diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..dcc8922
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,220 @@
+# ClangFormatConfigureSource: 'clang-format-file://D:/development/c/daemon_agent/.clang-format'
+Language: Cpp
+AccessModifierOffset: -4
+InsertBraces: true
+AlignArrayOfStructures: Left
+AlignAfterOpenBracket: Align
+AlignConsecutiveMacros:
+  Enabled: true
+  AcrossEmptyLines: true
+  AcrossComments: true
+AlignConsecutiveAssignments:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: true
+  PadOperators: true
+  AlignCompound: true
+AlignConsecutiveBitFields: None
+AlignConsecutiveDeclarations:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: true
+  PadOperators: true
+  AlignCompound: true
+AlignEscapedNewlines: Left
+AlignOperands: DontAlign
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortEnumsOnASingleLine: false
+AllowShortBlocksOnASingleLine: Always
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: MultiLine
+AttributeMacros:
+  - __capability
+  - __unused
+BinPackArguments: true
+BinPackParameters: false
+BraceWrapping:
+  AfterCaseLabel: false
+  AfterClass: false
+  AfterControlStatement: Never
+  AfterEnum: false
+  AfterFunction: false
+  AfterNamespace: false
+  AfterObjCDeclaration: false
+  AfterStruct: false
+  AfterUnion: false
+  AfterExternBlock: false
+  BeforeCatch: true
+  BeforeElse: false
+  BeforeLambdaBody: false
+  BeforeWhile: false
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeConceptDeclarations: true
+BreakBeforeBraces: Custom
+BreakBeforeInheritanceComma: false
+BreakInheritanceList: BeforeColon
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit: 120
+CommentPragmas: '^ IWYU pragma:'
+CompactNamespaces: true
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DeriveLineEnding: true
+DerivePointerAlignment: false
+DisableFormat: false
+EmptyLineBeforeAccessModifier: LogicalBlock
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+StatementAttributeLikeMacros:
+  - Q_EMIT
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: '^<ext/.*\.h>'
+    Priority: 2
+    SortPriority: 0
+    CaseSensitive: false
+  - Regex: '^<.*\.h>'
+    Priority: 1
+    SortPriority: 0
+    CaseSensitive: false
+  - Regex: '^<.*'
+    Priority: 2
+    SortPriority: 0
+    CaseSensitive: false
+  - Regex: '.*'
+    Priority: 3
+    SortPriority: 0
+    CaseSensitive: false
+IncludeIsMainRegex: '([-_](test|unittest))?$'
+IncludeIsMainSourceRegex: ''
+IndentCaseLabels: true
+IndentCaseBlocks: false
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentExternBlock: AfterExternBlock
+IndentRequiresClause: false
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Never
+ObjCBlockIndentWidth: 4
+ObjCBreakBeforeNestedBlockParam: true
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 1000
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 140
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PenaltyIndentedWhitespace: 0
+PointerAlignment: Right
+RawStringFormats:
+  - Language: Cpp
+    Delimiters:
+      - cc
+      - CC
+      - cpp
+      - Cpp
+      - CPP
+      - 'c++'
+      - 'C++'
+    CanonicalDelimiter: ''
+    BasedOnStyle: google
+  - Language: TextProto
+    Delimiters:
+      - pb
+      - PB
+      - proto
+      - PROTO
+    EnclosingFunctions:
+      - EqualsProto
+      - EquivToProto
+      - PARSE_PARTIAL_TEXT_PROTO
+      - PARSE_TEST_PROTO
+      - PARSE_TEXT_PROTO
+      - ParseTextOrDie
+      - ParseTextProtoOrDie
+      - ParseTestProto
+      - ParsePartialTestProto
+    CanonicalDelimiter: ''
+    BasedOnStyle: google
+ReflowComments: false
+SortIncludes: Never
+SortJavaStaticImport: Before
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: true
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 4
+SpacesInAngles: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: false
+SpacesInCStyleCastParentheses: false
+SpacesInLineCommentPrefix:
+  Minimum: 1
+  Maximum: -1
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpaceBeforeSquareBrackets: false
+BitFieldColonSpacing: Both
+Standard: Auto
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth: 4
+UseCRLF: false
+UseTab: Never
+SeparateDefinitionBlocks: Always
+WhitespaceSensitiveMacros:
+  - STRINGIZE
+  - PP_STRINGIZE
+  - BOOST_PP_STRINGIZE
+  - NS_SWIFT_NAME
+  - CF_SWIFT_NAME
+TypenameMacros:
+  - CONFIG_ITEM
+  - PCONFIG_ITEM
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f14b74d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+################################################################################
+# 此 .gitignore 文件已由 Microsoft(R) Visual Studio 自动创建。
+################################################################################
+
+/.vs
diff --git a/NetTunnelApp/App.xaml b/NetTunnelApp/App.xaml
new file mode 100644
index 0000000..65800f4
--- /dev/null
+++ b/NetTunnelApp/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="NetTunnelApp.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:NetTunnelApp"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+
+    </Application.Resources>
+</Application>
\ No newline at end of file
diff --git a/NetTunnelApp/App.xaml.cs b/NetTunnelApp/App.xaml.cs
new file mode 100644
index 0000000..1859602
--- /dev/null
+++ b/NetTunnelApp/App.xaml.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace NetTunnelApp
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}
\ No newline at end of file
diff --git a/NetTunnelApp/AssemblyInfo.cs b/NetTunnelApp/AssemblyInfo.cs
new file mode 100644
index 0000000..4a05c7d
--- /dev/null
+++ b/NetTunnelApp/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+    //(used if a resource is not found in the page,
+    // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+    //(used if a resource is not found in the page,
+    // app, or any theme specific resource dictionaries)
+)]
\ No newline at end of file
diff --git a/NetTunnelApp/MainWindow.xaml b/NetTunnelApp/MainWindow.xaml
new file mode 100644
index 0000000..0461ad9
--- /dev/null
+++ b/NetTunnelApp/MainWindow.xaml
@@ -0,0 +1,13 @@
+<Window x:Class="NetTunnelApp.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:NetTunnelApp"
+        mc:Ignorable="d"
+        Title="NetTunnel" Height="450" Width="800" WindowStyle="ThreeDBorderWindow">
+    <Grid>
+        <Button Content="Button" HorizontalAlignment="Left" Margin="166,170,0,0" VerticalAlignment="Top" Height="47"
+                Width="96" Click="Button_Click" />
+    </Grid>
+</Window>
\ No newline at end of file
diff --git a/NetTunnelApp/MainWindow.xaml.cs b/NetTunnelApp/MainWindow.xaml.cs
new file mode 100644
index 0000000..9e8a78e
--- /dev/null
+++ b/NetTunnelApp/MainWindow.xaml.cs
@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using System.Runtime.InteropServices;
+
+namespace NetTunnelApp
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            string path = System.Environment.CurrentDirectory + "\\tunnelsdk.log";
+            NetTunnelLib.InitTunnelSDKLog(path, LogLevel.LOG_DEBUG);
+            //IntPtr msg = TestMessage();
+            //MessageBox.Show(Marshal.PtrToStringAnsi(msg));
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            MessageBox.Show(NetTunnelLib.SetProtocolEncryptType(ProtoCryptoType.CRYPTO_NONE, "").ToString());
+        }
+    }
+}
\ No newline at end of file
diff --git a/NetTunnelApp/NetTunnelApp.csproj b/NetTunnelApp/NetTunnelApp.csproj
new file mode 100644
index 0000000..6a0ca0b
--- /dev/null
+++ b/NetTunnelApp/NetTunnelApp.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net6.0-windows</TargetFramework>
+        <Nullable>enable</Nullable>
+        <UseWPF>true</UseWPF>
+        <BaseOutputPath>C:\Users\HuangXin\Documents\development\visual_studio\NetworkTunnel\x64</BaseOutputPath>
+    </PropertyGroup>
+
+</Project>
\ No newline at end of file
diff --git a/NetTunnelApp/NetTunnelApp.csproj.user b/NetTunnelApp/NetTunnelApp.csproj.user
new file mode 100644
index 0000000..644b0a6
--- /dev/null
+++ b/NetTunnelApp/NetTunnelApp.csproj.user
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+  <ItemGroup>
+    <ApplicationDefinition Update="App.xaml">
+      <SubType>Designer</SubType>
+    </ApplicationDefinition>
+  </ItemGroup>
+  <ItemGroup>
+    <Page Update="MainWindow.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/NetTunnelApp/NetTunnelLib.cs b/NetTunnelApp/NetTunnelLib.cs
new file mode 100644
index 0000000..6728833
--- /dev/null
+++ b/NetTunnelApp/NetTunnelLib.cs
@@ -0,0 +1,42 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace NetTunnelApp;
+
+public enum ProtoCryptoType
+{
+    CRYPTO_NONE = 0,
+    CRYPTO_BASE64 = 1,
+    CRYPTO_AES128 = 2,
+    CRYPTO_3DES = 3,
+    CRYPTO_AES256 = 4
+}
+
+public enum LogLevel
+{
+    LOG_DEBUG = 0,
+    LOG_INFO = 1,
+    LOG_WARN = 2,
+    LOG_ERROR = 3
+}
+
+public class NetTunnelLib
+{
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    public static extern int CreateTunnel(String lpszMsg);
+
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    internal static extern IntPtr TestMessage();
+
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    internal static extern Int32 Add(int a, int b);
+
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    public static extern int TunnelSDKInitEnv();
+
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    public static extern int SetProtocolEncryptType(ProtoCryptoType type, String pProKey);
+
+    [DllImport("NetTunnelSDK.dll", CallingConvention = CallingConvention.Cdecl)]
+    public static extern void InitTunnelSDKLog(String pProKey, LogLevel level);
+}
\ No newline at end of file
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs b/NetTunnelApp/obj/Debug/net6.0-windows/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs
new file mode 100644
index 0000000..ed92695
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v6.0", FrameworkDisplayName = ".NET 6.0")]
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/App.g.cs b/NetTunnelApp/obj/Debug/net6.0-windows/App.g.cs
new file mode 100644
index 0000000..28bb1c2
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/App.g.cs
@@ -0,0 +1,71 @@
+#pragma checksum "..\..\..\App.xaml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "A1E62818D7EBB48AC5E8E76F6BAC2BCA050E3CFF"
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本:4.0.30319.42000
+//
+//     对此文件的更改可能会导致不正确的行为，并且如果
+//     重新生成代码，这些更改将会丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using NetTunnelApp;
+using System;
+using System.Diagnostics;
+using System.Windows;
+using System.Windows.Automation;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Controls.Ribbon;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Markup;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Effects;
+using System.Windows.Media.Imaging;
+using System.Windows.Media.Media3D;
+using System.Windows.Media.TextFormatting;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using System.Windows.Shell;
+
+
+namespace NetTunnelApp {
+    
+    
+    /// <summary>
+    /// App
+    /// </summary>
+    public partial class App : System.Windows.Application {
+        
+        /// <summary>
+        /// InitializeComponent
+        /// </summary>
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public void InitializeComponent() {
+            
+            #line 5 "..\..\..\App.xaml"
+            this.StartupUri = new System.Uri("MainWindow.xaml", System.UriKind.Relative);
+            
+            #line default
+            #line hidden
+        }
+        
+        /// <summary>
+        /// Application Entry Point.
+        /// </summary>
+        [System.STAThreadAttribute()]
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public static void Main() {
+            NetTunnelApp.App app = new NetTunnelApp.App();
+            app.InitializeComponent();
+            app.Run();
+        }
+    }
+}
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/App.g.i.cs b/NetTunnelApp/obj/Debug/net6.0-windows/App.g.i.cs
new file mode 100644
index 0000000..28bb1c2
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/App.g.i.cs
@@ -0,0 +1,71 @@
+#pragma checksum "..\..\..\App.xaml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "A1E62818D7EBB48AC5E8E76F6BAC2BCA050E3CFF"
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本:4.0.30319.42000
+//
+//     对此文件的更改可能会导致不正确的行为，并且如果
+//     重新生成代码，这些更改将会丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using NetTunnelApp;
+using System;
+using System.Diagnostics;
+using System.Windows;
+using System.Windows.Automation;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Controls.Ribbon;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Markup;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Effects;
+using System.Windows.Media.Imaging;
+using System.Windows.Media.Media3D;
+using System.Windows.Media.TextFormatting;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using System.Windows.Shell;
+
+
+namespace NetTunnelApp {
+    
+    
+    /// <summary>
+    /// App
+    /// </summary>
+    public partial class App : System.Windows.Application {
+        
+        /// <summary>
+        /// InitializeComponent
+        /// </summary>
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public void InitializeComponent() {
+            
+            #line 5 "..\..\..\App.xaml"
+            this.StartupUri = new System.Uri("MainWindow.xaml", System.UriKind.Relative);
+            
+            #line default
+            #line hidden
+        }
+        
+        /// <summary>
+        /// Application Entry Point.
