mirror of
https://github.com/GreemDev/Ryujinx
synced 2024-12-27 06:16:37 +01:00
117e32a6ff
* Add a "Pause Emulation" option and hotkey Closes Ryujinx#1604 * Refactoring how pause is handled * Applied suggested changes from review * Applied suggested fixes * Pass correct suspend type to threads for suspend/resume * Fix NRE after stoping emulation * Removing SimulateWakeUpMessage call after resuming emulation * Skip suspending non game process * Pause the tickCounter in the ExecutionContext * Refactoring tickCounter pause/resume as suggested * Fix Config migration to add pause hotkey * Fixed pausing only application threads * Fix exiting emulator while paused * Avoid pause/resume while already paused/resumed * Cleanup unused code * Avoid restarting audio if stopping emulation while in pause. * Added suggested changes * Fix ConfigurationState
1119 lines
No EOL
33 KiB
C#
1119 lines
No EOL
33 KiB
C#
using Ryujinx.Common.Logging;
|
|
using Ryujinx.Cpu;
|
|
using Ryujinx.HLE.HOS.Kernel.Common;
|
|
using Ryujinx.HLE.HOS.Kernel.Process;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Numerics;
|
|
using System.Threading;
|
|
|
|
namespace Ryujinx.HLE.HOS.Kernel.Threading
|
|
{
|
|
class KThread : KSynchronizationObject, IKFutureSchedulerObject
|
|
{
|
|
public const int MaxWaitSyncObjects = 64;
|
|
|
|
private ManualResetEvent _schedulerWaitEvent;
|
|
|
|
public ManualResetEvent SchedulerWaitEvent => _schedulerWaitEvent;
|
|
|
|
public Thread HostThread { get; private set; }
|
|
|
|
public ARMeilleure.State.ExecutionContext Context { get; private set; }
|
|
|
|
public KThreadContext ThreadContext { get; private set; }
|
|
|
|
public int DynamicPriority { get; set; }
|
|
public long AffinityMask { get; set; }
|
|
|
|
public long ThreadUid { get; private set; }
|
|
|
|
private long _totalTimeRunning;
|
|
|
|
public long TotalTimeRunning => _totalTimeRunning;
|
|
|
|
public KSynchronizationObject SignaledObj { get; set; }
|
|
|
|
public ulong CondVarAddress { get; set; }
|
|
|
|
private ulong _entrypoint;
|
|
private ThreadStart _customThreadStart;
|
|
private bool _forcedUnschedulable;
|
|
|
|
public bool IsSchedulable => _customThreadStart == null && !_forcedUnschedulable;
|
|
|
|
public ulong MutexAddress { get; set; }
|
|
|
|
public KProcess Owner { get; private set; }
|
|
|
|
private ulong _tlsAddress;
|
|
|
|
public ulong TlsAddress => _tlsAddress;
|
|
|
|
public KSynchronizationObject[] WaitSyncObjects { get; }
|
|
public int[] WaitSyncHandles { get; }
|
|
|
|
public long LastScheduledTime { get; set; }
|
|
|
|
public LinkedListNode<KThread>[] SiblingsPerCore { get; private set; }
|
|
|
|
public LinkedList<KThread> Withholder { get; set; }
|
|
public LinkedListNode<KThread> WithholderNode { get; set; }
|
|
|
|
public LinkedListNode<KThread> ProcessListNode { get; set; }
|
|
|
|
private LinkedList<KThread> _mutexWaiters;
|
|
private LinkedListNode<KThread> _mutexWaiterNode;
|
|
|
|
public KThread MutexOwner { get; private set; }
|
|
|
|
public int ThreadHandleForUserMutex { get; set; }
|
|
|
|
private ThreadSchedState _forcePauseFlags;
|
|
|
|
public KernelResult ObjSyncResult { get; set; }
|
|
|
|
public int BasePriority { get; set; }
|
|
public int PreferredCore { get; set; }
|
|
|
|
public int CurrentCore { get; set; }
|
|
public int ActiveCore { get; set; }
|
|
|
|
private long _affinityMaskOverride;
|
|
