diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/shm.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/shm.h | 78 |
1 files changed, 35 insertions, 43 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/shm.h b/sysdeps/unix/sysv/linux/bits/shm.h index 6db01dd4a2..6f5f840909 100644 --- a/sysdeps/unix/sysv/linux/bits/shm.h +++ b/sysdeps/unix/sysv/linux/bits/shm.h @@ -1,6 +1,5 @@ /* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as @@ -17,10 +16,9 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef _SYS_SHM_BUF_H - -#define _SYS_SHM_BUF_H 1 -#include <features.h> +#ifndef _SYS_SHM_H +# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead." +#endif #include <sys/types.h> @@ -38,55 +36,49 @@ #define SHM_UNLOCK 12 /* unlock segment (root only) */ -__BEGIN_DECLS - /* Data structure describing a set of semaphores. */ struct shmid_ds -{ - struct ipc_perm shm_perm; /* operation permission struct */ - int shm_segsz; /* size of segment in bytes */ - __time_t shm_atime; /* time of last shmat() */ - __time_t shm_dtime; /* time of last shmdt() */ - __time_t shm_ctime; /* time of last change by shmctl() */ - int shm_cpid; /* pid of creator */ - int shm_lpid; /* pid of last shmop */ - unsigned short int shm_nattch; /* number of current attaches */ - unsigned short int __shm_npages; /* size of segment (pages) */ - unsigned long int *__shm_pages; /* array of ptrs to frames -> SHMMAX */ - struct vm_area_struct *__attaches; /* descriptors for attaches */ -}; + { + struct ipc_perm shm_perm; /* operation permission struct */ + int shm_segsz; /* size of segment in bytes */ + __time_t shm_atime; /* time of last shmat() */ + __time_t shm_dtime; /* time of last shmdt() */ + __time_t shm_ctime; /* time of last change by shmctl() */ + int shm_cpid; /* pid of creator */ + int shm_lpid; /* pid of last shmop */ + unsigned short int shm_nattch; /* number of current attaches */ + unsigned short int __shm_npages; /* size of segment (pages) */ + unsigned long int *__shm_pages; /* array of ptrs to frames -> SHMMAX */ + struct vm_area_struct *__attaches; /* descriptors for attaches */ + }; #ifdef __USE_MISC /* ipcs ctl commands */ -#define SHM_STAT 13 -#define SHM_INFO 14 +# define SHM_STAT 13 +# define SHM_INFO 14 /* shm_mode upper byte flags */ -#define SHM_DEST 01000 /* segment will be destroyed on last detach */ -#define SHM_LOCKED 02000 /* segment will not be swapped */ +# define SHM_DEST 01000 /* segment will be destroyed on last detach */ +# define SHM_LOCKED 02000 /* segment will not be swapped */ struct shminfo -{ - int shmmax; - int shmmin; - int shmmni; - int shmseg; - int shmall; -}; + { + int shmmax; + int shmmin; + int shmmni; + int shmseg; + int shmall; + }; struct shm_info -{ - int used_ids; - ulong shm_tot; /* total allocated shm */ - ulong shm_rss; /* total resident shm */ - ulong shm_swp; /* total swapped shm */ - ulong swap_attempts; - ulong swap_successes; -}; + { + int used_ids; + ulong shm_tot; /* total allocated shm */ + ulong shm_rss; /* total resident shm */ + ulong shm_swp; /* total swapped shm */ + ulong swap_attempts; + ulong swap_successes; + }; #endif /* __USE_MISC */ - -__END_DECLS - -#endif /* bits/shm_buf.h */ |