public void CancelSynchronization()
{
System.CriticalSectionLock.Lock();
if ((SchedFlags & ThreadSchedState.LowNibbleMask) != ThreadSchedState.Paused || !WaitingSync)
{
SyncCancelled = true;
}
else if (WithholderNode != null)
{
System.Withholders.Remove(WithholderNode);
SetNewSchedFlags(ThreadSchedState.Running);
WithholderNode = null;
SyncCancelled = true;
}
else
{
SignaledObj = null;
ObjSyncResult = (int)MakeError(ErrorModule.Kernel, KernelErr.Cancelled);
SetNewSchedFlags(ThreadSchedState.Running);
SyncCancelled = false;
}
System.CriticalSectionLock.Unlock();
}
public void SignalObject(KSynchronizationObject SyncObj)
{
System.CriticalSection.Enter();
if (SyncObj.IsSignaled())
{
LinkedListNode <KThread> Node = SyncObj.WaitingThreads.First;
while (Node != null)
{
KThread Thread = Node.Value;
if ((Thread.SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Paused)
{
Thread.SignaledObj = SyncObj;
Thread.ObjSyncResult = 0;
Thread.Reschedule(ThreadSchedState.Running);
}
Node = Node.Next;
}
}
System.CriticalSection.Leave();
}
public void SignalObject(KSynchronizationObject syncObj)
{
_system.CriticalSection.Enter();
if (syncObj.IsSignaled())
{
LinkedListNode <KThread> node = syncObj.WaitingThreads.First;
while (node != null)
{
KThread thread = node.Value;
if ((thread.SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Paused)
{
thread.SignaledObj = syncObj;
thread.ObjSyncResult = 0;
thread.Reschedule(ThreadSchedState.Running);
}
node = node.Next;
}
}
_system.CriticalSection.Leave();
}
private void SvcWaitSynchronization(CpuThreadState threadState)
{
long handlesPtr = (long)threadState.X1;
int handlesCount = (int)threadState.X2;
long timeout = (long)threadState.X3;
Logger.PrintDebug(LogClass.KernelSvc,
"HandlesPtr = 0x" + handlesPtr.ToString("x16") + ", " +
"HandlesCount = 0x" + handlesCount.ToString("x8") + ", " +
"Timeout = 0x" + timeout.ToString("x16"));
if ((uint)handlesCount > 0x40)
{
threadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.CountOutOfRange);
return;
}
List <KSynchronizationObject> syncObjs = new List <KSynchronizationObject>();
for (int index = 0; index < handlesCount; index++)
{
int handle = _memory.ReadInt32(handlesPtr + index * 4);
Logger.PrintDebug(LogClass.KernelSvc, $"Sync handle 0x{handle:x8}");
KSynchronizationObject syncObj = _process.HandleTable.GetObject <KSynchronizationObject>(handle);
if (syncObj == null)
{
break;
}
syncObjs.Add(syncObj);
}
int hndIndex = (int)threadState.X1;
ulong high = threadState.X1 & (0xffffffffUL << 32);
long result = _system.Synchronization.WaitFor(syncObjs.ToArray(), timeout, ref hndIndex);
if (result != 0)
{
if (result == MakeError(ErrorModule.Kernel, KernelErr.Timeout) ||
result == MakeError(ErrorModule.Kernel, KernelErr.Cancelled))
{
Logger.PrintDebug(LogClass.KernelSvc, $"Operation failed with error 0x{result:x}!");
}
else
{
Logger.PrintWarning(LogClass.KernelSvc, $"Operation failed with error 0x{result:x}!");
}
}
threadState.X0 = (ulong)result;
threadState.X1 = (uint)hndIndex | high;
}
private void SvcWaitSynchronization(CpuThreadState ThreadState)
{
long HandlesPtr = (long)ThreadState.X1;
int HandlesCount = (int)ThreadState.X2;
long Timeout = (long)ThreadState.X3;
Logger.PrintDebug(LogClass.KernelSvc,
"HandlesPtr = 0x" + HandlesPtr.ToString("x16") + ", " +
"HandlesCount = 0x" + HandlesCount.ToString("x8") + ", " +
"Timeout = 0x" + Timeout.ToString("x16"));
if ((uint)HandlesCount > 0x40)
{
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.CountOutOfRange);
return;
}
List <KSynchronizationObject> SyncObjs = new List <KSynchronizationObject>();
for (int Index = 0; Index < HandlesCount; Index++)
{
int Handle = Memory.ReadInt32(HandlesPtr + Index * 4);
Logger.PrintDebug(LogClass.KernelSvc, $"Sync handle 0x{Handle:x8}");
KSynchronizationObject SyncObj = Process.HandleTable.GetObject <KSynchronizationObject>(Handle);