private int _preferredCoreOverride;
|
|
#pragma warning disable CS0649
|
|
private int _affinityOverrideCount;
|
|
#pragma warning restore CS0649
|
|
|
|
public ThreadSchedState SchedFlags { get; private set; }
|
|
|
|
private int _shallBeTerminated;
|
|
|
|
public bool ShallBeTerminated
|
|
{
|
|
get => _shallBeTerminated != 0;
|
|
set => _shallBeTerminated = value ? 1 : 0;
|
|
}
|
|
|
|
public bool TerminationRequested => ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending;
|
|
|
|
public bool SyncCancelled { get; set; }
|
|
public bool WaitingSync { get; set; }
|
|
|
|
private int _hasExited;
|
|
private bool _hasBeenInitialized;
|
|
private bool _hasBeenReleased;
|
|
|
|
public bool WaitingInArbitration { get; set; }
|
|
|
|
public long LastPc { get; set; }
|
|
|
|
public KThread(KernelContext context) : base(context)
|
|
{
|
|
WaitSyncObjects = new KSynchronizationObject[MaxWaitSyncObjects];
|
|
WaitSyncHandles = new int[MaxWaitSyncObjects];
|
|
|
|
SiblingsPerCore = new LinkedListNode<KThread>[KScheduler.CpuCoresCount];
|
|
|
|
_mutexWaiters = new LinkedList<KThread>();
|
|
}
|
|
|
|
public KernelResult Initialize(
|
|
ulong entrypoint,
|
|
ulong argsPtr,
|
|
ulong stackTop,
|
|
int priority,
|
|
int cpuCore,
|
|
KProcess owner,
|
|
ThreadType type,
|
|
ThreadStart customThreadStart = null)
|
|
{
|
|
if ((uint)type > 3)
|
|
{
|
|
throw new ArgumentException($"Invalid thread type \"{type}\".");
|
|
}
|
|
|
|
ThreadContext = new KThreadContext();
|
|
|
|
PreferredCore = cpuCore;
|
|
AffinityMask |= 1L << cpuCore;
|
|
|
|
SchedFlags = type == ThreadType.Dummy
|
|
? ThreadSchedState.Running
|
|
: ThreadSchedState.None;
|
|
|
|
ActiveCore = cpuCore;
|
|
ObjSyncResult = KernelResult.ThreadNotStarted;
|
|
DynamicPriority = priority;
|
|
BasePriority = priority;
|
|
CurrentCore = cpuCore;
|
|
|
|
_entrypoint = entrypoint;
|
|
_customThreadStart = customThreadStart;
|
|
|
|
if (type == ThreadType.User)
|
|
{
|
|
if (owner.AllocateThreadLocalStorage(out _tlsAddress) != KernelResult.Success)
|
|
{
|
|
return KernelResult.OutOfMemory;
|
|
}
|
|
|
|
MemoryHelper.FillWithZeros(owner.CpuMemory, _tlsAddress, KTlsPageInfo.TlsEntrySize);
|
|
}
|
|
|
|
bool is64Bits;
|
|
|
|
if (owner != null)
|
|
{
|
|
Owner = owner;
|
|
|
|
owner.IncrementReferenceCount();
|
|
owner.IncrementThreadCount();
|
|
|
|
is64Bits = owner.Flags.HasFlag(ProcessCreationFlags.Is64Bit);
|
|
}
|
|
else
|
|
{
|
|
is64Bits = true;
|
|
}
|
|
|
|
HostThread = new Thread(ThreadStart);
|
|
|
|
Context = CpuContext.CreateExecutionContext();
|
|
|
|
Context.IsAarch32 = !is64Bits;
|
|
|
|
Context.SetX(0, argsPtr);
|
|
|
|
if (is64Bits)
|
|
{
|
|
Context.SetX(31, stackTop);
|
|
}
|
|
else
|
|
{
|
|
Context.SetX(13, (uint)stackTop);
|
|
}
|
|
|
|
Context.CntfrqEl0 = 19200000;
|
|
Context.Tpidr = (long)_tlsAddress;
|
|
|
|
ThreadUid = KernelContext.NewThreadUid();
|
|
|
|
HostThread.Name = customThreadStart != null ? $"HLE.OsThread.{ThreadUid}" : $"HLE.GuestThread.{ThreadUid}";
|
|
|
|
_hasBeenInitialized = true;
|
|
|
|
if (owner != null)
|
|
{
|
|
owner.SubscribeThreadEventHandlers(Context);
|
|
owner.AddThread(this);
|
|
|
|
if (owner.IsPaused)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (TerminationRequested)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
_forcePauseFlags |= ThreadSchedState.ProcessPauseFlag;
|
|
|
|
