public static void YieldUntilCompletion(Task task)
{
KThread currentThread = Context.Scheduler.GetCurrentThread();
Context.CriticalSection.Enter();
currentThread.Reschedule(ThreadSchedState.Paused);
task.ContinueWith((antecedent) =>
{
currentThread.Reschedule(ThreadSchedState.Running);
});
Context.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();
}
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 long ArbitrateLock(
Process Process,
AMemory Memory,
int OwnerHandle,
long MutexAddress,
int RequesterHandle)
{
System.CriticalSectionLock.Lock();
KThread CurrentThread = System.Scheduler.GetCurrentThread();
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = 0;
if (!UserToKernelInt32(Memory, MutexAddress, out int MutexValue))
{
System.CriticalSectionLock.Unlock();
return(MakeError(ErrorModule.Kernel, KernelErr.NoAccessPerm));;
}
if (MutexValue != (OwnerHandle | HasListenersMask))
{
System.CriticalSectionLock.Unlock();
return(0);
}
KThread MutexOwner = Process.HandleTable.GetObject <KThread>(OwnerHandle);
if (MutexOwner == null)
{
System.CriticalSectionLock.Unlock();
return(MakeError(ErrorModule.Kernel, KernelErr.InvalidHandle));
}
CurrentThread.MutexAddress = MutexAddress;
CurrentThread.ThreadHandleForUserMutex = RequesterHandle;
MutexOwner.AddMutexWaiter(CurrentThread);
CurrentThread.Reschedule(ThreadSchedState.Paused);
System.CriticalSectionLock.Unlock();
System.CriticalSectionLock.Lock();
if (CurrentThread.MutexOwner != null)
{
CurrentThread.MutexOwner.RemoveMutexWaiter(CurrentThread);
}
System.CriticalSectionLock.Unlock();
return((uint)CurrentThread.ObjSyncResult);
}
public static void Wait(Horizon System, LinkedList <KThread> ThreadList, object Mutex, long Timeout)
{
KThread CurrentThread = System.Scheduler.GetCurrentThread();
System.CriticalSection.Enter();
Monitor.Exit(Mutex);
CurrentThread.Withholder = ThreadList;
CurrentThread.Reschedule(ThreadSchedState.Paused);
CurrentThread.WithholderNode = ThreadList.AddLast(CurrentThread);
if (CurrentThread.ShallBeTerminated ||
CurrentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
ThreadList.Remove(CurrentThread.WithholderNode);
CurrentThread.Reschedule(ThreadSchedState.Running);
CurrentThread.Withholder = null;
System.CriticalSection.Leave();
}
else
{
if (Timeout > 0)
{
System.TimeManager.ScheduleFutureInvocation(CurrentThread, Timeout);
}
System.CriticalSection.Leave();
if (Timeout > 0)
{
System.TimeManager.UnscheduleFutureInvocation(CurrentThread);
}
}
Monitor.Enter(Mutex);
}
public static void Wait(Horizon system, LinkedList <KThread> threadList, object mutex, long timeout)
{
KThread currentThread = system.Scheduler.GetCurrentThread();
system.CriticalSection.Enter();
Monitor.Exit(mutex);
currentThread.Withholder = threadList;
currentThread.Reschedule(ThreadSchedState.Paused);
currentThread.WithholderNode = threadList.AddLast(currentThread);
if (currentThread.ShallBeTerminated ||
currentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
threadList.Remove(currentThread.WithholderNode);
currentThread.Reschedule(ThreadSchedState.Running);
currentThread.Withholder = null;
system.CriticalSection.Leave();
}
else
{
if (timeout > 0)
{
system.TimeManager.ScheduleFutureInvocation(currentThread, timeout);
}
system.CriticalSection.Leave();
if (timeout > 0)
{
system.TimeManager.UnscheduleFutureInvocation(currentThread);
}
}
Monitor.Enter(mutex);
}
public long ArbitrateLock(int ownerHandle, long mutexAddress, int requesterHandle)
{
