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dataclen.h
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Upload Date: 2007-02-14
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Windows Kernel

Development Platform:

Visual C++

dataclen.h：Code Content
  1. /*
  2. **------------------------------------------------------------------------------
  3. ** Module:  System data driven cleaner
  4. ** File:    dataclen.h
  5. **
  6. ** Purpose: Defines the 'System data driven cleaner' for the IEmptyVolumeCache
  7. **          interface
  8. ** Notes:
  9. ** Mod Log: Created by Jason Cobb (2/97)
  10. **
  11. ** Copyright (c)1997 Microsoft Corporation, All Rights Reserved
  12. **------------------------------------------------------------------------------
  13. */
  14. #ifndef DATACLEN_H
  15. #define DATACLEN_H
  17. #ifndef COMMON_H
  18.     #include "common.h"
  19. #endif
  21. /*
  22. **------------------------------------------------------------------------------
  23. ** Project include files 
  24. **------------------------------------------------------------------------------
  25. */
  27. /*
  28. **------------------------------------------------------------------------------
  29. ** Class Declarations
  30. **------------------------------------------------------------------------------
  31. */
  33. /*
  34. **------------------------------------------------------------------------------
  35. ** Class:   CDataDrivenCleanerClassFactory
  36. ** Purpose: Manufactures instances of our CDataDrivenCleaner object
  37. ** Notes:   
  38. ** Mod Log: Created by Jason Cobb (2/97)
  39. **------------------------------------------------------------------------------
  40. */ 
  41. class CCleanerClassFactory : public IClassFactory
  42. {
  43. private:
  44. protected:
  45. //
  46. // Data
  47. //
  48. ULONG   _cRef;     // Reference count
  49.     DWORD   _dwID;     // what type of class factory are we?
  51. public:
  52. //
  53. // Constructors
  54. //
  55. CCleanerClassFactory(DWORD);
  56. ~CCleanerClassFactory();
  58.     //
  59. // IUnknown interface members
  60. //
  61.     STDMETHODIMP            QueryInterface(REFIID, LPVOID FAR *);
  62.     STDMETHODIMP_(ULONG)    AddRef();
  63.     STDMETHODIMP_(ULONG)    Release();
  65. //   
  66. // IClassFactory interface members
  67.     //
  68.     STDMETHODIMP            CreateInstance(LPUNKNOWN, REFIID, LPVOID FAR *);
  69.     STDMETHODIMP            LockServer(BOOL);
  70. };
  72. typedef CCleanerClassFactory *LPCCLEANERCLASSFACTORY;
  75. /*
  76. **------------------------------------------------------------------------------
  77. ** Class:   CDataDrivenCleaner
  78. ** Purpose: This is the actual Data Driven Cleaner Class
  79. ** Notes:   
  80. ** Mod Log: Created by Jason Cobb (2/97)
  81. **------------------------------------------------------------------------------
  82. */ 
  83. class CDataDrivenCleaner : public IEmptyVolumeCache
  84. {
  85. private:
  86. protected:
  87. //
  88.     // Data
  89. //
  90. ULONG               _cRef;                 // reference count
  91. LPDATAOBJECT        _lpdObject;            // Last Data object
  93.     ULARGE_INTEGER      _cbSpaceUsed;
  94.     ULARGE_INTEGER _cbSpaceFreed;
  96.     FILETIME _ftMinLastAccessTime;
  98.     TCHAR               _szVolume[MAX_PATH];
  99. TCHAR               _szFolder[MAX_PATH];
  100. DWORD               _dwFlags;
  101. TCHAR               _filelist[MAX_PATH];
  102. TCHAR _CleanupString[MAX_PATH];
  103. BOOL _bPurged; // TRUE if Purge() method was run
  105. PCLEANFILESTRUCT    _head;                   // head of the linked list of files
  107. BOOL WalkForUsedSpace(PTCHAR lpPath, IEmptyVolumeCacheCallBack *picb);
  108. BOOL WalkAllFiles(PTCHAR lpPath, IEmptyVolumeCacheCallBack *picb);
  109. BOOL AddFileToList(PTCHAR lpFile, ULARGE_INTEGER filesize, BOOL bDirectory);
  110. void PurgeFiles(IEmptyVolumeCacheCallBack *picb, BOOL bDoDirectories);
  111. void FreeList(PCLEANFILESTRUCT pCleanFile);
  112. BOOL bLastAccessisOK(FILETIME ftFileLastAccess);
  113. BOOL bW98ProcessIsRunning(HKEY hRegKey);
  116. public:
  117. //
  118.     // Constructors
  119. //
  120. CDataDrivenCleaner (void);
  121. ~CDataDrivenCleaner (void);
  123. //
  124.     // IUnknown interface members
  125. //
  126. STDMETHODIMP            QueryInterface (REFIID, LPVOID FAR *);
  127. STDMETHODIMP_(ULONG)    AddRef (void);
  128. STDMETHODIMP_(ULONG)    Release (void);
  130.     //
  131.     // IEmptyVolumeCache interface members
  132.     //
  133.     STDMETHODIMP    Initialize(
  134.                                 HKEY hRegKey,
  135.                                 LPCWSTR pszVolume,
  136.                                 LPWSTR *ppszDisplayName,
  137.                                 LPWSTR *ppszDescription,
  138.                                 DWORD *pdwFlags
  139.                                 );
  140.                                 
  141.     STDMETHODIMP    GetSpaceUsed(
  142.                                 DWORDLONG *pdwSpaceUsed,
