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Accurately implement steady & system clocks (#732)

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* 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
This commit is contained in:
Thomas Guillemard 2019-07-14 22:50:11 +02:00 committed by Ac_K
parent 4ad3936afd
commit 97d0c62423
13 changed files with 522 additions and 82 deletions
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6
Ryujinx.HLE/HOS/Horizon.cs
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@ -9,6 +9,7 @@ using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Services.Sm;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using Ryujinx.HLE.HOS.SystemState;
using Ryujinx.HLE.Loaders.Executables;
using Ryujinx.HLE.Loaders.Npdm;
@ -195,6 +196,11 @@ namespace Ryujinx.HLE.HOS
LoadKeySet();
ContentManager = new ContentManager(device);
// NOTE: Now we set the default internal offset of the steady clock like Nintendo does... even if it's strange this is accurate.
// TODO: use bpc:r and set:sys (and set external clock source id from settings)
DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
SteadyClockCore.Instance.SetInternalOffset(new TimeSpanType(((ulong)(DateTime.Now.ToUniversalTime() - UnixEpoch).TotalSeconds) * 1000000000));
}
public void LoadCart(string exeFsDir, string romFsFile = null)

40
Ryujinx.HLE/HOS/Services/Time/Clock/ClockTypes.cs Normal file
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@ -0,0 +1,40 @@
using Ryujinx.HLE.Utilities;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
[StructLayout(LayoutKind.Sequential)]
struct TimeSpanType
{
public ulong NanoSeconds;
public TimeSpanType(ulong nanoSeconds)
{
NanoSeconds = nanoSeconds;
}
public ulong ToSeconds()
{
return NanoSeconds / 1000000000;
}
public static TimeSpanType FromTicks(ulong ticks, ulong frequency)
{
return new TimeSpanType(ticks * 1000000000 / frequency);
}
}
[StructLayout(LayoutKind.Sequential)]
struct SteadyClockTimePoint
{
public ulong TimePoint;
public UInt128 ClockSourceId;
}
[StructLayout(LayoutKind.Sequential)]
struct SystemClockContext
{
public ulong Offset;
public SteadyClockTimePoint SteadyTimePoint;
}
}

59
Ryujinx.HLE/HOS/Services/Time/Clock/StandardLocalSystemClockCore.cs Normal file
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@ -0,0 +1,59 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
class StandardLocalSystemClockCore : SystemClockCore
{
private SteadyClockCore _steadyClockCore;
private SystemClockContext _context;
private static StandardLocalSystemClockCore instance;
public static StandardLocalSystemClockCore Instance
{
get
{
if (instance == null)
{
instance = new StandardLocalSystemClockCore(SteadyClockCore.Instance);
}
return instance;
}
}
public StandardLocalSystemClockCore(SteadyClockCore steadyClockCore)
{
_steadyClockCore = steadyClockCore;
_context = new SystemClockContext();
_context.SteadyTimePoint.ClockSourceId = steadyClockCore.GetClockSourceId();
}
public override ResultCode Flush(SystemClockContext context)
{
// TODO: set:sys SetUserSystemClockContext
return ResultCode.Success;
}
public override SteadyClockCore GetSteadyClockCore()
{
return _steadyClockCore;
}
public override ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context)
{
context = _context;
return ResultCode.Success;
}
public override ResultCode SetSystemClockContext(SystemClockContext context)
{
_context = context;
return ResultCode.Success;
}
}
}

59
Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs Normal file
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@ -0,0 +1,59 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
class StandardNetworkSystemClockCore : SystemClockCore
{
private SteadyClockCore _steadyClockCore;
private SystemClockContext _context;
private static StandardNetworkSystemClockCore instance;
public static StandardNetworkSystemClockCore Instance
{
get
{
if (instance == null)
{
instance = new StandardNetworkSystemClockCore(SteadyClockCore.Instance);
}
return instance;
}
}
public StandardNetworkSystemClockCore(SteadyClockCore steadyClockCore)
{
_steadyClockCore = steadyClockCore;
_context = new SystemClockContext();
_context.SteadyTimePoint.ClockSourceId = steadyClockCore.GetClockSourceId();
}
public override ResultCode Flush(SystemClockContext context)
{
// TODO: set:sys SetNetworkSystemClockContext
return ResultCode.Success;
}
public override SteadyClockCore GetSteadyClockCore()
{
return _steadyClockCore;
}
public override ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context)
{
context = _context;
return ResultCode.Success;
}
public override ResultCode SetSystemClockContext(SystemClockContext context)
{
_context = context;
return ResultCode.Success;
}
}
}

