diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/shm_buf.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/shm_buf.h | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/shm_buf.h b/sysdeps/unix/sysv/linux/sys/shm_buf.h index fa1e8235d8..048aa64dc2 100644 --- a/sysdeps/unix/sysv/linux/sys/shm_buf.h +++ b/sysdeps/unix/sysv/linux/sys/shm_buf.h @@ -38,11 +38,11 @@ __BEGIN_DECLS /* Data structure describing a set of semaphores. */ struct shmid_ds { - struct ipc_perm sem_perm; /* operation permisson struct */ + struct ipc_perm shm_perm; /* operation permisson struct */ int shm_segsz; /* size of segment in bytes */ - __time_t sem_atime; /* time of last shmat() */ - __time_t sem_dtime; /* time of last shmdt() */ - __time_t sem_ctime; /* time of last change by shmctl() */ + __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() */ __pid_t shm_cpid; /* pid of creator */ __pid_t shm_lpid; /* pid of last shmop */ unsigned short int shm_nattch; /* number of current attaches */ @@ -51,6 +51,35 @@ struct shmid_ds struct vm_area_struct *__attaches; /* descriptors for attaches */ }; +#ifdef __USE_MISC + +/* ipcs ctl commands */ +#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 */ + +struct shminfo { + 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; +}; + +#endif /* __USE_MISC */ + __END_DECLS #endif /* sys/shm_buf.h */ |