+        /// </summary>
+        [System.STAThreadAttribute()]
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public static void Main() {
+            NetTunnelApp.App app = new NetTunnelApp.App();
+            app.InitializeComponent();
+            app.Run();
+        }
+    }
+}
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.cs b/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.cs
new file mode 100644
index 0000000..99e6077
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.cs
@@ -0,0 +1,87 @@
+#pragma checksum "..\..\..\MainWindow.xaml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "0F29C786CDED2A9EB262D4A59AC422C522507B21"
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本:4.0.30319.42000
+//
+//     对此文件的更改可能会导致不正确的行为，并且如果
+//     重新生成代码，这些更改将会丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using NetTunnelApp;
+using System;
+using System.Diagnostics;
+using System.Windows;
+using System.Windows.Automation;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Controls.Ribbon;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Markup;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Effects;
+using System.Windows.Media.Imaging;
+using System.Windows.Media.Media3D;
+using System.Windows.Media.TextFormatting;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using System.Windows.Shell;
+
+
+namespace NetTunnelApp {
+    
+    
+    /// <summary>
+    /// MainWindow
+    /// </summary>
+    public partial class MainWindow : System.Windows.Window, System.Windows.Markup.IComponentConnector {
+        
+        private bool _contentLoaded;
+        
+        /// <summary>
+        /// InitializeComponent
+        /// </summary>
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public void InitializeComponent() {
+            if (_contentLoaded) {
+                return;
+            }
+            _contentLoaded = true;
+            System.Uri resourceLocater = new System.Uri("/NetTunnelApp;component/mainwindow.xaml", System.UriKind.Relative);
+            
+            #line 1 "..\..\..\MainWindow.xaml"
+            System.Windows.Application.LoadComponent(this, resourceLocater);
+            
+            #line default
+            #line hidden
+        }
+        
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes")]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity")]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
+        void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target) {
+            switch (connectionId)
+            {
+            case 1:
+            
+            #line 11 "..\..\..\MainWindow.xaml"
+            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.Button_Click);
+            
+            #line default
+            #line hidden
+            return;
+            }
+            this._contentLoaded = true;
+        }
+    }
+}
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.i.cs b/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.i.cs
new file mode 100644
index 0000000..99e6077
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/MainWindow.g.i.cs
@@ -0,0 +1,87 @@
+#pragma checksum "..\..\..\MainWindow.xaml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "0F29C786CDED2A9EB262D4A59AC422C522507B21"
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本:4.0.30319.42000
+//
+//     对此文件的更改可能会导致不正确的行为，并且如果
+//     重新生成代码，这些更改将会丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using NetTunnelApp;
+using System;
+using System.Diagnostics;
+using System.Windows;
+using System.Windows.Automation;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Controls.Ribbon;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Markup;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Effects;
+using System.Windows.Media.Imaging;
+using System.Windows.Media.Media3D;
+using System.Windows.Media.TextFormatting;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using System.Windows.Shell;
+
+
+namespace NetTunnelApp {
+    
+    
+    /// <summary>
+    /// MainWindow
+    /// </summary>
+    public partial class MainWindow : System.Windows.Window, System.Windows.Markup.IComponentConnector {
+        
+        private bool _contentLoaded;
+        
+        /// <summary>
+        /// InitializeComponent
+        /// </summary>
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        public void InitializeComponent() {
+            if (_contentLoaded) {
+                return;
+            }
+            _contentLoaded = true;
+            System.Uri resourceLocater = new System.Uri("/NetTunnelApp;component/mainwindow.xaml", System.UriKind.Relative);
+            
+            #line 1 "..\..\..\MainWindow.xaml"
+            System.Windows.Application.LoadComponent(this, resourceLocater);
+            
+            #line default
+            #line hidden
+        }
+        
+        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "7.0.7.0")]
+        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes")]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity")]
+        [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
+        void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target) {
+            switch (connectionId)
+            {
+            case 1:
+            
+            #line 11 "..\..\..\MainWindow.xaml"
+            ((System.Windows.Controls.Button)(target)).Click += new System.Windows.RoutedEventHandler(this.Button_Click);
+            
+            #line default
+            #line hidden
+            return;
+            }
+            this._contentLoaded = true;
+        }
+    }
+}
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfo.cs b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfo.cs
new file mode 100644
index 0000000..fdad405
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfo.cs
@@ -0,0 +1,25 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本:4.0.30319.42000
+//
+//     对此文件的更改可能会导致不正确的行为，并且如果
+//     重新生成代码，这些更改将会丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("NetTunnelApp")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyProductAttribute("NetTunnelApp")]
+[assembly: System.Reflection.AssemblyTitleAttribute("NetTunnelApp")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+[assembly: System.Runtime.Versioning.TargetPlatformAttribute("Windows7.0")]
+[assembly: System.Runtime.Versioning.SupportedOSPlatformAttribute("Windows7.0")]
+
+// 由 MSBuild WriteCodeFragment 类生成。
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfoInputs.cache b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfoInputs.cache
new file mode 100644
index 0000000..93aea0a
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.AssemblyInfoInputs.cache
@@ -0,0 +1 @@
+a5e6a2f249466fbbff4e1ac5541eb864cdca1db1
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.GeneratedMSBuildEditorConfig.editorconfig b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.GeneratedMSBuildEditorConfig.editorconfig
new file mode 100644
index 0000000..486bc16
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.GeneratedMSBuildEditorConfig.editorconfig
@@ -0,0 +1,11 @@
+is_global = true
+build_property.TargetFramework = net6.0-windows
+build_property.TargetPlatformMinVersion = 7.0
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = NetTunnelApp
+build_property.ProjectDir = C:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.csproj.AssemblyReference.cache b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.csproj.AssemblyReference.cache
new file mode 100644
index 0000000..30f7c32
Binary files /dev/null and b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp.csproj.AssemblyReference.cache differ
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.cache b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.cache
new file mode 100644
index 0000000..901f8f5
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.cache
@@ -0,0 +1,20 @@
+NetTunnelApp
+
+
+winexe
+C#
+.cs
+C:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\obj\Debug\net6.0-windows\
+NetTunnelApp
+none
+false
+TRACE;DEBUG;NET;NET6_0;NETCOREAPP
+C:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\App.xaml
+11407045341
+
+4-1392306876
+1941675070116
+MainWindow.xaml;
+
+True
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.cache b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.cache
new file mode 100644
index 0000000..288e2c2
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.cache
@@ -0,0 +1,20 @@
+NetTunnelApp
+1.0.0.0
+
+winexe
+C#
+.cs
+C:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\obj\Debug\net6.0-windows\
+NetTunnelApp
+none
+false
+TRACE;DEBUG;NET;NET6_0;NETCOREAPP
+C:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\App.xaml
+11407045341
+
+6745177533
+1941675070116
+MainWindow.xaml;
+
+True
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.lref b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.lref
new file mode 100644
index 0000000..fab1e6e
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.i.lref
@@ -0,0 +1,4 @@
+
+
+FC:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\MainWindow.xaml;;
+
diff --git a/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.lref b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.lref
new file mode 100644
index 0000000..fab1e6e
--- /dev/null
+++ b/NetTunnelApp/obj/Debug/net6.0-windows/NetTunnelApp_MarkupCompile.lref
@@ -0,0 +1,4 @@
+
+
+FC:\Users\HuangXin\Documents\development\visual_studio\tunnel_windows\NetTunnelApp\MainWindow.xaml;;
+
diff --git a/NetTunnelDemo/NetTunnelDemo.cpp b/NetTunnelDemo/NetTunnelDemo.cpp
new file mode 100644
index 0000000..9bd4055
--- /dev/null
+++ b/NetTunnelDemo/NetTunnelDemo.cpp
@@ -0,0 +1,22 @@
+// NetTunnelDemo.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
+//
+
+#include <iostream>
+#include "../NetTunnelSDK/tunnel.h"
+
+int main()
+{
+    std::cout << "Hello World!\n";
+    std::cout << TunnelSDKInitEnv();
+}
+
+// 运行程序: Ctrl + F5 或调试 >“开始执行(不调试)”菜单
+// 调试程序: F5 或调试 >“开始调试”菜单
+
+// 入门使用技巧: 
+//   1. 使用解决方案资源管理器窗口添加/管理文件
+//   2. 使用团队资源管理器窗口连接到源代码管理
+//   3. 使用输出窗口查看生成输出和其他消息
+//   4. 使用错误列表窗口查看错误
+//   5. 转到“项目”>“添加新项”以创建新的代码文件，或转到“项目”>“添加现有项”以将现有代码文件添加到项目
+//   6. 将来，若要再次打开此项目，请转到“文件”>“打开”>“项目”并选择 .sln 文件
diff --git a/NetTunnelDemo/NetTunnelDemo.vcxproj b/NetTunnelDemo/NetTunnelDemo.vcxproj
new file mode 100644
index 0000000..4ab4736
--- /dev/null
+++ b/NetTunnelDemo/NetTunnelDemo.vcxproj
@@ -0,0 +1,140 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{7cca5020-1e98-4aef-99a4-34c05592cfe1}</ProjectGuid>
+    <RootNamespace>NetTunnelDemo</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="NetTunnelDemo.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\NetTunnelSDK\NetTunnelSDK.vcxproj">
+      <Project>{42aacc62-a37c-4b33-a687-d13c472cc980}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/NetTunnelDemo/NetTunnelDemo.vcxproj.filters b/NetTunnelDemo/NetTunnelDemo.vcxproj.filters
new file mode 100644
index 0000000..de548cd
--- /dev/null
+++ b/NetTunnelDemo/NetTunnelDemo.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="NetTunnelDemo.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/NetTunnelDemo/NetTunnelDemo.vcxproj.user b/NetTunnelDemo/NetTunnelDemo.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/NetTunnelDemo/NetTunnelDemo.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file
diff --git a/NetTunnelSDK/NetTunnelSDK.vcxproj b/NetTunnelSDK/NetTunnelSDK.vcxproj
new file mode 100644
index 0000000..4196f40
--- /dev/null
+++ b/NetTunnelSDK/NetTunnelSDK.vcxproj
@@ -0,0 +1,186 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props" Condition="Exists('..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{42aacc62-a37c-4b33-a687-d13c472cc980}</ProjectGuid>
+    <RootNamespace>NetTunnelSDK</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;NETTUNNELSDK_EXPORTS;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableUAC>false</EnableUAC>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;NETTUNNELSDK_EXPORTS;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableUAC>false</EnableUAC>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;NETTUNNELSDK_EXPORTS;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableUAC>false</EnableUAC>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy $(OutDir)$(TargetName)$(TargetExt) $(OutDir)net6.0-windows /y
+copy $(OutDir)fmtd.dll $(OutDir)net6.0-windows /y</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;NETTUNNELSDK_EXPORTS;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableUAC>false</EnableUAC>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="framework.h" />
+    <ClInclude Include="logs\fmtlog-inl.h" />
+    <ClInclude Include="logs\fmtlog.h" />
+    <ClInclude Include="misc.h" />
+    <ClInclude Include="pch.h" />
+    <ClInclude Include="tunnel.h" />
+    <ClInclude Include="usrerr.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="dllmain.cpp" />
+    <ClCompile Include="logs\fmtlog.cc">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="pch.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="tunnel.cpp" />
+    <ClCompile Include="usrerr.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+    <Import Project="..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets" Condition="Exists('..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>这台计算机上缺少此项目引用的 NuGet 程序包。使用“NuGet 程序包还原”可下载这些程序包。有关更多信息，请参见 http://go.microsoft.com/fwlink/?LinkID=322105。缺少的文件是 {0}。</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props'))" />
+    <Error Condition="!Exists('..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0\build\native\vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets'))" />
+  </Target>
+</Project>
\ No newline at end of file
diff --git a/NetTunnelSDK/NetTunnelSDK.vcxproj.filters b/NetTunnelSDK/NetTunnelSDK.vcxproj.filters
new file mode 100644
index 0000000..4211912
--- /dev/null
+++ b/NetTunnelSDK/NetTunnelSDK.vcxproj.filters
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="头文件\tunnel">
+      <UniqueIdentifier>{b280dda3-87fc-4338-9b3d-2d3aac834993}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="源文件\tunnel">
+      <UniqueIdentifier>{887650f6-e4f9-49ee-9314-9e4244cd63a5}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="头文件\log">
+      <UniqueIdentifier>{eebf9d26-4829-4879-8a09-a84ab879607e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="源文件\logs">
+      <UniqueIdentifier>{879be0d2-53a0-4003-bdb8-449de0caad96}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="framework.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="pch.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="tunnel.h">
+      <Filter>头文件\tunnel</Filter>
+    </ClInclude>
+    <ClInclude Include="logs\fmtlog.h">
+      <Filter>头文件\log</Filter>
+    </ClInclude>
+    <ClInclude Include="logs\fmtlog-inl.h">
+      <Filter>头文件\log</Filter>
+    </ClInclude>
+    <ClInclude Include="usrerr.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="misc.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="dllmain.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="pch.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="tunnel.cpp">
+      <Filter>源文件\tunnel</Filter>
+    </ClCompile>
+    <ClCompile Include="logs\fmtlog.cc">
+      <Filter>源文件\logs</Filter>
+    </ClCompile>
+    <ClCompile Include="usrerr.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/NetTunnelSDK/NetTunnelSDK.vcxproj.user b/NetTunnelSDK/NetTunnelSDK.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/NetTunnelSDK/NetTunnelSDK.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file
diff --git a/NetTunnelSDK/dllmain.cpp b/NetTunnelSDK/dllmain.cpp
new file mode 100644
index 0000000..57bdffb
--- /dev/null
+++ b/NetTunnelSDK/dllmain.cpp
@@ -0,0 +1,16 @@
+// dllmain.cpp : 定义 DLL 应用程序的入口点。
+#include "pch.h"
+
+#include "logs/fmtlog.h"
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
+    switch (ul_reason_for_call) {
+        case DLL_PROCESS_ATTACH:            
+        case DLL_THREAD_ATTACH:
+        case DLL_THREAD_DETACH:
+        case DLL_PROCESS_DETACH:
+            fmtlog::poll();
+            break;
+    }
+    return TRUE;
+}
diff --git a/NetTunnelSDK/framework.h b/NetTunnelSDK/framework.h
new file mode 100644
index 0000000..cce0bb0
--- /dev/null
+++ b/NetTunnelSDK/framework.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN    // 从 Windows 头文件中排除极少使用的内容
+// Windows 头文件
+#include <windows.h>
\ No newline at end of file
diff --git a/NetTunnelSDK/logs/fmtlog-inl.h b/NetTunnelSDK/logs/fmtlog-inl.h
new file mode 100644
index 0000000..ad8b1bf
--- /dev/null
+++ b/NetTunnelSDK/logs/fmtlog-inl.h
@@ -0,0 +1,636 @@
+/*
+MIT License
+
+Copyright (c) 2021 Meng Rao <raomeng1@gmail.com>
+
+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.
