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using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.Threading;
using System.Runtime.Remoting;
using System.IO;
namespace OpenSim.Region.ScriptEngine.DotNetEngine
{
public class AppDomainManager
{
private int MaxScriptsPerAppDomain = 10;
private List<AppDomainStructure> AppDomains = new List<AppDomainStructure>();
private struct AppDomainStructure
{
/// <summary>
/// The AppDomain itself
/// </summary>
public AppDomain CurrentAppDomain;
/// <summary>
/// Number of scripts loaded into AppDomain
/// </summary>
public int ScriptsLoaded;
/// <summary>
/// Number of dead scripts
/// </summary>
public int ScriptsWaitingUnload;
}
private AppDomainStructure CurrentAD;
private object GetLock = new object();
private ScriptEngine m_scriptEngine;
public AppDomainManager(ScriptEngine scriptEngine)
{
m_scriptEngine = scriptEngine;
}
internal AppDomain GetFreeAppDomain()
{
lock(GetLock) {
// No current or current full?
if (CurrentAD.CurrentAppDomain == null || CurrentAD.ScriptsLoaded >= MaxScriptsPerAppDomain)
{
// Create a new current AppDomain
CurrentAD = new AppDomainStructure();
CurrentAD.ScriptsWaitingUnload = 0; // to avoid compile warning for not in use
CurrentAD.CurrentAppDomain = PrepareNewAppDomain();
AppDomains.Add(CurrentAD);
}
// Increase number of scripts loaded
CurrentAD.ScriptsLoaded++;
// Return AppDomain
return CurrentAD.CurrentAppDomain;
} // lock
}
private int AppDomainNameCount;
private AppDomain PrepareNewAppDomain()
{
// Create and prepare a new AppDomain
AppDomainNameCount++;
// TODO: Currently security and configuration match current appdomain
// Construct and initialize settings for a second AppDomain.
AppDomainSetup ads = new AppDomainSetup();
ads.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
//Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ScriptEngines");
//ads.ApplicationName = "DotNetScriptEngine";
//ads.DynamicBase = ads.ApplicationBase;
Console.WriteLine("AppDomain BaseDirectory: " + ads.ApplicationBase);
ads.DisallowBindingRedirects = false;
ads.DisallowCodeDownload = true;
ads.ShadowCopyFiles = "true";
ads.ConfigurationFile =
AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
AppDomain AD = AppDomain.CreateDomain("ScriptAppDomain_" + AppDomainNameCount, null, ads);
foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
{
//Console.WriteLine("Loading: " + a.GetName(true));
try
{
AD.Load(a.GetName(true));
}
catch (Exception e)
{
//Console.WriteLine("FAILED load");
}
}
Console.WriteLine("Assembly file: " + this.GetType().Assembly.CodeBase);
Console.WriteLine("Assembly name: " + this.GetType().ToString());
//AD.CreateInstanceFrom(this.GetType().Assembly.CodeBase, "OpenSim.Region.ScriptEngine.DotNetEngine.ScriptEngine");
//AD.Load(this.GetType().Assembly.CodeBase);
Console.WriteLine("Done preparing new appdomain.");
return AD;
}
public class NOOP : MarshalByRefType
{
public NOOP() {
}
}
}
}
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