Ryujinx/Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs
gdkchan 00579927e4
Better process implementation (#491)
* 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
2018-11-28 20:18:09 -02:00

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C#

namespace Ryujinx.HLE.HOS.Kernel
{
class KMemoryRegionBlock
{
public long[][] Masks;
public ulong FreeCount;
public int MaxLevel;
public ulong StartAligned;
public ulong SizeInBlocksTruncated;
public ulong SizeInBlocksRounded;
public int Order;
public int NextOrder;
public bool TryCoalesce(int Index, int Size)
{
long Mask = ((1L << Size) - 1) << (Index & 63);
Index /= 64;
if ((Mask & ~Masks[MaxLevel - 1][Index]) != 0)
{
return false;
}
Masks[MaxLevel - 1][Index] &= ~Mask;
for (int Level = MaxLevel - 2; Level >= 0; Level--, Index /= 64)
{
Masks[Level][Index / 64] &= ~(1L << (Index & 63));
if (Masks[Level][Index / 64] != 0)
{
break;
}
}
FreeCount -= (ulong)Size;
return true;
}
}
}