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using Ryujinx.HLE.HOS.Ipc;
using System;
using System.Collections.Generic;
using System.IO;
namespace Ryujinx.HLE.HOS.Services.FspSrv
{
class IFile : IpcService, IDisposable
{
private Dictionary<int, ServiceProcessRequest> m_Commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
private Stream BaseStream;
public event EventHandler<EventArgs> Disposed;
public string HostPath { get; private set; }
public IFile(Stream BaseStream, string HostPath)
{
m_Commands = new Dictionary<int, ServiceProcessRequest>()
{
{ 0, Read },
{ 1, Write },
{ 2, Flush },
{ 3, SetSize },
{ 4, GetSize }
};
this.BaseStream = BaseStream;
this.HostPath = HostPath;
}
public long Read(ServiceCtx Context)
{
long Position = Context.Request.ReceiveBuff[0].Position;
long Zero = Context.RequestData.ReadInt64();
long Offset = Context.RequestData.ReadInt64();
long Size = Context.RequestData.ReadInt64();
byte[] Data = new byte[Size];
BaseStream.Seek(Offset, SeekOrigin.Begin);
int ReadSize = BaseStream.Read(Data, 0, (int)Size);
Context.Memory.WriteBytes(Position, Data);
Context.ResponseData.Write((long)ReadSize);
return 0;
}
public long Write(ServiceCtx Context)
{
long Position = Context.Request.SendBuff[0].Position;
long Zero = Context.RequestData.ReadInt64();
long Offset = Context.RequestData.ReadInt64();
long Size = Context.RequestData.ReadInt64();
byte[] Data = Context.Memory.ReadBytes(Position, Size);
BaseStream.Seek(Offset, SeekOrigin.Begin);
BaseStream.Write(Data, 0, (int)Size);
return 0;
}
public long Flush(ServiceCtx Context)
{
BaseStream.Flush();
return 0;
}
public long SetSize(ServiceCtx Context)
{
long Size = Context.RequestData.ReadInt64();
BaseStream.SetLength(Size);
return 0;
}
public long GetSize(ServiceCtx Context)
{
Context.ResponseData.Write(BaseStream.Length);
return 0;
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing && BaseStream != null)
{
BaseStream.Dispose();
Disposed?.Invoke(this, EventArgs.Empty);
}
}
}
}
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