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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /Ryujinx.Memory/WindowsShared
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'Ryujinx.Memory/WindowsShared')
-rw-r--r--Ryujinx.Memory/WindowsShared/MappingTree.cs87
-rw-r--r--Ryujinx.Memory/WindowsShared/PlaceholderManager.cs736
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsApi.cs101
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsApiException.cs24
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsFlags.cs52
5 files changed, 0 insertions, 1000 deletions
diff --git a/Ryujinx.Memory/WindowsShared/MappingTree.cs b/Ryujinx.Memory/WindowsShared/MappingTree.cs
deleted file mode 100644
index 97758c2b..00000000
--- a/Ryujinx.Memory/WindowsShared/MappingTree.cs
+++ /dev/null
@@ -1,87 +0,0 @@
-using Ryujinx.Common.Collections;
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- /// <summary>
- /// A intrusive Red-Black Tree that also supports getting nodes overlapping a given range.
- /// </summary>
- /// <typeparam name="T">Type of the value stored on the node</typeparam>
- class MappingTree<T> : IntrusiveRedBlackTree<RangeNode<T>>
- {
- private const int ArrayGrowthSize = 16;
-
- public int GetNodes(ulong start, ulong end, ref RangeNode<T>[] overlaps, int overlapCount = 0)
- {
- RangeNode<T> node = this.GetNodeByKey(start);
-
- for (; node != null; node = node.Successor)
- {
- if (overlaps.Length <= overlapCount)
- {
- Array.Resize(ref overlaps, overlapCount + ArrayGrowthSize);
- }
-
- overlaps[overlapCount++] = node;
-
- if (node.End >= end)
- {
- break;
- }
- }
-
- return overlapCount;
- }
- }
-
- class RangeNode<T> : IntrusiveRedBlackTreeNode<RangeNode<T>>, IComparable<RangeNode<T>>, IComparable<ulong>
- {
- public ulong Start { get; }
- public ulong End { get; private set; }
- public T Value { get; }
-
- public RangeNode(ulong start, ulong end, T value)
- {
- Start = start;
- End = end;
- Value = value;
- }
-
- public void Extend(ulong sizeDelta)
- {
- End += sizeDelta;
- }
-
- public int CompareTo(RangeNode<T> other)
- {
- if (Start < other.Start)
- {
- return -1;
- }
- else if (Start <= other.End - 1UL)
- {
- return 0;
- }
- else
- {
- return 1;
- }
- }
-
- public int CompareTo(ulong address)
- {
- if (address < Start)
- {
- return 1;
- }
- else if (address <= End - 1UL)
- {
- return 0;
- }
- else
- {
- return -1;
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs b/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs
deleted file mode 100644
index 3022b661..00000000
--- a/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs
+++ /dev/null
@@ -1,736 +0,0 @@
-using Ryujinx.Common.Collections;
-using Ryujinx.Common.Memory.PartialUnmaps;
-using System;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.Versioning;
-using System.Threading;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- /// <summary>
- /// Windows memory placeholder manager.
- /// </summary>
- [SupportedOSPlatform("windows")]
- class PlaceholderManager
- {
- private const int InitialOverlapsSize = 10;
-
- private readonly MappingTree<ulong> _mappings;
- private readonly MappingTree<MemoryPermission> _protections;
- private readonly IntPtr _partialUnmapStatePtr;
- private readonly Thread _partialUnmapTrimThread;
-
- /// <summary>
- /// Creates a new instance of the Windows memory placeholder manager.
- /// </summary>
- public PlaceholderManager()
- {
- _mappings = new MappingTree<ulong>();
- _protections = new MappingTree<MemoryPermission>();
-
- _partialUnmapStatePtr = PartialUnmapState.GlobalState;
-
- _partialUnmapTrimThread = new Thread(TrimThreadLocalMapLoop);
- _partialUnmapTrimThread.Name = "CPU.PartialUnmapTrimThread";
- _partialUnmapTrimThread.IsBackground = true;
- _partialUnmapTrimThread.Start();
- }
-
- /// <summary>
- /// Gets a reference to the partial unmap state struct.
