first raise failed: %s\n", strerror(errno));
  43. exit (1);
  44. }
  45. if (raise (SIGUSR1) < 0)
  46. {
  47. printf ("second raise failed: %s\n", strerror(errno));
  48. exit (1);
  49. }
  50. if (count != 2)
  51. {
  52. printf ("signal handler not called 2 times\n");
  53. exit (1);
  54. }
  55. exit (0);
  56. }