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using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.HOS.Services;
namespace Ryujinx.HLE.HOS.Kernel.Ipc
{
class KClientPort : KSynchronizationObject
{
private int _sessionsCount;
private int _currentCapacity;
private int _maxSessions;
private KPort _parent;
public bool IsLight => _parent.IsLight;
private object _countIncLock;
//TODO: Remove that, we need it for now to allow HLE
//SM implementation to work with the new IPC system.
public IpcService Service { get; set; }
public KClientPort(Horizon system, KPort parent, int maxSessions) : base(system)
{
_maxSessions = maxSessions;
_parent = parent;
_countIncLock = new object();
}
public KernelResult Connect(out KClientSession clientSession)
{
clientSession = null;
KProcess currentProcess = System.Scheduler.GetCurrentProcess();
if (currentProcess.ResourceLimit != null &&
!currentProcess.ResourceLimit.Reserve(LimitableResource.Session, 1))
{
return KernelResult.ResLimitExceeded;
}
lock (_countIncLock)
{
if (_sessionsCount < _maxSessions)
{
_sessionsCount++;
}
else
{
currentProcess.ResourceLimit?.Release(LimitableResource.Session, 1);
return KernelResult.SessionCountExceeded;
}
if (_currentCapacity < _sessionsCount)
{
_currentCapacity = _sessionsCount;
}
}
KSession session = new KSession(System);
if (Service != null)
{
session.ClientSession.Service = Service;
}
KernelResult result = _parent.EnqueueIncomingSession(session.ServerSession);
if (result != KernelResult.Success)
{
session.ClientSession.DecrementReferenceCount();
session.ServerSession.DecrementReferenceCount();
return result;
}
clientSession = session.ClientSession;
return result;
}
public KernelResult ConnectLight(out KLightClientSession clientSession)
{
clientSession = null;
KProcess currentProcess = System.Scheduler.GetCurrentProcess();
if (currentProcess.ResourceLimit != null &&
!currentProcess.ResourceLimit.Reserve(LimitableResource.Session, 1))
{
return KernelResult.ResLimitExceeded;
}
lock (_countIncLock)
{
if (_sessionsCount < _maxSessions)
{
_sessionsCount++;
}
else
{
currentProcess.ResourceLimit?.Release(LimitableResource.Session, 1);
return KernelResult.SessionCountExceeded;
}
}
KLightSession session = new KLightSession(System);
KernelResult result = _parent.EnqueueIncomingLightSession(session.ServerSession);
if (result != KernelResult.Success)
{
session.ClientSession.DecrementReferenceCount();
session.ServerSession.DecrementReferenceCount();
return result;
}
clientSession = session.ClientSession;
return result;
}
public new static KernelResult RemoveName(Horizon system, string name)
{
KAutoObject foundObj = FindNamedObject(system, name);
if (!(foundObj is KClientPort))
{
return KernelResult.NotFound;
}
return KAutoObject.RemoveName(system, name);
}
}
}
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