sigstack.h 1.6 KB

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  1. /* sigstack, sigaltstack definitions.
  2. Copyright (C) 1998 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  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. #ifndef _SIGNAL_H
  17. # error "Never include this file directly. Use <signal.h> instead"
  18. #endif
  19. /* Structure describing a signal stack (obsolete). */
  20. struct sigstack
  21. {
  22. __ptr_t ss_sp; /* Signal stack pointer. */
  23. int ss_onstack; /* Nonzero if executing on this stack. */
  24. };
  25. /* Possible values for `ss_flags.'. */
  26. enum
  27. {
  28. SS_ONSTACK = 1,
  29. #define SS_ONSTACK SS_ONSTACK
  30. SS_DISABLE
  31. #define SS_DISABLE SS_DISABLE
  32. };
  33. /* Minimum stack size for a signal handler. */
  34. #define MINSIGSTKSZ 4096
  35. /* System default stack size. */
  36. #define SIGSTKSZ 16384
  37. /* Alternate, preferred interface. */
  38. typedef struct sigaltstack
  39. {
  40. __ptr_t ss_sp;
  41. int ss_flags;
  42. size_t ss_size;
  43. } stack_t;