JinxRyu/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs
gdkchan 0c87bf9ea4
Refactor CPU interface to allow the implementation of other CPU emulators (#3362)
* Refactor CPU interface

* Use IExecutionContext interface on SVC handler, change how CPU interrupts invokes the handlers

* Make CpuEngine take a ITickSource rather than returning one

The previous implementation had the scenario where the CPU engine had to implement the tick source in mind, like for example, when we have a hypervisor and the game can read CNTPCT on the host directly. However given that we need to do conversion due to different frequencies anyway, it's not worth it. It's better to just let the user pass the tick source and redirect any reads to CNTPCT to the user tick source

* XML docs for the public interfaces

* PPTC invalidation due to NativeInterface function name changes

* Fix build of the CPU tests

* PR feedback
2022-05-31 16:29:35 -03:00

108 lines
3.6 KiB
C#

using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Kernel.Threading;
using System;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
class StandardUserSystemClockCore : SystemClockCore
{
private StandardLocalSystemClockCore _localSystemClockCore;
private StandardNetworkSystemClockCore _networkSystemClockCore;
private bool _autoCorrectionEnabled;
private SteadyClockTimePoint _autoCorrectionTime;
private KEvent _autoCorrectionEvent;
public StandardUserSystemClockCore(StandardLocalSystemClockCore localSystemClockCore, StandardNetworkSystemClockCore networkSystemClockCore) : base(localSystemClockCore.GetSteadyClockCore())
{
_localSystemClockCore = localSystemClockCore;
_networkSystemClockCore = networkSystemClockCore;
_autoCorrectionEnabled = false;
_autoCorrectionTime = SteadyClockTimePoint.GetRandom();
_autoCorrectionEvent = null;
}
protected override ResultCode Flush(SystemClockContext context)
{
// As UserSystemClock isn't a real system clock, this shouldn't happens.
throw new NotImplementedException();
}
public override ResultCode GetClockContext(ITickSource tickSource, out SystemClockContext context)
{
ResultCode result = ApplyAutomaticCorrection(tickSource, false);
context = new SystemClockContext();
if (result == ResultCode.Success)
{
return _localSystemClockCore.GetClockContext(tickSource, out context);
}
return result;
}
public override ResultCode SetClockContext(SystemClockContext context)
{
return ResultCode.NotImplemented;
}
private ResultCode ApplyAutomaticCorrection(ITickSource tickSource, bool autoCorrectionEnabled)
{
ResultCode result = ResultCode.Success;
if (_autoCorrectionEnabled != autoCorrectionEnabled && _networkSystemClockCore.IsClockSetup(tickSource))
{
result = _networkSystemClockCore.GetClockContext(tickSource, out SystemClockContext context);
if (result == ResultCode.Success)
{
_localSystemClockCore.SetClockContext(context);
}
}
return result;
}
internal void CreateAutomaticCorrectionEvent(Horizon system)
{
_autoCorrectionEvent = new KEvent(system.KernelContext);
}
public ResultCode SetAutomaticCorrectionEnabled(ITickSource tickSource, bool autoCorrectionEnabled)
{
ResultCode result = ApplyAutomaticCorrection(tickSource, autoCorrectionEnabled);
if (result == ResultCode.Success)
{
_autoCorrectionEnabled = autoCorrectionEnabled;
}
return result;
}
public bool IsAutomaticCorrectionEnabled()
{
return _autoCorrectionEnabled;
}
public KReadableEvent GetAutomaticCorrectionReadableEvent()
{
return _autoCorrectionEvent.ReadableEvent;
}
public void SetAutomaticCorrectionUpdatedTime(SteadyClockTimePoint steadyClockTimePoint)
{
_autoCorrectionTime = steadyClockTimePoint;
}
public SteadyClockTimePoint GetAutomaticCorrectionUpdatedTime()
{
return _autoCorrectionTime;
}
public void SignalAutomaticCorrectionEvent()
{
_autoCorrectionEvent.WritableEvent.Signal();
}
}
}