Category

Development Platform
Home > SourceCode/Document > Windows Develop > View Code
FILESYSTEM.CPP
Package: System Programming for Windows 95(source code).zip　[view]
Upload User: linklycbj
Upload Date: 2009-11-12
Package Size: 447k
Code Size: 3k
Category:

Windows Develop

Development Platform:

WINDOWS

FILESYSTEM.CPP：Code Content
  1. // FileSystem.cpp -- Implementation of CFileSystem
  2. // Copyright (C) 1996 by Walter Oney
  3. // All rights reserved
  5. #define NULL 0
  6. class CFileSystem;
  7. #define rh_t CFileSystem*
  9. extern "C" {
  10. #define WANTVXDWRAPS
  11. #include <basedef.h>
  12. #include <vmm.h>
  13. #include <debug.h>
  14. #include <vxdwraps.h>
  15. #include <winerror.h>
  16. #include "iosdcls.h"
  17. #include "ifsmgr.h"
  18. } // extern "C"
  20. #pragma hdrstop
  22. #include "FileSystem.h"
  24. ///////////////////////////////////////////////////////////////////////////////
  26. CFileSystem* (*CFileSystem::CreateNewFcn)() = NULL;
  27. int CFileSystem::ProviderId = 0;
  29. CFileSystem::CFileSystem()
  30. { // CFileSystem::CFileSystem
  31. } // CFileSystem::CFileSystem
  33. CFileSystem::~CFileSystem()
  34. { // CFileSystem::~CFileSystem
  35. } // CFileSystem::~CFileSystem
  37. BOOL CFileSystem::Register(CFileSystem* (*createnew)())
  38. { // CFileSystem::Register
  39. CreateNewFcn = createnew;
  40. return TRUE;
  41. } // CFileSystem::Register
  43. ///////////////////////////////////////////////////////////////////////////////
  45. #undef vt
  46. #define vt(f) int CFileSystem::f##Thunk(pioreq pir) {return pir->ir_error = ((CFileSystem*)(pir->ir_rh))->f(pir);}
  48. vt(EmptyFunc)
  50. vt(DeleteFile)
  51. vt(Dir)
  52. vt(FileAttributes)
  53. vt(FlushVolume)
  54. vt(GetDiskInfo)
  55. vt(OpenFile)
  56. vt(RenameFile)
  57. vt(SearchFile)
  58. vt(QueryResourceInfo)
  59. vt(DisconnectResource)
  60. vt(NamedPipeUNCRequest)
  61. vt(Ioctl16Drive)
  62. vt(GetDiskParms)
  63. vt(FindFirstFile)
  64. vt(DirectDiskIO)
  66. vt(FindClose)
  67. vt(FindNextFile)
  69. vt(ReadFile)
  70. vt(WriteFile)
  71. vt(FileSeek)
  72. vt(CloseFile)
  73. vt(CommitFile)
  74. vt(LockFile)
  75. vt(FileDateTime)
  76. vt(NamedPipeHandleInfo)
  77. vt(EnumerateHandle)
  79. // Default implementations of FSD functions that should be overridden:
  81. #undef vt
  82. #define vt(f) int CFileSystem::f(pioreq pir) { 
  83. ASSERT(!"Using base-class " #f); 
  84. return pir->ir_error = ERROR_INVALID_FUNCTION;}
  86. vt(DeleteFile)
  87. vt(Dir)
  88. vt(FileAttributes)
  89. vt(FlushVolume)
  90. vt(GetDiskInfo)
  91. vt(OpenFile)
  92. vt(RenameFile)
  93. vt(SearchFile)
  94. vt(QueryResourceInfo)
  95. vt(NamedPipeUNCRequest)
  96. vt(Ioctl16Drive)
  97. vt(GetDiskParms)
  98. vt(FindFirstFile)
  99. vt(DirectDiskIO)
  101. vt(FindClose)
  102. vt(FindNextFile)
  104. vt(ReadFile)
  105. vt(WriteFile)
  106. vt(FileSeek)
  107. vt(CloseFile)
  108. vt(CommitFile)
  109. vt(LockFile)
  110. vt(FileDateTime)
  111. vt(NamedPipeHandleInfo)
  112. vt(EnumerateHandle)
  114. // An instance that wants to supply an empty function should point to
  115. // EmptyFunc, which doesn't ASSERT when called:
  117. int CFileSystem::EmptyFunc(pioreq pir)
  118. { // CFileSystem::EmptyFunc
  119. return pir->ir_error = ERROR_INVALID_FUNCTION;
  120. } // CFileSystem::EmptyFunc
  122. ///////////////////////////////////////////////////////////////////////////////
  124. int CFileSystem::DisconnectResource(pioreq pir)
  125. { // CLocalFileSystem::DisconnectResource
  126. delete this;
  127. return pir->ir_error = 0;
  128. } // CLocalFileSystem::DisconnectResource
  130. ///////////////////////////////////////////////////////////////////////////////