CombineForcePauseFlags();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
}
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult Start()
|
|
{
|
|
if (!KernelContext.KernelInitialized)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!TerminationRequested)
|
|
{
|
|
_forcePauseFlags |= ThreadSchedState.KernelInitPauseFlag;
|
|
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
KernelResult result = KernelResult.ThreadTerminating;
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!ShallBeTerminated)
|
|
{
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
while (SchedFlags != ThreadSchedState.TerminationPending && (currentThread == null || !currentThread.TerminationRequested))
|
|
{
|
|
if ((SchedFlags & ThreadSchedState.LowMask) != ThreadSchedState.None)
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
break;
|
|
}
|
|
|
|
if (currentThread == null || currentThread._forcePauseFlags == ThreadSchedState.None)
|
|
{
|
|
if (Owner != null && _forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
StartHostThread();
|
|
|
|
result = KernelResult.Success;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
currentThread.CombineForcePauseFlags();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (currentThread.ShallBeTerminated)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result;
|
|
}
|
|
|
|
public ThreadSchedState PrepareForTermination()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState result;
|
|
|
|
if (Interlocked.CompareExchange(ref _shallBeTerminated, 1, 0) == 0)
|
|
{
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.None)
|
|
{
|
|
SchedFlags = ThreadSchedState.TerminationPending;
|
|
}
|
|
else
|
|
{
|
|
if (_forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
_forcePauseFlags &= ~ThreadSchedState.ThreadPauseFlag;
|
|
|
|
ThreadSchedState oldSchedFlags = SchedFlags;
|
|
|
|
SchedFlags &= ThreadSchedState.LowMask;
|
|
|
|
AdjustScheduling(oldSchedFlags);
|
|
}
|
|
|
|
if (BasePriority >= 0x10)
|
|
{
|
|
SetPriority(0xF);
|
|
}
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Running)
|
|
{
|
|
// TODO: GIC distributor stuffs (sgir changes ect)
|
|
Context.RequestInterrupt();
|
|
}
|
|
|
|
SignaledObj = null;
|
|
ObjSyncResult = KernelResult.ThreadTerminating;
|
|
|
|
ReleaseAndResume();
|
|
}
|
|
}
|
|
|
|
result = SchedFlags;
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result & ThreadSchedState.LowMask;
|
|
}
|
|
|
|
public void Terminate()
|
|
{
|
|
ThreadSchedState state = PrepareForTermination();
|
|
|
|
if (state != ThreadSchedState.TerminationPending)
|
|
{
|
|
KernelContext.Synchronization.WaitFor(new KSynchronizationObject[] { this }, -1, out _);
|
|
}
|
|
}
|
|
|
|
public void HandlePostSyscall()
|
|
{
|
|
ThreadSchedState state;
|
|
|
|
do
|
|
{
|
|
if (TerminationRequested)
|
|
{
|
|
Exit();
|
|
|
|
// As the death of the thread is handled by the CPU emulator, we differ from the official kernel and return here.
|
|
break;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (TerminationRequested)
|
|
{
|
|
state = ThreadSchedState.TerminationPending;
|
|
}
|
|
else
|
|
{
|
|
if (_forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
state = ThreadSchedState.Running;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
} while (state == ThreadSchedState.TerminationPending);
|
|
}
|
|
|
|
public void Exit()
|
|
{
|
|
// TODO: Debug event.