- /// </summary>
- /// <returns>A reference to the partial unmap state struct</returns>
- private unsafe ref PartialUnmapState GetPartialUnmapState()
- {
- return ref Unsafe.AsRef<PartialUnmapState>((void*)_partialUnmapStatePtr);
- }
-
- /// <summary>
- /// Trims inactive threads from the partial unmap state's thread mapping every few seconds.
- /// Should be run in a Background thread so that it doesn't stop the program from closing.
- /// </summary>
- private void TrimThreadLocalMapLoop()
- {
- while (true)
- {
- Thread.Sleep(2000);
- GetPartialUnmapState().TrimThreads();
- }
- }
-
- /// <summary>
- /// Reserves a range of the address space to be later mapped as shared memory views.
- /// </summary>
- /// <param name="address">Start address of the region to reserve</param>
- /// <param name="size">Size in bytes of the region to reserve</param>
- public void ReserveRange(ulong address, ulong size)
- {
- lock (_mappings)
- {
- _mappings.Add(new RangeNode<ulong>(address, address + size, ulong.MaxValue));
- }
-
- lock (_protections)
- {
- _protections.Add(new RangeNode<MemoryPermission>(address, address + size, MemoryPermission.None));
- }
- }
-
- /// <summary>
- /// Unreserves a range of memory that has been previously reserved with <see cref="ReserveRange"/>.
- /// </summary>
- /// <param name="address">Start address of the region to unreserve</param>
- /// <param name="size">Size in bytes of the region to unreserve</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unreserving the memory</exception>
- public void UnreserveRange(ulong address, ulong size)
- {
- ulong endAddress = address + size;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(address);
- RangeNode<ulong> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
-
- if (IsMapped(node.Value))
- {
- if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)node.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
- }
-
- _mappings.Remove(node);
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
-
- RemoveProtection(address, size);
- }
-
- /// <summary>
- /// Maps a shared memory view on a previously reserved memory region.
- /// </summary>
- /// <param name="sharedMemory">Shared memory that will be the backing storage for the view</param>
- /// <param name="srcOffset">Offset in the shared memory to map</param>
- /// <param name="location">Address to map the view into</param>
- /// <param name="size">Size of the view in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- public void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- UnmapViewInternal(sharedMemory, location, size, owner, updateProtection: false);
- MapViewInternal(sharedMemory, srcOffset, location, size, updateProtection: true);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Maps a shared memory view on a previously reserved memory region.
- /// </summary>
- /// <param name="sharedMemory">Shared memory that will be the backing storage for the view</param>
- /// <param name="srcOffset">Offset in the shared memory to map</param>
- /// <param name="location">Address to map the view into</param>
- /// <param name="size">Size of the view in bytes</param>
- /// <param name="updateProtection">Indicates if the memory protections should be updated after the map</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error mapping the memory</exception>
- private void MapViewInternal(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, bool updateProtection)
- {
- SplitForMap((ulong)location, (ulong)size, srcOffset);
-
- var ptr = WindowsApi.MapViewOfFile3(
- sharedMemory,
- WindowsApi.CurrentProcessHandle,
- location,
- srcOffset,
- size,
- 0x4000,
- MemoryProtection.ReadWrite,
- IntPtr.Zero,
- 0);
-
- if (ptr == IntPtr.Zero)
- {
- throw new WindowsApiException("MapViewOfFile3");
- }
-
- if (updateProtection)
- {
- UpdateProtection((ulong)location, (ulong)size, MemoryPermission.ReadAndWrite);
- }
- }
-
- /// <summary>
- /// Splits a larger placeholder, slicing at the start and end address, for a new memory mapping.
