DSKDiskImage.cc

Go to the documentation of this file.

#include "DSKDiskImage.hh"
#include "File.hh"
#include "FilePool.hh"
 
namespace openmsx {
 
DSKDiskImage::DSKDiskImage(const Filename& fileName)
        : SectorBasedDisk(DiskName(fileName))
        , file(std::make_shared<File>(fileName, File::OpenMode::PRE_CACHE))
{
        setNbSectors(file->getSize() / sizeof(SectorBuffer));
}
 
DSKDiskImage::DSKDiskImage(const Filename& fileName,
                           std::shared_ptr<File> file_)
        : SectorBasedDisk(DiskName(fileName))
        , file(std::move(file_))
{
        setNbSectors(file->getSize() / sizeof(SectorBuffer));
}
 
void DSKDiskImage::readSectorsImpl(
        std::span<SectorBuffer> buffers, size_t startSector)
{
        file->seek(startSector * sizeof(SectorBuffer));
        file->read(buffers);
}
 
void DSKDiskImage::writeSectorImpl(size_t sector, const SectorBuffer& buf)
{
        file->seek(sector * sizeof(buf));
        file->write(buf.raw);
}
 
bool DSKDiskImage::isWriteProtectedImpl() const
{
        return file->isReadOnly();
}
 
Sha1Sum DSKDiskImage::getSha1SumImpl(FilePool& filePool)
{
        if (hasPatches()) {
                return SectorAccessibleDisk::getSha1SumImpl(filePool);
        }
        return filePool.getSha1Sum(*file);
}
 
} // namespace openmsx