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ryujinx-final/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.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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C#

using LibHac;
using Ryujinx.HLE.HOS.Ipc;
using System;
namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
{
class IStorage : IpcService, IDisposable
{
private LibHac.Fs.IStorage _baseStorage;
public IStorage(LibHac.Fs.IStorage baseStorage)
{
_baseStorage = baseStorage;
}
[Command(0)]
// Read(u64 offset, u64 length) -> buffer<u8, 0x46, 0> buffer
public ResultCode Read(ServiceCtx context)
{
long offset = context.RequestData.ReadInt64();
long size = context.RequestData.ReadInt64();
if (context.Request.ReceiveBuff.Count > 0)
{
IpcBuffDesc buffDesc = context.Request.ReceiveBuff[0];
// Use smaller length to avoid overflows.
if (size > buffDesc.Size)
{
size = buffDesc.Size;
}
byte[] data = new byte[size];
Result result = _baseStorage.Read(offset, data);
context.Memory.Write((ulong)buffDesc.Position, data);
return (ResultCode)result.Value;
}
return ResultCode.Success;
}
[Command(4)]
// GetSize() -> u64 size
public ResultCode GetSize(ServiceCtx context)
{
Result result = _baseStorage.GetSize(out long size);
context.ResponseData.Write(size);
return (ResultCode)result.Value;
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
_baseStorage?.Dispose();
}
}
}
}