+*/
+#pragma warning( disable : 4996)
+#include "fmtlog.h"
+#include <mutex>
+#include <thread>
+#include <limits>
+#include <ios>
+
+#ifdef _WIN32
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <windows.h>
+#include <processthreadsapi.h>
+#else
+#include <sys/syscall.h>
+#include <unistd.h>
+#endif
+
+namespace {
+void fmtlogEmptyFun(void*) {
+}
+} // namespace
+
+template<int ___ = 0>
+class fmtlogDetailT
+{
+public:
+  // https://github.com/MengRao/str
+  template<size_t SIZE>
+  class Str
+  {
+  public:
+    static const int Size = SIZE;
+    char s[SIZE];
+
+    Str() {}
+    Str(const char* p) { *this = *(const Str<SIZE>*)p; }
+
+    char& operator[](int i) { return s[i]; }
+    char operator[](int i) const { return s[i]; }
+
+    template<typename T>
+    void fromi(T num) {
+      if constexpr (Size & 1) {
+        s[Size - 1] = '0' + (num % 10);
+        num /= 10;
+      }
+      switch (Size & -2) {
+        case 18: *(uint16_t*)(s + 16) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 16: *(uint16_t*)(s + 14) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 14: *(uint16_t*)(s + 12) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 12: *(uint16_t*)(s + 10) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 10: *(uint16_t*)(s + 8) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 8: *(uint16_t*)(s + 6) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 6: *(uint16_t*)(s + 4) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 4: *(uint16_t*)(s + 2) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+        case 2: *(uint16_t*)(s + 0) = *(uint16_t*)(digit_pairs + ((num % 100) << 1)); num /= 100;
+      }
+    }
+
+    static constexpr const char* digit_pairs = "00010203040506070809"
+                                               "10111213141516171819"
+                                               "20212223242526272829"
+                                               "30313233343536373839"
+                                               "40414243444546474849"
+                                               "50515253545556575859"
+                                               "60616263646566676869"
+                                               "70717273747576777879"
+                                               "80818283848586878889"
+                                               "90919293949596979899";
+  };
+
+  fmtlogDetailT()
+    : flushDelay(3000000000) {
+    args.reserve(4096);
+    args.resize(parttenArgSize);
+
+    fmtlogWrapper<>::impl.init();
+    resetDate();
+    fmtlog::setLogFile(stdout);
+    setHeaderPattern("{HMSf} {s:<16} {l}[{t:<6}] ");
+    logInfos.reserve(32);
+    bgLogInfos.reserve(128);
+    bgLogInfos.emplace_back(nullptr, nullptr, fmtlog::DBG, fmt::string_view());
+    bgLogInfos.emplace_back(nullptr, nullptr, fmtlog::INF, fmt::string_view());
+    bgLogInfos.emplace_back(nullptr, nullptr, fmtlog::WRN, fmt::string_view());
+    bgLogInfos.emplace_back(nullptr, nullptr, fmtlog::ERR, fmt::string_view());
+    threadBuffers.reserve(8);
+    bgThreadBuffers.reserve(8);
+    memset(membuf.data(), 0, membuf.capacity());
+  }
+
+  ~fmtlogDetailT() {
+    stopPollingThread();
+    poll(true);
+    closeLogFile();
+  }
+
+  void setHeaderPattern(const char* pattern) {
+    if (shouldDeallocateHeader) delete[] headerPattern.data();
+    using namespace fmt::literals;
+    for (int i = 0; i < parttenArgSize; i++) {
+      reorderIdx[i] = parttenArgSize - 1;
+    }
+    headerPattern = fmtlog::unNameFormat<true>(
+      pattern, reorderIdx, "a"_a = "", "b"_a = "", "C"_a = "", "Y"_a = "", "m"_a = "", "d"_a = "",
+      "t"_a = "thread name", "F"_a = "", "f"_a = "", "e"_a = "", "S"_a = "", "M"_a = "", "H"_a = "",
+      "l"_a = fmtlog::LogLevel(), "s"_a = "fmtlog.cc:123", "g"_a = "/home/raomeng/fmtlog/fmtlog.cc:123", "Ymd"_a = "",
+      "HMS"_a = "", "HMSe"_a = "", "HMSf"_a = "", "HMSF"_a = "", "YmdHMS"_a = "", "YmdHMSe"_a = "", "YmdHMSf"_a = "",
+      "YmdHMSF"_a = "");
+    shouldDeallocateHeader = headerPattern.data() != pattern;
+
+    setArg<0>(fmt::string_view(weekdayName.s, 3));
+    setArg<1>(fmt::string_view(monthName.s, 3));
+    setArg<2>(fmt::string_view(&year[2], 2));
+    setArg<3>(fmt::string_view(year.s, 4));
+    setArg<4>(fmt::string_view(month.s, 2));
+    setArg<5>(fmt::string_view(day.s, 2));
+    setArg<6>(fmt::string_view());
+    setArg<7>(fmt::string_view(nanosecond.s, 9));
+    setArg<8>(fmt::string_view(nanosecond.s, 6));
+    setArg<9>(fmt::string_view(nanosecond.s, 3));
+    setArg<10>(fmt::string_view(second.s, 2));
+    setArg<11>(fmt::string_view(minute.s, 2));
+    setArg<12>(fmt::string_view(hour.s, 2));
+    setArg<13>(fmt::string_view(logLevel.s, 3));
+    setArg<14>(fmt::string_view());
+    setArg<15>(fmt::string_view());
+    setArg<16>(fmt::string_view(year.s, 10)); // Ymd
+    setArg<17>(fmt::string_view(hour.s, 8));  // HMS
+    setArg<18>(fmt::string_view(hour.s, 12)); // HMSe
+    setArg<19>(fmt::string_view(hour.s, 15)); // HMSf
+    setArg<20>(fmt::string_view(hour.s, 18)); // HMSF
+    setArg<21>(fmt::string_view(year.s, 19));   // YmdHMS
+    setArg<22>(fmt::string_view(year.s, 23));   // YmdHMSe
+    setArg<23>(fmt::string_view(year.s, 26));   // YmdHMSf
+    setArg<24>(fmt::string_view(year.s, 29));   // YmdHMSF
+  }
+
+  class ThreadBufferDestroyer
+  {
+  public:
+    explicit ThreadBufferDestroyer() {}
+
+    void threadBufferCreated() {}
+
+    ~ThreadBufferDestroyer() {
+      if (fmtlog::threadBuffer != nullptr) {
+        fmtlog::threadBuffer->shouldDeallocate = true;
+        fmtlog::threadBuffer = nullptr;
+      }
+    }
+  };
+
+  struct StaticLogInfo
+  {
+    // Constructor
+    constexpr StaticLogInfo(fmtlog::FormatToFn fn, const char* loc, fmtlog::LogLevel level, fmt::string_view fmtString)
+      : formatToFn(fn)
+      , formatString(fmtString)
+      , location(loc)
+      , logLevel(level)
+      , argIdx(-1) {}
+
+    void processLocation() {
+      size_t size = strlen(location);
+      const char* p = location + size;
+      if (size > 255) {
+        location = p - 255;
+      }
+      endPos = p - location;
+      const char* base = location;
+      while (p > location) {
+        char c = *--p;
+        if (c == '/' || c == '\\') {
+          base = p + 1;
+          break;
+        }
+      }
+      basePos = base - location;
+    }
+
+    inline fmt::string_view getBase() { return fmt::string_view(location + basePos, endPos - basePos); }
+
+    inline fmt::string_view getLocation() { return fmt::string_view(location, endPos); }
+
+    fmtlog::FormatToFn formatToFn;
+    fmt::string_view formatString;
+    const char* location;
+    uint8_t basePos;
+    uint8_t endPos;
+    fmtlog::LogLevel logLevel;
+    int argIdx;
+  };
+
+  static thread_local ThreadBufferDestroyer sbc;
+  int64_t midnightNs;
+  fmt::string_view headerPattern;
+  bool shouldDeallocateHeader = false;
+  FILE* outputFp = nullptr;
+  bool manageFp = false;
+  size_t fpos = 0; // file position of membuf, used only when manageFp == true
+  int64_t flushDelay;
+  int64_t nextFlushTime = (std::numeric_limits<int64_t>::max)();
+  uint32_t flushBufSize = 8 * 1024;
+  fmtlog::LogLevel flushLogLevel = fmtlog::OFF;
+  std::mutex bufferMutex;
+  std::vector<fmtlog::ThreadBuffer*> threadBuffers;
+  struct HeapNode
+  {
+    HeapNode(fmtlog::ThreadBuffer* buffer)
+      : tb(buffer) {}
+
+    fmtlog::ThreadBuffer* tb;
+    const fmtlog::SPSCVarQueueOPT::MsgHeader* header = nullptr;
+  };
+  std::vector<HeapNode> bgThreadBuffers;
+  std::mutex logInfoMutex;
+  std::vector<StaticLogInfo> logInfos;
+  std::vector<StaticLogInfo> bgLogInfos;
+
+  fmtlog::LogCBFn logCB = nullptr;
+  fmtlog::LogLevel minCBLogLevel;
+  fmtlog::LogQFullCBFn logQFullCB = fmtlogEmptyFun;
+  void* logQFullCBArg = nullptr;
+
+  fmtlog::MemoryBuffer membuf;
+
+  const static int parttenArgSize = 25;
+  uint32_t reorderIdx[parttenArgSize];
+  Str<3> weekdayName;
+  Str<3> monthName;
+  Str<4> year;
+  char dash1 = '-';
+  Str<2> month;
+  char dash2 = '-';
+  Str<2> day;
+  char space = ' ';
+  Str<2> hour;
+  char colon1 = ':';
+  Str<2> minute;
+  char colon2 = ':';
+  Str<2> second;
+  char dot1 = '.';
+  Str<9> nanosecond;
+  Str<3> logLevel;
+  std::vector<fmt::basic_format_arg<fmtlog::Context>> args;
+
+  volatile bool threadRunning = false;
+  std::thread thr;
+
+  void resetDate() {
+    time_t rawtime = fmtlogWrapper<>::impl.tscns.rdns() / 1000000000;
+    struct tm* timeinfo = localtime(&rawtime);
+    timeinfo->tm_sec = timeinfo->tm_min = timeinfo->tm_hour = 0;
+    midnightNs = mktime(timeinfo) * 1000000000;
+    year.fromi(1900 + timeinfo->tm_year);
+    month.fromi(1 + timeinfo->tm_mon);
+    day.fromi(timeinfo->tm_mday);
+    const char* weekdays[7] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+    weekdayName = weekdays[timeinfo->tm_wday];
+    const char* monthNames[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+    monthName = monthNames[timeinfo->tm_mon];
+  }
+
+  void preallocate() {
+    if (fmtlog::threadBuffer) return;
+    fmtlog::threadBuffer = new fmtlog::ThreadBuffer();
+#ifdef _WIN32
+    uint32_t tid = static_cast<uint32_t>(::GetCurrentThreadId());
+#else
+    uint32_t tid = static_cast<uint32_t>(::syscall(SYS_gettid));
+#endif
+    fmtlog::threadBuffer->nameSize =
+      fmt::format_to_n(fmtlog::threadBuffer->name, sizeof(fmtlog::threadBuffer->name), "{}", tid).size;
+    sbc.threadBufferCreated();
+
+    std::unique_lock<std::mutex> guard(bufferMutex);
+    threadBuffers.push_back(fmtlog::threadBuffer);
+  }
+
+  template<size_t I, typename T>
+  inline void setArg(const T& arg) {
+    args[reorderIdx[I]] = fmt::detail::make_arg<fmtlog::Context>(arg);
+  }
+
+  template<size_t I, typename T>
+  inline void setArgVal(const T& arg) {
+    fmt::detail::value<fmtlog::Context>& value_ = *(fmt::detail::value<fmtlog::Context>*)&args[reorderIdx[I]];
+    value_ = fmt::detail::arg_mapper<fmtlog::Context>().map(arg);
+  }
+
+  void flushLogFile() {
+    if (outputFp) {
+      fwrite(membuf.data(), 1, membuf.size(), outputFp);
+      if (!manageFp) fflush(outputFp);