|
|
|
|
if (Owner != null)
|
|
{
|
|
Owner.ResourceLimit?.Release(LimitableResource.Thread, 0, 1);
|
|
|
|
_hasBeenReleased = true;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
_forcePauseFlags &= ~ThreadSchedState.ForcePauseMask;
|
|
|
|
bool decRef = ExitImpl();
|
|
|
|
Context.StopRunning();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
if (decRef)
|
|
{
|
|
DecrementReferenceCount();
|
|
}
|
|
}
|
|
|
|
private bool ExitImpl()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
SetNewSchedFlags(ThreadSchedState.TerminationPending);
|
|
|
|
bool decRef = Interlocked.Exchange(ref _hasExited, 1) == 0;
|
|
|
|
Signal();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return decRef;
|
|
}
|
|
|
|
public KernelResult Sleep(long timeout)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.ThreadTerminating;
|
|
}
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Paused);
|
|
|
|
if (timeout > 0)
|
|
{
|
|
KernelContext.TimeManager.ScheduleFutureInvocation(this, timeout);
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
if (timeout > 0)
|
|
{
|
|
KernelContext.TimeManager.UnscheduleFutureInvocation(this);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
public void SetPriority(int priority)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
BasePriority = priority;
|
|
|
|
UpdatePriorityInheritance();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void Suspend(ThreadSchedState type)
|
|
{
|
|
_forcePauseFlags |= type;
|
|
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
public void Resume(ThreadSchedState type)
|
|
{
|
|
ThreadSchedState oldForcePauseFlags = _forcePauseFlags;
|
|
|
|
_forcePauseFlags &= ~type;
|
|
|
|
if ((oldForcePauseFlags & ~type) == ThreadSchedState.None)
|
|
{
|
|
ThreadSchedState oldSchedFlags = SchedFlags;
|
|
|
|
SchedFlags &= ThreadSchedState.LowMask;
|
|
|
|
AdjustScheduling(oldSchedFlags);
|
|
}
|
|
}
|
|
|
|
public KernelResult SetActivity(bool pause)
|
|
{
|
|
KernelResult result = KernelResult.Success;
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState lowNibble = SchedFlags & ThreadSchedState.LowMask;
|
|
|
|
if (lowNibble != ThreadSchedState.Paused && lowNibble != ThreadSchedState.Running)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.InvalidState;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!ShallBeTerminated && SchedFlags != ThreadSchedState.TerminationPending)
|
|
{
|
|
if (pause)
|
|
{
|
|
// Pause, the force pause flag should be clear (thread is NOT paused).
|
|
if ((_forcePauseFlags & ThreadSchedState.ThreadPauseFlag) == 0)
|
|
{
|
|
Suspend(ThreadSchedState.ThreadPauseFlag);
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Unpause, the force pause flag should be set (thread is paused).
|
|
if ((_forcePauseFlags & ThreadSchedState.ThreadPauseFlag) != 0)
|
|
{
|
|
Resume(ThreadSchedState.ThreadPauseFlag);
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result;
|
|
}
|
|
|
|
public void CancelSynchronization()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) != ThreadSchedState.Paused || !WaitingSync)
|
|
{
|
|
SyncCancelled = true;
|
|
}
|
|
else if (Withholder != null)
|
|
{
|
|
Withholder.Remove(WithholderNode);
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
Withholder = null;
|
|
|
|
SyncCancelled = true;
|
|
}
|
|
else
|
|
{
|
|
SignaledObj = null;
|
|
ObjSyncResult = KernelResult.Cancelled;
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
SyncCancelled = false;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public KernelResult SetCoreAndAffinityMask(int newCore, long newAffinityMask)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
bool useOverride = _affinityOverrideCount != 0;
|
|
|
|
// The value -3 is "do not change the preferred core".