KThread currentThread = _system.Scheduler.GetCurrentThread();
_system.CriticalSection.Enter();
currentThread.SignaledObj = null;
currentThread.ObjSyncResult = 0;
KProcess currentProcess = _system.Scheduler.GetCurrentProcess();
if (!KernelTransfer.UserToKernelInt32(_system, mutexAddress, out int mutexValue))
{
_system.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.NoAccessPerm));
}
if (mutexValue != (ownerHandle | HasListenersMask))
{
_system.CriticalSection.Leave();
return(0);
}
KThread mutexOwner = currentProcess.HandleTable.GetObject <KThread>(ownerHandle);
if (mutexOwner == null)
{
_system.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.InvalidHandle));
}
currentThread.MutexAddress = mutexAddress;
currentThread.ThreadHandleForUserMutex = requesterHandle;
mutexOwner.AddMutexWaiter(currentThread);
currentThread.Reschedule(ThreadSchedState.Paused);
_system.CriticalSection.Leave();
_system.CriticalSection.Enter();
if (currentThread.MutexOwner != null)
{
currentThread.MutexOwner.RemoveMutexWaiter(currentThread);
}
_system.CriticalSection.Leave();
return((uint)currentThread.ObjSyncResult);
}
public static void NotifyAll(Horizon System, LinkedList <KThread> ThreadList)
{
System.CriticalSection.Enter();
LinkedListNode <KThread> Node = ThreadList.First;
for (; Node != null; Node = ThreadList.First)
{
KThread Thread = Node.Value;
ThreadList.Remove(Thread.WithholderNode);
Thread.Withholder = null;
Thread.Reschedule(ThreadSchedState.Running);
}
System.CriticalSection.Leave();
}
public static void NotifyAll(Horizon system, LinkedList <KThread> threadList)
{
system.CriticalSection.Enter();
LinkedListNode <KThread> node = threadList.First;
for (; node != null; node = threadList.First)
{
KThread thread = node.Value;
threadList.Remove(thread.WithholderNode);
thread.Withholder = null;
thread.Reschedule(ThreadSchedState.Running);
}
system.CriticalSection.Leave();
}
private void SendSyncRequest(AThreadState ThreadState, long MessagePtr, long Size, int Handle)
{
KThread CurrThread = Process.GetThread(ThreadState.Tpidr);
byte[] MessageData = Memory.ReadBytes(MessagePtr, Size);
KSession Session = Process.HandleTable.GetObject <KSession>(Handle);
if (Session != null)
{
//Process.Scheduler.Suspend(CurrThread);
System.CriticalSectionLock.Lock();
KThread CurrentThread = System.Scheduler.GetCurrentThread();
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = 0;
CurrentThread.Reschedule(ThreadSchedState.Paused);
IpcMessage Message = new IpcMessage(MessageData, MessagePtr);
ThreadPool.QueueUserWorkItem(ProcessIpcRequest, new HleIpcMessage(
CurrentThread,
Session,
Message,
MessagePtr));
System.CriticalSectionLock.Unlock();
ThreadState.X0 = (ulong)CurrentThread.ObjSyncResult;
}
else
{
Device.Log.PrintWarning(LogClass.KernelSvc, $"Invalid session handle 0x{Handle:x8}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidHandle);
}
}
private void SendSyncRequest(CpuThreadState threadState, long messagePtr, long size, int handle)
{
byte[] messageData = _memory.ReadBytes(messagePtr, size);
KSession session = _process.HandleTable.GetObject <KSession>(handle);
if (session != null)
{
_system.CriticalSection.Enter();
KThread currentThread = _system.Scheduler.GetCurrentThread();
currentThread.SignaledObj = null;
currentThread.ObjSyncResult = 0;
currentThread.Reschedule(ThreadSchedState.Paused);
IpcMessage message = new IpcMessage(messageData, messagePtr);
ThreadPool.QueueUserWorkItem(ProcessIpcRequest, new HleIpcMessage(
currentThread,
