ryujinx/Ryujinx.HLE/HOS/Services/FspSrv/IDirectory.cs
Ac_K 560ccbeb2d Refactoring commands handling (#728)
* Refactoring commands handling

- Use Reflection to handle commands ID.
- Add all symbols (from SwIPC so not all time accurate).
- Re-sort some services commands methods.
- Some cleanup.
- Keep some empty constructor for consistency.

* Fix order in IProfile
2019-07-11 22:13:43 -03:00

85 lines
2.5 KiB
C#

using LibHac;
using System.Collections.Generic;
using System.Text;
namespace Ryujinx.HLE.HOS.Services.FspSrv
{
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 long 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 ex.ResultValue.Value;
}
context.ResponseData.Write((long)readCount);
return 0;
}
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 long GetEntryCount(ServiceCtx context)
{
try
{
context.ResponseData.Write((long)_baseDirectory.GetEntryCount());
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
return 0;
}
}
}