+      else
+        fpos += membuf.size();
+    }
+    membuf.clear();
+    nextFlushTime = (std::numeric_limits<int64_t>::max)();
+  }
+
+  void closeLogFile() {
+    if (membuf.size()) flushLogFile();
+    if (manageFp) fclose(outputFp);
+    outputFp = nullptr;
+    manageFp = false;
+  }
+
+  void startPollingThread(int64_t pollInterval) {
+    stopPollingThread();
+    threadRunning = true;
+    thr = std::thread([pollInterval, this]() {
+      while (threadRunning) {
+        int64_t before = fmtlogWrapper<>::impl.tscns.rdns();
+        poll(false);
+        int64_t delay = fmtlogWrapper<>::impl.tscns.rdns() - before;
+        if (delay < pollInterval) {
+          std::this_thread::sleep_for(std::chrono::nanoseconds(pollInterval - delay));
+        }
+      }
+      poll(true);
+    });
+  }
+
+  void stopPollingThread() {
+    if (!threadRunning) return;
+    threadRunning = false;
+    if (thr.joinable()) thr.join();
+  }
+
+  void handleLog(fmt::string_view threadName, const fmtlog::SPSCVarQueueOPT::MsgHeader* header) {
+    setArgVal<6>(threadName);
+    StaticLogInfo& info = bgLogInfos[header->logId];
+    const char* data = (const char*)(header + 1);
+    const char* end = (const char*)header + header->size;
+    int64_t tsc = *(int64_t*)data;
+    data += 8;
+    if (!info.formatToFn) { // log once
+      info.location = *(const char**)data;
+      data += 8;
+      info.processLocation();
+    }
+    int64_t ts = fmtlogWrapper<>::impl.tscns.tsc2ns(tsc);
+    // the date could go back when polling different threads
+    uint64_t t = (ts > midnightNs) ? (ts - midnightNs) : 0;
+    nanosecond.fromi(t % 1000000000);
+    t /= 1000000000;
+    second.fromi(t % 60);
+    t /= 60;
+    minute.fromi(t % 60);
+    t /= 60;
+    uint32_t h = t; // hour
+    if (h > 23) {
+      h %= 24;
+      resetDate();
+    }
+    hour.fromi(h);
+    setArgVal<14>(info.getBase());
+    setArgVal<15>(info.getLocation());
+    logLevel = (const char*)"DBG INF WRN ERR OFF" + (info.logLevel << 2);
+
+    size_t headerPos = membuf.size();
+    fmtlog::vformat_to(membuf, headerPattern, fmt::basic_format_args(args.data(), parttenArgSize));
+    size_t bodyPos = membuf.size();
+
+    if (info.formatToFn) {
+      info.formatToFn(info.formatString, data, membuf, info.argIdx, args);
+    }
+    else { // log once
+      membuf.append(fmt::string_view(data, end - data));
+    }
+
+    if (logCB && info.logLevel >= minCBLogLevel) {
+      logCB(ts, info.logLevel, info.getLocation(), info.basePos, threadName,
+            fmt::string_view(membuf.data() + headerPos, membuf.size() - headerPos), bodyPos - headerPos,
+            fpos + headerPos);
+    }
+    membuf.push_back('\n');
+    if (membuf.size() >= flushBufSize || info.logLevel >= flushLogLevel) {
+      flushLogFile();
+    }
+  }
+
+  void adjustHeap(size_t i) {
+    while (true) {
+      size_t min_i = i;
+      for (size_t ch = i * 2 + 1, end = std::min(ch + 2, bgThreadBuffers.size()); ch < end; ch++) {
+        auto h_ch = bgThreadBuffers[ch].header;
+        auto h_min = bgThreadBuffers[min_i].header;
+        if (h_ch && (!h_min || *(int64_t*)(h_ch + 1) < *(int64_t*)(h_min + 1))) min_i = ch;
+      }
+      if (min_i == i) break;
+      std::swap(bgThreadBuffers[i], bgThreadBuffers[min_i]);
+      i = min_i;
+    }
+  }
+
+  void poll(bool forceFlush) {
+    fmtlogWrapper<>::impl.tscns.calibrate();
+    int64_t tsc = fmtlogWrapper<>::impl.tscns.rdtsc();
+    if (logInfos.size()) {
+      std::unique_lock<std::mutex> lock(logInfoMutex);
+      for (auto& info : logInfos) {
+        info.processLocation();
+      }
+      bgLogInfos.insert(bgLogInfos.end(), logInfos.begin(), logInfos.end());
+      logInfos.clear();
+    }
+    if (threadBuffers.size()) {
+      std::unique_lock<std::mutex> lock(bufferMutex);
+      for (auto tb : threadBuffers) {
+        bgThreadBuffers.emplace_back(tb);
+      }
+      threadBuffers.clear();
+    }
+
+    for (size_t i = 0; i < bgThreadBuffers.size(); i++) {
+      auto& node = bgThreadBuffers[i];
+      if (node.header) continue;
+      node.header = node.tb->varq.front();
+      if (!node.header && node.tb->shouldDeallocate) {
+        delete node.tb;
+        node = bgThreadBuffers.back();
+        bgThreadBuffers.pop_back();
+        i--;
+      }
+    }
+
+    if (bgThreadBuffers.empty()) return;
+
+    // build heap
+    for (int i = bgThreadBuffers.size() / 2; i >= 0; i--) {
+      adjustHeap(i);
+    }
+
+    while (true) {
+      auto h = bgThreadBuffers[0].header;
+      if (!h || h->logId >= bgLogInfos.size() || *(int64_t*)(h + 1) >= tsc) break;
+      auto tb = bgThreadBuffers[0].tb;
+      handleLog(fmt::string_view(tb->name, tb->nameSize), h);
+      tb->varq.pop();
+      bgThreadBuffers[0].header = tb->varq.front();
+      adjustHeap(0);
+    }
+
+    if (membuf.size() == 0) return;
+    if (!manageFp || forceFlush) {
+      flushLogFile();
+      return;
+    }
+    int64_t now = fmtlogWrapper<>::impl.tscns.tsc2ns(tsc);
+    if (now > nextFlushTime) {
+      flushLogFile();
+    }
+    else if (nextFlushTime == (std::numeric_limits<int64_t>::max)()) {
+      nextFlushTime = now + flushDelay;
+    }
+  }
+};
+
+template<int _>
+thread_local typename fmtlogDetailT<_>::ThreadBufferDestroyer fmtlogDetailT<_>::sbc;
+
+template<int __ = 0>
+struct fmtlogDetailWrapper
+{ static fmtlogDetailT<> impl; };
+
+template<int _>
+fmtlogDetailT<> fmtlogDetailWrapper<_>::impl;
+
+template<int _>
+void fmtlogT<_>::registerLogInfo(uint32_t& logId, FormatToFn fn, const char* location,
+                                 LogLevel level, fmt::string_view fmtString) noexcept {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  std::lock_guard<std::mutex> lock(d.logInfoMutex);
+  if (logId) return;
+  logId = d.logInfos.size() + d.bgLogInfos.size();
+  d.logInfos.emplace_back(fn, location, level, fmtString);
+}
+
+template<int _>
+void fmtlogT<_>::vformat_to(fmtlog::MemoryBuffer& out, fmt::string_view fmt,
+                            fmt::format_args args) {
+  fmt::detail::vformat_to(out, fmt, args);
+}
+
+template<int _>
+size_t fmtlogT<_>::formatted_size(fmt::string_view fmt, fmt::format_args args) {
+  auto buf = fmt::detail::counting_buffer<>();
+  fmt::detail::vformat_to(buf, fmt, args);
+  return buf.count();
+}
+
+template<int _>
+void fmtlogT<_>::vformat_to(char* out, fmt::string_view fmt, fmt::format_args args) {
+  fmt::vformat_to(out, fmt, args);
+}
+
+template<int _>
+typename fmtlogT<_>::SPSCVarQueueOPT::MsgHeader* fmtlogT<_>::allocMsg(uint32_t size,
+                                                                      bool q_full_cb) noexcept {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  if (threadBuffer == nullptr) preallocate();
+  auto ret = threadBuffer->varq.alloc(size);
+  if ((ret == nullptr) & q_full_cb) d.logQFullCB(d.logQFullCBArg);
+  return ret;
+}
+
+template<int _>
+typename fmtlogT<_>::SPSCVarQueueOPT::MsgHeader*
+fmtlogT<_>::SPSCVarQueueOPT::allocMsg(uint32_t size) noexcept {
+  return alloc(size);
+}
+
+template<int _>
+void fmtlogT<_>::preallocate() noexcept {
+  fmtlogDetailWrapper<>::impl.preallocate();
+}
+
+template<int _>
+void fmtlogT<_>::setLogFile(const char* filename, bool truncate) {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  FILE* newFp = fopen(filename, truncate ? "w" : "a");
+  if (!newFp) {
+    std::string err = fmt::format("Unable to open file: {}: {}", filename, strerror(errno));
+    fmt::detail::throw_format_error(err.c_str());
+  }
+  setbuf(newFp, nullptr);
+  d.fpos = ftell(newFp);
+
+  closeLogFile();
+  d.outputFp = newFp;
+  d.manageFp = true;
+}
+
+template<int _>
+void fmtlogT<_>::setLogFile(FILE* fp, bool manageFp) {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  closeLogFile();
+  if (manageFp) {
+    setbuf(fp, nullptr);
+    d.fpos = ftell(fp);
+  }
+  else
+    d.fpos = 0;
+  d.outputFp = fp;
+  d.manageFp = manageFp;
+}
+
+template<int _>
+void fmtlogT<_>::setFlushDelay(int64_t ns) noexcept {
+  fmtlogDetailWrapper<>::impl.flushDelay = ns;
+}
+
+template<int _>
+void fmtlogT<_>::flushOn(LogLevel flushLogLevel) noexcept {
+  fmtlogDetailWrapper<>::impl.flushLogLevel = flushLogLevel;
+}
+
+template<int _>
+void fmtlogT<_>::setFlushBufSize(uint32_t bytes) noexcept {
+  fmtlogDetailWrapper<>::impl.flushBufSize = bytes;
+}
+
+template<int _>
+void fmtlogT<_>::closeLogFile() noexcept {
+  fmtlogDetailWrapper<>::impl.closeLogFile();
+}
+
+template<int _>
+void fmtlogT<_>::poll(bool forceFlush) {
+  fmtlogDetailWrapper<>::impl.poll(forceFlush);
+}
+
+template<int _>
+void fmtlogT<_>::setThreadName(const char* name) noexcept {
+  preallocate();
+  threadBuffer->nameSize = fmt::format_to_n(threadBuffer->name, sizeof(fmtlog::threadBuffer->name), "{}", name).size;
+}
+
+template<int _>
+void fmtlogT<_>::setLogCB(LogCBFn cb, LogLevel minCBLogLevel_) noexcept {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  d.logCB = cb;
+  d.minCBLogLevel = minCBLogLevel_;
+}
+
+template<int _>
+void fmtlogT<_>::setLogQFullCB(LogQFullCBFn cb, void* userData) noexcept {
+  auto& d = fmtlogDetailWrapper<>::impl;
+  d.logQFullCB = cb;
+  d.logQFullCBArg = userData;
+}
+
+template<int _>
+void fmtlogT<_>::setHeaderPattern(const char* pattern) {
+  fmtlogDetailWrapper<>::impl.setHeaderPattern(pattern);
+}
+
+template<int _>
+void fmtlogT<_>::startPollingThread(int64_t pollInterval) noexcept {
+  fmtlogDetailWrapper<>::impl.startPollingThread(pollInterval);
+}
+
+template<int _>
+void fmtlogT<_>::stopPollingThread() noexcept {
+  fmtlogDetailWrapper<>::impl.stopPollingThread();
+}
+
+template class fmtlogT<0>;
+
diff --git a/NetTunnelSDK/logs/fmtlog.cc b/NetTunnelSDK/logs/fmtlog.cc
new file mode 100644
index 0000000..da6c2ce
--- /dev/null
+++ b/NetTunnelSDK/logs/fmtlog.cc
@@ -0,0 +1 @@
+#include "fmtlog-inl.h"
diff --git a/NetTunnelSDK/logs/fmtlog.h b/NetTunnelSDK/logs/fmtlog.h
new file mode 100644
index 0000000..a572086
--- /dev/null
+++ b/NetTunnelSDK/logs/fmtlog.h
@@ -0,0 +1,826 @@
+/*
+MIT License
+
+Copyright (c) 2021 Meng Rao <raomeng1@gmail.com>
+
+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.