session,
message,
messagePtr));
_system.ThreadCounter.AddCount();
_system.CriticalSection.Leave();
threadState.X0 = (ulong)currentThread.ObjSyncResult;
}
else
{
Logger.PrintWarning(LogClass.KernelSvc, $"Invalid session handle 0x{handle:x8}!");
threadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidHandle);
}
}
public long WaitProcessWideKeyAtomic(
long MutexAddress,
long CondVarAddress,
int ThreadHandle,
long Timeout)
{
System.CriticalSection.Enter();
KThread CurrentThread = System.Scheduler.GetCurrentThread();
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = (int)MakeError(ErrorModule.Kernel, KernelErr.Timeout);
if (CurrentThread.ShallBeTerminated ||
CurrentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating));
}
(long Result, _) = MutexUnlock(CurrentThread, MutexAddress);
if (Result != 0)
{
System.CriticalSection.Leave();
return(Result);
}
CurrentThread.MutexAddress = MutexAddress;
CurrentThread.ThreadHandleForUserMutex = ThreadHandle;
CurrentThread.CondVarAddress = CondVarAddress;
CondVarThreads.Add(CurrentThread);
if (Timeout != 0)
{
CurrentThread.Reschedule(ThreadSchedState.Paused);
if (Timeout > 0)
{
System.TimeManager.ScheduleFutureInvocation(CurrentThread, Timeout);
}
}
System.CriticalSection.Leave();
if (Timeout > 0)
{
System.TimeManager.UnscheduleFutureInvocation(CurrentThread);
}
System.CriticalSection.Enter();
if (CurrentThread.MutexOwner != null)
{
CurrentThread.MutexOwner.RemoveMutexWaiter(CurrentThread);
}
CondVarThreads.Remove(CurrentThread);
System.CriticalSection.Leave();
return((uint)CurrentThread.ObjSyncResult);
}
public long WaitForAddressIfLessThan(long Address, int Value, bool ShouldDecrement, long Timeout)
{
KThread CurrentThread = System.Scheduler.GetCurrentThread();
System.CriticalSection.Enter();
if (CurrentThread.ShallBeTerminated ||
CurrentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating));
}
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = (int)MakeError(ErrorModule.Kernel, KernelErr.Timeout);
KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
//If ShouldDecrement is true, do atomic decrement of the value at Address.
CurrentProcess.CpuMemory.SetExclusive(0, Address);
if (!KernelTransfer.UserToKernelInt32(System, Address, out int CurrentValue))
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.NoAccessPerm));
}
if (ShouldDecrement)
{
while (CurrentValue < Value)
{
if (CurrentProcess.CpuMemory.TestExclusive(0, Address))
{
CurrentProcess.CpuMemory.WriteInt32(Address, CurrentValue - 1);
CurrentProcess.CpuMemory.ClearExclusiveForStore(0);
break;
}
CurrentProcess.CpuMemory.SetExclusive(0, Address);
CurrentValue = CurrentProcess.CpuMemory.ReadInt32(Address);
}
}
CurrentProcess.CpuMemory.ClearExclusive(0);
if (CurrentValue < Value)
{
if (Timeout == 0)
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.Timeout));
}
CurrentThread.MutexAddress = Address;
CurrentThread.WaitingInArbitration = true;
InsertSortedByPriority(ArbiterThreads, CurrentThread);
CurrentThread.Reschedule(ThreadSchedState.Paused);
if (Timeout > 0)
{
System.TimeManager.ScheduleFutureInvocation(CurrentThread, Timeout);
}
System.CriticalSection.Leave();
if (Timeout > 0)
{
System.TimeManager.UnscheduleFutureInvocation(CurrentThread);
}
System.CriticalSection.Enter();
if (CurrentThread.WaitingInArbitration)
{
ArbiterThreads.Remove(CurrentThread);
CurrentThread.WaitingInArbitration = false;
}
System.CriticalSection.Leave();
return(CurrentThread.ObjSyncResult);
}
