sal/systools/win32/uwinapi/GetDiskFreeSpaceExA.cpp

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  30
  31 #include "macros.h"
  32
  33 // GetDiskSpaceExA wrapper for Win 95A
  34
  35 IMPLEMENT_THUNK( kernel32, TRYLOAD, BOOL, WINAPI, GetDiskFreeSpaceExA,(
  36   LPCSTR lpRootPathName,                  // directory name
  37   PULARGE_INTEGER lpFreeBytesAvailable,    // bytes available to caller
  38   PULARGE_INTEGER lpTotalNumberOfBytes,    // bytes on disk
  39   PULARGE_INTEGER lpTotalNumberOfFreeBytes // free bytes on disk
  40 ))
  41 {
  42     DWORD       dwSectorsPerCluster, dwBytesPerSector, dwNumberOfFreeClusters, dwTotalNumberOfClusters;
  43
  44     BOOL        fSuccess = GetDiskFreeSpaceA( lpRootPathName, &dwSectorsPerCluster, &dwBytesPerSector, &dwNumberOfFreeClusters, &dwTotalNumberOfClusters );
  45
  46     if ( fSuccess )
  47     {
  48         ULONGLONG       ulBytesPerCluster = (ULONGLONG)dwSectorsPerCluster * (ULONGLONG)dwBytesPerSector;
  49
  50         if ( lpFreeBytesAvailable )
  51             lpFreeBytesAvailable->QuadPart = ulBytesPerCluster * (ULONGLONG)dwNumberOfFreeClusters;
  52
  53         if ( lpTotalNumberOfBytes )
  54             lpTotalNumberOfBytes->QuadPart = ulBytesPerCluster * (ULONGLONG)dwTotalNumberOfClusters;
  55
  56         if ( lpTotalNumberOfFreeBytes )
  57             lpTotalNumberOfFreeBytes->QuadPart = ulBytesPerCluster * (ULONGLONG)dwNumberOfFreeClusters;
  58     }
  59
  60     return fSuccess;
  61 }
  62