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Better process implementation (#491)

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* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro
This commit is contained in:
gdkchan 2018-11-28 20:18:09 -02:00 • committed by GitHub
parent e7fe7d7247
commit 00579927e4
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119 changed files with 7998 additions and 3232 deletions
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207
Ryujinx.HLE/HOS/Kernel/KHandleTable.cs Normal file
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using System;
namespace Ryujinx.HLE.HOS.Kernel
{
class KHandleTable
{
private const int SelfThreadHandle = (0x1ffff << 15) | 0;
private const int SelfProcessHandle = (0x1ffff << 15) | 1;
private Horizon System;
private KHandleEntry[] Table;
private KHandleEntry TableHead;
private KHandleEntry NextFreeEntry;
private int ActiveSlotsCount;
private int Size;
private ushort IdCounter;
public KHandleTable(Horizon System)
{
this.System = System;
}
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 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 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 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 KThread GetKThread(int Handle)
{
if (Handle == SelfThreadHandle)
{
return System.Scheduler.GetCurrentThread();
}
else
{
return GetObject<KThread>(Handle);
}
}
public KProcess GetKProcess(int Handle)
{
if (Handle == SelfProcessHandle)
{
return System.Scheduler.GetCurrentProcess();
}
else
{
return GetObject<KProcess>(Handle);
}
}
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;
}
}
}
}
}
}