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.InvalidState));
}
public long WaitForAddressIfEqual(long Address, int Value, long Timeout)
{
KThread CurrentThread = System.Scheduler.GetCurrentThread();
System.CriticalSection.Enter();
if (CurrentThread.ShallBeTerminated ||
CurrentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating));
}
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = (int)MakeError(ErrorModule.Kernel, KernelErr.Timeout);
if (!KernelTransfer.UserToKernelInt32(System, Address, out int CurrentValue))
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.NoAccessPerm));
}
if (CurrentValue == Value)
{
if (Timeout == 0)
{
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.Timeout));
}
CurrentThread.MutexAddress = Address;
CurrentThread.WaitingInArbitration = true;
InsertSortedByPriority(ArbiterThreads, CurrentThread);
CurrentThread.Reschedule(ThreadSchedState.Paused);
if (Timeout > 0)
{
System.TimeManager.ScheduleFutureInvocation(CurrentThread, Timeout);
}
System.CriticalSection.Leave();
if (Timeout > 0)
{
System.TimeManager.UnscheduleFutureInvocation(CurrentThread);
}
System.CriticalSection.Enter();
if (CurrentThread.WaitingInArbitration)
{
ArbiterThreads.Remove(CurrentThread);
CurrentThread.WaitingInArbitration = false;
}
System.CriticalSection.Leave();
return(CurrentThread.ObjSyncResult);
}
System.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.InvalidState));
}
public long WaitFor(KSynchronizationObject[] SyncObjs, long Timeout, ref int HndIndex)
{
long Result = MakeError(ErrorModule.Kernel, KernelErr.Timeout);
System.CriticalSection.Enter();
//Check if objects are already signaled before waiting.
for (int Index = 0; Index < SyncObjs.Length; Index++)
{
if (!SyncObjs[Index].IsSignaled())
{
continue;
}
HndIndex = Index;
System.CriticalSection.Leave();
return(0);
}
if (Timeout == 0)
{
System.CriticalSection.Leave();
return(Result);
}
KThread CurrentThread = System.Scheduler.GetCurrentThread();
if (CurrentThread.ShallBeTerminated ||
CurrentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
Result = MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating);
}
else if (CurrentThread.SyncCancelled)
{
CurrentThread.SyncCancelled = false;
Result = MakeError(ErrorModule.Kernel, KernelErr.Cancelled);
}
else
{
LinkedListNode <KThread>[] SyncNodes = new LinkedListNode <KThread> [SyncObjs.Length];
for (int Index = 0; Index < SyncObjs.Length; Index++)
{
SyncNodes[Index] = SyncObjs[Index].AddWaitingThread(CurrentThread);
}
CurrentThread.WaitingSync = true;
CurrentThread.SignaledObj = null;
CurrentThread.ObjSyncResult = (int)Result;
CurrentThread.Reschedule(ThreadSchedState.Paused);
if (Timeout > 0)
{
System.TimeManager.ScheduleFutureInvocation(CurrentThread, Timeout);
}
System.CriticalSection.Leave();
CurrentThread.WaitingSync = false;
if (Timeout > 0)
{
System.TimeManager.UnscheduleFutureInvocation(CurrentThread);
}
System.CriticalSection.Enter();
Result = (uint)CurrentThread.ObjSyncResult;
HndIndex = -1;
for (int Index = 0; Index < SyncObjs.Length; Index++)
{
SyncObjs[Index].RemoveWaitingThread(SyncNodes[Index]);
if (SyncObjs[Index] == CurrentThread.SignaledObj)
{
HndIndex = Index;
}
}
}
System.CriticalSection.Leave();
return(Result);
}
public long WaitFor(KSynchronizationObject[] syncObjs, long timeout, ref int hndIndex)
{
long result = MakeError(ErrorModule.Kernel, KernelErr.Timeout);
_system.CriticalSection.Enter();
//Check if objects are already signaled before waiting.
