Daily update 2 on 20240228 by nitload youmu

2025-03-01 04:58:46 +08:00
parent 90d5f76511
commit f22862dfc4
983 changed files with 180004 additions and 0 deletions
@@ -0,0 +1,165 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="KeyMultiplexer.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. 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 in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+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 sealed class StringHashMultiplexer :  IHashMultiplexer<string>
+    {
+
+        private int _initCount, _remainedCount, _hashCache, _hashLast;
+        private string _source, _sourceLast;
+
+        public int RemainedMultiplexCount
+        {
+            get => _remainedCount;
+            set => _initCount = value;
+        }
+
+        public void CacheHash( string obj, int count )
+        {
+            _hashCache = ForceComputeHash( obj );
+            _initCount = count;
+            _remainedCount = _initCount;
+            _source = obj;
+        }
+
+        public bool Equals( string x, string y )
+        {
+            return x == y;
+        }
+
+        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
+                        .city_hash_simplify( cPtr, obj.Length );
+            }
+            return hash;
+        }
+
+        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 sealed class ConcurrentStringHashMultiplexer : IHashMultiplexer<string>, IDisposable
+    {
+
+        private bool disposedValue;
+        private readonly ThreadLocal<StringHashMultiplexer> _multiplexers = 
+            new( () => new StringHashMultiplexer() );
+
+        public int RemainedMultiplexCount
+        {
+            get => _multiplexers.Value.RemainedMultiplexCount;
+            set => _multiplexers.Value.RemainedMultiplexCount = value;
+        }
+
+        public void CacheHash( string obj, int count )
+        {
+            throw new NotImplementedException();
+        }
+
+        // ~ConcurrentStringHashMultiplexer()
+        // {
+        //     Dispose(disposing: false);
+        // }
+
+        public void Dispose()
+        {
+            Dispose( disposing: true );
+            GC.SuppressFinalize( this );
+        }
+
+        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
+                        .city_hash_simplify( cPtr, obj.Length );
+            }
+            return hash;
+        }
+
+        public int GetHashCode( string obj )
+        {
+            return _multiplexers.Value.GetHashCode( obj );
+        }
+
+        private void Dispose( bool disposing )
+        {
+            if( !disposedValue ) {
+                if( disposing ) {
+                    _multiplexers.Dispose();
+                }
+
+                disposedValue = true;
+            }
+        }
+
+    }
+}