- /// </summary>
- /// <param name="address">Address to split</param>
- /// <param name="size">Size of the new region</param>
- /// <param name="backingOffset">Offset in the shared memory that will be mapped</param>
- private void SplitForMap(ulong address, ulong size, ulong backingOffset)
- {
- ulong endAddress = address + size;
-
- var overlaps = new RangeNode<ulong>[InitialOverlapsSize];
-
- lock (_mappings)
- {
- int count = _mappings.GetNodes(address, endAddress, ref overlaps);
-
- Debug.Assert(count == 1);
- Debug.Assert(!IsMapped(overlaps[0].Value));
-
- var overlap = overlaps[0];
-
- ulong overlapStart = overlap.Start;
- ulong overlapEnd = overlap.End;
- ulong overlapValue = overlap.Value;
-
- _mappings.Remove(overlap);
-
- bool overlapStartsBefore = overlapStart < address;
- bool overlapEndsAfter = overlapEnd > endAddress;
-
- if (overlapStartsBefore && overlapEndsAfter)
- {
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)size,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(overlapStart, address, overlapValue));
- _mappings.Add(new RangeNode<ulong>(endAddress, overlapEnd, AddBackingOffset(overlapValue, endAddress - overlapStart)));
- }
- else if (overlapStartsBefore)
- {
- ulong overlappedSize = overlapEnd - address;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)overlappedSize,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(overlapStart, address, overlapValue));
- }
- else if (overlapEndsAfter)
- {
- ulong overlappedSize = endAddress - overlapStart;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)overlapStart,
- (IntPtr)overlappedSize,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(endAddress, overlapEnd, AddBackingOffset(overlapValue, overlappedSize)));
- }
-
- _mappings.Add(new RangeNode<ulong>(address, endAddress, backingOffset));
- }
- }
-
- /// <summary>
- /// Unmaps a view that has been previously mapped with <see cref="MapView"/>.
- /// </summary>
- /// <remarks>
- /// For "partial unmaps" (when not the entire mapped range is being unmapped), it might be
- /// necessary to unmap the whole range and then remap the sub-ranges that should remain mapped.
- /// </remarks>
- /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
- /// <param name="location">Address to unmap</param>
- /// <param name="size">Size of the region to unmap in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- public void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- UnmapViewInternal(sharedMemory, location, size, owner, updateProtection: true);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Unmaps a view that has been previously mapped with <see cref="MapView"/>.
- /// </summary>
- /// <remarks>
- /// For "partial unmaps" (when not the entire mapped range is being unmapped), it might be
- /// necessary to unmap the whole range and then remap the sub-ranges that should remain mapped.
- /// </remarks>
- /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
- /// <param name="location">Address to unmap</param>
- /// <param name="size">Size of the region to unmap in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- /// <param name="updateProtection">Indicates if the memory protections should be updated after the unmap</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unmapping or remapping the memory</exception>
- private void UnmapViewInternal(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner, bool updateProtection)
- {
- ulong startAddress = (ulong)location;
- ulong unmapSize = (ulong)size;
- ulong endAddress = startAddress + unmapSize;
-
- var overlaps = new RangeNode<ulong>[InitialOverlapsSize];
- int count;
-
- lock (_mappings)
- {
- count = _mappings.GetNodes(startAddress, endAddress, ref overlaps);
- }
-
- for (int index = 0; index < count; index++)
- {
- var overlap = overlaps[index];
-
- if (IsMapped(overlap.Value))
- {
- lock (_mappings)
- {
- _mappings.Remove(overlap);
- _mappings.Add(new RangeNode<ulong>(overlap.Start, overlap.End, ulong.MaxValue));
- }
-
- bool overlapStartsBefore = overlap.Start < startAddress;
- bool overlapEndsAfter = overlap.End > endAddress;
-
- if (overlapStartsBefore || overlapEndsAfter)
- {
- // If the overlap extends beyond the region we are unmapping,
- // then we need to re-map the regions that are supposed to remain mapped.
- // This is necessary because Windows does not support partial view unmaps.