if (SyncObj == null)
{
break;
}
SyncObjs.Add(SyncObj);
}
int HndIndex = (int)ThreadState.X1;
ulong High = ThreadState.X1 & (0xffffffffUL << 32);
long Result = System.Synchronization.WaitFor(SyncObjs.ToArray(), Timeout, ref HndIndex);
if (Result != 0)
{
if (Result == MakeError(ErrorModule.Kernel, KernelErr.Timeout) ||
Result == MakeError(ErrorModule.Kernel, KernelErr.Cancelled))
{
Logger.PrintDebug(LogClass.KernelSvc, $"Operation failed with error 0x{Result:x}!");
}
else
{
Logger.PrintWarning(LogClass.KernelSvc, $"Operation failed with error 0x{Result:x}!");
}
}
ThreadState.X0 = (ulong)Result;
ThreadState.X1 = (uint)HndIndex | High;
}
private void SvcWaitSynchronization(AThreadState ThreadState)
{
long HandlesPtr = (long)ThreadState.X1;
int HandlesCount = (int)ThreadState.X2;
long Timeout = (long)ThreadState.X3;
Device.Log.PrintDebug(LogClass.KernelSvc,
"HandlesPtr = 0x" + HandlesPtr.ToString("x16") + ", " +
"HandlesCount = 0x" + HandlesCount.ToString("x8") + ", " +
"Timeout = 0x" + Timeout.ToString("x16"));
if ((uint)HandlesCount > 0x40)
{
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.CountOutOfRange);
return;
}
KSynchronizationObject[] SyncObjs = new KSynchronizationObject[HandlesCount];
for (int Index = 0; Index < HandlesCount; Index++)
{
int Handle = Memory.ReadInt32(HandlesPtr + Index * 4);
KSynchronizationObject SyncObj = Process.HandleTable.GetData <KSynchronizationObject>(Handle);
SyncObjs[Index] = SyncObj;
}
int HndIndex = (int)ThreadState.X1;
ulong High = ThreadState.X1 & (0xffffffffUL << 32);
long Result = System.Synchronization.WaitFor(SyncObjs, Timeout, ref HndIndex);
if (Result != 0)
{
if (Result == MakeError(ErrorModule.Kernel, KernelErr.Timeout) ||
Result == MakeError(ErrorModule.Kernel, KernelErr.Cancelled))
{
Device.Log.PrintDebug(LogClass.KernelSvc, $"Operation failed with error 0x{Result:x}!");
}
else
{
Device.Log.PrintWarning(LogClass.KernelSvc, $"Operation failed with error 0x{Result:x}!");
}
}
ThreadState.X0 = (ulong)Result;
ThreadState.X1 = (uint)HndIndex | High;
}
private void SvcWaitSynchronization(AThreadState ThreadState)
{
long HandlesPtr = (long)ThreadState.X1;
int HandlesCount = (int)ThreadState.X2;
ulong Timeout = ThreadState.X3;
Device.Log.PrintDebug(LogClass.KernelSvc,
"HandlesPtr = 0x" + HandlesPtr.ToString("x16") + ", " +
"HandlesCount = 0x" + HandlesCount.ToString("x8") + ", " +
"Timeout = 0x" + Timeout.ToString("x16"));
if ((uint)HandlesCount > 0x40)
{
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.CountOutOfRange);
return;
}
KThread CurrThread = Process.GetThread(ThreadState.Tpidr);
WaitHandle[] Handles = new WaitHandle[HandlesCount + 1];
for (int Index = 0; Index < HandlesCount; Index++)
{
int Handle = Memory.ReadInt32(HandlesPtr + Index * 4);
KSynchronizationObject SyncObj = Process.HandleTable.GetData <KSynchronizationObject>(Handle);
if (SyncObj == null)
{
Device.Log.PrintWarning(LogClass.KernelSvc, $"Invalid handle 0x{Handle:x8}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidHandle);
return;
}
Handles[Index] = SyncObj.WaitEvent;
}
using (AutoResetEvent WaitEvent = new AutoResetEvent(false))
{
if (!SyncWaits.TryAdd(CurrThread, WaitEvent))
{
throw new InvalidOperationException();
}
Handles[HandlesCount] = WaitEvent;
Process.Scheduler.Suspend(CurrThread);
int HandleIndex;
ulong Result = 0;
if (Timeout != ulong.MaxValue)
{
HandleIndex = WaitHandle.WaitAny(Handles, NsTimeConverter.GetTimeMs(Timeout));
}
else
{
HandleIndex = WaitHandle.WaitAny(Handles);
}
if (HandleIndex == WaitHandle.WaitTimeout)
{
Result = MakeError(ErrorModule.Kernel, KernelErr.Timeout);
}
else if (HandleIndex == HandlesCount)
{
Result = MakeError(ErrorModule.Kernel, KernelErr.Canceled);
}
SyncWaits.TryRemove(CurrThread, out _);
Process.Scheduler.Resume(CurrThread);
ThreadState.X0 = Result;
if (Result == 0)
{
ThreadState.X1 = (ulong)HandleIndex;
}
}
}