diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /Ryujinx.Memory/Tracking/VirtualRegion.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'Ryujinx.Memory/Tracking/VirtualRegion.cs')
| -rw-r--r-- | Ryujinx.Memory/Tracking/VirtualRegion.cs | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/Ryujinx.Memory/Tracking/VirtualRegion.cs b/Ryujinx.Memory/Tracking/VirtualRegion.cs deleted file mode 100644 index 9651426b..00000000 --- a/Ryujinx.Memory/Tracking/VirtualRegion.cs +++ /dev/null @@ -1,144 +0,0 @@ -using Ryujinx.Memory.Range; -using System.Collections.Generic; - -namespace Ryujinx.Memory.Tracking -{ - /// <summary> - /// A region of virtual memory. - /// </summary> - class VirtualRegion : AbstractRegion - { - public List<RegionHandle> Handles = new List<RegionHandle>(); - - private readonly MemoryTracking _tracking; - private MemoryPermission _lastPermission; - - public VirtualRegion(MemoryTracking tracking, ulong address, ulong size, MemoryPermission lastPermission = MemoryPermission.Invalid) : base(address, size) - { - _lastPermission = lastPermission; - _tracking = tracking; - } - - /// <inheritdoc/> - public override void Signal(ulong address, ulong size, bool write, int? exemptId) - { - IList<RegionHandle> handles = Handles; - - for (int i = 0; i < handles.Count; i++) - { - if (exemptId == null || handles[i].Id != exemptId.Value) - { - handles[i].Signal(address, size, write, ref handles); - } - } - - UpdateProtection(); - } - - /// <inheritdoc/> - public override void SignalPrecise(ulong address, ulong size, bool write, int? exemptId) - { - IList<RegionHandle> handles = Handles; - - bool allPrecise = true; - - for (int i = 0; i < handles.Count; i++) - { - if (exemptId == null || handles[i].Id != exemptId.Value) - { - allPrecise &= handles[i].SignalPrecise(address, size, write, ref handles); - } - } - - // Only update protection if a regular signal handler was called. - // This allows precise actions to skip reprotection costs if they want (they can still do it manually). - if (!allPrecise) - { - UpdateProtection(); - } - } - - /// <summary> - /// Signal that this region has been mapped or unmapped. - /// </summary> - /// <param name="mapped">True if the region has been mapped, false if unmapped</param> - public void SignalMappingChanged(bool mapped) - { - _lastPermission = MemoryPermission.Invalid; - - foreach (RegionHandle handle in Handles) - { - handle.SignalMappingChanged(mapped); - } - } - - /// <summary> - /// Gets the strictest permission that the child handles demand. Assumes that the tracking lock has been obtained. - /// </summary> - /// <returns>Protection level that this region demands</returns> - public MemoryPermission GetRequiredPermission() - { - // Start with Read/Write, each handle can strip off permissions as necessary. - // Assumes the tracking lock has already been obtained. - - MemoryPermission result = MemoryPermission.ReadAndWrite; - - foreach (var handle in Handles) - { - result &= handle.RequiredPermission; - if (result == 0) return result; - } - return result; - } - - /// <summary> - /// Updates the protection for this virtual region. - /// </summary> - public bool UpdateProtection() - { - MemoryPermission permission = GetRequiredPermission(); - - if (_lastPermission != permission) - { - _tracking.ProtectVirtualRegion(this, permission); - _lastPermission = permission; - - return true; - } - - return false; - } - - /// <summary> - /// Removes a handle from this virtual region. If there are no handles left, this virtual region is removed. - /// </summary> - /// <param name="handle">Handle to remove</param> - public void RemoveHandle(RegionHandle handle) - { - lock (_tracking.TrackingLock) - { - Handles.Remove(handle); - UpdateProtection(); - if (Handles.Count == 0) - { - _tracking.RemoveVirtual(this); - } - } - } - - public override INonOverlappingRange Split(ulong splitAddress) - { - VirtualRegion newRegion = new VirtualRegion(_tracking, splitAddress, EndAddress - splitAddress, _lastPermission); - Size = splitAddress - Address; - - // The new region inherits all of our parents. - newRegion.Handles = new List<RegionHandle>(Handles); - foreach (var parent in Handles) - { - parent.AddChild(newRegion); - } - - return newRegion; - } - } -} |
