public ConcatenationDirectory(ConcatenationFileSystem fs, IFileSystem baseFs, IDirectory parentDirectory, OpenDirectoryMode mode, U8Span path)
{
ParentFileSystem = fs;
BaseFileSystem = baseFs;
ParentDirectory = parentDirectory;
Mode = mode;
StringUtils.Copy(_path.Str, path);
_path.Str[PathTools.MaxPathLength] = StringTraits.NullTerminator;
// Ensure the path ends with a separator
int pathLength = StringUtils.GetLength(path, PathTools.MaxPathLength + 1);
if (pathLength != 0 && _path.Str[pathLength - 1] == StringTraits.DirectorySeparator)
{
return;
}
if (pathLength >= PathTools.MaxPathLength)
{
throw new HorizonResultException(ResultFs.TooLongPath.Value, "abort");
}
_path.Str[pathLength] = StringTraits.DirectorySeparator;
_path.Str[pathLength + 1] = StringTraits.NullTerminator;
_path.Str[PathTools.MaxPathLength] = StringTraits.NullTerminator;
}
public ConcatenationDirectory(ConcatenationFileSystem fs, IFileSystem baseFs, IDirectory parentDirectory, OpenDirectoryMode mode, string path)
{
ParentFileSystem = fs;
BaseFileSystem = baseFs;
ParentDirectory = parentDirectory;
Mode = mode;
Path = path;
}
private bool IsConcatenationFile(DirectoryEntry entry)
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return(ConcatenationFileSystem.HasConcatenationFileAttribute(entry.Attributes));
}
else
{
string name = Util.GetUtf8StringNullTerminated(entry.Name);
string fullPath = PathTools.Combine(Path, name);
return(ParentFileSystem.IsConcatenationFile(fullPath));
}
}
private bool IsConcatenationFile(DirectoryEntry entry)
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return(ConcatenationFileSystem.HasConcatenationFileAttribute(entry.Attributes));
}
else
{
string name = StringUtils.NullTerminatedUtf8ToString(entry.Name);
var fullPath = PathTools.Combine(_path.ToString(), name).ToU8Span();
return(ParentFileSystem.IsConcatenationFile(fullPath));
}
}
protected override Result SetSizeImpl(long size)
{
Result rc = GetSize(out long currentSize);
if (rc.IsFailure())
{
return(rc);
}
if (currentSize == size)
{
return(Result.Success);
}
int currentSubFileCount = QuerySubFileCount(currentSize, SubFileSize);
int newSubFileCount = QuerySubFileCount(size, SubFileSize);
if (size > currentSize)
{
IFile currentLastSubFile = Sources[currentSubFileCount - 1];
long newSubFileSize = QuerySubFileSize(currentSubFileCount - 1, size, SubFileSize);
rc = currentLastSubFile.SetSize(newSubFileSize);
if (rc.IsFailure())
{
return(rc);
}
for (int i = currentSubFileCount; i < newSubFileCount; i++)
{
FsPath newSubFilePath;
unsafe { _ = &newSubFilePath; } // workaround for CS0165
rc = ConcatenationFileSystem.GetSubFilePath(newSubFilePath.Str, FilePath, i);
if (rc.IsFailure())
{
return(rc);
}
newSubFileSize = QuerySubFileSize(i, size, SubFileSize);
rc = BaseFileSystem.CreateFile(newSubFilePath, newSubFileSize, CreateFileOptions.None);
if (rc.IsFailure())
{
return(rc);
}
rc = BaseFileSystem.OpenFile(out IFile newSubFile, newSubFilePath, Mode);
if (rc.IsFailure())
{
return(rc);
}
Sources.Add(newSubFile);
}
}
else
{
for (int i = currentSubFileCount - 1; i > newSubFileCount - 1; i--)
{
Sources[i].Dispose();
Sources.RemoveAt(i);
FsPath subFilePath;
unsafe { _ = &subFilePath; } // workaround for CS0165
rc = ConcatenationFileSystem.GetSubFilePath(subFilePath.Str, FilePath, i);
if (rc.IsFailure())
{
return(rc);
}
rc = BaseFileSystem.DeleteFile(subFilePath);
if (rc.IsFailure())
{
return(rc);
}
}
long newLastFileSize = QuerySubFileSize(newSubFileCount - 1, size, SubFileSize);
rc = Sources[newSubFileCount - 1].SetSize(newLastFileSize);
if (rc.IsFailure())
{
return(rc);
}
}
return(Result.Success);
}
