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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-11-03 19:11:47 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-11-03 19:11:47 +0100 |
| commit | 0572d1659d8b50b4251950474f688513c4a72f8e (patch) | |
| tree | c2efe4037adb5c143248705f1653cb2257fdf0eb /vm/vm_map.c | |
| parent | 125923aeb9c32e389b9aae109d508e6011950055 (diff) | |
| download | gnumach-0572d1659d8b50b4251950474f688513c4a72f8e.tar.gz gnumach-0572d1659d8b50b4251950474f688513c4a72f8e.tar.bz2 gnumach-0572d1659d8b50b4251950474f688513c4a72f8e.zip | |
Add vm_object_sync support
* include/mach/vm_sync.h: New file.
* include/mach/mach_types.h: Include <mach/vm_sync.h>
* Makefrag.am (include_mach_HEADERS): Add include/mach/vm_sync.h.
* include/mach/mach_types.defs (vm_sync_t): Add type.
* include/mach/gnumach.defs (vm_object_sync, vm_msync): Add RPCs.
* vm/vm_map.h: Include <mach/vm_sync.h>.
(vm_map_msync): New declaration.
* vm/vm_map.c (vm_map_msync): New function.
* vm/vm_user.c: Include <mach/vm_sync.h> and <kern/mach.server.h>.
(vm_object_sync, vm_msync): New functions.
Diffstat (limited to 'vm/vm_map.c')
| -rw-r--r-- | vm/vm_map.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c index 2fd27316..8afa74b3 100644 --- a/vm/vm_map.c +++ b/vm/vm_map.c @@ -4868,6 +4868,37 @@ kern_return_t vm_map_machine_attribute( return ret; } +/* + * Routine: vm_map_msync + * Purpose: + * Synchronize out pages of the given map out to their memory + * manager, if any. + */ +kern_return_t vm_map_msync( + vm_map_t map, + vm_offset_t address, + vm_size_t size, + vm_sync_t sync_flags) +{ + if (map == VM_MAP_NULL) + KERN_INVALID_ARGUMENT; + + if (sync_flags & (VM_SYNC_ASYNCHRONOUS | VM_SYNC_SYNCHRONOUS) == + (VM_SYNC_ASYNCHRONOUS | VM_SYNC_SYNCHRONOUS)) + KERN_INVALID_ARGUMENT; + + size = round_page(address + size) - trunc_page(address); + address = trunc_page(address); + + if (size == 0) + return KERN_SUCCESS; + + /* TODO */ + + return KERN_INVALID_ARGUMENT; +} + + #if MACH_KDB |