timer_delete.c 1.5 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
  1. /*
  2. * Check: a unit test framework for C
  3. * Copyright (C) 2001, 2002 Arien Malec
  4. *
  5. * This library is free software; you can redistribute it and/or
  6. * modify it under the terms of the GNU Lesser General Public
  7. * License as published by the Free Software Foundation; either
  8. * version 2.1 of the License, or (at your option) any later version.
  9. *
  10. * This library is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13. * Lesser General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU Lesser General Public
  16. * License along with this library; if not, write to the
  17. * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  18. * MA 02110-1301, USA.
  19. */
  20. #include "libcompat.h"
  21. int timer_delete(timer_t timerid CK_ATTRIBUTE_UNUSED)
  22. {
  23. #ifdef HAVE_SETITIMER
  24. /*
  25. * If the system does not have timer_settime() but does have
  26. * setitimer() use that instead of alarm().
  27. */
  28. struct itimerval interval;
  29. /*
  30. * Setting values to '0' results in disabling the running timer.
  31. */
  32. interval.it_value.tv_sec = 0;
  33. interval.it_value.tv_usec = 0;
  34. interval.it_interval.tv_sec = 0;
  35. interval.it_interval.tv_usec = 0;
  36. return setitimer(ITIMER_REAL, &interval, NULL);
  37. #else
  38. /*
  39. * There is only one timer, that used by alarm.
  40. * Setting alarm(0) will not set a new alarm, and
  41. * will kill the previous timer.
  42. */
  43. alarm(0);
  44. return 0;
  45. #endif
  46. }