- // That is, you can only fully unmap a view that was previously mapped, you can't just unmap a chunck of it.
-
- ref var partialUnmapState = ref GetPartialUnmapState();
- ref var partialUnmapLock = ref partialUnmapState.PartialUnmapLock;
- partialUnmapLock.UpgradeToWriterLock();
-
- try
- {
- partialUnmapState.PartialUnmapsCount++;
-
- if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)overlap.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
-
- if (overlapStartsBefore)
- {
- ulong remapSize = startAddress - overlap.Start;
-
- MapViewInternal(sharedMemory, overlap.Value, (IntPtr)overlap.Start, (IntPtr)remapSize, updateProtection: false);
- RestoreRangeProtection(overlap.Start, remapSize);
- }
-
- if (overlapEndsAfter)
- {
- ulong overlappedSize = endAddress - overlap.Start;
- ulong remapBackingOffset = overlap.Value + overlappedSize;
- ulong remapAddress = overlap.Start + overlappedSize;
- ulong remapSize = overlap.End - endAddress;
-
- MapViewInternal(sharedMemory, remapBackingOffset, (IntPtr)remapAddress, (IntPtr)remapSize, updateProtection: false);
- RestoreRangeProtection(remapAddress, remapSize);
- }
- }
- finally
- {
- partialUnmapLock.DowngradeFromWriterLock();
- }
- }
- else if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)overlap.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
- }
- }
-
- CoalesceForUnmap(startAddress, unmapSize, owner);
-
- if (updateProtection)
- {
- UpdateProtection(startAddress, unmapSize, MemoryPermission.None);
- }
- }
-
- /// <summary>
- /// Coalesces adjacent placeholders after unmap.
- /// </summary>
- /// <param name="address">Address of the region that was unmapped</param>
- /// <param name="size">Size of the region that was unmapped in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- private void CoalesceForUnmap(ulong address, ulong size, MemoryBlock owner)
- {
- ulong endAddress = address + size;
- ulong blockAddress = (ulong)owner.Pointer;
- ulong blockEnd = blockAddress + owner.Size;
- int unmappedCount = 0;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(address);
-
- if (node == null)
- {
- // Nothing to coalesce if we have no overlaps.
- return;
- }
-
- RangeNode<ulong> predecessor = node.Predecessor;
- RangeNode<ulong> successor = null;
-
- for (; node != null; node = successor)
- {
- successor = node.Successor;
- var overlap = node;
-
- if (!IsMapped(overlap.Value))
- {
- address = Math.Min(address, overlap.Start);
- endAddress = Math.Max(endAddress, overlap.End);
-
- _mappings.Remove(overlap);
- unmappedCount++;
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
-
- if (predecessor != null && !IsMapped(predecessor.Value) && predecessor.Start >= blockAddress)
- {
- address = Math.Min(address, predecessor.Start);
-
- _mappings.Remove(predecessor);
- unmappedCount++;
- }
-
- if (successor != null && !IsMapped(successor.Value) && successor.End <= blockEnd)
- {
- endAddress = Math.Max(endAddress, successor.End);
-
- _mappings.Remove(successor);
- unmappedCount++;
- }
-
- _mappings.Add(new RangeNode<ulong>(address, endAddress, ulong.MaxValue));
- }
-
- if (unmappedCount > 1)
- {
- size = endAddress - address;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)size,
- AllocationType.Release | AllocationType.CoalescePlaceholders));
- }
- }
-
- /// <summary>
- /// Reprotects a region of memory that has been mapped.
- /// </summary>
- /// <param name="address">Address of the region to reprotect</param>
- /// <param name="size">Size of the region to reprotect in bytes</param>
- /// <param name="permission">New permissions</param>
- /// <returns>True if the reprotection was successful, false otherwise</returns>
- public bool ReprotectView(IntPtr address, IntPtr size, MemoryPermission permission)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- return ReprotectViewInternal(address, size, permission, false);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Reprotects a region of memory that has been mapped.
