sigset-cvt-mask.h 1.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243
  1. /* Convert between lowlevel sigmask and libc representation of sigset_t.
  2. Linux version.
  3. Copyright (C) 1998-2019 Free Software Foundation, Inc.
  4. This file is part of the GNU C Library.
  5. Contributed by Joe Keane <jgk@jgk.org>.
  6. The GNU C Library is free software; you can redistribute it and/or
  7. modify it under the terms of the GNU Lesser General Public
  8. License as published by the Free Software Foundation; either
  9. version 2.1 of the License, or (at your option) any later version.
  10. The GNU C 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. You should have received a copy of the GNU Lesser General Public
  15. License along with the GNU C Library; if not, see
  16. <http://www.gnu.org/licenses/>. */
  17. static inline int __attribute__ ((unused))
  18. sigset_set_old_mask (sigset_t *set, int mask)
  19. {
  20. unsigned long int *ptr;
  21. int cnt;
  22. ptr = &set->__val[0];
  23. *ptr++ = (unsigned int) mask;
  24. cnt = _SIGSET_NWORDS - 2;
  25. do
  26. *ptr++ = 0ul;
  27. while (--cnt >= 0);
  28. return 0;
  29. }
  30. static inline int __attribute__ ((unused))
  31. sigset_get_old_mask (const sigset_t *set)
  32. {
  33. return (unsigned int) set->__val[0];
  34. }