some chore

StgSharp.Common/HighPerformance/Memory/L4.Prefetch.cs

@@ -2,8 +2,8 @@
 // -----------------------------------------------------------------------
 // file="L4.Prefetch"
 // Project: StgSharp
-// AuthorGroup: Nitload Space
-// Copyright (c) Nitload Space. All rights reserved.
+// AuthorGroup: Nitload
+// Copyright (c) Nitload. All rights reserved.
 //     
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
@@ -63,15 +63,19 @@ namespace StgSharp.HighPerformance.Memory
             {
                 ref CacheLinePrediction handle = ref span[i];
                 nuint address = handle.Address;
-                nuint mapPtr = _cacheLineAllocator.Allocate();
-                CacheLineHead* head = (CacheLineHead*)_entryAllocator.Allocate();
+                if (!TryGetEmptyLine(out int index)) {
+                    throw new OverflowException("L4 has no empty cache line.");
+                }
+                CacheLineHead* head = &_head[index];
 
 
                 // pre fetch them here
             }
         }
 
-        private partial bool TestHit(nuint origin)
+        private partial bool TestHit(
+                             nuint origin
+        )
         {
             if (_map.TryGet(origin, out nuint handle))
             {