- /// </summary>
- /// <param name="address">Address of the region to reprotect</param>
- /// <param name="size">Size of the region to reprotect in bytes</param>
- /// <param name="permission">New permissions</param>
- /// <param name="throwOnError">Throw an exception instead of returning an error if the operation fails</param>
- /// <returns>True if the reprotection was successful or if <paramref name="throwOnError"/> is true, false otherwise</returns>
- /// <exception cref="WindowsApiException">If <paramref name="throwOnError"/> is true, it is thrown when the Windows API returns an error reprotecting the memory</exception>
- private bool ReprotectViewInternal(IntPtr address, IntPtr size, MemoryPermission permission, bool throwOnError)
- {
- ulong reprotectAddress = (ulong)address;
- ulong reprotectSize = (ulong)size;
- ulong endAddress = reprotectAddress + reprotectSize;
-
- bool success = true;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(reprotectAddress);
- RangeNode<ulong> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var overlap = node;
-
- ulong mappedAddress = overlap.Start;
- ulong mappedSize = overlap.End - overlap.Start;
-
- if (mappedAddress < reprotectAddress)
- {
- ulong delta = reprotectAddress - mappedAddress;
- mappedAddress = reprotectAddress;
- mappedSize -= delta;
- }
-
- ulong mappedEndAddress = mappedAddress + mappedSize;
-
- if (mappedEndAddress > endAddress)
- {
- ulong delta = mappedEndAddress - endAddress;
- mappedSize -= delta;
- }
-
- if (!WindowsApi.VirtualProtect((IntPtr)mappedAddress, (IntPtr)mappedSize, WindowsApi.GetProtection(permission), out _))
- {
- if (throwOnError)
- {
- throw new WindowsApiException("VirtualProtect");
- }
-
- success = false;
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
-
- UpdateProtection(reprotectAddress, reprotectSize, permission);
-
- return success;
- }
-
- /// <summary>
- /// Checks the result of a VirtualFree operation, throwing if needed.
- /// </summary>
- /// <param name="success">Operation result</param>
- /// <exception cref="WindowsApiException">Thrown if <paramref name="success"/> is false</exception>
- private static void CheckFreeResult(bool success)
- {
- if (!success)
- {
- throw new WindowsApiException("VirtualFree");
- }
- }
-
- /// <summary>
- /// Adds an offset to a backing offset. This will do nothing if the backing offset is the special "unmapped" value.
- /// </summary>
- /// <param name="backingOffset">Backing offset</param>
- /// <param name="offset">Offset to be added</param>
- /// <returns>Added offset or just <paramref name="backingOffset"/> if the region is unmapped</returns>
- private static ulong AddBackingOffset(ulong backingOffset, ulong offset)
- {
- if (backingOffset == ulong.MaxValue)
- {
- return backingOffset;
- }
-
- return backingOffset + offset;
- }
-
- /// <summary>
- /// Checks if a region is unmapped.
- /// </summary>
- /// <param name="backingOffset">Backing offset to check</param>
- /// <returns>True if the backing offset is the special "unmapped" value, false otherwise</returns>
- private static bool IsMapped(ulong backingOffset)
- {
- return backingOffset != ulong.MaxValue;
- }
-
- /// <summary>
- /// Adds a protection to the list of protections.
- /// </summary>
- /// <param name="address">Address of the protected region</param>
- /// <param name="size">Size of the protected region in bytes</param>
- /// <param name="permission">Memory permissions of the region</param>
- private void UpdateProtection(ulong address, ulong size, MemoryPermission permission)
- {
- ulong endAddress = address + size;
-
- lock (_protections)
- {
- RangeNode<MemoryPermission> node = _protections.GetNodeByKey(address);
-
- if (node != null &&
- node.Start <= address &&
- node.End >= endAddress &&
- node.Value == permission)
- {
- return;
- }
-
- RangeNode<MemoryPermission> successorNode;
-
- ulong startAddress = address;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var protection = node;
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
- MemoryPermission protPermission = protection.Value;
-
- _protections.Remove(protection);
-
- if (protPermission == permission)
- {
- if (startAddress > protAddress)
- {
- startAddress = protAddress;
- }
-
- if (endAddress < protEndAddress)
- {
- endAddress = protEndAddress;
- }
- }
- else
- {
- if (startAddress > protAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(protAddress, startAddress, protPermission));
- }
-
- if (endAddress < protEndAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(endAddress, protEndAddress, protPermission));
- }
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
-
- _protections.Add(new RangeNode<MemoryPermission>(startAddress, endAddress, permission));
- }
- }
-
- /// <summary>
- /// Removes protection from the list of protections.
