Initial commit

srcs/RobotNet10/RobotApp/Communication/Sick.SafetyScanners/DataStructures/ParsedPacketBuffer.cs

@@ -0,0 +1,37 @@
+namespace Sick.SafetyScanners.DataStructures;
+
+/// <summary>
+/// Represents a PacketBuffer with a parsed DatagramHeader
+/// Used for merging fragmented UDP packets
+/// </summary>
+public sealed class ParsedPacketBuffer
+{
+    /// <summary>
+    /// Gets the packet buffer
+    /// </summary>
+    public PacketBuffer PacketBuffer { get; init; }
+    
+    /// <summary>
+    /// Gets the parsed datagram header
+    /// </summary>
+    public DatagramHeader DatagramHeader { get; init; }
+    
+    public ParsedPacketBuffer(PacketBuffer packetBuffer, DatagramHeader datagramHeader)
+    {
+        PacketBuffer = packetBuffer ?? throw new ArgumentNullException(nameof(packetBuffer));
+        DatagramHeader = datagramHeader ?? throw new ArgumentNullException(nameof(datagramHeader));
+    }
+    
+    /// <summary>
+    /// Compares two ParsedPacketBuffer instances by fragment offset for sorting
+    /// </summary>
+    public static int CompareByOffset(ParsedPacketBuffer x, ParsedPacketBuffer y)
+    {
+        if (x == null && y == null) return 0;
+        if (x == null) return -1;
+        if (y == null) return 1;
+        
+        return x.DatagramHeader.FragmentOffset.CompareTo(y.DatagramHeader.FragmentOffset);
+    }
+}
+