|
|
if (newCore == -3)
|
|
{
|
|
newCore = useOverride ? _preferredCoreOverride : PreferredCore;
|
|
|
|
if ((newAffinityMask & (1 << newCore)) == 0)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
}
|
|
|
|
if (useOverride)
|
|
{
|
|
_preferredCoreOverride = newCore;
|
|
_affinityMaskOverride = newAffinityMask;
|
|
}
|
|
else
|
|
{
|
|
long oldAffinityMask = AffinityMask;
|
|
|
|
PreferredCore = newCore;
|
|
AffinityMask = newAffinityMask;
|
|
|
|
if (oldAffinityMask != newAffinityMask)
|
|
{
|
|
int oldCore = ActiveCore;
|
|
|
|
if (oldCore >= 0 && ((AffinityMask >> oldCore) & 1) == 0)
|
|
{
|
|
if (PreferredCore < 0)
|
|
{
|
|
ActiveCore = sizeof(ulong) * 8 - 1 - BitOperations.LeadingZeroCount((ulong)AffinityMask);
|
|
}
|
|
else
|
|
{
|
|
ActiveCore = PreferredCore;
|
|
}
|
|
}
|
|
|
|
AdjustSchedulingForNewAffinity(oldAffinityMask, oldCore);
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
private void CombineForcePauseFlags()
|
|
{
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
ThreadSchedState lowNibble = SchedFlags & ThreadSchedState.LowMask;
|
|
|
|
SchedFlags = lowNibble | _forcePauseFlags;
|
|
|
|
AdjustScheduling(oldFlags);
|
|
}
|
|
|
|
private void SetNewSchedFlags(ThreadSchedState newFlags)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
|
|
SchedFlags = (oldFlags & ThreadSchedState.HighMask) | newFlags;
|
|
|
|
if ((oldFlags & ThreadSchedState.LowMask) != newFlags)
|
|
{
|
|
AdjustScheduling(oldFlags);
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void ReleaseAndResume()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Paused)
|
|
{
|
|
if (Withholder != null)
|
|
{
|
|
Withholder.Remove(WithholderNode);
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
Withholder = null;
|
|
}
|
|
else
|
|
{
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void Reschedule(ThreadSchedState newFlags)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
|
|
SchedFlags = (oldFlags & ThreadSchedState.HighMask) |
|
|
(newFlags & ThreadSchedState.LowMask);
|
|
|
|
AdjustScheduling(oldFlags);
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void AddMutexWaiter(KThread requester)
|
|
{
|
|
AddToMutexWaitersList(requester);
|
|
|
|
requester.MutexOwner = this;
|
|
|
|
UpdatePriorityInheritance();
|
|
}
|
|
|
|
public void RemoveMutexWaiter(KThread thread)
|
|
{
|
|
if (thread._mutexWaiterNode?.List != null)
|
|
{
|
|
_mutexWaiters.Remove(thread._mutexWaiterNode);
|
|
}
|
|
|
|
thread.MutexOwner = null;
|
|
|
|
UpdatePriorityInheritance();
|
|
}
|
|
|
|
public KThread RelinquishMutex(ulong mutexAddress, out int count)
|
|
{
|
|
count = 0;
|
|
|
|
if (_mutexWaiters.First == null)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
KThread newMutexOwner = null;
|
|
|
|
LinkedListNode<KThread> currentNode = _mutexWaiters.First;
|
|
|
|
do
|
|
{
|
|
// Skip all threads that are not waiting for this mutex.
|
|
while (currentNode != null && currentNode.Value.MutexAddress != mutexAddress)
|
|
{
|
|
currentNode = currentNode.Next;
|
|
}
|
|
|
|
if (currentNode == null)
|
|
{
|
|
break;
|
|
}
|
|
|
|
LinkedListNode<KThread> nextNode = currentNode.Next;
|
|
|
|
_mutexWaiters.Remove(currentNode);
|
|
|
|
currentNode.Value.MutexOwner = newMutexOwner;
|
|
|
|
if (newMutexOwner != null)
|
|
{
|
|
// New owner was already selected, re-insert on new owner list.
|
|
newMutexOwner.AddToMutexWaitersList(currentNode.Value);
|
|
}
|
|
else
|
|
{
|
|
// New owner not selected yet, use current thread.
