drashna/ryujinx
1
0
Fork 0
Code Activity Actions

Refactor SVC handler (#540)

Browse source 
* Refactor SVC handler

* Get rid of KernelErr

* Split kernel code files into multiple folders
This commit is contained in:
gdkchan 2018-12-18 03:33:36 -02:00 • committed by GitHub
parent 2534a7f10c
commit 0039bb6394
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
105 changed files with 1894 additions and 1982 deletions
Download patch file Download diff file Expand all files Collapse all files

209
Ryujinx.HLE/HOS/Kernel/Process/KHandleTable.cs Normal file
View file

@ -0,0 +1,209 @@
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Threading;
using System;
namespace Ryujinx.HLE.HOS.Kernel.Process
{
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)
{
_system = system;
}
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 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 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;
}
}
}
}
}
}