a90ebd77ee
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36243 a95241bf-73f2-0310-859d-f6bbb57e9c96
76 lines
1.4 KiB
C++
76 lines
1.4 KiB
C++
/*
|
|
* Copyright 2006-2008, Haiku, Inc. All Rights Reserved.
|
|
* Distributed under the terms of the MIT License.
|
|
*
|
|
* Authors:
|
|
* Axel Dörfler, axeld@pinc-software.de
|
|
*/
|
|
#ifndef AREA_KEEPER_H
|
|
#define AREA_KEEPER_H
|
|
|
|
|
|
#include <KernelExport.h>
|
|
#include <OS.h>
|
|
|
|
#include <util/kernel_cpp.h>
|
|
|
|
|
|
class AreaKeeper {
|
|
public:
|
|
AreaKeeper();
|
|
~AreaKeeper();
|
|
|
|
area_id Create(const char *name, void **_virtualAddress, uint32 spec,
|
|
size_t size, uint32 lock, uint32 protection);
|
|
area_id Map(const char *name, void *physicalAddress, size_t numBytes,
|
|
uint32 spec, uint32 protection, void **_virtualAddress);
|
|
|
|
status_t InitCheck() { return fArea < B_OK ? (status_t)fArea : B_OK; }
|
|
void Detach();
|
|
|
|
private:
|
|
area_id fArea;
|
|
};
|
|
|
|
|
|
AreaKeeper::AreaKeeper()
|
|
:
|
|
fArea(-1)
|
|
{
|
|
}
|
|
|
|
|
|
AreaKeeper::~AreaKeeper()
|
|
{
|
|
if (fArea >= B_OK)
|
|
delete_area(fArea);
|
|
}
|
|
|
|
|
|
area_id
|
|
AreaKeeper::Create(const char *name, void **_virtualAddress, uint32 spec,
|
|
size_t size, uint32 lock, uint32 protection)
|
|
{
|
|
fArea = create_area(name, _virtualAddress, spec, size, lock, protection);
|
|
return fArea;
|
|
}
|
|
|
|
|
|
area_id
|
|
AreaKeeper::Map(const char *name, void *physicalAddress, size_t numBytes,
|
|
uint32 spec, uint32 protection, void **_virtualAddress)
|
|
{
|
|
fArea = map_physical_memory(name, physicalAddress, numBytes, spec, protection,
|
|
_virtualAddress);
|
|
return fArea;
|
|
}
|
|
|
|
|
|
void
|
|
AreaKeeper::Detach()
|
|
{
|
|
fArea = -1;
|
|
}
|
|
|
|
#endif // AREA_KEEPER_H
|