|
|
newMutexOwner = currentNode.Value;
|
|
}
|
|
|
|
count++;
|
|
|
|
currentNode = nextNode;
|
|
}
|
|
while (currentNode != null);
|
|
|
|
if (newMutexOwner != null)
|
|
{
|
|
UpdatePriorityInheritance();
|
|
|
|
newMutexOwner.UpdatePriorityInheritance();
|
|
}
|
|
|
|
return newMutexOwner;
|
|
}
|
|
|
|
private void UpdatePriorityInheritance()
|
|
{
|
|
// If any of the threads waiting for the mutex has
|
|
// higher priority than the current thread, then
|
|
// the current thread inherits that priority.
|
|
int highestPriority = BasePriority;
|
|
|
|
if (_mutexWaiters.First != null)
|
|
{
|
|
int waitingDynamicPriority = _mutexWaiters.First.Value.DynamicPriority;
|
|
|
|
if (waitingDynamicPriority < highestPriority)
|
|
{
|
|
highestPriority = waitingDynamicPriority;
|
|
}
|
|
}
|
|
|
|
if (highestPriority != DynamicPriority)
|
|
{
|
|
int oldPriority = DynamicPriority;
|
|
|
|
DynamicPriority = highestPriority;
|
|
|
|
AdjustSchedulingForNewPriority(oldPriority);
|
|
|
|
if (MutexOwner != null)
|
|
{
|
|
// Remove and re-insert to ensure proper sorting based on new priority.
|
|
MutexOwner._mutexWaiters.Remove(_mutexWaiterNode);
|
|
|
|
MutexOwner.AddToMutexWaitersList(this);
|
|
|
|
MutexOwner.UpdatePriorityInheritance();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void AddToMutexWaitersList(KThread thread)
|
|
{
|
|
LinkedListNode<KThread> nextPrio = _mutexWaiters.First;
|
|
|
|
int currentPriority = thread.DynamicPriority;
|
|
|
|
while (nextPrio != null && nextPrio.Value.DynamicPriority <= currentPriority)
|
|
{
|
|
nextPrio = nextPrio.Next;
|
|
}
|
|
|
|
if (nextPrio != null)
|
|
{
|
|
thread._mutexWaiterNode = _mutexWaiters.AddBefore(nextPrio, thread);
|
|
}
|
|
else
|
|
{
|
|
thread._mutexWaiterNode = _mutexWaiters.AddLast(thread);
|
|
}
|
|
}
|
|
|
|
private void AdjustScheduling(ThreadSchedState oldFlags)
|
|
{
|
|
if (oldFlags == SchedFlags)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (!IsSchedulable)
|
|
{
|
|
if (!_forcedUnschedulable)
|
|
{
|
|
// Ensure our thread is running and we have an event.
|
|
StartHostThread();
|
|
|
|
// If the thread is not schedulable, we want to just run or pause
|
|
// it directly as we don't care about priority or the core it is
|
|
// running on in this case.
|
|
if (SchedFlags == ThreadSchedState.Running)
|
|
{
|
|
_schedulerWaitEvent.Set();
|
|
}
|
|
else
|
|
{
|
|
_schedulerWaitEvent.Reset();
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (oldFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was running, now it's stopped.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unsuggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
else if (SchedFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was stopped, now it's running.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewPriority(int oldPriority)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running || !IsSchedulable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(oldPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unsuggest(oldPriority, core, this);
|
|
}
|
|
}
|
|
|
|
// Add thread to the new priority queues.
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
if (ActiveCore >= 0)
|
|
{
|
|
if (currentThread == this)
|
|
{
|
|
KernelContext.PriorityQueue.SchedulePrepend(DynamicPriority, ActiveCore, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
|
|
KernelContext.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewAffinity(long oldAffinityMask, int oldCore)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running || DynamicPriority >= KScheduler.PrioritiesCount || !IsSchedulable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (((oldAffinityMask >> core) & 1) != 0)
|
|
{
|
|
if (core == oldCore)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.Unsuggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add thread to the new priority queues.