+*/
+#pragma once
+//#define FMT_HEADER_ONLY
+#include "fmt/format.h"
+#include <type_traits>
+#include <vector>
+#include <chrono>
+#include <atomic>
+#include <thread>
+#include <memory>
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+#ifdef _WIN32
+#define FAST_THREAD_LOCAL thread_local
+#else
+#define FAST_THREAD_LOCAL __thread
+#endif
+
+// define FMTLOG_BLOCK=1 if log statment should be blocked when queue is full, instead of discarding the msg
+#ifndef FMTLOG_BLOCK
+#define FMTLOG_BLOCK 0
+#endif
+
+#define FMTLOG_LEVEL_DBG 0
+#define FMTLOG_LEVEL_INF 1
+#define FMTLOG_LEVEL_WRN 2
+#define FMTLOG_LEVEL_ERR 3
+#define FMTLOG_LEVEL_OFF 4
+
+// define FMTLOG_ACTIVE_LEVEL to turn off low log level in compile time
+#ifndef FMTLOG_ACTIVE_LEVEL
+#define FMTLOG_ACTIVE_LEVEL FMTLOG_LEVEL_DBG
+#endif
+
+#ifndef FMTLOG_QUEUE_SIZE
+#define FMTLOG_QUEUE_SIZE (1 << 20)
+#endif
+
+namespace fmtlogdetail {
+template<typename Arg>
+struct UnrefPtr : std::false_type
+{ using type = Arg; };
+
+template<>
+struct UnrefPtr<char*> : std::false_type
+{ using type = char*; };
+
+template<>
+struct UnrefPtr<void*> : std::false_type
+{ using type = void*; };
+
+template<typename Arg>
+struct UnrefPtr<std::shared_ptr<Arg>> : std::true_type
+{ using type = Arg; };
+
+template<typename Arg, typename D>
+struct UnrefPtr<std::unique_ptr<Arg, D>> : std::true_type
+{ using type = Arg; };
+
+template<typename Arg>
+struct UnrefPtr<Arg*> : std::true_type
+{ using type = Arg; };
+
+}; // namespace fmtlogdetail
+
+template<int __ = 0>
+class fmtlogT
+{
+public:
+  enum LogLevel : uint8_t
+  {
+    DBG = 0,
+    INF,
+    WRN,
+    ERR,
+    OFF
+  };
+
+  // Preallocate thread queue for current thread
+  static void preallocate() noexcept;
+
+  // Set the file for logging
+  static void setLogFile(const char* filename, bool truncate = false);
+
+  // Set an existing FILE* for logging, if manageFp is false fmtlog will not buffer log internally
+  // and will not close the FILE*
+  static void setLogFile(FILE* fp, bool manageFp = false);
+
+  // Collect log msgs from all threads and write to log file
+  // If forceFlush = true, internal file buffer is flushed
+  // User need to call poll() repeatedly if startPollingThread is not used
+  static void poll(bool forceFlush = false);
+
+  // Set flush delay in nanosecond
+  // If there's msg older than ns in the buffer, flush will be triggered
+  static void setFlushDelay(int64_t ns) noexcept;
+
+  // If current msg has level >= flushLogLevel, flush will be triggered
+  static void flushOn(LogLevel flushLogLevel) noexcept;
+
+  // If file buffer has more than specified bytes, flush will be triggered
+  static void setFlushBufSize(uint32_t bytes) noexcept;
+
+  // callback signature user can register
+  // ns: nanosecond timestamp
+  // level: logLevel
+  // location: full file path with line num, e.g: /home/raomeng/fmtlog/fmtlog.h:45
+  // basePos: file base index in the location
+  // threadName: thread id or the name user set with setThreadName
+  // msg: full log msg with header
+  // bodyPos: log body index in the msg
+  // logFilePos: log file position of this msg
+  typedef void (*LogCBFn)(int64_t ns, LogLevel level, fmt::string_view location, size_t basePos,
+                          fmt::string_view threadName, fmt::string_view msg, size_t bodyPos,
+                          size_t logFilePos);
+
+  // Set a callback function for all log msgs with a mininum log level
+  static void setLogCB(LogCBFn cb, LogLevel minCBLogLevel) noexcept;
+
+  typedef void (*LogQFullCBFn)(void* userData);
+  static void setLogQFullCB(LogQFullCBFn cb, void* userData) noexcept;
+
+  // Close the log file and subsequent msgs will not be written into the file,
+  // but callback function can still be used
+  static void closeLogFile() noexcept;
+
+  // Set log header pattern with fmt named arguments
+  static void setHeaderPattern(const char* pattern);
+
+  // Set a name for current thread, it'll be shown in {t} part in header pattern
+  static void setThreadName(const char* name) noexcept;
+
+  // Set current log level, lower level log msgs will be discarded
+  static inline void setLogLevel(LogLevel logLevel) noexcept;
+
+  // Get current log level
+  static inline LogLevel getLogLevel() noexcept;
+
+  // return true if passed log level is not lower than current log level
+  static inline bool checkLogLevel(LogLevel logLevel) noexcept;
+
+  // Run a polling thread in the background with a polling interval in ns
+  // Note that user must not call poll() himself when the thread is running
+  static void startPollingThread(int64_t pollInterval = 1000000000) noexcept;
+
+  // Stop the polling thread
+  static void stopPollingThread() noexcept;
+
+  // https://github.com/MengRao/SPSC_Queue
+  class SPSCVarQueueOPT
+  {
+  public:
+    struct MsgHeader
+    {
+      inline void push(uint32_t sz) { *(volatile uint32_t*)&size = sz + sizeof(MsgHeader); }
+
+      uint32_t size;
+      uint32_t logId;
+    };
+    static constexpr uint32_t BLK_CNT = FMTLOG_QUEUE_SIZE / sizeof(MsgHeader);
+
+    MsgHeader* allocMsg(uint32_t size) noexcept;
+
+    MsgHeader* alloc(uint32_t size) {
+      size += sizeof(MsgHeader);
+      uint32_t blk_sz = (size + sizeof(MsgHeader) - 1) / sizeof(MsgHeader);
+      if (blk_sz >= free_write_cnt) {
+        uint32_t read_idx_cache = *(volatile uint32_t*)&read_idx;
+        if (read_idx_cache <= write_idx) {
+          free_write_cnt = BLK_CNT - write_idx;
+          if (blk_sz >= free_write_cnt && read_idx_cache != 0) { // wrap around
+            blk[0].size = 0;
+            blk[write_idx].size = 1;
+            write_idx = 0;
+            free_write_cnt = read_idx_cache;
+          }
+        }
+        else {
+          free_write_cnt = read_idx_cache - write_idx;
+        }
+        if (free_write_cnt <= blk_sz) {
+          return nullptr;
+        }
+      }
+      MsgHeader* ret = &blk[write_idx];
+      write_idx += blk_sz;
+      free_write_cnt -= blk_sz;
+      blk[write_idx].size = 0;
+      return ret;
+    }
+
+    inline const MsgHeader* front() {
+      uint32_t size = blk[read_idx].size;
+      if (size == 1) { // wrap around
+        read_idx = 0;
+        size = blk[0].size;
+      }
+      if (size == 0) return nullptr;
+      return &blk[read_idx];
+    }
+
+    inline void pop() {
+      uint32_t blk_sz = (blk[read_idx].size + sizeof(MsgHeader) - 1) / sizeof(MsgHeader);
+      *(volatile uint32_t*)&read_idx = read_idx + blk_sz;
+    }
+
+  private:
+    alignas(64) MsgHeader blk[BLK_CNT] = {};
+    uint32_t write_idx = 0;
+    uint32_t free_write_cnt = BLK_CNT;
+
+    alignas(128) uint32_t read_idx = 0;
+  };
+
+  struct ThreadBuffer
+  {
+    SPSCVarQueueOPT varq;
+    bool shouldDeallocate = false;
+    char name[32];
+    size_t nameSize;
+  };
+
+  // https://github.com/MengRao/tscns
+  class TSCNS
+  {
+  public:
+    static const int64_t NsPerSec = 1000000000;
+
+    void init(int64_t init_calibrate_ns = 20000000, int64_t calibrate_interval_ns = 3 * NsPerSec) {
+      calibate_interval_ns_ = calibrate_interval_ns;
+      int64_t base_tsc, base_ns;
+      syncTime(base_tsc, base_ns);
+      int64_t expire_ns = base_ns + init_calibrate_ns;
+      while (rdsysns() < expire_ns) std::this_thread::yield();
+      int64_t delayed_tsc, delayed_ns;
+      syncTime(delayed_tsc, delayed_ns);
+      double init_ns_per_tsc = (double)(delayed_ns - base_ns) / (delayed_tsc - base_tsc);
+      saveParam(base_tsc, base_ns, base_ns, init_ns_per_tsc);
+    }
+
+    void calibrate() {
+      if (rdtsc() < next_calibrate_tsc_) return;
+      int64_t tsc, ns;
+      syncTime(tsc, ns);
+      int64_t calulated_ns = tsc2ns(tsc);
+      int64_t ns_err = calulated_ns - ns;
+      int64_t expected_err_at_next_calibration =
+        ns_err + (ns_err - base_ns_err_) * calibate_interval_ns_ / (ns - base_ns_ + base_ns_err_);
+      double new_ns_per_tsc =
+        ns_per_tsc_ * (1.0 - (double)expected_err_at_next_calibration / calibate_interval_ns_);
+      saveParam(tsc, calulated_ns, ns, new_ns_per_tsc);
+    }
+
+    static inline int64_t rdtsc() {
+#ifdef _MSC_VER
+      return __rdtsc();
+#elif defined(__i386__) || defined(__x86_64__) || defined(__amd64__)
+      return __builtin_ia32_rdtsc();
+#else
+      return rdsysns();
+#endif
+    }
+
+    inline int64_t tsc2ns(int64_t tsc) const {
+      while (true) {
+        uint32_t before_seq = param_seq_.load(std::memory_order_acquire) & ~1;
+        std::atomic_signal_fence(std::memory_order_acq_rel);
+        int64_t ns = base_ns_ + (int64_t)((tsc - base_tsc_) * ns_per_tsc_);
+        std::atomic_signal_fence(std::memory_order_acq_rel);
+        uint32_t after_seq = param_seq_.load(std::memory_order_acquire);
+        if (before_seq == after_seq) return ns;
+      }
+    }
+
+    inline int64_t rdns() const { return tsc2ns(rdtsc()); }
+
+    static inline int64_t rdsysns() {
+      using namespace std::chrono;
+      return duration_cast<nanoseconds>(system_clock::now().time_since_epoch()).count();
+    }
+
+    double getTscGhz() const { return 1.0 / ns_per_tsc_; }
+
+    // Linux kernel sync time by finding the first trial with tsc diff < 50000
+    // We try several times and return the one with the mininum tsc diff.
