shm.h 1.8 KB

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  1. /* Copyright (C) 1995-1999, 2000, 2002 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #ifndef _SYS_SHM_H
  15. #define _SYS_SHM_H 1
  16. #include <features.h>
  17. #define __need_size_t
  18. #include <stddef.h>
  19. /* Get common definition of System V style IPC. */
  20. #include <sys/ipc.h>
  21. /* Get system dependent definition of `struct shmid_ds' and more. */
  22. #include <bits/shm.h>
  23. /* Define types required by the standard. */
  24. #define __need_time_t
  25. #include <time.h>
  26. #ifdef __USE_XOPEN
  27. # ifndef __pid_t_defined
  28. typedef __pid_t pid_t;
  29. # define __pid_t_defined
  30. # endif
  31. #endif /* X/Open */
  32. __BEGIN_DECLS
  33. /* The following System V style IPC functions implement a shared memory
  34. facility. The definition is found in XPG4.2. */
  35. /* Shared memory control operation. */
  36. extern int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf) __THROW;
  37. /* Get shared memory segment. */
  38. extern int shmget (key_t __key, size_t __size, int __shmflg) __THROW;
  39. /* Attach shared memory segment. */
  40. extern void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
  41. __THROW;
  42. /* Detach shared memory segment. */
  43. extern int shmdt (const void *__shmaddr) __THROW;
  44. __END_DECLS
  45. #endif /* sys/shm.h */