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Added support for special reserved address ranges: they will be used

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only if memory becomes tight, and then the range is used from end to
start.
This is useful to reserve heap address ranges.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12675 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-05-15 15:56:55 +00:00
parent 20a6e5473b
commit a3e9996e9d
3 changed files with 70 additions and 31 deletions
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headers/private/kernel/vm.h
+20 -15
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@@ -43,23 +43,27 @@ void vm_put_aspace(vm_address_space *aspace);
// private kernel only extension (should be moved somewhere else):
struct team;
area_id create_area_etc(struct team *team, const char *name, void **address, uint32 addressSpec,
uint32 size, uint32 lock, uint32 protection);
area_id create_area_etc(struct team *team, const char *name, void **address,
uint32 addressSpec, uint32 size, uint32 lock, uint32 protection);
status_t delete_area_etc(struct team *team, area_id area);
status_t vm_unreserve_address_range(aspace_id aid, void *address, addr_t size);
status_t vm_reserve_address_range(aspace_id aid, void **_address, uint32 addressSpec, addr_t size);
area_id vm_create_anonymous_area(aspace_id aid, const char *name, void **address, uint32 addressSpec,
addr_t size, uint32 wiring, uint32 protection);
area_id vm_map_physical_memory(aspace_id aid, const char *name, void **address, uint32 addressSpec,
addr_t size, uint32 protection, addr_t phys_addr);
area_id vm_map_file(aspace_id aid, const char *name, void **address, uint32 addressSpec,
addr_t size, uint32 protection, uint32 mapping, const char *path, off_t offset);
area_id vm_create_null_area(aspace_id aid, const char *name, void **address, uint32 addressSpec, addr_t size);
area_id vm_copy_area(aspace_id addressSpaceID, const char *name, void **_address, uint32 addressSpec,
uint32 protection, area_id sourceID);
area_id vm_clone_area(aspace_id aid, const char *name, void **address, uint32 addressSpec,
uint32 protection, uint32 mapping, area_id sourceArea);
status_t vm_reserve_address_range(aspace_id aid, void **_address,
uint32 addressSpec, addr_t size, uint32 flags);
area_id vm_create_anonymous_area(aspace_id aid, const char *name, void **address,
uint32 addressSpec, addr_t size, uint32 wiring, uint32 protection);
area_id vm_map_physical_memory(aspace_id aid, const char *name, void **address,
uint32 addressSpec, addr_t size, uint32 protection, addr_t phys_addr);
area_id vm_map_file(aspace_id aid, const char *name, void **address,
uint32 addressSpec, addr_t size, uint32 protection, uint32 mapping,
const char *path, off_t offset);
area_id vm_create_null_area(aspace_id aid, const char *name, void **address,
uint32 addressSpec, addr_t size);
area_id vm_copy_area(aspace_id addressSpaceID, const char *name, void **_address,
uint32 addressSpec, uint32 protection, area_id sourceID);
area_id vm_clone_area(aspace_id aid, const char *name, void **address,
uint32 addressSpec, uint32 protection, uint32 mapping,
area_id sourceArea);
status_t vm_delete_area(aspace_id aid, area_id id);
status_t vm_create_vnode_cache(void *vnode, vm_cache_ref **_cacheRef);
@@ -77,7 +81,8 @@ area_id _user_find_area(const char *name);
status_t _user_get_area_info(area_id area, area_info *info);
status_t _user_get_next_area_info(team_id team, int32 *cookie, area_info *info);
status_t _user_resize_area(area_id area, size_t newSize);
status_t _user_transfer_area(area_id area, void **_address, uint32 addressSpec, team_id target);
status_t _user_transfer_area(area_id area, void **_address, uint32 addressSpec,
team_id target);
status_t _user_set_area_protection(area_id area, uint32 newProtection);
area_id _user_clone_area(const char *name, void **_address, uint32 addressSpec,
uint32 protection, area_id sourceArea);