AOO410/main/sal/systools/win32/uwinapi/GetDiskFreeSpaceExA.cpp

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#include "macros.h"

// GetDiskSpaceExA wrapper for Win 95A

IMPLEMENT_THUNK( kernel32, TRYLOAD, BOOL, WINAPI, GetDiskFreeSpaceExA,(
  LPCSTR lpRootPathName,                  // directory name
  PULARGE_INTEGER lpFreeBytesAvailable,    // bytes available to caller
  PULARGE_INTEGER lpTotalNumberOfBytes,    // bytes on disk
  PULARGE_INTEGER lpTotalNumberOfFreeBytes // free bytes on disk
))
{
	DWORD	dwSectorsPerCluster, dwBytesPerSector, dwNumberOfFreeClusters, dwTotalNumberOfClusters;

	BOOL	fSuccess = GetDiskFreeSpaceA( lpRootPathName, &dwSectorsPerCluster, &dwBytesPerSector, &dwNumberOfFreeClusters, &dwTotalNumberOfClusters );

	if ( fSuccess )
	{
		ULONGLONG	ulBytesPerCluster = (ULONGLONG)dwSectorsPerCluster * (ULONGLONG)dwBytesPerSector;

		if ( lpFreeBytesAvailable )
			lpFreeBytesAvailable->QuadPart = ulBytesPerCluster * (ULONGLONG)dwNumberOfFreeClusters;

		if ( lpTotalNumberOfBytes )
			lpTotalNumberOfBytes->QuadPart = ulBytesPerCluster * (ULONGLONG)dwTotalNumberOfClusters;

		if ( lpTotalNumberOfFreeBytes )
			lpTotalNumberOfFreeBytes->QuadPart = ulBytesPerCluster * (ULONGLONG)dwNumberOfFreeClusters;
	}

	return fSuccess;
}