96
Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs Normal file
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@ -0,0 +1,96 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
class StandardUserSystemClockCore : SystemClockCore
{
private StandardLocalSystemClockCore _localSystemClockCore;
private StandardNetworkSystemClockCore _networkSystemClockCore;
private bool _autoCorrectionEnabled;
private static StandardUserSystemClockCore instance;
public static StandardUserSystemClockCore Instance
{
get
{
if (instance == null)
{
instance = new StandardUserSystemClockCore(StandardLocalSystemClockCore.Instance, StandardNetworkSystemClockCore.Instance);
}
return instance;
}
}
public StandardUserSystemClockCore(StandardLocalSystemClockCore localSystemClockCore, StandardNetworkSystemClockCore networkSystemClockCore)
{
_localSystemClockCore = localSystemClockCore;
_networkSystemClockCore = networkSystemClockCore;
_autoCorrectionEnabled = false;
}
public override ResultCode Flush(SystemClockContext context)
{
return ResultCode.NotImplemented;
}
public override SteadyClockCore GetSteadyClockCore()
{
return _localSystemClockCore.GetSteadyClockCore();
}
public override ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context)
{
ResultCode result = ApplyAutomaticCorrection(thread, false);
context = new SystemClockContext();
if (result == ResultCode.Success)
{
return _localSystemClockCore.GetSystemClockContext(thread, out context);
}
return result;
}
public override ResultCode SetSystemClockContext(SystemClockContext context)
{
return ResultCode.NotImplemented;
}
private ResultCode ApplyAutomaticCorrection(KThread thread, bool autoCorrectionEnabled)
{
ResultCode result = ResultCode.Success;
if (_autoCorrectionEnabled != autoCorrectionEnabled && _networkSystemClockCore.IsClockSetup(thread))
{
result = _networkSystemClockCore.GetSystemClockContext(thread, out SystemClockContext context);
if (result == ResultCode.Success)
{
_localSystemClockCore.SetSystemClockContext(context);
}
}
return result;
}
public ResultCode SetAutomaticCorrectionEnabled(KThread thread, bool autoCorrectionEnabled)
{
ResultCode result = ApplyAutomaticCorrection(thread, autoCorrectionEnabled);
if (result == ResultCode.Success)
{
_autoCorrectionEnabled = autoCorrectionEnabled;
}
return result;
}
public bool IsAutomaticCorrectionEnabled()
{
return _autoCorrectionEnabled;
}
}
}

86
Ryujinx.HLE/HOS/Services/Time/Clock/SteadyClockCore.cs Normal file
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@ -0,0 +1,86 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.Utilities;
using System;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
class SteadyClockCore
{
private TimeSpanType _testOffset;
private TimeSpanType _internalOffset;
private UInt128 _clockSourceId;
private static SteadyClockCore instance;
public static SteadyClockCore Instance
{
get
{
if (instance == null)
{
instance = new SteadyClockCore();
}
return instance;
}
}
private SteadyClockCore()
{
_testOffset = new TimeSpanType(0);
_internalOffset = new TimeSpanType(0);
_clockSourceId = new UInt128(Guid.NewGuid().ToByteArray());
}
private SteadyClockTimePoint GetTimePoint(KThread thread)
{
SteadyClockTimePoint result = new SteadyClockTimePoint
{
TimePoint = 0,
ClockSourceId = _clockSourceId
};
TimeSpanType ticksTimeSpan = TimeSpanType.FromTicks(thread.Context.ThreadState.CntpctEl0, thread.Context.ThreadState.CntfrqEl0);
result.TimePoint = _internalOffset.ToSeconds() + ticksTimeSpan.ToSeconds();
return result;
}
public UInt128 GetClockSourceId()
{
return _clockSourceId;
}
public SteadyClockTimePoint GetCurrentTimePoint(KThread thread)
{
SteadyClockTimePoint result = GetTimePoint(thread);
result.TimePoint += _testOffset.ToSeconds();
return result;
}
public TimeSpanType GetTestOffset()
{
return _testOffset;
}
public void SetTestOffset(TimeSpanType testOffset)
{
_testOffset = testOffset;
}
// TODO: check if this is accurate
public TimeSpanType GetInternalOffset()
{
return _internalOffset;
}
// TODO: check if this is accurate
public void SetInternalOffset(TimeSpanType internalOffset)
{
_internalOffset = internalOffset;
}
}
}