+    // Note that MSVC has a 100ns resolution clock, so we need to combine those ns with the same
+    // value, and drop the first and the last value as they may not scan a full 100ns range
+    static void syncTime(int64_t& tsc_out, int64_t& ns_out) {
+#ifdef _MSC_VER
+      const int N = 15;
+#else
+      const int N = 3;
+#endif
+      int64_t tsc[N + 1];
+      int64_t ns[N + 1];
+
+      tsc[0] = rdtsc();
+      for (int i = 1; i <= N; i++) {
+        ns[i] = rdsysns();
+        tsc[i] = rdtsc();
+      }
+
+#ifdef _MSC_VER
+      int j = 1;
+      for (int i = 2; i <= N; i++) {
+        if (ns[i] == ns[i - 1]) continue;
+        tsc[j - 1] = tsc[i - 1];
+        ns[j++] = ns[i];
+      }
+      j--;
+#else
+      int j = N + 1;
+#endif
+
+      int best = 1;
+      for (int i = 2; i < j; i++) {
+        if (tsc[i] - tsc[i - 1] < tsc[best] - tsc[best - 1]) best = i;
+      }
+      tsc_out = (tsc[best] + tsc[best - 1]) >> 1;
+      ns_out = ns[best];
+    }
+
+    void saveParam(int64_t base_tsc, int64_t base_ns, int64_t sys_ns, double new_ns_per_tsc) {
+      base_ns_err_ = base_ns - sys_ns;
+      next_calibrate_tsc_ = base_tsc + (int64_t)((calibate_interval_ns_ - 1000) / new_ns_per_tsc);
+      uint32_t seq = param_seq_.load(std::memory_order_relaxed);
+      param_seq_.store(++seq, std::memory_order_release);
+      std::atomic_signal_fence(std::memory_order_acq_rel);
+      base_tsc_ = base_tsc;
+      base_ns_ = base_ns;
+      ns_per_tsc_ = new_ns_per_tsc;
+      std::atomic_signal_fence(std::memory_order_acq_rel);
+      param_seq_.store(++seq, std::memory_order_release);
+    }
+
+    alignas(64) std::atomic<uint32_t> param_seq_ = 0;
+    double ns_per_tsc_;
+    int64_t base_tsc_;
+    int64_t base_ns_;
+    int64_t calibate_interval_ns_;
+    int64_t base_ns_err_;
+    int64_t next_calibrate_tsc_;
+  };
+
+  void init() {
+    tscns.init();
+    currentLogLevel = INF;
+  }
+
+  using Context = fmt::format_context;
+  using MemoryBuffer = fmt::basic_memory_buffer<char, 10000>;
+  typedef const char* (*FormatToFn)(fmt::string_view format, const char* data, MemoryBuffer& out,
+                                    int& argIdx, std::vector<fmt::basic_format_arg<Context>>& args);
+
+  static void registerLogInfo(uint32_t& logId, FormatToFn fn, const char* location, LogLevel level,
+                              fmt::string_view fmtString) noexcept;
+
+  static void vformat_to(MemoryBuffer& out, fmt::string_view fmt, fmt::format_args args);
+
+  static size_t formatted_size(fmt::string_view fmt, fmt::format_args args);
+
+  static void vformat_to(char* out, fmt::string_view fmt, fmt::format_args args);
+
+  static typename SPSCVarQueueOPT::MsgHeader* allocMsg(uint32_t size, bool logQFullCB) noexcept;
+
+  TSCNS tscns;
+
+  volatile LogLevel currentLogLevel;
+  static FAST_THREAD_LOCAL ThreadBuffer* threadBuffer;
+
+  template<typename Arg>
+  static inline constexpr bool isNamedArg() {
+    return fmt::detail::is_named_arg<fmt::remove_cvref_t<Arg>>::value;
+  }
+
+  template<typename Arg>
+  struct unNamedType
+  { using type = Arg; };
+
+  template<typename Arg>
+  struct unNamedType<fmt::detail::named_arg<char, Arg>>
+  { using type = Arg; };
+
+#if FMT_USE_NONTYPE_TEMPLATE_ARGS
+  template<typename Arg, size_t N, fmt::detail_exported::fixed_string<char, N> Str>
+  struct unNamedType<fmt::detail::statically_named_arg<Arg, char, N, Str>>
+  { using type = Arg; };
+#endif
+
+  template<typename Arg>
+  static inline constexpr bool isCstring() {
+    return fmt::detail::mapped_type_constant<Arg, Context>::value ==
+           fmt::detail::type::cstring_type;
+  }
+
+  template<typename Arg>
+  static inline constexpr bool isString() {
+    return fmt::detail::mapped_type_constant<Arg, Context>::value == fmt::detail::type::string_type;
+  }
+
+  template<typename Arg>
+  static inline constexpr bool needCallDtor() {
+    using ArgType = fmt::remove_cvref_t<Arg>;
+    if constexpr (isNamedArg<Arg>()) {
+      return needCallDtor<typename unNamedType<ArgType>::type>();
+    }
+    if constexpr (isString<Arg>()) return false;
+    return !std::is_trivially_destructible<ArgType>::value;
+  }
+
+  template<size_t CstringIdx>
+  static inline constexpr size_t getArgSizes(size_t* cstringSize) {
+    return 0;
+  }
+
+  template<size_t CstringIdx, typename Arg, typename... Args>
+  static inline constexpr size_t getArgSizes(size_t* cstringSize, const Arg& arg,
+                                             const Args&... args) {
+    if constexpr (isNamedArg<Arg>()) {
+      return getArgSizes<CstringIdx>(cstringSize, arg.value, args...);
+    }
+    else if constexpr (isCstring<Arg>()) {
+      size_t len = strlen(arg) + 1;
+      cstringSize[CstringIdx] = len;
+      return len + getArgSizes<CstringIdx + 1>(cstringSize, args...);
+    }
+    else if constexpr (isString<Arg>()) {
+      size_t len = arg.size() + 1;
+      return len + getArgSizes<CstringIdx>(cstringSize, args...);
+    }
+    else {
+      return sizeof(Arg) + getArgSizes<CstringIdx>(cstringSize, args...);
+    }
+  }
+
+  template<size_t CstringIdx>
+  static inline constexpr char* encodeArgs(size_t* cstringSize, char* out) {
+    return out;
+  }
+
+  template<size_t CstringIdx, typename Arg, typename... Args>
+  static inline constexpr char* encodeArgs(size_t* cstringSize, char* out, Arg&& arg,
+                                           Args&&... args) {
+    if constexpr (isNamedArg<Arg>()) {
+      return encodeArgs<CstringIdx>(cstringSize, out, arg.value, std::forward<Args>(args)...);
+    }
+    else if constexpr (isCstring<Arg>()) {
+      memcpy(out, arg, cstringSize[CstringIdx]);
+      return encodeArgs<CstringIdx + 1>(cstringSize, out + cstringSize[CstringIdx],
+                                        std::forward<Args>(args)...);
+    }
+    else if constexpr (isString<Arg>()) {
+      size_t len = arg.size();
+      memcpy(out, arg.data(), len);
+      out[len] = 0;
+      return encodeArgs<CstringIdx>(cstringSize, out + len + 1, std::forward<Args>(args)...);
+    }
+    else {
+      // If Arg has alignment >= 16, gcc could emit aligned move instructions(e.g. movdqa) for
+      // placement new even if the *out* is misaligned, which would cause segfault. So we use memcpy
+      // when possible
+      if constexpr (std::is_trivially_copyable_v<fmt::remove_cvref_t<Arg>>) {
+        memcpy(out, &arg, sizeof(Arg));
+      }
+      else {
+        new (out) fmt::remove_cvref_t<Arg>(std::forward<Arg>(arg));
+      }
+      return encodeArgs<CstringIdx>(cstringSize, out + sizeof(Arg), std::forward<Args>(args)...);
+    }
+  }
+
+  template<size_t Idx, size_t NamedIdx>
+  static inline constexpr void storeNamedArgs(fmt::detail::named_arg_info<char>* named_args_store) {
+  }
+
+  template<size_t Idx, size_t NamedIdx, typename Arg, typename... Args>
+  static inline constexpr void storeNamedArgs(fmt::detail::named_arg_info<char>* named_args_store,
+                                              const Arg& arg, const Args&... args) {
+    if constexpr (isNamedArg<Arg>()) {
+      named_args_store[NamedIdx] = {arg.name, Idx};
+      storeNamedArgs<Idx + 1, NamedIdx + 1>(named_args_store, args...);
+    }
+    else {
+      storeNamedArgs<Idx + 1, NamedIdx>(named_args_store, args...);
+    }
+  }
+
+  template<bool ValueOnly, size_t Idx, size_t DestructIdx>
+  static inline const char* decodeArgs(const char* in, fmt::basic_format_arg<Context>* args,
+                                       const char** destruct_args) {
+    return in;
+  }
+
+  template<bool ValueOnly, size_t Idx, size_t DestructIdx, typename Arg, typename... Args>
+  static inline const char* decodeArgs(const char* in, fmt::basic_format_arg<Context>* args,
+                                       const char** destruct_args) {
+    using namespace fmtlogdetail;
+    using ArgType = fmt::remove_cvref_t<Arg>;
+    if constexpr (isNamedArg<ArgType>()) {
+      return decodeArgs<ValueOnly, Idx, DestructIdx, typename unNamedType<ArgType>::type, Args...>(
+        in, args, destruct_args);
+    }
+    else if constexpr (isCstring<Arg>() || isString<Arg>()) {
+      size_t size = strlen(in);
+      fmt::string_view v(in, size);
+      if constexpr (ValueOnly) {
+        fmt::detail::value<Context>& value_ = *(fmt::detail::value<Context>*)(args + Idx);
+        value_ = fmt::detail::arg_mapper<Context>().map(v);
+      }
+      else {
+        args[Idx] = fmt::detail::make_arg<Context>(v);
+      }
+      return decodeArgs<ValueOnly, Idx + 1, DestructIdx, Args...>(in + size + 1, args,
+                                                                  destruct_args);
+    }
+    else {
+      if constexpr (ValueOnly) {
+        fmt::detail::value<Context>& value_ = *(fmt::detail::value<Context>*)(args + Idx);
+        if constexpr (UnrefPtr<ArgType>::value) {
+          value_ = fmt::detail::arg_mapper<Context>().map(**(ArgType*)in);
+        }
+        else {
+          value_ = fmt::detail::arg_mapper<Context>().map(*(ArgType*)in);
+        }
+      }
+      else {
+        if constexpr (UnrefPtr<ArgType>::value) {
+          args[Idx] = fmt::detail::make_arg<Context>(**(ArgType*)in);
+        }
+        else {
+          args[Idx] = fmt::detail::make_arg<Context>(*(ArgType*)in);
+        }
+      }
+
+      if constexpr (needCallDtor<Arg>()) {
+        destruct_args[DestructIdx] = in;
+        return decodeArgs<ValueOnly, Idx + 1, DestructIdx + 1, Args...>(in + sizeof(ArgType), args,
+                                                                        destruct_args);
+      }
+      else {
+        return decodeArgs<ValueOnly, Idx + 1, DestructIdx, Args...>(in + sizeof(ArgType), args,
+                                                                    destruct_args);
+      }
+    }
+  }
+
+  template<size_t DestructIdx>
+  static inline void destructArgs(const char** destruct_args) {}
+
+  template<size_t DestructIdx, typename Arg, typename... Args>
+  static inline void destructArgs(const char** destruct_args) {
+    using ArgType = fmt::remove_cvref_t<Arg>;
+    if constexpr (isNamedArg<ArgType>()) {
+      destructArgs<DestructIdx, typename unNamedType<ArgType>::type, Args...>(destruct_args);
+    }
+    else if constexpr (needCallDtor<Arg>()) {
+      ((ArgType*)destruct_args[DestructIdx])->~ArgType();
+      destructArgs<DestructIdx + 1, Args...>(destruct_args);
+    }
+    else {
+      destructArgs<DestructIdx, Args...>(destruct_args);
+    }
+  }
+
+  template<typename... Args>
+  static const char* formatTo(fmt::string_view format, const char* data, MemoryBuffer& out,
+                              int& argIdx, std::vector<fmt::basic_format_arg<Context>>& args) {
+    constexpr size_t num_args = sizeof...(Args);
+    constexpr size_t num_dtors = fmt::detail::count<needCallDtor<Args>()...>();
+    const char* dtor_args[(std::max)(num_dtors, (size_t)1)];
+    const char* ret;
+    if (argIdx < 0) {
+      argIdx = (int)args.size();
