ryujinx/Ryujinx.HLE/HOS/Services/Time/ISystemClock.cs
Thomas Guillemard 97d0c62423 Accurately implement steady & system clocks (#732)
* Improve SteadyClock implementation accuracy

* Rewrite system clocks to be accurate

* Implement IStaticService 100 & 101

* Add time:* permissions

* Address comments

* Realign TimePermissions definitions

* Address gdk's comments

* Fix after rebase
2019-07-14 22:50:11 +02:00

107 lines
3.4 KiB
C#

using Ryujinx.Common;
using Ryujinx.HLE.HOS.Services.Time.Clock;
namespace Ryujinx.HLE.HOS.Services.Time
{
class ISystemClock : IpcService
{
private SystemClockCore _clockCore;
private bool _writePermission;
public ISystemClock(SystemClockCore clockCore, bool writePermission)
{
_clockCore = clockCore;
_writePermission = writePermission;
}
[Command(0)]
// GetCurrentTime() -> nn::time::PosixTime
public ResultCode GetCurrentTime(ServiceCtx context)
{
SteadyClockCore steadyClockCore = _clockCore.GetSteadyClockCore();
SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(context.Thread);
ResultCode result = _clockCore.GetSystemClockContext(context.Thread, out SystemClockContext clockContext);
if (result == ResultCode.Success)
{
result = ResultCode.TimeMismatch;
if (currentTimePoint.ClockSourceId == clockContext.SteadyTimePoint.ClockSourceId)
{
ulong posixTime = clockContext.Offset + currentTimePoint.TimePoint;
context.ResponseData.Write(posixTime);
result = 0;
}
}
return result;
}
[Command(1)]
// SetCurrentTime(nn::time::PosixTime)
public ResultCode SetCurrentTime(ServiceCtx context)
{
if (!_writePermission)
{
return ResultCode.PermissionDenied;
}
ulong posixTime = context.RequestData.ReadUInt64();
SteadyClockCore steadyClockCore = _clockCore.GetSteadyClockCore();
SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(context.Thread);
SystemClockContext clockContext = new SystemClockContext()
{
Offset = posixTime - currentTimePoint.TimePoint,
SteadyTimePoint = currentTimePoint
};
ResultCode result = _clockCore.SetSystemClockContext(clockContext);
if (result == ResultCode.Success)
{
result = _clockCore.Flush(clockContext);
}
return result;
}
[Command(2)]
// GetSystemClockContext() -> nn::time::SystemClockContext
public ResultCode GetSystemClockContext(ServiceCtx context)
{
ResultCode result = _clockCore.GetSystemClockContext(context.Thread, out SystemClockContext clockContext);
if (result == ResultCode.Success)
{
context.ResponseData.WriteStruct(clockContext);
}
return result;
}
[Command(3)]
// SetSystemClockContext(nn::time::SystemClockContext)
public ResultCode SetSystemClockContext(ServiceCtx context)
{
if (!_writePermission)
{
return ResultCode.PermissionDenied;
}
SystemClockContext clockContext = context.RequestData.ReadStruct<SystemClockContext>();
ResultCode result = _clockCore.SetSystemClockContext(clockContext);
if (result == ResultCode.Success)
{
result = _clockCore.Flush(clockContext);
}
return result;
}
}
}