1 files changed, 63 insertions, 0 deletions
diff --git a/Ryujinx.Memory/Tracking/AbstractRegion.cs b/Ryujinx.Memory/Tracking/AbstractRegion.cs
new file mode 100644
index 00000000..ffac439f
--- /dev/null
+++ b/Ryujinx.Memory/Tracking/AbstractRegion.cs
@@ -0,0 +1,63 @@
+using Ryujinx.Memory.Range;
+
+namespace Ryujinx.Memory.Tracking
+{
+    /// <summary>
+    /// A region of memory.
+    /// </summary>
+    abstract class AbstractRegion : INonOverlappingRange
+    {
+        /// <summary>
+        /// Base address.
+        /// </summary>
+        public ulong Address { get; }
+
+        /// <summary>
+        /// Size of the range in bytes.
+        /// </summary>
+        public ulong Size { get; protected set; }
+
+        /// <summary>
+        /// End address.
+        /// </summary>
+        public ulong EndAddress => Address + Size;
+
+        /// <summary>
+        /// Create a new region.
+        /// </summary>
+        /// <param name="address">Base address</param>
+        /// <param name="size">Size of the range</param>
+        protected AbstractRegion(ulong address, ulong size)
+        {
+            Address = address;
+            Size = size;
+        }
+
+        /// <summary>
+        /// Check if this range overlaps with another.
+        /// </summary>
+        /// <param name="address">Base address</param>
+        /// <param name="size">Size of the range</param>
+        /// <returns>True if overlapping, false otherwise</returns>
+        public bool OverlapsWith(ulong address, ulong size)
+        {
+            return Address < address + size && address < EndAddress;
+        }
+
+        /// <summary>
+        /// Signals to the handles that a memory event has occurred, and unprotects the region. Assumes that the tracking lock has been obtained.
+        /// </summary>
+        /// <param name="address">Address accessed</param>
+        /// <param name="size">Size of the region affected in bytes</param>
+        /// <param name="write">Whether the region was written to or read</param>
+        public abstract void Signal(ulong address, ulong size, bool write);
+
+        /// <summary>
+        /// Split this region into two, around the specified address. 
+        /// This region is updated to end at the split address, and a new region is created to represent past that point.
+        /// </summary>
+        /// <param name="splitAddress">Address to split the region around</param>
+        /// <returns>The second part of the split region, with start address at the given split.</returns>
+        public abstract INonOverlappingRange Split(ulong splitAddress);
+    }
+}