31
Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs Normal file
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@ -0,0 +1,31 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
namespace Ryujinx.HLE.HOS.Services.Time.Clock
{
abstract class SystemClockCore
{
public abstract SteadyClockCore GetSteadyClockCore();
public abstract ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context);
public abstract ResultCode SetSystemClockContext(SystemClockContext context);
public abstract ResultCode Flush(SystemClockContext context);
public bool IsClockSetup(KThread thread)
{
ResultCode result = GetSystemClockContext(thread, out SystemClockContext context);
if (result == ResultCode.Success)
{
SteadyClockCore steadyClockCore = GetSteadyClockCore();
SteadyClockTimePoint steadyClockTimePoint = steadyClockCore.GetCurrentTimePoint(thread);
return steadyClockTimePoint.ClockSourceId == context.SteadyTimePoint.ClockSourceId;
}
return false;
}
}
}

44
Ryujinx.HLE/HOS/Services/Time/IStaticService.cs
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@ -1,25 +1,31 @@
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using System;
namespace Ryujinx.HLE.HOS.Services.Time
{
[Service("time:a")]
[Service("time:s")]
[Service("time:u")]
[Service("time:a", TimePermissions.Applet)]
[Service("time:s", TimePermissions.System)]
[Service("time:u", TimePermissions.User)]
class IStaticService : IpcService
{
private TimePermissions _permissions;
private int _timeSharedMemoryNativeHandle = 0;
private static readonly DateTime StartupDate = DateTime.UtcNow;
public IStaticService(ServiceCtx context) { }
public IStaticService(ServiceCtx context, TimePermissions permissions)
{
_permissions = permissions;
}
[Command(0)]
// GetStandardUserSystemClock() -> object<nn::timesrv::detail::service::ISystemClock>
public ResultCode GetStandardUserSystemClock(ServiceCtx context)
{
MakeObject(context, new ISystemClock(SystemClockType.User));
MakeObject(context, new ISystemClock(StandardUserSystemClockCore.Instance, (_permissions & TimePermissions.UserSystemClockWritableMask) != 0));
return ResultCode.Success;
}
@ -28,7 +34,7 @@ namespace Ryujinx.HLE.HOS.Services.Time
// GetStandardNetworkSystemClock() -> object<nn::timesrv::detail::service::ISystemClock>
public ResultCode GetStandardNetworkSystemClock(ServiceCtx context)
{
MakeObject(context, new ISystemClock(SystemClockType.Network));
MakeObject(context, new ISystemClock(StandardNetworkSystemClockCore.Instance, (_permissions & TimePermissions.NetworkSystemClockWritableMask) != 0));
return ResultCode.Success;
}
@ -55,7 +61,7 @@ namespace Ryujinx.HLE.HOS.Services.Time
// GetStandardLocalSystemClock() -> object<nn::timesrv::detail::service::ISystemClock>
public ResultCode GetStandardLocalSystemClock(ServiceCtx context)
{
MakeObject(context, new ISystemClock(SystemClockType.Local));
MakeObject(context, new ISystemClock(StandardLocalSystemClockCore.Instance, (_permissions & TimePermissions.LocalSystemClockWritableMask) != 0));
return ResultCode.Success;
}
@ -77,10 +83,34 @@ namespace Ryujinx.HLE.HOS.Services.Time
return ResultCode.Success;
}
[Command(100)]
// IsStandardUserSystemClockAutomaticCorrectionEnabled() -> bool
public ResultCode IsStandardUserSystemClockAutomaticCorrectionEnabled(ServiceCtx context)
{
context.ResponseData.Write(StandardUserSystemClockCore.Instance.IsAutomaticCorrectionEnabled());
return ResultCode.Success;
}
[Command(101)]
// SetStandardUserSystemClockAutomaticCorrectionEnabled(b8)
public ResultCode SetStandardUserSystemClockAutomaticCorrectionEnabled(ServiceCtx context)
{
if ((_permissions & TimePermissions.UserSystemClockWritableMask) == 0)
{
return ResultCode.PermissionDenied;
}
bool autoCorrectionEnabled = context.RequestData.ReadBoolean();
return StandardUserSystemClockCore.Instance.SetAutomaticCorrectionEnabled(context.Thread, autoCorrectionEnabled);
}
[Command(300)] // 4.0.0+
// CalculateMonotonicSystemClockBaseTimePoint(nn::time::SystemClockContext) -> u64
public ResultCode CalculateMonotonicSystemClockBaseTimePoint(ServiceCtx context)
{
// TODO: reimplement this
long timeOffset = (long)(DateTime.UtcNow - StartupDate).TotalSeconds;
long systemClockContextEpoch = context.RequestData.ReadInt64();