- /// </summary>
- /// <param name="address">Address of the protected region</param>
- /// <param name="size">Size of the protected region in bytes</param>
- private void RemoveProtection(ulong address, ulong size)
- {
- ulong endAddress = address + size;
-
- lock (_protections)
- {
- RangeNode<MemoryPermission> node = _protections.GetNodeByKey(address);
- RangeNode<MemoryPermission> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var protection = node;
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
- MemoryPermission protPermission = protection.Value;
-
- _protections.Remove(protection);
-
- if (address > protAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(protAddress, address, protPermission));
- }
-
- if (endAddress < protEndAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(endAddress, protEndAddress, protPermission));
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
- }
-
- /// <summary>
- /// Restores the protection of a given memory region that was remapped, using the protections list.
- /// </summary>
- /// <param name="address">Address of the remapped region</param>
- /// <param name="size">Size of the remapped region in bytes</param>
- private void RestoreRangeProtection(ulong address, ulong size)
- {
- ulong endAddress = address + size;
- var overlaps = new RangeNode<MemoryPermission>[InitialOverlapsSize];
- int count;
-
- lock (_protections)
- {
- count = _protections.GetNodes(address, endAddress, ref overlaps);
- }
-
- ulong startAddress = address;
-
- for (int index = 0; index < count; index++)
- {
- var protection = overlaps[index];
-
- // If protection is R/W we don't need to reprotect as views are initially mapped as R/W.
- if (protection.Value == MemoryPermission.ReadAndWrite)
- {
- continue;
- }
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
-
- if (protAddress < address)
- {
- protAddress = address;
- }
-
- if (protEndAddress > endAddress)
- {
- protEndAddress = endAddress;
- }
-
- ReprotectViewInternal((IntPtr)protAddress, (IntPtr)(protEndAddress - protAddress), protection.Value, true);
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsApi.cs b/Ryujinx.Memory/WindowsShared/WindowsApi.cs
deleted file mode 100644
index 67e704ea..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsApi.cs
+++ /dev/null
@@ -1,101 +0,0 @@
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- static partial class WindowsApi
- {
- public static readonly IntPtr InvalidHandleValue = new IntPtr(-1);
- public static readonly IntPtr CurrentProcessHandle = new IntPtr(-1);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- public static partial IntPtr VirtualAlloc(
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType flAllocationType,
- MemoryProtection flProtect);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- public static partial IntPtr VirtualAlloc2(
- IntPtr process,
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType flAllocationType,
- MemoryProtection flProtect,
- IntPtr extendedParameters,
- ulong parameterCount);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool VirtualProtect(
- IntPtr lpAddress,
- IntPtr dwSize,
- MemoryProtection flNewProtect,
- out MemoryProtection lpflOldProtect);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool VirtualFree(IntPtr lpAddress, IntPtr dwSize, AllocationType dwFreeType);
-
- [LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "CreateFileMappingW")]
- public static partial IntPtr CreateFileMapping(
- IntPtr hFile,
- IntPtr lpFileMappingAttributes,
- FileMapProtection flProtect,
- uint dwMaximumSizeHigh,
- uint dwMaximumSizeLow,