+      args.resize(argIdx + num_args);
+      ret = decodeArgs<false, 0, 0, Args...>(data, args.data() + argIdx, dtor_args);
+    }
+    else {
+      ret = decodeArgs<true, 0, 0, Args...>(data, args.data() + argIdx, dtor_args);
+    }
+    vformat_to(out, format, fmt::basic_format_args(args.data() + argIdx, num_args));
+    destructArgs<0, Args...>(dtor_args);
+
+    return ret;
+  }
+
+  template<bool Reorder, typename... Args>
+  static fmt::string_view unNameFormat(fmt::string_view in, uint32_t* reorderIdx,
+                                       const Args&... args) {
+    constexpr size_t num_named_args = fmt::detail::count<isNamedArg<Args>()...>();
+    if constexpr (num_named_args == 0) {
+      return in;
+    }
+    const char* begin = in.data();
+    const char* p = begin;
+    std::unique_ptr<char[]> unnamed_str(new char[in.size() + 1 + num_named_args * 5]);
+    fmt::detail::named_arg_info<char> named_args[(std::max)(num_named_args, (size_t)1)];
+    storeNamedArgs<0, 0>(named_args, args...);
+
+    char* out = (char*)unnamed_str.get();
+    uint8_t arg_idx = 0;
+    while (true) {
+      auto c = *p++;
+      if (!c) {
+        size_t copy_size = p - begin - 1;
+        memcpy(out, begin, copy_size);
+        out += copy_size;
+        break;
+      }
+      if (c != '{') continue;
+      size_t copy_size = p - begin;
+      memcpy(out, begin, copy_size);
+      out += copy_size;
+      begin = p;
+      c = *p++;
+      if (!c) fmt::detail::throw_format_error("invalid format string");
+      if (fmt::detail::is_name_start(c)) {
+        while ((fmt::detail::is_name_start(c = *p) || ('0' <= c && c <= '9'))) {
+          ++p;
+        }
+        fmt::string_view name(begin, p - begin);
+        int id = -1;
+        for (size_t i = 0; i < num_named_args; ++i) {
+          if (named_args[i].name == name) {
+            id = named_args[i].id;
+            break;
+          }
+        }
+        if (id < 0) fmt::detail::throw_format_error("invalid format string");
+        if constexpr (Reorder) {
+          reorderIdx[id] = arg_idx++;
+        }
+        else {
+          out = fmt::format_to(out, "{}", id);
+        }
+      }
+      else {
+        *out++ = c;
+      }
+      begin = p;
+    }
+    const char* ptr = unnamed_str.release();
+    return fmt::string_view(ptr, out - ptr);
+  }
+
+public:
+  template<typename... Args>
+  inline void log(
+    uint32_t& logId, int64_t tsc, const char* location, LogLevel level,
+    fmt::format_string<typename fmtlogdetail::UnrefPtr<fmt::remove_cvref_t<Args>>::type...> format,
+    Args&&... args) noexcept {
+    if (!logId) {
+      auto unnamed_format = unNameFormat<false>(fmt::string_view(format), nullptr, args...);
+      registerLogInfo(logId, formatTo<Args...>, location, level, unnamed_format);
+    }
+    constexpr size_t num_cstring = fmt::detail::count<isCstring<Args>()...>();
+    size_t cstringSizes[(std::max)(num_cstring, (size_t)1)];
+    uint32_t alloc_size = 8 + (uint32_t)getArgSizes<0>(cstringSizes, args...);
+    bool q_full_cb = true;
+    do {
+      if (auto header = allocMsg(alloc_size, q_full_cb)) {
+        header->logId = logId;
+        char* out = (char*)(header + 1);
+        *(int64_t*)out = tsc;
+        out += 8;
+        encodeArgs<0>(cstringSizes, out, std::forward<Args>(args)...);
+        header->push(alloc_size);
+        break;
+      }
+      q_full_cb = false;
+    } while (FMTLOG_BLOCK);
+  }
+
+  template<typename... Args>
+  inline void logOnce(const char* location, LogLevel level, fmt::format_string<Args...> format,
+                      Args&&... args) {
+    fmt::string_view sv(format);
+    auto&& fmt_args = fmt::make_format_args(args...);
+    uint32_t fmt_size = formatted_size(sv, fmt_args);
+    uint32_t alloc_size = 8 + 8 + fmt_size;
+    bool q_full_cb = true;
+    do {
+      if (auto header = allocMsg(alloc_size, q_full_cb)) {
+        header->logId = (uint32_t)level;
+        char* out = (char*)(header + 1);
+        *(int64_t*)out = tscns.rdtsc();
+        out += 8;
+        *(const char**)out = location;
+        out += 8;
+        vformat_to(out, sv, fmt_args);
+        header->push(alloc_size);
+        break;
+      }
+      q_full_cb = false;
+    } while (FMTLOG_BLOCK);
+  }
+};
+
+using fmtlog = fmtlogT<>;
+
+template<int _>
+FAST_THREAD_LOCAL typename fmtlogT<_>::ThreadBuffer* fmtlogT<_>::threadBuffer;
+
+template<int __ = 0>
+struct fmtlogWrapper
+{ static fmtlog impl; };
+
+template<int _>
+fmtlog fmtlogWrapper<_>::impl;
+
+template<int _>
+inline void fmtlogT<_>::setLogLevel(LogLevel logLevel) noexcept {
+  fmtlogWrapper<>::impl.currentLogLevel = logLevel;
+}
+
+template<int _>
+inline typename fmtlogT<_>::LogLevel fmtlogT<_>::getLogLevel() noexcept {
+  return fmtlogWrapper<>::impl.currentLogLevel;
+}
+
+template<int _>
+inline bool fmtlogT<_>::checkLogLevel(LogLevel logLevel) noexcept {
+#ifdef FMTLOG_NO_CHECK_LEVEL
+  return true;
+#else
+  return logLevel >= fmtlogWrapper<>::impl.currentLogLevel;
+#endif
+}
+
+#define __FMTLOG_S1(x) #x
+#define __FMTLOG_S2(x) __FMTLOG_S1(x)
+#define __FMTLOG_LOCATION __FILE__ ":" __FMTLOG_S2(__LINE__)
+
+#define FMTLOG(level, format, ...)                                                                 \
+  do {                                                                                             \
+    static uint32_t logId = 0;                                                                     \
+    if (!fmtlog::checkLogLevel(level)) break;                                                      \
+    fmtlogWrapper<>::impl.log(logId, fmtlogWrapper<>::impl.tscns.rdtsc(), __FMTLOG_LOCATION,       \
+                              level, format, ##__VA_ARGS__);                                       \
+  } while (0)
+
+#define FMTLOG_LIMIT(min_interval, level, format, ...)                                             \
+  do {                                                                                             \
+    static uint32_t logId = 0;                                                                     \
+    static int64_t limitNs = 0;                                                                    \
+    if (!fmtlog::checkLogLevel(level)) break;                                                      \
+    int64_t tsc = fmtlogWrapper<>::impl.tscns.rdtsc();                                             \
+    int64_t ns = fmtlogWrapper<>::impl.tscns.tsc2ns(tsc);                                          \
+    if (ns < limitNs) break;                                                                       \
+    limitNs = ns + min_interval;                                                                   \
+    fmtlogWrapper<>::impl.log(logId, tsc, __FMTLOG_LOCATION, level, format, ##__VA_ARGS__);        \
+  } while (0)
+
+#define FMTLOG_ONCE(level, format, ...)                                                            \
+  do {                                                                                             \
+    if (!fmtlog::checkLogLevel(level)) break;                                                      \
+    fmtlogWrapper<>::impl.logOnce(__FMTLOG_LOCATION, level, format, ##__VA_ARGS__);                \
+  } while (0)
+
+#if FMTLOG_ACTIVE_LEVEL <= FMTLOG_LEVEL_DBG
+#define logd(format, ...) FMTLOG(fmtlog::DBG, format, ##__VA_ARGS__)
+#define logdo(format, ...) FMTLOG_ONCE(fmtlog::DBG, format, ##__VA_ARGS__)
+#define logdl(min_interval, format, ...) FMTLOG_LIMIT(min_interval, fmtlog::DBG, format, ##__VA_ARGS__)
+#else
+#define logd(format, ...) (void)0
+#define logdo(format, ...) (void)0
+#define logdl(min_interval, format, ...) (void)0
+#endif
+
+#if FMTLOG_ACTIVE_LEVEL <= FMTLOG_LEVEL_INF
+#define logi(format, ...) FMTLOG(fmtlog::INF, format, ##__VA_ARGS__)
+#define logio(format, ...) FMTLOG_ONCE(fmtlog::INF, format, ##__VA_ARGS__)
+#define logil(min_interval, format, ...) FMTLOG_LIMIT(min_interval, fmtlog::INF, format, ##__VA_ARGS__)
+#else
+#define logi(format, ...) (void)0
+#define logio(format, ...) (void)0
+#define logil(min_interval, format, ...) (void)0
+#endif
+
+#if FMTLOG_ACTIVE_LEVEL <= FMTLOG_LEVEL_WRN
+#define logw(format, ...) FMTLOG(fmtlog::WRN, format, ##__VA_ARGS__)
+#define logwo(format, ...) FMTLOG_ONCE(fmtlog::WRN, format, ##__VA_ARGS__)
+#define logwl(min_interval, format, ...) FMTLOG_LIMIT(min_interval, fmtlog::WRN, format, ##__VA_ARGS__)
+#else
+#define logw(format, ...) (void)0
+#define logwo(format, ...) (void)0
+#define logwl(min_interval, format, ...) (void)0
+#endif
+
+#if FMTLOG_ACTIVE_LEVEL <= FMTLOG_LEVEL_ERR
+#define loge(format, ...) FMTLOG(fmtlog::ERR, format, ##__VA_ARGS__)
+#define logeo(format, ...) FMTLOG_ONCE(fmtlog::ERR, format, ##__VA_ARGS__)
+#define logel(min_interval, format, ...) FMTLOG_LIMIT(min_interval, fmtlog::ERR, format, ##__VA_ARGS__)
+#else
+#define loge(format, ...) (void)0
+#define logeo(format, ...) (void)0
+#define logel(min_interval, format, ...) (void)0
+#endif
+
+#ifdef FMTLOG_HEADER_ONLY
+#include "fmtlog-inl.h"
+#endif
diff --git a/NetTunnelSDK/misc.h b/NetTunnelSDK/misc.h
new file mode 100644
index 0000000..d83c3df
--- /dev/null
+++ b/NetTunnelSDK/misc.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#ifndef ARRAY_SIZE
+//#ifdef __cplusplus
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+//#else
+//#define ARRAY_SIZE_TYPE_CHECK(a) (sizeof(typeof(int[1 - 2 * !!__builtin_types_compatible_p(typeof(a), typeof(&a[0]))])))
+//#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]) + ARRAY_SIZE_TYPE_CHECK(a) * 0)
+//#endif
+#endif
\ No newline at end of file
diff --git a/NetTunnelSDK/packages.config b/NetTunnelSDK/packages.config
new file mode 100644
index 0000000..7ee1a22
--- /dev/null
+++ b/NetTunnelSDK/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg" version="1.0.0" targetFramework="native" />
+</packages>
\ No newline at end of file
diff --git a/NetTunnelSDK/pch.cpp b/NetTunnelSDK/pch.cpp
new file mode 100644
index 0000000..781d282
--- /dev/null
+++ b/NetTunnelSDK/pch.cpp
@@ -0,0 +1,5 @@
+// pch.cpp: 与预编译标头对应的源文件
+
+#include "pch.h"
+
+// 当使用预编译的头时，需要使用此源文件，编译才能成功。
\ No newline at end of file
diff --git a/NetTunnelSDK/pch.h b/NetTunnelSDK/pch.h
new file mode 100644
index 0000000..9495fd1
--- /dev/null
+++ b/NetTunnelSDK/pch.h
@@ -0,0 +1,13 @@
+// pch.h: 这是预编译标头文件。
+// 下方列出的文件仅编译一次，提高了将来生成的生成性能。
+// 这还将影响 IntelliSense 性能，包括代码完成和许多代码浏览功能。
+// 但是，如果此处列出的文件中的任何一个在生成之间有更新，它们全部都将被重新编译。
+// 请勿在此处添加要频繁更新的文件，这将使得性能优势无效。
+
+#ifndef PCH_H
+#define PCH_H
+
+// 添加要在此处预编译的标头
+#include "framework.h"
+
+#endif //PCH_H
\ No newline at end of file
diff --git a/NetTunnelSDK/tunnel.cpp b/NetTunnelSDK/tunnel.cpp
new file mode 100644
index 0000000..f5d3244
--- /dev/null
+++ b/NetTunnelSDK/tunnel.cpp
@@ -0,0 +1,80 @@
+#include "pch.h"
+#include "tunnel.h"
+
+#include <iostream>
+
+#include "usrerr.h"
+#include "logs/fmtlog.h"
+
+typedef struct
+{
+    PROTO_CRYPTO_TYPE proCryptoType;
+    char proKeyBuf[CRYPTO_MAX][256];
