Ryujinx/Ryujinx.Core/OsHle/Services/IpcService.cs

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using Ryujinx.Core.OsHle.Handles;
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using Ryujinx.Core.OsHle.Ipc;
using System;
using System.Collections.Generic;
using System.IO;
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namespace Ryujinx.Core.OsHle.Services
{
abstract class IpcService : IIpcService
{
public abstract IReadOnlyDictionary<int, ServiceProcessRequest> Commands { get; }
private IdDictionary DomainObjects;
private int SelfId;
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private bool IsDomain;
public IpcService()
{
DomainObjects = new IdDictionary();
SelfId = -1;
}
public int ConvertToDomain()
{
if (SelfId == -1)
{
SelfId = DomainObjects.Add(this);
}
IsDomain = true;
return SelfId;
}
public void ConvertToSession()
{
IsDomain = false;
}
public void CallMethod(ServiceCtx Context)
{
IIpcService Service = this;
if (IsDomain)
{
int DomainWord0 = Context.RequestData.ReadInt32();
int DomainObjId = Context.RequestData.ReadInt32();
long Padding = Context.RequestData.ReadInt64();
int DomainCmd = DomainWord0 & 0xff;
if (DomainCmd == 1)
{
Service = GetObject(DomainObjId);
Context.ResponseData.Write(0L);
Context.ResponseData.Write(0L);
}
else if (DomainCmd == 2)
{
Delete(DomainObjId);
Context.ResponseData.Write(0L);
return;
}
else
{
throw new NotImplementedException($"Domain command: {DomainCmd}");
}
}
long SfciMagic = Context.RequestData.ReadInt64();
int CommandId = (int)Context.RequestData.ReadInt64();
if (Service.Commands.TryGetValue(CommandId, out ServiceProcessRequest ProcessRequest))
{
Context.ResponseData.BaseStream.Seek(IsDomain ? 0x20 : 0x10, SeekOrigin.Begin);
Logging.Trace(LogClass.KernelIpc, $"{Service.GetType().Name}: {ProcessRequest.Method.Name}");
long Result = ProcessRequest(Context);
if (IsDomain)
{
foreach (int Id in Context.Response.ResponseObjIds)
{
Context.ResponseData.Write(Id);
}
Context.ResponseData.BaseStream.Seek(0, SeekOrigin.Begin);
Context.ResponseData.Write(Context.Response.ResponseObjIds.Count);
}
Context.ResponseData.BaseStream.Seek(IsDomain ? 0x10 : 0, SeekOrigin.Begin);
Context.ResponseData.Write(IpcMagic.Sfco);
Context.ResponseData.Write(Result);
}
else
{
string DbgMessage = $"{Context.Session.ServiceName} {Service.GetType().Name}: {CommandId}";
throw new NotImplementedException(DbgMessage);
}
}
protected static void MakeObject(ServiceCtx Context, IpcService Obj)
{
IpcService Service = Context.Session.Service;
if (Service.IsDomain)
{
Context.Response.ResponseObjIds.Add(Service.Add(Obj));
}
else
{
KSession Session = new KSession(Obj, Context.Session.ServiceName);
int Handle = Context.Process.HandleTable.OpenHandle(Session);
Context.Response.HandleDesc = IpcHandleDesc.MakeMove(Handle);
}
}
private int Add(IIpcService Obj)
{
return DomainObjects.Add(Obj);
}
private bool Delete(int Id)
{
object Obj = DomainObjects.Delete(Id);
if (Obj is IDisposable DisposableObj)
{
DisposableObj.Dispose();
}
return Obj != null;
}
private IIpcService GetObject(int Id)
{
return DomainObjects.GetData<IIpcService>(Id);
}
}
}