- [MarshalAs(UnmanagedType.LPWStr)] string lpName);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool CloseHandle(IntPtr hObject);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- public static partial IntPtr MapViewOfFile(
- IntPtr hFileMappingObject,
- uint dwDesiredAccess,
- uint dwFileOffsetHigh,
- uint dwFileOffsetLow,
- IntPtr dwNumberOfBytesToMap);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- public static partial IntPtr MapViewOfFile3(
- IntPtr hFileMappingObject,
- IntPtr process,
- IntPtr baseAddress,
- ulong offset,
- IntPtr dwNumberOfBytesToMap,
- ulong allocationType,
- MemoryProtection dwDesiredAccess,
- IntPtr extendedParameters,
- ulong parameterCount);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool UnmapViewOfFile(IntPtr lpBaseAddress);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool UnmapViewOfFile2(IntPtr process, IntPtr lpBaseAddress, ulong unmapFlags);
-
- [LibraryImport("kernel32.dll")]
- public static partial uint GetLastError();
-
- [LibraryImport("kernel32.dll")]
- public static partial int GetCurrentThreadId();
-
- public static MemoryProtection GetProtection(MemoryPermission permission)
- {
- return permission switch
- {
- MemoryPermission.None => MemoryProtection.NoAccess,
- MemoryPermission.Read => MemoryProtection.ReadOnly,
- MemoryPermission.ReadAndWrite => MemoryProtection.ReadWrite,
- MemoryPermission.ReadAndExecute => MemoryProtection.ExecuteRead,
- MemoryPermission.ReadWriteExecute => MemoryProtection.ExecuteReadWrite,
- MemoryPermission.Execute => MemoryProtection.Execute,
- _ => throw new MemoryProtectionException(permission)
- };
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsApiException.cs b/Ryujinx.Memory/WindowsShared/WindowsApiException.cs
deleted file mode 100644
index 3140d705..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsApiException.cs
+++ /dev/null
@@ -1,24 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- class WindowsApiException : Exception
- {
- public WindowsApiException()
- {
- }
-
- public WindowsApiException(string functionName) : base(CreateMessage(functionName))
- {
- }
-
- public WindowsApiException(string functionName, Exception inner) : base(CreateMessage(functionName), inner)
- {
- }
-
- private static string CreateMessage(string functionName)
- {
- return $"{functionName} returned error code 0x{WindowsApi.GetLastError():X}.";
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsFlags.cs b/Ryujinx.Memory/WindowsShared/WindowsFlags.cs
deleted file mode 100644
index ca69cfe9..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsFlags.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- [Flags]
- enum AllocationType : uint
- {
- CoalescePlaceholders = 0x1,
- PreservePlaceholder = 0x2,
- Commit = 0x1000,
- Reserve = 0x2000,
- Decommit = 0x4000,
- ReplacePlaceholder = 0x4000,
- Release = 0x8000,
- ReservePlaceholder = 0x40000,
- Reset = 0x80000,
- Physical = 0x400000,
- TopDown = 0x100000,
- WriteWatch = 0x200000,
- LargePages = 0x20000000
- }
-
- [Flags]
- enum MemoryProtection : uint
- {
- NoAccess = 0x01,
- ReadOnly = 0x02,
- ReadWrite = 0x04,
- WriteCopy = 0x08,
- Execute = 0x10,
- ExecuteRead = 0x20,
- ExecuteReadWrite = 0x40,
- ExecuteWriteCopy = 0x80,
- GuardModifierflag = 0x100,
- NoCacheModifierflag = 0x200,
- WriteCombineModifierflag = 0x400
- }
-
- [Flags]
- enum FileMapProtection : uint
- {
- PageReadonly = 0x02,
- PageReadWrite = 0x04,
- PageWriteCopy = 0x08,
- PageExecuteRead = 0x20,
- PageExecuteReadWrite = 0x40,
- SectionCommit = 0x8000000,
- SectionImage = 0x1000000,
- SectionNoCache = 0x10000000,
- SectionReserve = 0x4000000
- }
-}