diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/shm.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/shm.h | 73 |
1 files changed, 34 insertions, 39 deletions
diff --git a/libc/sysdeps/linux/common/bits/shm.h b/libc/sysdeps/linux/common/bits/shm.h index 18246c3bd..c7e415726 100644 --- a/libc/sysdeps/linux/common/bits/shm.h +++ b/libc/sysdeps/linux/common/bits/shm.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 2000, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -35,27 +35,28 @@ #define SHM_LOCK 11 /* lock segment (root only) */ #define SHM_UNLOCK 12 /* unlock segment (root only) */ +/* Segment low boundary address multiple. */ +#define SHMLBA (__getpagesize ()) +extern int __getpagesize (void) __THROW __attribute__ ((__const__)); + /* Type to count number of attaches. */ -typedef unsigned long int shmatt_t; +typedef unsigned short shmatt_t; /* Data structure describing a set of semaphores. */ -struct shmid_ds - { - struct ipc_perm shm_perm; /* operation permission struct */ - size_t shm_segsz; /* size of segment in bytes */ - __time_t shm_atime; /* time of last shmat() */ - unsigned long int __unused1; - __time_t shm_dtime; /* time of last shmdt() */ - unsigned long int __unused2; - __time_t shm_ctime; /* time of last change by shmctl() */ - unsigned long int __unused3; - __pid_t shm_cpid; /* pid of creator */ - __pid_t shm_lpid; /* pid of last shmop */ - shmatt_t shm_nattch; /* number of current attaches */ - unsigned long int __unused4; - unsigned long int __unused5; - }; +struct shmid_ds { + struct ipc_perm shm_perm; /* operation perms */ + int shm_segsz; /* size of segment (bytes) */ + __kernel_time_t shm_atime; /* last attach time */ + __kernel_time_t shm_dtime; /* last detach time */ + __kernel_time_t shm_ctime; /* last change time */ + __kernel_ipc_pid_t shm_cpid; /* pid of creator */ + __kernel_ipc_pid_t shm_lpid; /* pid of last operator */ + unsigned short shm_nattch; /* no. of current attaches */ + unsigned short shm_unused; /* compatibility */ + void *shm_unused2; /* ditto - used by DIPC */ + void *shm_unused3; /* unused */ +}; #ifdef __USE_MISC @@ -67,27 +68,21 @@ struct shmid_ds # define SHM_DEST 01000 /* segment will be destroyed on last detach */ # define SHM_LOCKED 02000 /* segment will not be swapped */ -struct shminfo - { - unsigned long int shmmax; - unsigned long int shmmin; - unsigned long int shmmni; - unsigned long int shmseg; - unsigned long int shmall; - unsigned long int __unused1; - unsigned long int __unused2; - unsigned long int __unused3; - unsigned long int __unused4; - }; - -struct shm_info - { +struct shminfo { + int shmmax; + int shmmin; + int shmmni; + int shmseg; + int shmall; +}; + +struct shm_info { int used_ids; - unsigned long int shm_tot; /* total allocated shm */ - unsigned long int shm_rss; /* total resident shm */ - unsigned long int shm_swp; /* total swapped shm */ - unsigned long int swap_attempts; - unsigned long int swap_successes; - }; + unsigned long shm_tot; /* total allocated shm */ + unsigned long shm_rss; /* total resident shm */ + unsigned long shm_swp; /* total swapped shm */ + unsigned long swap_attempts; + unsigned long swap_successes; +}; #endif /* __USE_MISC */ |