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
if (core == ActiveCore)
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
public void SetEntryArguments(long argsPtr, int threadHandle)
|
|
{
|
|
Context.SetX(0, (ulong)argsPtr);
|
|
Context.SetX(1, (ulong)threadHandle);
|
|
}
|
|
|
|
public void TimeUp()
|
|
{
|
|
ReleaseAndResume();
|
|
}
|
|
|
|
public string GetGuestStackTrace()
|
|
{
|
|
return Owner.Debugger.GetGuestStackTrace(this);
|
|
}
|
|
|
|
public string GetGuestRegisterPrintout()
|
|
{
|
|
return Owner.Debugger.GetCpuRegisterPrintout(this);
|
|
}
|
|
|
|
public void PrintGuestStackTrace()
|
|
{
|
|
Logger.Info?.Print(LogClass.Cpu, $"Guest stack trace:\n{GetGuestStackTrace()}\n");
|
|
}
|
|
|
|
public void PrintGuestRegisterPrintout()
|
|
{
|
|
Logger.Info?.Print(LogClass.Cpu, $"Guest CPU registers:\n{GetGuestRegisterPrintout()}\n");
|
|
}
|
|
|
|
public void AddCpuTime(long ticks)
|
|
{
|
|
Interlocked.Add(ref _totalTimeRunning, ticks);
|
|
}
|
|
|
|
public void StartHostThread()
|
|
{
|
|
if (_schedulerWaitEvent == null)
|
|
{
|
|
var schedulerWaitEvent = new ManualResetEvent(false);
|
|
|
|
if (Interlocked.Exchange(ref _schedulerWaitEvent, schedulerWaitEvent) == null)
|
|
{
|
|
HostThread.Start();
|
|
}
|
|
else
|
|
{
|
|
schedulerWaitEvent.Dispose();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void ThreadStart()
|
|
{
|
|
_schedulerWaitEvent.WaitOne();
|
|
KernelStatic.SetKernelContext(KernelContext, this);
|
|
|
|
if (_customThreadStart != null)
|
|
{
|
|
_customThreadStart();
|
|
}
|
|
else
|
|
{
|
|
Owner.Context.Execute(Context, _entrypoint);
|
|
}
|
|
|
|
Context.Dispose();
|
|
_schedulerWaitEvent.Dispose();
|
|
}
|
|
|
|
public void MakeUnschedulable()
|
|
{
|
|
_forcedUnschedulable = true;
|
|
}
|
|
|
|
public override bool IsSignaled()
|
|
{
|
|
return _hasExited != 0;
|
|
}
|
|
|
|
protected override void Destroy()
|
|
{
|
|
if (_hasBeenInitialized)
|
|
{
|
|
FreeResources();
|
|
|
|
bool released = Owner != null || _hasBeenReleased;
|
|
|
|
if (Owner != null)
|
|
{
|
|
Owner.ResourceLimit?.Release(LimitableResource.Thread, 1, released ? 0 : 1);
|
|
|
|
Owner.DecrementReferenceCount();
|
|
}
|
|
else
|
|
{
|
|
KernelContext.ResourceLimit.Release(LimitableResource.Thread, 1, released ? 0 : 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
private void FreeResources()
|
|
{
|
|
Owner?.RemoveThread(this);
|
|
|
|
if (_tlsAddress != 0 && Owner.FreeThreadLocalStorage(_tlsAddress) != KernelResult.Success)
|
|
{
|
|
throw new InvalidOperationException("Unexpected failure freeing thread local storage.");
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
// Wake up all threads that may be waiting for a mutex being held by this thread.
|
|
foreach (KThread thread in _mutexWaiters)
|
|
{
|
|
thread.MutexOwner = null;
|
|
thread._preferredCoreOverride = 0;
|
|
thread.ObjSyncResult = KernelResult.InvalidState;
|
|
|
|
thread.ReleaseAndResume();
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
Owner?.DecrementThreadCountAndTerminateIfZero();
|
|
}
|
|
}
|
|
} |