94 lines
1.9 KiB
C++
94 lines
1.9 KiB
C++
/*++
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Copyright (c) 1999-2001 Microsoft Corporation
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Abstract:
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Manages a set of regions indexed by virtual addresses
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and backed by mapped memory.
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Author:
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Matthew D Hendel (math) 16-Sept-1999
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Revision History:
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--*/
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#ifndef __MMAP_HPP__
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#define __MMAP_HPP__
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#define HR_REGION_CONFLICT HRESULT_FROM_NT(STATUS_CONFLICTING_ADDRESSES)
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typedef struct _MEMORY_MAP_ENTRY
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{
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ULONG64 BaseOfRegion;
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ULONG SizeOfRegion;
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PVOID Region;
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PVOID UserData;
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BOOL AllowOverlap;
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struct _MEMORY_MAP_ENTRY * Next;
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} MEMORY_MAP_ENTRY, * PMEMORY_MAP_ENTRY;
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class MappedMemoryMap
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{
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public:
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MappedMemoryMap(void);
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~MappedMemoryMap(void);
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HRESULT AddRegion(
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ULONG64 BaseOfRegion,
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ULONG SizeOfRegion,
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PVOID Buffer,
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PVOID UserData,
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BOOL AllowOverlap
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);
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BOOL ReadMemory(
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ULONG64 BaseOfRange,
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OUT PVOID Buffer,
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ULONG SizeOfRange,
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PULONG BytesRead
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);
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BOOL CheckMap(
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IN PVOID Map
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);
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BOOL GetRegionInfo(
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IN ULONG64 Addr,
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OUT ULONG64* BaseOfRegion, OPTIONAL
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OUT ULONG* SizeOfRegion, OPTIONAL
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OUT PVOID* Buffer, OPTIONAL
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OUT PVOID* UserData OPTIONAL
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);
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BOOL GetNextRegion(
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IN ULONG64 Addr,
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OUT PULONG64 Next
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);
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BOOL RemoveRegion(
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IN ULONG64 BaseOfRegion,
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IN ULONG SizeOfRegion
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);
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BOOL GetRegionByUserData(
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IN PVOID UserData,
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OUT PULONG64 Base,
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OUT PULONG Size
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);
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private:
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PMEMORY_MAP_ENTRY AddMapEntry(ULONG64 BaseOfRegion, ULONG SizeOfRegion,
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PVOID Buffer, PVOID UserData,
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BOOL AllowOverlap);
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PMEMORY_MAP_ENTRY FindPreceedingRegion(ULONG64 Addr);
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PMEMORY_MAP_ENTRY FindContainingRegion(ULONG64 Addr);
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PMEMORY_MAP_ENTRY m_List;
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ULONG m_RegionCount;
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};
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#endif // #ifndef __MMAP_HPP__
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