我需要做这样的事情在C＃（伪）：如何获取父AppDomain？
static var ns = new Non_Serializable_Nor_Marshal()
var app = new AppDomain();
app.execute(foo)
void foo()
{
var host = AppDomain.Current.Parent; //e.g. the original one
host.execute(bar)
}
void bar()
{
ns.Something();
}
IOW我有一个AppDomain的非可序列化，也没有元帅对象。 我想创建第二个域并执行foo（）。在第二个域中，我想在原始域上执行bar（）。
如何将原始域名传递给子域名？
如果你不想使用互操作，还可以使用AppDomainManager使用一个小技巧。你基本上可以自动地将'主'域自动'连线'到任何域中 - 我这样做的方式意味着你放弃了你的真实主域名。
这里是做所有的魔法等级：
/// <summary>
/// Represents a <see cref="AppDomainManager"/> that is
/// aware of the primary application AppDomain.
/// </summary>
public class PrimaryAppDomainManager : AppDomainManager
{
private static AppDomain _primaryDomain;
/// <summary>
/// Gets the primary domain.
/// </summary>
/// <value>The primary domain.</value>
public static AppDomain PrimaryDomain
{
get
{
return _primaryDomain;
}
}
/// <summary>
/// Sets the primary domain.
/// </summary>
/// <param name="primaryDomain">The primary domain.</param>
private void SetPrimaryDomain(AppDomain primaryDomain)
{
_primaryDomain = primaryDomain;
}
/// <summary>
/// Sets the primary domain to self.
/// </summary>
private void SetPrimaryDomainToSelf()
{
_primaryDomain = AppDomain.CurrentDomain;
}
/// <summary>
/// Determines whether this is the primary domain.
/// </summary>
/// <value>
/// <see langword="true"/> if this instance is the primary domain; otherwise, <see langword="false"/>.
/// </value>
public static bool IsPrimaryDomain
{
get
{
return _primaryDomain == AppDomain.CurrentDomain;
}
}
/// <summary>
/// Creates the initial domain.
/// </summary>
/// <param name="friendlyName">Name of the friendly.</param>
/// <param name="securityInfo">The security info.</param>
/// <param name="appDomainInfo">The AppDomain setup info.</param>
/// <returns></returns>
public static AppDomain CreateInitialDomain(string friendlyName, Evidence securityInfo, AppDomainSetup appDomainInfo)
{
if (AppDomain.CurrentDomain.DomainManager is PrimaryAppDomainManager)
return null;
appDomainInfo = appDomainInfo ?? new AppDomainSetup();
appDomainInfo.AppDomainManagerAssembly = typeof(PrimaryAppDomainManager).Assembly.FullName;
appDomainInfo.AppDomainManagerType = typeof(PrimaryAppDomainManager).FullName;
var appDomain = AppDomainManager.CreateDomainHelper(friendlyName, securityInfo, appDomainInfo);
((PrimaryAppDomainManager)appDomain.DomainManager).SetPrimaryDomainToSelf();
_primaryDomain = appDomain;
return appDomain;
}
/// <summary>
/// Returns a new or existing application domain.
/// </summary>
/// <param name="friendlyName">The friendly name of the domain.</param>
/// <param name="securityInfo">An object that contains evidence mapped through the security policy to establish a top-of-stack permission set.</param>
/// <param name="appDomainInfo">An object that contains application domain initialization information.</param>
/// <returns>A new or existing application domain.</returns>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="ControlEvidence, ControlAppDomain, Infrastructure"/>
/// </PermissionSet>
public override AppDomain CreateDomain(string friendlyName, Evidence securityInfo, AppDomainSetup appDomainInfo)
{
appDomainInfo = appDomainInfo ?? new AppDomainSetup();
appDomainInfo.AppDomainManagerAssembly = typeof(PrimaryAppDomainManager).Assembly.FullName;
appDomainInfo.AppDomainManagerType = typeof(PrimaryAppDomainManager).FullName;
var appDomain = base.CreateDomain(friendlyName, securityInfo, appDomainInfo);
((PrimaryAppDomainManager)appDomain.DomainManager).SetPrimaryDomain(_primaryDomain);
return appDomain;
}
}
而你需要稍微改变您的Main()（应用程序入口）：在任何时候
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
new Program().Run(args);
}
void Run(string[] args)
{
var domain = PrimaryAppDomainManager.CreateInitialDomain("PrimaryDomain", null, null);
if (domain == null)
{
// Original Main() code here.
}
else
{
domain.CreateInstanceAndUnwrap<Program>().Run(args);
}
}
现在，你可以得到PrimaryAppDomainManager.PrimaryDomain到获得对主域的引用，请记住它不是由.Net运行时创建的初始域 - 它是我们立即创建的域。
您可以查看我的blog post中的注释，以获取.Net运行库以便自动使用app.config将其挂钩。
编辑：我忘了补充我使用扩展方法，那就是：
/// <summary>
/// Creates a new instance of the specified type.
/// </summary>
/// <typeparam name="T">The type of object to create.</typeparam>
/// <param name="appDomain">The app domain.</param>
/// <returns>A proxy for the new object.</returns>
public static T CreateInstanceAndUnwrap<T>(this AppDomain appDomain)
{
var res = (T)appDomain.CreateInstanceAndUnwrap(typeof(T));
return res;
}
你可以尝试引用mscoree然后使用它的方法。我在我的一个项目中使用了这个。 mscoree会在没有任何输入的情况下跟踪您的AppDomain。
/// <summary>
/// Returns the primary application domain.
/// </summary>
/// <returns>The primary application domain.</returns>
public static AppDomain GetPrimaryAppDomain()
{
return GetAppDomain(Process.GetCurrentProcess().MainModule.ModuleName);
}
/// <summary>
/// Returns the application domain with the given friendly name.
/// </summary>
/// <param name="friendlyName">The friendly name of the application domain.</param>
/// <returns>The application domain with the given friendly name.</returns>
/// <exception cref="System.ArgumentNullException">Thrown if friendlyName is null.</exception>
public static AppDomain GetAppDomain(string friendlyName)
{
if (friendlyName == null)
{
throw new ArgumentNullException("friendlyName");
}
IntPtr handle = IntPtr.Zero;
CorRuntimeHostClass host = new CorRuntimeHostClass();
try
{
host.EnumDomains(out handle);
object domain = null;
while (true)
{
host.NextDomain(handle, out domain);
if (domain == null)
{
return null;
}
AppDomain appDomain = (AppDomain)domain;
if (appDomain.FriendlyName == friendlyName)
{
return appDomain;
}
}
}
finally
{
host.CloseEnum(handle);
Marshal.ReleaseComObject(host);
host = null;
}
}
（从http://www.dolittle.com/blogs/einar/archive/2007/05/18/cross-appdomain-singleton.aspx改编）