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using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Ipc;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
namespace Ryujinx.HLE.HOS.Services.Sm
{
[Service("sm:")]
class IUserInterface : IpcService
{
private Dictionary<string, Type> _services;
private ConcurrentDictionary<string, KPort> _registeredServices;
private bool _isInitialized;
public IUserInterface(ServiceCtx context = null)
{
_registeredServices = new ConcurrentDictionary<string, KPort>();
_services = Assembly.GetExecutingAssembly().GetTypes()
.SelectMany(type => type.GetCustomAttributes(typeof(ServiceAttribute), true)
.Select(service => (((ServiceAttribute)service).Name, type)))
.ToDictionary(service => service.Name, service => service.type);
}
public static void InitializePort(Horizon system)
{
KPort port = new KPort(system, 256, false, 0);
port.ClientPort.SetName("sm:");
port.ClientPort.Service = new IUserInterface();
}
[Command(0)]
// Initialize(pid, u64 reserved)
public ResultCode Initialize(ServiceCtx context)
{
_isInitialized = true;
return ResultCode.Success;
}
[Command(1)]
// GetService(ServiceName name) -> handle<move, session>
public ResultCode GetService(ServiceCtx context)
{
if (!_isInitialized)
{
return ResultCode.NotInitialized;
}
string name = ReadName(context);
if (name == string.Empty)
{
return ResultCode.InvalidName;
}
KSession session = new KSession(context.Device.System);
if (_registeredServices.TryGetValue(name, out KPort port))
{
KernelResult result = port.EnqueueIncomingSession(session.ServerSession);
if (result != KernelResult.Success)
{
throw new InvalidOperationException($"Session enqueue on port returned error \"{result}\".");
}
}
else
{
if (_services.TryGetValue(name, out Type type))
{
ServiceAttribute serviceAttribute = (ServiceAttribute)type.GetCustomAttributes(typeof(ServiceAttribute)).First(service => ((ServiceAttribute)service).Name == name);
session.ClientSession.Service = serviceAttribute.Parameter != null ? (IpcService)Activator.CreateInstance(type, context, serviceAttribute.Parameter)
: (IpcService)Activator.CreateInstance(type, context);
}
else
{
if (ServiceConfiguration.IgnoreMissingServices)
{
Logger.PrintWarning(LogClass.Service, $"Missing service {name} ignored");
session.ClientSession.Service = new DummyService(name);
}
else
{
throw new NotImplementedException(name);
}
}
}
if (context.Process.HandleTable.GenerateHandle(session.ClientSession, out int handle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
context.Response.HandleDesc = IpcHandleDesc.MakeMove(handle);
return ResultCode.Success;
}
[Command(2)]
// RegisterService(ServiceName name, u8, u32 maxHandles) -> handle<move, port>
public ResultCode RegisterService(ServiceCtx context)
{
if (!_isInitialized)
{
return ResultCode.NotInitialized;
}
long namePosition = context.RequestData.BaseStream.Position;
string name = ReadName(context);
context.RequestData.BaseStream.Seek(namePosition + 8, SeekOrigin.Begin);
bool isLight = (context.RequestData.ReadInt32() & 1) != 0;
int maxSessions = context.RequestData.ReadInt32();
if (name == string.Empty)
{
return ResultCode.InvalidName;
}
Logger.PrintInfo(LogClass.ServiceSm, $"Register \"{name}\".");
KPort port = new KPort(context.Device.System, maxSessions, isLight, 0);
if (!_registeredServices.TryAdd(name, port))
{
return ResultCode.AlreadyRegistered;
}
if (context.Process.HandleTable.GenerateHandle(port.ServerPort, out int handle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
context.Response.HandleDesc = IpcHandleDesc.MakeMove(handle);
return ResultCode.Success;
}
[Command(3)]
// UnregisterService(ServiceName name)
public ResultCode UnregisterService(ServiceCtx context)
{
if (!_isInitialized)
{
return ResultCode.NotInitialized;
}
long namePosition = context.RequestData.BaseStream.Position;
string name = ReadName(context);
context.RequestData.BaseStream.Seek(namePosition + 8, SeekOrigin.Begin);
bool isLight = (context.RequestData.ReadInt32() & 1) != 0;
int maxSessions = context.RequestData.ReadInt32();
if (name == string.Empty)
{
return ResultCode.InvalidName;
}
if (!_registeredServices.TryRemove(name, out _))
{
return ResultCode.NotRegistered;
}
return ResultCode.Success;
}
private static string ReadName(ServiceCtx context)
{
string name = string.Empty;
for (int index = 0; index < 8 &&
context.RequestData.BaseStream.Position <
context.RequestData.BaseStream.Length; index++)
{
byte chr = context.RequestData.ReadByte();
if (chr >= 0x20 && chr < 0x7f)
{
name += (char)chr;
}
}
return name;
}
}
}
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