daily update on 20240202 by nitload youmu, keep on writing xpree[D[D[D[D[De[C[C[Css compiler

2025-02-02 23:59:05 +08:00
parent e687473132
commit 4ee675669f
483 changed files with 86314 additions and 2712 deletions
@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading;
+
+namespace StgSharp.Collections
+{
+    public class StringHashMultiplexer : IEqualityComparer<string>, IStringHashMultiplexer
+    {
+        private string _source, _sourceLast;
+        private int _initCount, _remainedCount, _hashCache, _hashLast;
+
+        public int RemainedMultiplexCount
+        {
+            get => _remainedCount;
+            set => _initCount = value;
+        }
+
+        public bool Equals(string x, string y)
+        {
+            return x == y;
+        }
+
+        public int GetHashCode(string obj)
+        {
+            if (_remainedCount > 0 && ReferenceEquals(_source, obj))
+            {
+                _remainedCount--;
+                return _hashCache;
+            }
+            if (ReferenceEquals(_sourceLast, obj))
+            {
+                return _hashLast;
+            }
+            _sourceLast = obj;
+            _hashLast = ForceComputeHash(obj);
+            return _hashLast;
+        }
+
+        public void CacheHash(string obj, int count)
+        {
+            _hashCache = ForceComputeHash(obj);
+            _initCount = count;
+            _remainedCount = _initCount;
+            _source = obj;
+        }
+
+        public void ExtendCache(int count)
+        {
+            _initCount += count;
+            _remainedCount += count;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public unsafe int ForceComputeHash([NotNull] string obj)
+        {
+            int hash;
+            fixed (char* cPtr = obj.AsSpan())
+            {
+                hash = InternalIO.Intrinsic.cityhash_simplify(cPtr, obj.Length);
+            }
+            return hash;
+        }
+    }
+
+    public class ConcurrentStringHashMultiplexer : IEqualityComparer<string>, IStringHashMultiplexer
+    {
+        private readonly ThreadLocal<StringHashMultiplexer> multiplexers = 
+            new ();
+
+        public int RemainedMultiplexCount 
+        { 
+            get => multiplexers.Value.RemainedMultiplexCount; 
+            set => multiplexers.Value.RemainedMultiplexCount = value; 
+        }
+
+        public void CacheHash(string obj, int count)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool Equals(string x, string y)
+        {
+            return x == y;
+        }
+
+        public void ExtendCache(int count)
+        {
+            multiplexers.Value.ExtendCache(count);
+        }
+
+        public unsafe int ForceComputeHash([NotNull] string obj)
+        {
+            int hash;
+            fixed (char* cPtr = obj.AsSpan())
+            {
+                hash = InternalIO.Intrinsic.cityhash_simplify(cPtr, obj.Length);
+            }
+            return hash;
+        }
+
+        public int GetHashCode(string obj)
+        {
+            return multiplexers.Value.GetHashCode(obj);
+        }
+    }
+}