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e7f2a5ecb7
* Fix session service disposal and improve transfer memory implementation * Remove useless assignment
63 lines
No EOL
1.8 KiB
C#
63 lines
No EOL
1.8 KiB
C#
using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using System;
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namespace Ryujinx.HLE.HOS.Kernel.Memory
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{
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class KTransferMemory : KAutoObject
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{
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private KProcess _creator;
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private readonly KPageList _pageList;
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public ulong Address { get; private set; }
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public ulong Size => _pageList.GetPagesCount() * KMemoryManager.PageSize;
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public MemoryPermission Permission { get; private set; }
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private bool _hasBeenInitialized;
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private bool _isMapped;
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public KTransferMemory(KernelContext context) : base(context)
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{
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_pageList = new KPageList();
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}
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public KernelResult Initialize(ulong address, ulong size, MemoryPermission permission)
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{
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KProcess creator = KernelContext.Scheduler.GetCurrentProcess();
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_creator = creator;
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KernelResult result = creator.MemoryManager.BorrowTransferMemory(_pageList, address, size, permission);
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if (result != KernelResult.Success)
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{
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return result;
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}
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creator.IncrementReferenceCount();
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Permission = permission;
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Address = address;
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_hasBeenInitialized = true;
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_isMapped = false;
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return result;
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}
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protected override void Destroy()
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{
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if (_hasBeenInitialized)
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{
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if (!_isMapped && _creator.MemoryManager.UnborrowTransferMemory(Address, Size, _pageList) != KernelResult.Success)
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{
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throw new InvalidOperationException("Unexpected failure restoring transfer memory attributes.");
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}
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_creator.ResourceLimit?.Release(LimitableResource.TransferMemory, 1);
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_creator.DecrementReferenceCount();
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}
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}
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}
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} |