ryujinx/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs

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using LibHac;
using LibHac.Fs;
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
{
class IDirectory : IpcService
{
private LibHac.Fs.IDirectory _baseDirectory;
public IDirectory(LibHac.Fs.IDirectory directory)
{
_baseDirectory = directory;
}
[Command(0)]
// Read() -> (u64 count, buffer<nn::fssrv::sf::IDirectoryEntry, 6, 0> entries)
public ResultCode Read(ServiceCtx context)
{
long bufferPosition = context.Request.ReceiveBuff[0].Position;
long bufferLen = context.Request.ReceiveBuff[0].Size;
byte[] entriesBytes = new byte[bufferLen];
Span<DirectoryEntry> entries = MemoryMarshal.Cast<byte, DirectoryEntry>(entriesBytes);
Result result = _baseDirectory.Read(out long entriesRead, entries);
context.Memory.WriteBytes(bufferPosition, entriesBytes);
context.ResponseData.Write(entriesRead);
return (ResultCode)result.Value;
}
[Command(1)]
// GetEntryCount() -> u64
public ResultCode GetEntryCount(ServiceCtx context)
{
Result result = _baseDirectory.GetEntryCount(out long entryCount);
context.ResponseData.Write(entryCount);
return (ResultCode)result.Value;
}
}
}