for (int index = 0; index < syncObjs.Length; index++)
{
if (!syncObjs[index].IsSignaled())
{
continue;
}
hndIndex = index;
_system.CriticalSection.Leave();
return(0);
}
if (timeout == 0)
{
_system.CriticalSection.Leave();
return(result);
}
KThread currentThread = _system.Scheduler.GetCurrentThread();
if (currentThread.ShallBeTerminated ||
currentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
result = MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating);
}
else if (currentThread.SyncCancelled)
{
currentThread.SyncCancelled = false;
result = MakeError(ErrorModule.Kernel, KernelErr.Cancelled);
}
else
{
LinkedListNode <KThread>[] syncNodes = new LinkedListNode <KThread> [syncObjs.Length];
for (int index = 0; index < syncObjs.Length; index++)
{
syncNodes[index] = syncObjs[index].AddWaitingThread(currentThread);
}
currentThread.WaitingSync = true;
currentThread.SignaledObj = null;
currentThread.ObjSyncResult = (int)result;
currentThread.Reschedule(ThreadSchedState.Paused);
if (timeout > 0)
{
_system.TimeManager.ScheduleFutureInvocation(currentThread, timeout);
}
_system.CriticalSection.Leave();
currentThread.WaitingSync = false;
if (timeout > 0)
{
_system.TimeManager.UnscheduleFutureInvocation(currentThread);
}
_system.CriticalSection.Enter();
result = (uint)currentThread.ObjSyncResult;
hndIndex = -1;
for (int index = 0; index < syncObjs.Length; index++)
{
syncObjs[index].RemoveWaitingThread(syncNodes[index]);
if (syncObjs[index] == currentThread.SignaledObj)
{
hndIndex = index;
}
}
}
_system.CriticalSection.Leave();
return(result);
}
public long WaitProcessWideKeyAtomic(
long mutexAddress,
long condVarAddress,
int threadHandle,
long timeout)
{
_system.CriticalSection.Enter();
KThread currentThread = _system.Scheduler.GetCurrentThread();
currentThread.SignaledObj = null;
currentThread.ObjSyncResult = (int)MakeError(ErrorModule.Kernel, KernelErr.Timeout);
if (currentThread.ShallBeTerminated ||
currentThread.SchedFlags == ThreadSchedState.TerminationPending)
{
_system.CriticalSection.Leave();
return(MakeError(ErrorModule.Kernel, KernelErr.ThreadTerminating));
}
(long result, _) = MutexUnlock(currentThread, mutexAddress);
if (result != 0)
{
_system.CriticalSection.Leave();
return(result);
}
currentThread.MutexAddress = mutexAddress;
currentThread.ThreadHandleForUserMutex = threadHandle;
currentThread.CondVarAddress = condVarAddress;
CondVarThreads.Add(currentThread);
if (timeout != 0)
{
currentThread.Reschedule(ThreadSchedState.Paused);
if (timeout > 0)
{
_system.TimeManager.ScheduleFutureInvocation(currentThread, timeout);
}
}
_system.CriticalSection.Leave();
if (timeout > 0)
{
_system.TimeManager.UnscheduleFutureInvocation(currentThread);
}
_system.CriticalSection.Enter();
if (currentThread.MutexOwner != null)
{
currentThread.MutexOwner.RemoveMutexWaiter(currentThread);
}
CondVarThreads.Remove(currentThread);
_system.CriticalSection.Leave();
return((uint)currentThread.ObjSyncResult);
}
public KernelResult Start(int mainThreadPriority, ulong stackSize)
{
lock (_processLock)
{
if (_state > ProcessState.CreatedAttached)
{
return(KernelResult.InvalidState);
}
if (ResourceLimit != null && !ResourceLimit.Reserve(LimitableResource.Thread, 1))
{
return(KernelResult.ResLimitExceeded);
}
KResourceLimit threadResourceLimit = ResourceLimit;
KResourceLimit memoryResourceLimit = null;
if (_mainThreadStackSize != 0)
{
throw new InvalidOperationException("Trying to start a process with a invalid state!");
}
ulong stackSizeRounded = BitUtils.AlignUp(stackSize, KMemoryManager.PageSize);
ulong neededSize = stackSizeRounded + _imageSize;
//Check if the needed size for the code and the stack will fit on the
//memory usage capacity of this Process. Also check for possible overflow
//on the above addition.