43
Ryujinx.HLE/HOS/Services/Time/ISteadyClock.cs
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@ -1,26 +1,17 @@
using System;
using Ryujinx.Common;
using Ryujinx.HLE.HOS.Services.Time.Clock;
namespace Ryujinx.HLE.HOS.Services.Time
{
class ISteadyClock : IpcService
{
private ulong _testOffset;
public ISteadyClock()
{
_testOffset = 0;
}
[Command(0)]
// GetCurrentTimePoint() -> nn::time::SteadyClockTimePoint
public ResultCode GetCurrentTimePoint(ServiceCtx context)
{
context.ResponseData.Write((long)(System.Diagnostics.Process.GetCurrentProcess().StartTime - DateTime.Now).TotalSeconds);
SteadyClockTimePoint currentTimePoint = SteadyClockCore.Instance.GetCurrentTimePoint(context.Thread);
for (int i = 0; i < 0x10; i++)
{
context.ResponseData.Write((byte)0);
}
context.ResponseData.WriteStruct(currentTimePoint);
return ResultCode.Success;
}
@ -29,7 +20,7 @@ namespace Ryujinx.HLE.HOS.Services.Time
// GetTestOffset() -> nn::TimeSpanType
public ResultCode GetTestOffset(ServiceCtx context)
{
context.ResponseData.Write(_testOffset);
context.ResponseData.WriteStruct(SteadyClockCore.Instance.GetTestOffset());
return ResultCode.Success;
}
@ -38,7 +29,29 @@ namespace Ryujinx.HLE.HOS.Services.Time
// SetTestOffset(nn::TimeSpanType)
public ResultCode SetTestOffset(ServiceCtx context)
{
_testOffset = context.RequestData.ReadUInt64();
TimeSpanType testOffset = context.RequestData.ReadStruct<TimeSpanType>();
SteadyClockCore.Instance.SetTestOffset(testOffset);
return 0;
}
[Command(200)] // 3.0.0+
// GetInternalOffset() -> nn::TimeSpanType
public ResultCode GetInternalOffset(ServiceCtx context)
{
context.ResponseData.WriteStruct(SteadyClockCore.Instance.GetInternalOffset());
return ResultCode.Success;
}
[Command(201)] // 3.0.0-3.0.2
// SetInternalOffset(nn::TimeSpanType)
public ResultCode SetInternalOffset(ServiceCtx context)
{
TimeSpanType internalOffset = context.RequestData.ReadStruct<TimeSpanType>();
SteadyClockCore.Instance.SetInternalOffset(internalOffset);
return ResultCode.Success;
}

