118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
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/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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Enumdir.h
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Abstract:
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Class definition for the directory
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enumeration class.
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Notes:
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Unicode only right now.
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History:
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02/21/2001 rparsons Created
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--*/
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#include <windows.h>
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#include <windowsx.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <ctype.h>
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#include <string.h>
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#include <io.h>
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#include <fcntl.h>
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#include <malloc.h>
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#include <sys\types.h>
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#include <sys\stat.h>
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//
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// Determine if an argument is present by testing a value of NULL
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//
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#define ARGUMENT_IS_PRESENT( ArgumentPointer ) (\
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(LPSTR)(ArgumentPointer) != (LPSTR)(NULL) )
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//
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// Useful rounding macros that the rounding amount is always a
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// power of two.
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//
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#define ROUND_DOWN( Size, Amount ) ((DWORD)(Size) & ~((Amount) - 1))
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#define ROUND_UP( Size, Amount ) (((DWORD)(Size) + ((Amount) - 1)) & ~((Amount) - 1))
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//
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// Directory enumeration and file notification definitions.
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//
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typedef
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BOOL (*PDIRECTORY_ENUMERATE_ROUTINE)(
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LPCWSTR lpwPath,
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PWIN32_FIND_DATA pFindFileData,
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PVOID pEnumerateParameter
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);
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//
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// Data structures private to the EnumerateDirectoryTree function.
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//
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typedef struct _ENUMERATE_DIRECTORY_STACK {
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LPWSTR PathEnd;
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HANDLE FindHandle;
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} ENUMERATE_DIRECTORY_STACK, *PENUMERATE_DIRECTORY_STACK;
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#define MAX_DEPTH 256
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typedef struct _ENUMERATE_DIRECTORY_STATE {
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DWORD Depth;
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ENUMERATE_DIRECTORY_STACK Stack[ MAX_DEPTH ];
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WCHAR Path[ MAX_PATH ];
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} ENUMERATE_DIRECTORY_STATE, *PENUMERATE_DIRECTORY_STATE;
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//
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// Virtual Buffer data structure
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//
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typedef struct _VIRTUAL_BUFFER {
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LPVOID Base;
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ULONG PageSize;
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LPVOID CommitLimit;
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LPVOID ReserveLimit;
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} VIRTUAL_BUFFER, *PVIRTUAL_BUFFER;
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class CEnumDir {
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public:
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BOOL EnumerateDirectoryTree(IN LPCWSTR DirectoryPath,
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IN PDIRECTORY_ENUMERATE_ROUTINE EnumerateRoutine,
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IN BOOL fEnumSubDirs,
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IN PVOID EnumerateParameter);
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private:
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BOOL CreateVirtualBuffer(OUT PVIRTUAL_BUFFER Buffer,
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IN DWORD CommitSize,
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IN DWORD ReserveSize OPTIONAL);
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BOOL ExtendVirtualBuffer(IN PVIRTUAL_BUFFER Buffer,
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IN LPVOID Address);
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BOOL TrimVirtualBuffer(IN PVIRTUAL_BUFFER Buffer);
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BOOL FreeVirtualBuffer(IN PVIRTUAL_BUFFER Buffer);
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int VirtualBufferExceptionFilter(IN DWORD ExceptionCode,
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IN PEXCEPTION_POINTERS ExceptionInfo,
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IN OUT PVIRTUAL_BUFFER Buffer);
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};
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