if (neededSize > _memoryUsageCapacity ||
neededSize < stackSizeRounded)
{
threadResourceLimit?.Release(LimitableResource.Thread, 1);
return(KernelResult.OutOfMemory);
}
if (stackSizeRounded != 0 && ResourceLimit != null)
{
memoryResourceLimit = ResourceLimit;
if (!memoryResourceLimit.Reserve(LimitableResource.Memory, stackSizeRounded))
{
threadResourceLimit?.Release(LimitableResource.Thread, 1);
return(KernelResult.ResLimitExceeded);
}
}
KernelResult result;
KThread mainThread = null;
ulong stackTop = 0;
void CleanUpForError()
{
mainThread?.Terminate();
HandleTable.Destroy();
if (_mainThreadStackSize != 0)
{
ulong stackBottom = stackTop - _mainThreadStackSize;
ulong stackPagesCount = _mainThreadStackSize / KMemoryManager.PageSize;
MemoryManager.UnmapForKernel(stackBottom, stackPagesCount, MemoryState.Stack);
}
memoryResourceLimit?.Release(LimitableResource.Memory, stackSizeRounded);
threadResourceLimit?.Release(LimitableResource.Thread, 1);
}
if (stackSizeRounded != 0)
{
ulong stackPagesCount = stackSizeRounded / KMemoryManager.PageSize;
ulong regionStart = MemoryManager.StackRegionStart;
ulong regionSize = MemoryManager.StackRegionEnd - regionStart;
ulong regionPagesCount = regionSize / KMemoryManager.PageSize;
result = MemoryManager.AllocateOrMapPa(
stackPagesCount,
KMemoryManager.PageSize,
0,
false,
regionStart,
regionPagesCount,
MemoryState.Stack,
MemoryPermission.ReadAndWrite,
out ulong stackBottom);
if (result != KernelResult.Success)
{
CleanUpForError();
return(result);
}
_mainThreadStackSize += stackSizeRounded;
stackTop = stackBottom + stackSizeRounded;
}
ulong heapCapacity = _memoryUsageCapacity - _mainThreadStackSize - _imageSize;
result = MemoryManager.SetHeapCapacity(heapCapacity);
if (result != KernelResult.Success)
{
CleanUpForError();
return(result);
}
HandleTable = new KHandleTable(System);
result = HandleTable.Initialize(Capabilities.HandleTableSize);
if (result != KernelResult.Success)
{
CleanUpForError();
return(result);
}
mainThread = new KThread(System);
result = mainThread.Initialize(
_entrypoint,
0,
stackTop,
mainThreadPriority,
DefaultCpuCore,
this);
if (result != KernelResult.Success)
{
CleanUpForError();
return(result);
}
result = HandleTable.GenerateHandle(mainThread, out int mainThreadHandle);
if (result != KernelResult.Success)
{
CleanUpForError();
return(result);
}
mainThread.SetEntryArguments(0, mainThreadHandle);
ProcessState oldState = _state;
ProcessState newState = _state != ProcessState.Created
? ProcessState.Attached
: ProcessState.Started;
SetState(newState);
//TODO: We can't call KThread.Start from a non-guest thread.
//We will need to make some changes to allow the creation of
//dummy threads that will be used to initialize the current
//thread on KCoreContext so that GetCurrentThread doesn't fail.
/* Result = MainThread.Start();
*
* if (Result != KernelResult.Success)
* {
* SetState(OldState);
*
* CleanUpForError();
* } */
mainThread.Reschedule(ThreadSchedState.Running);
return(result);
}
}