From 5e24340526544d1e33879025c19f4afd70bad39d Mon Sep 17 00:00:00 2001
From: yitter <yitter@126.com>
Date: Mon, 6 Jun 2022 22:48:35 +0800
Subject: [PATCH] auto commit

---
 C#.NET/source/Yitter.IdGenTest/Program.cs       |  2 +-
 C#.NET/source/Yitter.IdGenerator/YitIdHelper.cs | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/C#.NET/source/Yitter.IdGenTest/Program.cs b/C#.NET/source/Yitter.IdGenTest/Program.cs
index 6805258..099615f 100644
--- a/C#.NET/source/Yitter.IdGenTest/Program.cs
+++ b/C#.NET/source/Yitter.IdGenTest/Program.cs
@@ -11,7 +11,7 @@ namespace Yitter.OrgSystem.TestA
     class Program
     {
         // 测试参数（默认配置下，最佳性能是10W/s）
-        static int genIdCount = 2;//50000;  // 计算ID数量（如果要验证50W效率，请将TopOverCostCount设置为20000或适当增加SeqBitLength）
+        static int genIdCount = 2;//5000;  // 计算ID数量（如果要验证50W效率，请将TopOverCostCount设置为20000或适当增加SeqBitLength）
         static short method = 1; // 1-漂移算法，2-传统算法
 
 
diff --git a/C#.NET/source/Yitter.IdGenerator/YitIdHelper.cs b/C#.NET/source/Yitter.IdGenerator/YitIdHelper.cs
index 1127609..f53f6c7 100644
--- a/C#.NET/source/Yitter.IdGenerator/YitIdHelper.cs
+++ b/C#.NET/source/Yitter.IdGenerator/YitIdHelper.cs
@@ -41,9 +41,15 @@ namespace Yitter.IdGenerator
         {
             if (_IdGenInstance == null)
             {
-                _IdGenInstance = new DefaultIdGenerator(
-                    new IdGeneratorOptions() { WorkerId = 0 }
-                    );
+                lock (_IdGenInstance)
+                {
+                    if (_IdGenInstance == null)
+                    {
+                        _IdGenInstance = new DefaultIdGenerator(
+                            new IdGeneratorOptions() { WorkerId = 0 }
+                            );
+                    }
+                }
             }
 
             return _IdGenInstance.NewLong();