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#ifdef _WIN32
	#include <windows.h>
#else // linux stuff
	#include <sys/vfs.h>
	#include <sys/stat.h>
#endif // _WIN32

bool getFreeTotalSpace(const QString& sDirPath,double& fTotal, double& fFree)
{
#ifdef _WIN32

	QString sCurDir = QDir::current().absPath();
	QDir::setCurrent( sDirPath );
	
	ULARGE_INTEGER free,total;
	bool bRes = ::GetDiskFreeSpaceExA( 0 , &free , &total , NULL );
	if ( !bRes ) return false;

	QDir::setCurrent( sCurDir );

	fFree = static_cast<double>( static_cast<__int64>(free.QuadPart) ) / fKB;
	fTotal = static_cast<double>( static_cast<__int64>(total.QuadPart) ) / fKB;

#else //linux

	struct stat stst;
	struct statfs stfs;

	if ( ::stat(sDirPath.local8Bit(),&stst) == -1 ) return false;
	if ( ::statfs(sDirPath.local8Bit(),&stfs) == -1 ) return false;

	fFree = stfs.f_bavail * ( stst.st_blksize / fKB );
	fTotal = stfs.f_blocks * ( stst.st_blksize / fKB );

#endif // _WIN32

	return true;
}