From 6eb915c129fc90c6f4c82ae097dd6ffad5239efc Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Mon, 25 Jan 2021 14:28:30 +0800
Subject: +scripts

---
 .../Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 Client/Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs

(limited to 'Client/Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs')

diff --git a/Client/Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs b/Client/Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs
new file mode 100644
index 00000000..a2f4ec85
--- /dev/null
+++ b/Client/Assets/Scripts/XUtliPoolLib/SmallBufferPool.cs
@@ -0,0 +1,153 @@
+using System;
+
+namespace XUtliPoolLib
+{
+	public class SmallBufferPool<T>
+	{
+		public T[] buffer;
+
+		public BufferBlock[] blocks;
+
+		private BlockInfo[] blockInitRef;
+
+		public int allocBlockCount = 0;
+
+		public void Init(BlockInfo[] blockInit, int tSize)
+		{
+			this.blockInitRef = blockInit;
+			int num = 0;
+			int num2 = 0;
+			int i = 0;
+			int num3 = blockInit.Length;
+			while (i < num3)
+			{
+				BlockInfo blockInfo = blockInit[i];
+				num += blockInfo.count;
+				num2 += blockInfo.size * blockInfo.count;
+				i++;
+			}
+			this.buffer = new T[num2];
+			this.blocks = new BufferBlock[num];
+			BufferPoolMgr.TotalCount += num2 * tSize + num * 17;
+			int num4 = 0;
+			int num5 = 0;
+			int j = 0;
+			int num6 = blockInit.Length;
+			while (j < num6)
+			{
+				BlockInfo blockInfo2 = blockInit[j];
+				int k = 0;
+				int count = blockInfo2.count;
+				while (k < count)
+				{
+					BufferBlock bufferBlock = this.blocks[num4];
+					bufferBlock.offset = num5;
+					bufferBlock.size = 0;
+					bufferBlock.capacity = blockInfo2.size;
+					bufferBlock.blockIndex = num4;
+					bufferBlock.inUse = false;
+					this.blocks[num4] = bufferBlock;
+					num5 += blockInfo2.size;
+					num4++;
+					k++;
+				}
+				j++;
+			}
+		}
+
+		private bool InnerGetBlock(ref BufferBlock block, int size, int initSize)
+		{
+			int num = 0;
+			int i = 0;
+			int num2 = this.blockInitRef.Length;
+			while (i < num2)
+			{
+				BlockInfo blockInfo = this.blockInitRef[i];
+				bool flag = blockInfo.size >= size;
+				if (flag)
+				{
+					int j = num;
+					int num3 = num + blockInfo.count;
+					while (j < num3)
+					{
+						BufferBlock bufferBlock = this.blocks[j];
+						bool flag2 = !bufferBlock.inUse;
+						if (flag2)
+						{
+							bufferBlock.size = ((initSize < bufferBlock.capacity) ? initSize : bufferBlock.capacity);
+							bufferBlock.inUse = true;
+							this.blocks[j] = bufferBlock;
+							block = bufferBlock;
+							this.allocBlockCount++;
+							return true;
+						}
+						j++;
+					}
+				}
+				else
+				{
+					num += blockInfo.count;
+				}
+				i++;
+			}
+			block.blockIndex = -1;
+			block.capacity = size;
+			block.size = ((initSize < size) ? initSize : size);
+			block.inUse = true;
+			return false;
+		}
+
+		private void InnerGetBlock(ref SmallBuffer<T> sb, int size, int initSize)
+		{
+			BufferBlock bufferBlock = default(BufferBlock);
+			bool flag = this.InnerGetBlock(ref bufferBlock, size, initSize);
+			if (flag)
+			{
+				sb.Init(bufferBlock, this);
+				sb.DeepClear();
+			}
+			else
+			{
+				sb.Init(bufferBlock, this, new T[bufferBlock.capacity]);
+				XSingleton<XDebug>.singleton.AddWarningLog2("not enough buff size:{0}", new object[]
+				{
+					bufferBlock.capacity
+				});
+				BufferPoolMgr.AllocSize += bufferBlock.capacity;
+			}
+		}
+
+		public void GetBlock(ref SmallBuffer<T> sb, int size, int initSize = 0)
+		{
+			bool isInit = sb.IsInit;
+			if (!isInit)
+			{
+				this.InnerGetBlock(ref sb, size, initSize);
+			}
+		}
+
+		public void ExpandBlock(ref SmallBuffer<T> sb, int size)
+		{
+			this.InnerGetBlock(ref sb, size, 0);
+		}
+
+		public void ReturnBlock(ref SmallBuffer<T> sb)
+		{
+			BufferBlock bufferBlock = sb.bufferBlock;
+			bool inUse = bufferBlock.inUse;
+			if (inUse)
+			{
+				bufferBlock.size = 0;
+				bufferBlock.inUse = false;
+				bool flag = bufferBlock.blockIndex >= 0;
+				if (flag)
+				{
+					this.blocks[bufferBlock.blockIndex] = bufferBlock;
+					this.allocBlockCount--;
+				}
+				sb.debugName = "";
+				sb.UnInit();
+			}
+		}
+	}
+}
-- 
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