* Copyright 2009-2010, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the NewOS License.
*/
#ifndef VM_USER_AREA_H
#define VM_USER_AREA_H
#include <util/AVLTree.h>
#include <vm/VMArea.h>
struct VMUserAddressSpace;
struct VMUserArea : VMArea, AVLTreeNode {
VMUserArea(VMAddressSpace* addressSpace,
uint32 wiring, uint32 protection);
~VMUserArea();
static VMUserArea* Create(VMAddressSpace* addressSpace,
const char* name, uint32 wiring,
uint32 protection, uint32 allocationFlags);
static VMUserArea* CreateReserved(VMAddressSpace* addressSpace,
uint32 flags, uint32 allocationFlags);
};
struct VMUserAreaTreeDefinition {
typedef addr_t Key;
typedef VMUserArea Value;
AVLTreeNode* GetAVLTreeNode(Value* value) const
{
return value;
}
Value* GetValue(AVLTreeNode* node) const
{
return static_cast<Value*>(node);
}
int Compare(addr_t a, const Value* _b) const
{
addr_t b = _b->Base();
if (a == b)
return 0;
return a < b ? -1 : 1;
}
int Compare(const Value* a, const Value* b) const
{
return Compare(a->Base(), b);
}
};
typedef AVLTree<VMUserAreaTreeDefinition> VMUserAreaTree;
#endif
