public String Load(String assembly)
{
String domainBase = "unknown";
try
{
if (_currentDomain != null)
{
AppDomain.Unload(_currentDomain);
}
_currentDomain = null;
// The assembly is expected to be in the ModelMod installation directory.
// (Unlike this app domain assembly, which must be copied into the game dir).
// Setting appbase to this modelmod install dir allows the references
// (fsharp, monogame, etc) to be loaded
// without requiring them to be copied to the game dir.
var ads = new AppDomainSetup();
ads.ApplicationBase = Path.GetDirectoryName(assembly);
ads.DisallowBindingRedirects = false;
ads.DisallowCodeDownload = true;
// use the configuration file property to specify the name of the assembly that must be loaded.
// can't use a static field; the sandbox domain has a separate copy of all the statics.
ads.ConfigurationFile = assembly;
// this loader callback is needed so that we can hot-swap the assembly.
// http://stackoverflow.com/questions/425077/how-to-delete-the-pluginassembly-after-appdomain-unloaddomain
var d = base.CreateDomain("ImSoFriendly", null, ads);
_currentDomain = d;
domainBase = d.BaseDirectory;
d.DoCallBack(new CrossAppDomainDelegate(LoaderCB));
return ""; // empty string means no error, otherwise, its an error message
}
catch (Exception e)
{
return "Error during load. " + Environment.NewLine
+ "Root app domain: " + AppDomain.CurrentDomain.GetHashCode() + Environment.NewLine
+ "Sandbox domain: " + _currentDomain.GetHashCode() + Environment.NewLine
+ "Sandbox domain base: " + domainBase + Environment.NewLine
+ "Exception: " + e.ToString();
}
}
public virtual void Run()
{
this.TryObtainLock();
try
{
this.Preconditions(Pre.SiteSet | Pre.RootNamespaceSet | Pre.RootMonikerSet | Pre.EngineNotRunning | Pre.EngineNotClosed);
System.AppDomain currentDomain = System.AppDomain.CurrentDomain;
if (this.haveCompiledState)
{
if (this.rootNamespace != this.compiledRootNamespace)
{
throw new JSVsaException(JSVsaError.RootNamespaceInvalid);
}
this.loadedAssembly = this.LoadCompiledState();
currentDomain.SetData(this.engineMoniker, this.loadedAssembly);
}
else
{
if (this.failedCompilation)
{
throw new JSVsaException(JSVsaError.EngineNotCompiled);
}
this.startupClass = null;
this.loadedAssembly = currentDomain.GetData(this.engineMoniker) as System.Reflection.Assembly;
if (this.loadedAssembly == null)
{
string name = this.engineMoniker + "/" + currentDomain.GetHashCode().ToString(CultureInfo.InvariantCulture);
Mutex mutex = new Mutex(false, name);
if (mutex.WaitOne())
{
try
{
this.loadedAssembly = currentDomain.GetData(this.engineMoniker) as System.Reflection.Assembly;
if (this.loadedAssembly == null)
{
byte[] buffer;
byte[] buffer2;
this.engineSite.GetCompiledState(out buffer, out buffer2);
if (buffer == null)
{
throw new JSVsaException(JSVsaError.GetCompiledStateFailed);
}
this.loadedAssembly = System.Reflection.Assembly.Load(buffer, buffer2, this.executionEvidence);
currentDomain.SetData(this.engineMoniker, this.loadedAssembly);
}
}
finally
{
mutex.ReleaseMutex();
mutex.Close();
}
}
}
}
try
{
if (this.startupClass == null)
{
this.startupClass = this.loadedAssembly.GetType(this.rootNamespace + "._Startup", true);
}
}
catch (Exception exception)
{
throw new JSVsaException(JSVsaError.BadAssembly, exception.ToString(), exception);
}
try
{
this.startupInstance = (BaseVsaStartup)Activator.CreateInstance(this.startupClass);
this.isEngineRunning = true;
this.startupInstance.SetSite(this.engineSite);
this.startupInstance.Startup();
}
catch (Exception exception2)
{
throw new JSVsaException(JSVsaError.UnknownError, exception2.ToString(), exception2);
}
}
finally
{
this.ReleaseLock();
}
}
