c# – 枚举所有没有mscoree的AppDomain

如何在不引用mscoree的情况下枚举所有进程的域.可能吗？我从互联网上的某个地方找到了2007年的解决方案.但它列举并清空收集.

这是代码：

public static class DomainHelper
{
    public static AppDomain[] LoadedDomains
    {
        get
        {
            var loadedDomains = new List<AppDomain>();
            var runtimeHost = new CorRuntimeHost() as ICorRuntimeHost;

            try
            {
                var enumeration = IntPtr.Zero;
                runtimeHost.EnumDomains(out enumeration);

                try
                {
                    object nextDomain = null;
                    runtimeHost.NextDomain(enumeration,ref nextDomain);

                    while (nextDomain != null)
                    {
                        loadedDomains.Add((AppDomain) nextDomain);
                        nextDomain = null;
                        runtimeHost.NextDomain(enumeration,ref nextDomain);
                    }
                }
                finally
                {
                    runtimeHost.CloseEnum(enumeration);
                }
            }
            finally
            {
                Marshal.ReleaseComObject(runtimeHost);
            }

            return loadedDomains.ToArray();
        }
    }

    [ComImport]
    [Guid("CB2F6723-AB3A-11d2-9C40-00C04FA30A3E")]
    private class CorRuntimeHost // : ICorRuntimeHost
    {}

    [Guid("CB2F6722-AB3A-11D2-9C40-00C04FA30A3E")]
    [InterfaceType(ComInterfaceType.InterfaceIsIUnkNown)]
    private interface ICorRuntimeHost
    {
        void CloseEnum(IntPtr enumHandle);
        void CreateDomain();
        void CreateDomainEx();
        void CreateDomainSetup();
        void CreateEvidence();
        void CreateLogicalThreadState();
        void CurrentDomain();
        void DeleteLogicalThreadState();
        void EnumDomains(out IntPtr enumHandle);
        void GetConfiguration();
        void GetDefaultDomain();
        void LocksHeldByLogicalThread();
        void MapFile();
        void NextDomain(IntPtr enumHandle,[MarshalAs(UnmanagedType.IUnkNown)] ref object appDomain);
        void Start();
        void Stop();
        void SwitchInLogicalThreadState();
        void SwitchOutLogicalThreadState();
        void UnloadDomain();
    }
}

解决方法

不引用mscoree.tlb会让你遇到麻烦,ICorRuntimeHost声明错误.方法顺序完全混淆,不清楚是怎么回事. 2007年,生活也变得更加简单,主机界面针对.NET 4.0进行了彻底重新设计,并且不推荐使用ICorRuntimeHost.它仍然有效,肯定会有一段时间.

我将发布在.NET 4.0及更高版本上运行的代码.正确的方法是从ICLRMetaHost开始.然后获取您感兴趣的运行时实例的ICLRRuntimeInfo实例.请记住,.NET 4.0支持CLR的进程内并行实例化,您将需要找到您的代码正在使用的实例.然后,ICLRRuntimeInfo :: GetInterface()方法可以将实例返回到传统的ICorRuntimeHost接口.

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;

public static class CLRUtil {
    public static IEnumerable<_AppDomain> EnumAppDomains() {
        // Obtain ICLRMetaHost interface
        object objHost;
        int hr = CLRCreateInstance(ref CLSID_CLRMetaHost,ref IID_CLRMetaHost,out objHost);
        if (hr < 0) throw new COMException("Cannot create Meta host",hr);
        var host = (ICLRMetaHost)objHost;

        // Obtain ICLRRuntimeInfo interface
        var vers = Environment.Version;
        var veRSString = string.Format("v{0}.{1}.{2}",vers.Major,vers.Minor,vers.Build);
        var objRuntime = host.GetRuntime(veRSString,ref IID_CLRRuntimeInfo);
        var runtime = (ICLRRuntimeInfo)objRuntime;
        bool started;
        uint flags;
        runtime.Isstarted(out started,out flags);
        if (!started) throw new COMException("CLR not started??");

