public int GetEntryCount()
{
int count = 0;
SaveFindPosition position = InitialPosition;
HierarchicalSaveFileTable tab = ParentFileSystem.FileTable;
if (Mode.HasFlag(OpenDirectoryMode.Directories))
{
while (tab.FindNextDirectory(ref position, out string _))
{
count++;
}
}
if (Mode.HasFlag(OpenDirectoryMode.Files))
{
while (tab.FindNextFile(ref position, out SaveFileInfo _, out string _))
{
count++;
}
}
return(count);
}
public SaveDataDirectory(SaveDataFileSystemCore fs, string path, SaveFindPosition position, OpenDirectoryMode mode)
{
ParentFileSystem = fs;
InitialPosition = position;
FullPath = path;
Mode = mode;
}
public bool FindNextDirectory(ref SaveFindPosition position, out string name)
{
if (position.NextDirectory == 0)
{
name = default;
return(false);
}
Span <byte> nameBytes = stackalloc byte[DirectoryTable.MaxNameLength];
bool success = DirectoryTable.TryGetValue(position.NextDirectory, out TableEntry <SaveFindPosition> entry, ref nameBytes);
// todo error message
if (!success)
{
name = default;
return(false);
}
position.NextDirectory = entry.NextSibling;
name = Util.GetUtf8StringNullTerminated(nameBytes);
return(true);
}
public bool FindNextFile(ref SaveFindPosition position, out SaveFileInfo info, out string name)
{
if (position.NextFile == 0)
{
info = default;
name = default;
return(false);
}
Span <byte> nameBytes = stackalloc byte[FileTable.MaxNameLength];
bool success = FileTable.TryGetValue(position.NextFile, out TableEntry <SaveFileInfo> entry, ref nameBytes);
// todo error message
if (!success)
{
info = default;
name = default;
return(false);
}
position.NextFile = entry.NextSibling;
info = entry.Value;
name = Util.GetUtf8StringNullTerminated(nameBytes);
return(true);
}
public bool TryOpenDirectory(string path, out SaveFindPosition position)
{
if (!FindPathRecursive(Util.GetUtf8Bytes(path), out SaveEntryKey key))
{
position = default;
return(false);
}
if (DirectoryTable.TryGetValue(ref key, out TableEntry <SaveFindPosition> entry))
{
position = entry.Value;
return(true);
}
position = default;
return(false);
}
public IEnumerable <DirectoryEntry> Read()
{
SaveFindPosition position = InitialPosition;
HierarchicalSaveFileTable tab = ParentFileSystem.FileTable;
if (Mode.HasFlag(OpenDirectoryMode.Directories))
{
while (tab.FindNextDirectory(ref position, out string name))
{
yield return(new DirectoryEntry(name, PathTools.Combine(FullPath, name), DirectoryEntryType.Directory, 0));
}
}
if (Mode.HasFlag(OpenDirectoryMode.Files))
{
while (tab.FindNextFile(ref position, out SaveFileInfo info, out string name))
{
yield return(new DirectoryEntry(name, PathTools.Combine(FullPath, name), DirectoryEntryType.File, info.Length));
}
}
}
