Arrange code structure. Introduce dynamic scheduler and multi leader.

StgSharp.Common/Collections/BidirectionalDictionary.cs

@@ -32,7 +32,7 @@ using System.Collections.ObjectModel;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 
-namespace StgSharp.Commom.Collections
+namespace StgSharp.Collections
 {
     public sealed class BidirectionalDictionary<TFirst, TSecond> : IBidirectionalDictionary<TFirst, TSecond>
     {

StgSharp.Common/Collections/CapacityFixedBag.cs

@@ -1,6 +1,6 @@
 //-----------------------------------------------------------------------
 // -----------------------------------------------------------------------
-// file="CachePool"
+// file="CapacityFixedBag"
 // Project: StgSharp
 // AuthorGroup: Nitload
 // Copyright (c) Nitload. All rights reserved.
@@ -25,36 +25,57 @@
 //     
 // -----------------------------------------------------------------------
 // -----------------------------------------------------------------------
-using StgSharp.Graphics.OpenGL;
-
 using System;
 using System.Collections;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
-using System.Text;
 
-namespace StgSharp.Commom.Collections
+namespace StgSharp.Collections
 {
-    /*
-    public interface IPoolItem<TSignature>
+    public sealed class CapacityFixedBag<T> : IEnumerable<T>
     {
 
-        public int ID
+        private readonly T[] _buffer;
+
+        public CapacityFixedBag(int capacity)
         {
-            get;
-            init;
+            _buffer = new T[capacity];
+        }
+
+        public int Count { get; set; }
+
+        public int Capacity => _buffer.Length;
+
+        public void Add(T item)
+        {
+            if (Count >= _buffer.Length) {
+                throw new InvalidOperationException("Bag capacity exceeded.");
+            }
+            _buffer[Count] = item;
+            Count++;
+        }
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            for (int i = 0; i < Count; i++) {
+                yield return _buffer[i];
+            }
+        }
+
+        public void Remove(T item)
+        {
+            int index = Array.IndexOf(_buffer, item, 0, Count);
+            if (index >= 0)
+            {
+                _buffer[index] = _buffer[Count - 1];
+                _buffer[Count - 1] = default!;
+                Count--;
+            }
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
         }
 
     }
-
-    public class CacheIndexPool<TSignature, TItem> : IEnumerable<TItem>
-        where TItem: IPoolItem<TSignature>
-    {
-
-        public CacheIndexPool(
-                       Func<TSignature> 
- ) { }
-
-    }
-    /**/
 }

StgSharp.Common/Collections/CapacityFixedList.cs

@@ -28,11 +28,9 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Reflection;
 using System.Runtime.CompilerServices;
-using System.Text;
 
-namespace StgSharp.Commom.Collections
+namespace StgSharp.Collections
 {
     public static class CapacityFixedListBuilder
     {

StgSharp.Common/Collections/CapacityFixedStack.cs

@@ -31,7 +31,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Runtime.CompilerServices;
 
-namespace StgSharp.Commom.Collections
+namespace StgSharp.Collections
 {
     [CollectionBuilder(typeof(CapacityFixedStackBuilder), nameof(CapacityFixedStackBuilder.Create))]
     public class CapacityFixedStack<T> : IEnumerable<T>
@@ -72,13 +72,7 @@ namespace StgSharp.Commom.Collections
 
         public T Peek()
         {
-            if (_index >= 0)
-            {
-                return _values[_index];
-            } else
-            {
-                throw new InvalidOperationException("Stack is empty.");
-            }
+            return _index >= 0 ? _values[_index] : throw new InvalidOperationException("Stack is empty.");
         }
 
         public T Pop()
@@ -86,6 +80,7 @@ namespace StgSharp.Commom.Collections
             if (_index >= 0)
             {
                 T item = _values[_index];
+                _index--;
                 return item;
             } else
             {
@@ -95,13 +90,9 @@ namespace StgSharp.Commom.Collections
 
         public void Push(T item)
         {
-            if (_index < _values.Length - 1)
-            {
-                _values[++_index] = item;
-            } else
-            {
-                throw new InvalidOperationException("Stack is full.");
-            }
+            _values[++_index] = _index < _values.Length - 1 ?
+                                item :
+                                throw new InvalidOperationException("Stack is full.");
         }
 
         public void PushRange(ReadOnlySpan<T> span)
@@ -115,6 +106,21 @@ namespace StgSharp.Commom.Collections
             _index += span.Length;
         }
 
+        public  bool TryPop(out T value)
+        {
+            if (_index >= 0)
+            {
+                T item = _values[_index];
+                _index--;
+                value = item;
+                return true;
+            } else
+            {
+                value = default!;
+                return false;
+            }
+        }
+
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         internal Span<T> GetValueLayout()
         {

StgSharp.Common/Collections/IBidrirectionalDictionary.cs

@@ -30,7 +30,7 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 
-namespace StgSharp.Commom.Collections
+namespace StgSharp.Collections
 {
     public interface IBidirectionalDictionary<TFirst, TSecond> : IDictionary<TFirst, TSecond>
     {