public VirtualFileSystem(VirtualFileSystemParams param) : base(param)
{
var rootDir = new VfsRamDirectory(this, "/", true);
rootDir.AddLinkRef();
this.Root = rootDir;
}
protected override async Task CreateDirectoryImplAsync(string directoryPath, FileFlags flags = FileFlags.None, CancellationToken cancel = default)
{
using (VfsPathParserContext ctx = await ParsePathInternalAsync(directoryPath, cancel))
{
if (ctx.Exception == null)
{
if (ctx.LastEntity is VfsDirectory)
{
// Already exists
return;
}
else
{
// There is existing another type object
throw new VfsException(directoryPath, $"There are existing object at the speficied path.");
}
}
if (ctx.Exception is VfsNotFoundException && ctx.RemainingPathElements.Count >= 1 && ctx.LastEntity is VfsDirectory)
{
var lastDir = (VfsDirectory)ctx.LastEntity;
while (true)
{
if (ctx.RemainingPathElements.TryDequeue(out string?nextDirName) == false)
{
return;
}
nextDirName._MarkNotNull();
var newDirectory = new VfsRamDirectory(this, nextDirName);
try
{
await lastDir.AddDirectoryAsync(newDirectory);
}
catch
{
await newDirectory.ReleaseLinkAsync(true);
throw;
}
lastDir = newDirectory;
}
}
else
{
throw ctx.Exception;
}
}
}
