diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/mman.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/mman.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/mman.h b/sysdeps/unix/sysv/linux/sys/mman.h index b05738d8e4..9f0ef72100 100644 --- a/sysdeps/unix/sysv/linux/sys/mman.h +++ b/sysdeps/unix/sysv/linux/sys/mman.h @@ -17,10 +17,6 @@ License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* These are the bits used by 4.4 BSD and its derivatives. On systems - (such as GNU) where these facilities are not system services but can be - emulated in the C library, these are the definitions we emulate. */ - #ifndef _SYS_MMAN_H #define _SYS_MMAN_H 1 @@ -70,6 +66,10 @@ Cambridge, MA 02139, USA. */ #define MADV_WILLNEED 3 /* Will need these pages. */ #define MADV_DONTNEED 4 /* Don't need these pages. */ +/* Flags to `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all current mappings. */ +#define MCL_FUTURE 2 /* Lock all future mappings. */ + #include <sys/cdefs.h> __BEGIN_DECLS @@ -106,6 +106,22 @@ int msync __P ((__caddr_t __addr, size_t __len)); for the region starting at ADDR and extending LEN bytes. */ int madvise __P ((__caddr_t __addr, size_t __len, int __advice)); +/* Cause all currently mapped pages of the process to be memory resident + until unlocked by a call to the `munlockall', until the process exits, + or until the process calls `execve'. */ +int mlockall __P ((int __flags)); + +/* All currently mapped pages of the process' address space become + unlocked. */ +int munlockall __P ((void)); + +/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to + be memory resident. */ +int mlock __P ((__caddr_t __addr, size_t __len)); + +/* Unlock whole pages previously mapped by the range [ADDR,ADDR+LEN). */ +int munlock __P ((__caddr_t __addr, size_t __len)); + __END_DECLS |