  143.                                 IEmptyVolumeCacheCallBack *picb
  144.                                 );
  145.                                 
  146.     STDMETHODIMP    Purge(
  147.                                 DWORDLONG dwSpaceToFree,
  148.                                 IEmptyVolumeCacheCallBack *picb
  149.                                 );
  150.                                 
  151.     STDMETHODIMP    ShowProperties(
  152.                                 HWND hwnd
  153.                                 );
  154.                                 
  155.     STDMETHODIMP    Deactivate(
  156.                                 DWORD *pdwFlags
  157.                                 );                                                                                                                                
  158. };
  160. typedef CDataDrivenCleaner *LPCDATADRIVENCLEANER;
  162. /*
  163. **------------------------------------------------------------------------------
  164. ** Class:   CDataDrivenPropBag
  165. ** Purpose: This is the property bag used to allow string localization for the
  166. **          default data cleaner.  This class implements multiple GUIDs each of
  167. **          which will return different values for the three valid properties.
  168. ** Notes:   
  169. ** Mod Log: Created by ToddB (9/98)
  170. **------------------------------------------------------------------------------
  171. */ 
  172. class CDataDrivenPropBag : public IPropertyBag
  173. {
  174. private:
  175. protected:
  176. //
  177.     // Data
  178. //
  179. ULONG               _cRef;                 // reference count
  181.     // We use this object for several different property bags.  Based on the CLSID used
  182.     // to create this object we set the value of _dwFilter to a known value so that we
  183.     // know which property bag we are.
  184. DWORD               _dwFilter;
  186. public:
  187. //
  188.     // Constructors
  189. //
  190. CDataDrivenPropBag (DWORD);
  191. ~CDataDrivenPropBag (void);
  193. //
  194.     // IUnknown interface members
  195. //
  196. STDMETHODIMP            QueryInterface (REFIID, LPVOID FAR *);
  197. STDMETHODIMP_(ULONG)    AddRef (void);
  198. STDMETHODIMP_(ULONG)    Release (void);
  200.     //
  201.     // IPropertyBag interface members
  202.     //
  203.     STDMETHODIMP            Read (LPCOLESTR, VARIANT *, IErrorLog *);
  204.     STDMETHODIMP            Write (LPCOLESTR, VARIANT *);
  205. };
  207. typedef CDataDrivenPropBag *LPCDATADRIVENPROPBAG;
  209. #ifdef WINNT
  210. class CContentIndexCleaner : public IEmptyVolumeCache
  211. {
  212.     private:
  213.         IEmptyVolumeCache * _pDataDriven;
  214.         LONG _cRef;
  215.         
  216.     public:
  217.      //
  218.         // Constructors
  219.      //
  220.      CContentIndexCleaner(void);
  221.      ~CContentIndexCleaner(void);
  223.      //
  224.         // IUnknown interface members
  225.      //
  226.      STDMETHODIMP            QueryInterface (REFIID, LPVOID FAR *);
  227.      STDMETHODIMP_(ULONG)    AddRef (void);
  228.      STDMETHODIMP_(ULONG)    Release (void);
  229.     
  230.         //
  231.         // IEmptyVolumeCache interface members
  232.         //
  233.         STDMETHODIMP    Initialize(
  234.                                     HKEY hRegKey,
  235.                                     LPCWSTR pszVolume,
  236.                                     LPWSTR *ppszDisplayName,
  237.                                     LPWSTR *ppszDescription,
  238.                                     DWORD *pdwFlags
  239.                                     );
  240.                                     
  241.         STDMETHODIMP    GetSpaceUsed(
  242.                                     DWORDLONG *pdwSpaceUsed,
  243.                                     IEmptyVolumeCacheCallBack *picb
  244.                                     );
  245.                                     
  246.         STDMETHODIMP    Purge(
  247.                                     DWORDLONG dwSpaceToFree,
  248.                                     IEmptyVolumeCacheCallBack *picb
  249.                                     );
  250.                                     
  251.         STDMETHODIMP    ShowProperties(
  252.                                     HWND hwnd
  253.                                     );
  254.                                     
  255.         STDMETHODIMP    Deactivate(
  256.                                     DWORD *pdwFlags
  257.                                     );                                                                                                                                
  258.             
  259. };
  261. typedef CContentIndexCleaner *LPCCONTENTINDEXCLEANER;
  263. #endif // WINNT
  264. #endif // DATACLEN_H
  265. /*
  266. **------------------------------------------------------------------------------
  267. ** End of File
  268. **------------------------------------------------------------------------------
  269. */