108
Ryujinx.HLE/HOS/Services/Time/ISystemClock.cs
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@ -1,97 +1,107 @@
using System;
using Ryujinx.Common;
using Ryujinx.HLE.HOS.Services.Time.Clock;
namespace Ryujinx.HLE.HOS.Services.Time
{
class ISystemClock : IpcService
{
private static readonly DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
private SystemClockCore _clockCore;
private bool _writePermission;
private SystemClockType _clockType;
private DateTime _systemClockContextEpoch;
private long _systemClockTimePoint;
private byte[] _systemClockContextEnding;
private long _timeOffset;
public ISystemClock(SystemClockType clockType)
public ISystemClock(SystemClockCore clockCore, bool writePermission)
{
_clockType = clockType;
_systemClockContextEpoch = System.Diagnostics.Process.GetCurrentProcess().StartTime;
_systemClockContextEnding = new byte[0x10];
_timeOffset = 0;
if (clockType == SystemClockType.User ||
clockType == SystemClockType.Network)
{
_systemClockContextEpoch = _systemClockContextEpoch.ToUniversalTime();
}
_systemClockTimePoint = (long)(_systemClockContextEpoch - Epoch).TotalSeconds;
_clockCore = clockCore;
_writePermission = writePermission;
}
[Command(0)]
// GetCurrentTime() -> nn::time::PosixTime
public ResultCode GetCurrentTime(ServiceCtx context)
{
DateTime currentTime = DateTime.Now;
SteadyClockCore steadyClockCore = _clockCore.GetSteadyClockCore();
SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(context.Thread);
if (_clockType == SystemClockType.User ||
_clockType == SystemClockType.Network)
ResultCode result = _clockCore.GetSystemClockContext(context.Thread, out SystemClockContext clockContext);
if (result == ResultCode.Success)
{
currentTime = currentTime.ToUniversalTime();
result = ResultCode.TimeMismatch;
if (currentTimePoint.ClockSourceId == clockContext.SteadyTimePoint.ClockSourceId)
{
ulong posixTime = clockContext.Offset + currentTimePoint.TimePoint;
context.ResponseData.Write(posixTime);
result = 0;
}
}
context.ResponseData.Write((long)((currentTime - Epoch).TotalSeconds) + _timeOffset);
return ResultCode.Success;
return result;
}
[Command(1)]
// SetCurrentTime(nn::time::PosixTime)
public ResultCode SetCurrentTime(ServiceCtx context)
{
DateTime currentTime = DateTime.Now;
if (_clockType == SystemClockType.User ||
_clockType == SystemClockType.Network)
if (!_writePermission)
{
currentTime = currentTime.ToUniversalTime();
return ResultCode.PermissionDenied;
}
_timeOffset = (context.RequestData.ReadInt64() - (long)(currentTime - Epoch).TotalSeconds);
ulong posixTime = context.RequestData.ReadUInt64();
SteadyClockCore steadyClockCore = _clockCore.GetSteadyClockCore();
SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(context.Thread);
return ResultCode.Success;
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)
{
context.ResponseData.Write((long)(_systemClockContextEpoch - Epoch).TotalSeconds);
ResultCode result = _clockCore.GetSystemClockContext(context.Thread, out SystemClockContext clockContext);
// The point in time, TODO: is there a link between epoch and this?
context.ResponseData.Write(_systemClockTimePoint);
// This seems to be some kind of identifier?
for (int i = 0; i < 0x10; i++)
if (result == ResultCode.Success)
{
context.ResponseData.Write(_systemClockContextEnding[i]);
context.ResponseData.WriteStruct(clockContext);
}
return ResultCode.Success;
return result;
}
[Command(3)]
// SetSystemClockContext(nn::time::SystemClockContext)
public ResultCode SetSystemClockContext(ServiceCtx context)
{
long newSystemClockEpoch = context.RequestData.ReadInt64();
long newSystemClockTimePoint = context.RequestData.ReadInt64();
if (!_writePermission)
{
return ResultCode.PermissionDenied;
}
_systemClockContextEpoch = Epoch.Add(TimeSpan.FromSeconds(newSystemClockEpoch));
_systemClockTimePoint = newSystemClockTimePoint;
_systemClockContextEnding = context.RequestData.ReadBytes(0x10);
SystemClockContext clockContext = context.RequestData.ReadStruct<SystemClockContext>();
return ResultCode.Success;
ResultCode result = _clockCore.SetSystemClockContext(clockContext);
if (result == ResultCode.Success)
{
result = _clockCore.Flush(clockContext);
}
return result;
}
}
}

5
Ryujinx.HLE/HOS/Services/Time/ResultCode.cs
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@ -7,11 +7,14 @@
Success = 0,
PermissionDenied = (1 << ErrorCodeShift) | ModuleId,
TimeMismatch = (102 << ErrorCodeShift) | ModuleId,
TimeNotFound = (200 << ErrorCodeShift) | ModuleId,
Overflow = (201 << ErrorCodeShift) | ModuleId,
LocationNameTooLong = (801 << ErrorCodeShift) | ModuleId,
OutOfRange = (902 << ErrorCodeShift) | ModuleId,
TimeZoneConversionFailed = (903 << ErrorCodeShift) | ModuleId,
TimeZoneNotFound = (989 << ErrorCodeShift) | ModuleId
TimeZoneNotFound = (989 << ErrorCodeShift) | ModuleId,
NotImplemented = (990 << ErrorCodeShift) | ModuleId,
}
}

10
Ryujinx.HLE/HOS/Services/Time/SystemClockType.cs
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@ -1,10 +0,0 @@
namespace Ryujinx.HLE.HOS.Services.Time
{
enum SystemClockType
{
User,
Network,
Local,
EphemeralNetwork
}
}

17
Ryujinx.HLE/HOS/Services/Time/TimePermissions.cs Normal file
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@ -0,0 +1,17 @@
using System;
namespace Ryujinx.HLE.HOS.Services.Time
{
[Flags]
enum TimePermissions
{
LocalSystemClockWritableMask = 0x1,
UserSystemClockWritableMask = 0x2,
NetworkSystemClockWritableMask = 0x4,
UnknownPermissionMask = 0x8,
User = 0,
Applet = LocalSystemClockWritableMask | UserSystemClockWritableMask | UnknownPermissionMask,
System = NetworkSystemClockWritableMask
}
}