private KernelResult ConnectToNamedPort(ulong namePtr, out int handle)
{
handle = 0;
if (!KernelTransfer.UserToKernelString(_system, namePtr, 12, out string name))
{
return(KernelResult.UserCopyFailed);
}
if (name.Length > 11)
{
return(KernelResult.MaximumExceeded);
}
KAutoObject autoObj = KAutoObject.FindNamedObject(_system, name);
if (!(autoObj is KClientPort clientPort))
{
return(KernelResult.NotFound);
}
KProcess currentProcess = _system.Scheduler.GetCurrentProcess();
KernelResult result = currentProcess.HandleTable.ReserveHandle(out handle);
if (result != KernelResult.Success)
{
return(result);
}
result = clientPort.Connect(out KClientSession clientSession);
if (result != KernelResult.Success)
{
currentProcess.HandleTable.CancelHandleReservation(handle);
return(result);
}
currentProcess.HandleTable.SetReservedHandleObj(handle, clientSession);
clientSession.DecrementReferenceCount();
return(result);
}
private KernelResult ManageNamedPort(ulong namePtr, int maxSessions, out int handle)
{
handle = 0;
if (!KernelTransfer.UserToKernelString(_system, namePtr, 12, out string name))
{
return(KernelResult.UserCopyFailed);
}
if (maxSessions < 0 || name.Length > 11)
{
return(KernelResult.MaximumExceeded);
}
if (maxSessions == 0)
{
return(KClientPort.RemoveName(_system, name));
}
KPort port = new KPort(_system);
KProcess currentProcess = _system.Scheduler.GetCurrentProcess();
KernelResult result = currentProcess.HandleTable.GenerateHandle(port.ServerPort, out handle);
if (result != KernelResult.Success)
{
return(result);
}
port.Initialize(maxSessions, false, 0);
result = port.SetName(name);
if (result != KernelResult.Success)
{
currentProcess.HandleTable.CloseHandle(handle);
}
return(result);
}