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https://github.com/GreemDev/Ryujinx.git
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fb1d9493a3
* Rename enum fields * Naming conventions * Remove unneeded ".this" * Remove unneeded semicolons * Remove unused Usings * Don't use var * Remove unneeded enum underlying types * Explicitly label class visibility * Remove unneeded @ prefixes * Remove unneeded commas * Remove unneeded if expressions * Method doesn't use unsafe code * Remove unneeded casts * Initialized objects don't need an empty constructor * Remove settings from DotSettings * Revert "Explicitly label class visibility" This reverts commit ad5eb5787cc5b27a4631cd46ef5f551c4ae95e51. * Small changes * Revert external enum renaming * Changes from feedback * Apply previous refactorings to the merged code
68 lines
No EOL
2 KiB
C#
68 lines
No EOL
2 KiB
C#
using Ryujinx.Common;
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namespace Ryujinx.HLE.HOS.Kernel
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{
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class KSharedMemory
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{
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private KPageList _pageList;
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private long _ownerPid;
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private MemoryPermission _ownerPermission;
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private MemoryPermission _userPermission;
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public KSharedMemory(
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KPageList pageList,
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long ownerPid,
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MemoryPermission ownerPermission,
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MemoryPermission userPermission)
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{
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_pageList = pageList;
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_ownerPid = ownerPid;
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_ownerPermission = ownerPermission;
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_userPermission = userPermission;
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}
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public KernelResult MapIntoProcess(
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KMemoryManager memoryManager,
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ulong address,
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ulong size,
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KProcess process,
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MemoryPermission permission)
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{
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
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if (_pageList.GetPagesCount() != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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MemoryPermission expectedPermission = process.Pid == _ownerPid
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? _ownerPermission
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: _userPermission;
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if (permission != expectedPermission)
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{
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return KernelResult.InvalidPermission;
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}
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return memoryManager.MapPages(address, _pageList, MemoryState.SharedMemory, permission);
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}
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public KernelResult UnmapFromProcess(
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KMemoryManager memoryManager,
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ulong address,
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ulong size,
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KProcess process)
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{
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KMemoryManager.PageSize);
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if (_pageList.GetPagesCount() != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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return memoryManager.UnmapPages(address, _pageList, MemoryState.SharedMemory);
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}
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}
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} |