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