        // Obtain legacy ICorRuntimeHost interface and iterate appdomains
        var V2Host = (ICorRuntimeHost)runtime.GetInterface(ref CLSID_CorRuntimeHost,ref IID_CorRuntimeHost);
        IntPtr hDomainEnum;
        V2Host.EnumDomains(out hDomainEnum);
        for (;;) {
            _AppDomain domain = null;
            V2Host.NextDomain(hDomainEnum,out domain);
            if (domain == null) break;
            yield return domain;
        }
        V2Host.CloseEnum(hDomainEnum);
    }

    private static Guid CLSID_CLRMetaHost = new Guid(0x9280188d,0xe8e,0x4867,0xb3,0xc,0x7f,0xa8,0x38,0x84,0xe8,0xde);
    private static Guid IID_CLRMetaHost = new Guid(0xD332DB9E,0xB9B3,0x4125,0x82,0x07,0xA1,0x48,0xF5,0x32,0x16);
    private static Guid IID_CLRRuntimeInfo = new Guid(0xBD39D1D2,0xBA2F,0x486a,0x89,0xB0,0xB4,0xCB,0x46,0x68,0x91);
    private static Guid CLSID_CorRuntimeHost = new Guid(0xcb2f6723,0xab3a,0x11d2,0x9c,0x40,0x00,0xc0,0x4f,0xa3,0x0a,0x3e);
    private static Guid IID_CorRuntimeHost = new Guid(0xcb2f6722,0x3e);

    [DllImport("mscoree.dll")]
    private static extern int CLRCreateInstance(ref Guid clsid,ref Guid iid,[MarshalAs(UnmanagedType.Interface)] out object ptr);

    [ComImport,Guid("D332DB9E-B9B3-4125-8207-A14884F53216"),InterfaceType(ComInterfaceType.InterfaceIsIUnkNown)]
    private interface ICLRMetaHost {
        [return: MarshalAs(UnmanagedType.Interface)]
        object GetRuntime(string version,ref Guid iid);
        // Rest omitted
    }

    [ComImport,Guid("BD39D1D2-BA2F-486a-89B0-B4B0CB466891"),InterfaceType(ComInterfaceType.InterfaceIsIUnkNown)]
    private interface ICLRRuntimeInfo {
        void GetVersionString(char[] buffer,int bufferLength);
        void GetRuntimeDirectory(char[] buffer,int bufferLength);
        bool IsLoaded(IntPtr hProcess);
        void LoadErrorString(uint id,char[] buffer,int bufferLength,int lcid);
        void LoadLibrary(string path,out IntPtr hMdodule);
        void GetProcAddress(string name,out IntPtr addr);
        [return: MarshalAs(UnmanagedType.Interface)]
        object GetInterface(ref Guid clsid,ref Guid iid);
        bool IsLoadable();
        void SetDefaultStartupFlags(uint flags,string configFile);
        void GetDefaultStartupFlags(out uint flags,char[] configFile,int configFileLength);
        void BindAsLegacyV2Runtime();
        void Isstarted(out bool started,out uint flags);
    }

    [ComImport,Guid("CB2F6722-AB3A-11d2-9C40-00C04FA30A3E"),InterfaceType(ComInterfaceType.InterfaceIsIUnkNown)]
    private interface ICorRuntimeHost {
        void CreateLogicalThreadState();
        void DeleteLogicalThreadState();
        void SwitchinLogicalThreadState(IntPtr cookie);
        void SwitchoutLogicalThreadState(out IntPtr cookie);
        void LocksHeldByLogicalThread(out int count);
        void MapFile(IntPtr hFile,out IntPtr address);
        void GetConfiguration(out IntPtr config);
        void Start();
        void Stop();
        void CreateDomain(string name,object identity,out _AppDomain domain);
        void GetDefaultDomain(out _AppDomain domain);
        void EnumDomains(out IntPtr hEnum);
        void NextDomain(IntPtr hEnum,out _AppDomain domain);
        void CloseEnum(IntPtr hEnum);
        // rest omitted
    }
}

样品用法：

class Program {
    static void Main(string[] args) {
        AppDomain.CreateDomain("Example");
        foreach (var domain in CLRUtil.EnumAppDomains()) {
            Console.WriteLine("Found appdomain {0}",domain.FriendlyName);
        }
        Console.ReadLine();
    }
}

输出：

Found appdomain ConsoleApplication1.vshost.exe
Found appdomain Example