Ryujinx/Ryujinx.HLE/HOS/Services/Am/AppletAE/IStorageAccessor.cs
gdkchan f77694e4f7
Implement a new physical memory manager and replace DeviceMemory (#856)
* Implement a new physical memory manager and replace DeviceMemory

* Proper generic constraints

* Fix debug build

* Add memory tests

* New CPU memory manager and general code cleanup

* Remove host memory management from CPU project, use Ryujinx.Memory instead

* Fix tests

* Document exceptions on MemoryBlock

* Fix leak on unix memory allocation

* Proper disposal of some objects on tests

* Fix JitCache not being set as initialized

* GetRef without checks for 8-bits and 16-bits CAS

* Add MemoryBlock destructor

* Throw in separate method to improve codegen

* Address PR feedback

* QueryModified improvements

* Fix memory write tracking not marking all pages as modified in some cases

* Simplify MarkRegionAsModified

* Remove XML doc for ghost param

* Add back optimization to avoid useless buffer updates

* Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper

* Some nits

* Do not perform address translation when size is 0

* Address PR feedback and format NativeInterface class

* Remove ghost parameter description

* Update Ryujinx.Cpu to .NET Core 3.1

* Address PR feedback

* Fix build

* Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified

* Typo
2020-05-04 08:54:50 +10:00

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2.1 KiB
C#

using System;
namespace Ryujinx.HLE.HOS.Services.Am.AppletAE
{
class IStorageAccessor : IpcService
{
private IStorage _storage;
public IStorageAccessor(IStorage storage)
{
_storage = storage;
}
[Command(0)]
// GetSize() -> u64
public ResultCode GetSize(ServiceCtx context)
{
context.ResponseData.Write((long)_storage.Data.Length);
return ResultCode.Success;
}
[Command(10)]
// Write(u64, buffer<bytes, 0x21>)
public ResultCode Write(ServiceCtx context)
{
long writePosition = context.RequestData.ReadInt64();
if (writePosition > _storage.Data.Length)
{
return ResultCode.OutOfBounds;
}
(long position, long size) = context.Request.GetBufferType0x21();
size = Math.Min(size, _storage.Data.Length - writePosition);
if (size > 0)
{
long maxSize = _storage.Data.Length - writePosition;
if (size > maxSize)
{
size = maxSize;
}
byte[] data = new byte[size];
context.Memory.Read((ulong)position, data);
Buffer.BlockCopy(data, 0, _storage.Data, (int)writePosition, (int)size);
}
return ResultCode.Success;
}
[Command(11)]
// Read(u64) -> buffer<bytes, 0x22>
public ResultCode Read(ServiceCtx context)
{
long readPosition = context.RequestData.ReadInt64();
if (readPosition > _storage.Data.Length)
{
return ResultCode.OutOfBounds;
}
(long position, long size) = context.Request.GetBufferType0x22();
size = Math.Min(size, _storage.Data.Length - readPosition);
byte[] data = new byte[size];
Buffer.BlockCopy(_storage.Data, (int)readPosition, data, 0, (int)size);
context.Memory.Write((ulong)position, data);
return ResultCode.Success;
}
}
}