+} SDK_CONFIG, *PSDK_CONFIG;
+
+static SDK_CONFIG g_globalConfig;
+
+NETTUNNELSDK_API int TunnelSDKInitEnv()
+{
+    memset(&g_globalConfig, 0, sizeof(SDK_CONFIG));
+    return ERR_SUCCESS;
+}
+
+NETTUNNELSDK_API void InitTunnelSDKLog(const char* pLogFile, LOG_LEVEL level)
+{
+    char buf[MAX_PATH] = {0};
+    static fmtlog::LogLevel lv[LOG_MAX] = {fmtlog::DBG, fmtlog::INF, fmtlog::WRN, fmtlog::ERR,};
+
+    //::MessageBoxA(NULL, pLogFile, NULL, MB_OK);
+    if (pLogFile && strlen(pLogFile) > 0)
+    {
+        strncpy_s(buf, pLogFile, MAX_PATH);
+    }
+    else
+    {
+        GetCurrentDirectory(MAX_PATH, buf);
+        strcat_s(buf, "\\tunnelsdk.log");
+    }
+
+    fmtlog::setLogFile(buf, false);
+    fmtlog::setHeaderPattern("[{YmdHMSe}][{l}][{s}] ");
+    fmtlog::setFlushDelay(1000000);
+    fmtlog::setLogLevel(lv[level]);
+
+    FMTLOG(lv[level], "Log({1}):{0}", buf, (int)level);
+}
+
+
+NETTUNNELSDK_API int SetProtocolEncryptType(PROTO_CRYPTO_TYPE type, const char* pProKey)
+{
+    if (type > CRYPTO_BASE64)
+    {
+        if (pProKey == nullptr || strlen(pProKey) < 8)
+        {
+            return -ERR_INPUT_PARAMS;
+        }
+    }
+
+    g_globalConfig.proCryptoType = type;
+    strncpy_s(g_globalConfig.proKeyBuf[type], pProKey, 256);
+
+    logd("Protocol crypto type: {0} with key [{1}]", (int)type, pProKey? pProKey : "");
+
+    return ERR_SUCCESS;
+}
+
+NETTUNNELSDK_API int CreateTunnel(LPCSTR lpszMsg)
+{
+    OutputDebugStringA(lpszMsg);
+    return 0;
+}
+
+NETTUNNELSDK_API const char* TestMessage()
+{
+    return "Test Message";
+}
+
+NETTUNNELSDK_API int Add(int a, int b)
+{
+    return a + b;
+}
diff --git a/NetTunnelSDK/tunnel.h b/NetTunnelSDK/tunnel.h
new file mode 100644
index 0000000..f528aed
--- /dev/null
+++ b/NetTunnelSDK/tunnel.h
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <Windows.h>
+
+#ifdef NETTUNNELSDK_EXPORTS
+#define NETTUNNELSDK_API __declspec(dllexport)
+#else
+#define NETTUNNELSDK_API __declspec(dllimport)
+#endif
+
+using PROTO_CRYPTO_TYPE = enum
+{
+    CRYPTO_NONE = 0,
+    CRYPTO_BASE64 = 1,
+    CRYPTO_AES128 = 2,
+    CRYPTO_3DES = 3,
+    CRYPTO_AES256 = 4,
+    CRYPTO_MAX,
+};
+
+typedef enum
+{
+    LOG_DEBUG = 0,
+    LOG_INFO = 1,
+    LOG_WARN = 2,
+    LOG_ERROR = 3,
+    LOG_MAX
+} LOG_LEVEL;
+
+#ifdef __cplusplus    // If used by C++ code,
+extern "C" {
+// we need to export the C interface
+#endif
+
+NETTUNNELSDK_API int __cdecl CreateTunnel(LPCSTR lpszMsg);
+NETTUNNELSDK_API const char*__cdecl TestMessage();
+NETTUNNELSDK_API int __cdecl Add(int a, int b);
+NETTUNNELSDK_API int __cdecl TunnelSDKInitEnv();
+NETTUNNELSDK_API int __cdecl SetProtocolEncryptType(PROTO_CRYPTO_TYPE type, const char* pProKey);
+NETTUNNELSDK_API void __cdecl InitTunnelSDKLog(const char* pLogFile, LOG_LEVEL level);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/NetTunnelSDK/usrerr.cpp b/NetTunnelSDK/usrerr.cpp
new file mode 100644
index 0000000..556692d
--- /dev/null
+++ b/NetTunnelSDK/usrerr.cpp
@@ -0,0 +1,28 @@
+#include "usrerr.h"
+#include "misc.h"
+
+#define MAX_DESC_LENGTH               (256)
+#define GENERATE_STRING(STRING,x, desc) {#STRING, desc},
+
+
+static const char *g_enumStrVal[][MAX_DESC_LENGTH] = {
+    DEF_ERR_CODE(GENERATE_STRING) {"ERR_UNKNOWN", "未知错误"},
+};
+
+const char *getErrorEnumNameString(int errCode) {
+    if (errCode < 0) {
+        errCode = -errCode;
+    }
+
+    if (errCode >= ARRAY_SIZE(g_enumStrVal) || errCode < 0) {
+        return g_enumStrVal[ARRAY_SIZE(g_enumStrVal) - 1][0];
+    }
+    return g_enumStrVal[errCode][0];
+}
+
+const char *getErrorEnumDesc(int errCode) {
+    if (errCode >= ARRAY_SIZE(g_enumStrVal) || errCode < 0) {
+        return g_enumStrVal[ARRAY_SIZE(g_enumStrVal) - 1][0];
+    }
+    return g_enumStrVal[errCode][1];
+}
\ No newline at end of file
diff --git a/NetTunnelSDK/usrerr.h b/NetTunnelSDK/usrerr.h
new file mode 100644
index 0000000..ac38100
--- /dev/null
+++ b/NetTunnelSDK/usrerr.h
@@ -0,0 +1,27 @@
+#pragma once
+
+
+#define DEF_ERR_CODE(ERR_CODE)                                  \
+    ERR_CODE(ERR_SUCCESS, 0, "成功")                               \
+    ERR_CODE(ERR_INPUT_PARAMS, 1, "输入参数错误")                  \
+    ERR_CODE(ERR_UN_SUPPORT, 2, "不支持的操作")                    \
+    ERR_CODE(ERR_CALL_SHELL, 3, "调用Shell命令失败")               \
+    ERR_CODE(ERR_ITEM_EXISTS, 4, "该内容已经存在")                 \
+    ERR_CODE(ERR_ITEM_UNEXISTS, 5, "该内容不存在")                 \
+    ERR_CODE(ERR_SYS_INIT, 6, "系统中断")                          \
+    ERR_CODE(ERR_SYS_CALL, 7, "系统调用")                          \
+    ERR_CODE(ERR_OPEN_FILE, 8, "打开文件失败")                     \
+    ERR_CODE(ERR_READ_FILE, 9, "读取文件失败")                     \
+    ERR_CODE(ERR_FILE_NOT_EXISTS, 10, "文件不存在")                 \
+    ERR_CODE(ERR_FILE_LOCKED, 11, "文件被锁定")                     \
+    ERR_CODE(ERR_GET_FILE_SIZE, 12, "获取文件大小失败")             \
+    ERR_CODE(ERR_COPY_FILE, 13, "复制文件失败")                     \
+    ERR_CODE(ERR_MALLOC_MEMORY, 14, "分配内存失败")                 \
+    ERR_CODE(ERR_MMAP_MEMORY, 15, "共享内存失败")
+
+#define GENERATE_ENUM(ENUM, n, x) ENUM,
+
+typedef enum
+{
+    DEF_ERR_CODE(GENERATE_ENUM)
+} USER_ERRNO;
diff --git a/NetworkTunnel.sln b/NetworkTunnel.sln
new file mode 100644
index 0000000..b3a6381
--- /dev/null
+++ b/NetworkTunnel.sln
@@ -0,0 +1,100 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.33627.172
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "NetTunnelSDK", "NetTunnelSDK\NetTunnelSDK.vcxproj", "{42AACC62-A37C-4B33-A687-D13C472CC980}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NetTunnelApp", "NetTunnelApp\NetTunnelApp.csproj", "{4999B360-F561-4B6D-A7B0-82EECE329089}"
+	ProjectSection(ProjectDependencies) = postProject
+		{42AACC62-A37C-4B33-A687-D13C472CC980} = {42AACC62-A37C-4B33-A687-D13C472CC980}
+	EndProjectSection
+EndProject
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+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "NetTunnelDemo", "NetTunnelDemo\NetTunnelDemo.vcxproj", "{7CCA5020-1E98-4AEF-99A4-34C05592CFE1}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|ARM64 = Debug|ARM64
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|ARM64 = Release|ARM64
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{42AACC62-A37C-4B33-A687-D13C472CC980}.Debug|Any CPU.ActiveCfg = Debug|x64
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+		{42AACC62-A37C-4B33-A687-D13C472CC980}.Debug|x86.Build.0 = Debug|Win32
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+		{6E425E69-15FA-474A-8798-054F0E0005E1}.Debug|Any CPU.ActiveCfg = Debug|x64
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+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {F2DF1495-C7F9-4EBF-8EDA-C16C5812616A}
+	EndGlobalSection
+EndGlobal
diff --git a/UTNetTunnelSDK/UTNetTunnelSDK.cpp b/UTNetTunnelSDK/UTNetTunnelSDK.cpp
new file mode 100644
index 0000000..2fcb354
--- /dev/null
+++ b/UTNetTunnelSDK/UTNetTunnelSDK.cpp
@@ -0,0 +1,18 @@
+#include "pch.h"
+#include "CppUnitTest.h"
+#include "../NetTunnelSDK/tunnel.h"
+
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+
+namespace UTNetTunnelSDK {
+TEST_CLASS(UTNetTunnelSDK) {
+public:
+    TEST_METHOD(TestTestMessage) {
+        Assert::AreEqual("Test Message", TestMessage());
+    }
+
+    TEST_METHOD(TestTunnelSDKInitEnv) {
+        Assert::AreEqual(0, TunnelSDKInitEnv());
+    }
+};
+}
diff --git a/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj
new file mode 100644
index 0000000..ec1c629
--- /dev/null
+++ b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj
@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <ProjectGuid>{6E425E69-15FA-474A-8798-054F0E0005E1}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>UTNetTunnelSDK</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <ProjectSubType>NativeUnitTestProject</ProjectSubType>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+    <UseOfMfc>false</UseOfMfc>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="pch.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="UTNetTunnelSDK.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\NetTunnelSDK\NetTunnelSDK.vcxproj">
+      <Project>{42aacc62-a37c-4b33-a687-d13c472cc980}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.filters b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.filters
new file mode 100644
index 0000000..c9e3e0f
--- /dev/null
+++ b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.filters
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="UTNetTunnelSDK.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="pch.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.user b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/UTNetTunnelSDK/UTNetTunnelSDK.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file
diff --git a/UTNetTunnelSDK/pch.cpp b/UTNetTunnelSDK/pch.cpp
new file mode 100644
index 0000000..b6fb8f4
--- /dev/null
+++ b/UTNetTunnelSDK/pch.cpp
@@ -0,0 +1,5 @@
+// pch.cpp: 与预编译标头对应的源文件
+
+#include "pch.h"
+
+// 当使用预编译的头时，需要使用此源文件，编译才能成功。
diff --git a/UTNetTunnelSDK/pch.h b/UTNetTunnelSDK/pch.h
new file mode 100644
index 0000000..69fcd40
--- /dev/null
+++ b/UTNetTunnelSDK/pch.h
@@ -0,0 +1,12 @@
+// pch.h: 这是预编译标头文件。
+// 下方列出的文件仅编译一次，提高了将来生成的生成性能。
+// 这还将影响 IntelliSense 性能，包括代码完成和许多代码浏览功能。
+// 但是，如果此处列出的文件中的任何一个在生成之间有更新，它们全部都将被重新编译。
+// 请勿在此处添加要频繁更新的文件，这将使得性能优势无效。
+
+#ifndef PCH_H
+#define PCH_H
+
+// 添加要在此处预编译的标头
+
+#endif //PCH_H
diff --git a/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props b/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props
new file mode 100644
index 0000000..489758c
--- /dev/null
+++ b/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.props
@@ -0,0 +1,6 @@
+
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VCPkgLocalAppDataDisabled>true</VCPkgLocalAppDataDisabled>
+  </PropertyGroup>
+</Project>
diff --git a/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets b/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets
new file mode 100644
index 0000000..482bb4e
--- /dev/null
+++ b/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/build/native/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.targets
@@ -0,0 +1,7 @@
+
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="C:\llvm-mingw-20230517-ucrt-x86_64\vcpkg\scripts\buildsystems\msbuild\vcpkg.targets" Condition="Exists('C:\llvm-mingw-20230517-ucrt-x86_64\vcpkg\scripts\buildsystems\msbuild\vcpkg.targets')" />
+  <Target Name="CheckValidPlatform" BeforeTargets="Build">
+    <Error Text="Unsupported architecture combination. Remove the 'vcpkg' nuget package." Condition="'$(VCPkgEnabled)' != 'true' and '$(VCPkgDisableError)' == ''"/>
+  </Target>
+</Project>
diff --git a/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0.nupkg b/packages/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0/vcpkg.C.llvmmingw20230517ucrtx8664.vcpkg.1.0.0.nupkg
new file mode 100644
index 0000000..9a9339c
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