public KernelResult GenerateHandle(object obj, out int handle)
{
handle = 0;
lock (_table)
{
if (_activeSlotsCount >= _size)
{
return(KernelResult.HandleTableFull);
}
KHandleEntry entry = _nextFreeEntry;
_nextFreeEntry = entry.Next;
entry.Obj = obj;
entry.HandleId = _idCounter;
_activeSlotsCount++;
handle = (int)((_idCounter << 15) & 0xffff8000) | entry.Index;
if ((short)(_idCounter + 1) >= 0)
{
_idCounter++;
}
else
{
_idCounter = 1;
}
}
return(KernelResult.Success);
}
public KernelResult GenerateHandle(object Obj, out int Handle)
{
Handle = 0;
lock (Table)
{
if (ActiveSlotsCount >= Size)
{
return(KernelResult.HandleTableFull);
}
KHandleEntry Entry = NextFreeEntry;
NextFreeEntry = Entry.Next;
Entry.Obj = Obj;
Entry.HandleId = IdCounter;
ActiveSlotsCount++;
Handle = (int)((IdCounter << 15) & (uint)0xffff8000) | Entry.Index;
if ((short)(IdCounter + 1) >= 0)
{
IdCounter++;
}
else
{
IdCounter = 1;
}
}
return(KernelResult.Success);
}
public KProcessHandleTable(Horizon System, int Size = 1024)
{
this.System = System;
this.Size = Size;
IdCounter = 1;
Table = new KHandleEntry[Size];
TableHead = new KHandleEntry(0);
KHandleEntry Entry = TableHead;
for (int Index = 0; Index < Size; Index++)
{
Table[Index] = Entry;
Entry.Next = new KHandleEntry(Index + 1);
Entry = Entry.Next;
}
Table[Size - 1].Next = null;
NextFreeEntry = TableHead;
LockObj = new object();
}
public T GetObject <T>(int Handle)
{
int Index = (Handle >> 0) & 0x7fff;
int HandleId = (Handle >> 15);
lock (Table)
{
if ((Handle >> 30) == 0 && HandleId != 0)
{
KHandleEntry Entry = Table[Index];
if (Entry.HandleId == HandleId && Entry.Obj is T Obj)
{
return(Obj);
}
}
}
return(default(T));
}
public T GetObject <T>(int handle)
{
int index = (handle >> 0) & 0x7fff;
int handleId = (handle >> 15);
lock (_table)
{
if ((handle >> 30) == 0 && handleId != 0)
{
KHandleEntry entry = _table[index];
if (entry.HandleId == handleId && entry.Obj is T obj)
{
return(obj);
}
}
}
return(default(T));
}
public void Destroy()
{
lock (Table)
{
for (int Index = 0; Index < Size; Index++)
{
KHandleEntry Entry = Table[Index];
if (Entry.Obj != null)
{
if (Entry.Obj is IDisposable DisposableObj)
{
DisposableObj.Dispose();
}
Entry.Obj = null;
Entry.Next = NextFreeEntry;
NextFreeEntry = Entry;
}
}
}
}
public void Destroy()
{
lock (_table)
{
for (int index = 0; index < _size; index++)
{
KHandleEntry entry = _table[index];
if (entry.Obj != null)
{
if (entry.Obj is IDisposable disposableObj)
{
disposableObj.Dispose();
}
entry.Obj = null;
entry.Next = _nextFreeEntry;
_nextFreeEntry = entry;
}
}
}
}
public KernelResult Initialize(int Size)
{
if ((uint)Size > 1024)
{
return(KernelResult.OutOfMemory);
}
if (Size < 1)
{
Size = 1024;
}
this.Size = Size;
IdCounter = 1;
Table = new KHandleEntry[Size];
TableHead = new KHandleEntry(0);
KHandleEntry Entry = TableHead;
for (int Index = 0; Index < Size; Index++)
{
Table[Index] = Entry;
Entry.Next = new KHandleEntry(Index + 1);
Entry = Entry.Next;
}
Table[Size - 1].Next = null;
NextFreeEntry = TableHead;
return(KernelResult.Success);
}
public KernelResult Initialize(int size)
{
if ((uint)size > 1024)
{
return(KernelResult.OutOfMemory);
}
if (size < 1)
{
size = 1024;
}
_size = size;
_idCounter = 1;
_table = new KHandleEntry[size];
_tableHead = new KHandleEntry(0);
KHandleEntry entry = _tableHead;
for (int index = 0; index < size; index++)
{
_table[index] = entry;
entry.Next = new KHandleEntry(index + 1);
entry = entry.Next;
}
_table[size - 1].Next = null;
_nextFreeEntry = _tableHead;
return(KernelResult.Success);
}
public bool CloseHandle(int Handle)
{
if ((Handle >> 30) != 0 ||
Handle == SelfThreadHandle ||
Handle == SelfProcessHandle)
{
return(false);
}
int Index = (Handle >> 0) & 0x7fff;
int HandleId = (Handle >> 15);
bool Result = false;
lock (Table)
{
if (HandleId != 0 && Index < Size)
{
KHandleEntry Entry = Table[Index];
if (Entry.Obj != null && Entry.HandleId == HandleId)
{
Entry.Obj = null;
Entry.Next = NextFreeEntry;
NextFreeEntry = Entry;
ActiveSlotsCount--;
Result = true;
}
}
}
return(Result);
}
public bool CloseHandle(int handle)
{
if ((handle >> 30) != 0 ||
handle == SelfThreadHandle ||
handle == SelfProcessHandle)
{
return(false);
}
int index = (handle >> 0) & 0x7fff;
int handleId = (handle >> 15);
bool result = false;
lock (_table)
{
if (handleId != 0 && index < _size)
{
KHandleEntry entry = _table[index];
if (entry.Obj != null && entry.HandleId == handleId)
{
entry.Obj = null;
entry.Next = _nextFreeEntry;
_nextFreeEntry = entry;
_activeSlotsCount--;
result = true;
}
}
}
return(result);
}
