ryujinx/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs
Ac_K a0720b5681 Refactoring HOS folder structure (#771)
* Refactoring HOS folder structure

Refactoring HOS folder structure:

- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close #766 and #753).

* Remove Types namespaces
2019-09-19 10:45:11 +10:00

85 lines
2.6 KiB
C#

using LibHac;
using System.Collections.Generic;
using System.Text;
namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
{
class IDirectory : IpcService
{
private const int DirectoryEntrySize = 0x310;
private IEnumerator<LibHac.Fs.DirectoryEntry> _enumerator;
private LibHac.Fs.IDirectory _baseDirectory;
public IDirectory(LibHac.Fs.IDirectory directory)
{
_baseDirectory = directory;
_enumerator = directory.Read().GetEnumerator();
}
[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;
int maxReadCount = (int)(bufferLen / DirectoryEntrySize);
int readCount = 0;
try
{
while (readCount < maxReadCount && _enumerator.MoveNext())
{
long position = bufferPosition + readCount * DirectoryEntrySize;
WriteDirectoryEntry(context, position, _enumerator.Current);
readCount++;
}
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
context.ResponseData.Write((long)readCount);
return ResultCode.Success;
}
private void WriteDirectoryEntry(ServiceCtx context, long position, LibHac.Fs.DirectoryEntry entry)
{
for (int offset = 0; offset < 0x300; offset += 8)
{
context.Memory.WriteInt64(position + offset, 0);
}
byte[] nameBuffer = Encoding.UTF8.GetBytes(entry.Name);
context.Memory.WriteBytes(position, nameBuffer);
context.Memory.WriteInt32(position + 0x300, (int)entry.Attributes);
context.Memory.WriteInt32(position + 0x304, (byte)entry.Type);
context.Memory.WriteInt64(position + 0x308, entry.Size);
}
[Command(1)]
// GetEntryCount() -> u64
public ResultCode GetEntryCount(ServiceCtx context)
{
try
{
context.ResponseData.Write((long)_baseDirectory.GetEntryCount());
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
return ResultCode.Success;
}
}
}