/// <summary>
/// Initializes a new instance of the <see cref="RockDomain"/> class.
/// </summary>
/// <param name="rockWebPath">The path to the RockWeb folder.</param>
/// <exception cref="FileNotFoundException">Could not locate the Rock.dll</exception>
public RockDomain(string rockWebPath)
{
var rockDllPath = Path.Combine(rockWebPath, "bin", "Rock.dll");
if (!File.Exists(rockDllPath))
{
throw new FileNotFoundException("Could not locate the Rock.dll");
}
var setupInfo = new AppDomainSetup
{
ApplicationName = "Rock",
ApplicationBase = AppDomain.CurrentDomain.BaseDirectory,
PrivateBinPath = "C:\\Users\\Daniel Hazelbaker\\Desktop\\Rockit\\RockWeb\\bin"
};
Domain = AppDomain.CreateDomain("Rock", AppDomain.CurrentDomain.Evidence, setupInfo);
Domain.AssemblyResolve += AppDomain_AssemblyResolve;
var executeType = typeof(RemoteExec);
Executor = Domain.CreateInstanceAndUnwrap(executeType.Assembly.FullName, executeType.FullName) as RemoteExec;
Sponsor = new RemotingSponsor(Executor);
}
private ICustomPlugin[] _plugins; // I do not store real instances of Plugins, but a "CustomPluginProxy" which is known both by main AppDomain and Plugin AppDomain.
// Constructor : load an assembly file in another AppDomain (sandbox)
public PluginFile(System.IO.FileInfo f, AppDomainSetup appDomainSetup, Evidence evidence)
{
Directory = System.IO.Path.GetDirectoryName(f.FullName) + @"\";
_sandbox = AppDomain.CreateDomain("sandbox_" + Guid.NewGuid(), evidence, appDomainSetup);
_sandbox.Load(typeof(Loader).Assembly.FullName);
// - Instanciate class "Loader" INSIDE OTHER APPDOMAIN, so we couldn't use new() which would create in main AppDomain.
_loader = (Loader)Activator.CreateInstance(
_sandbox,
typeof(Loader).Assembly.FullName,
typeof(Loader).FullName,
false,
BindingFlags.Public | BindingFlags.Instance,
null,
null,
null,
null).Unwrap();
// - Load plugins list for assembly
_plugins = _loader.LoadPlugins(f.FullName);
// - Keep object created in other AppDomain not to be "Garbage Collected". I create a sponsor. The sponsor in registed for object "Lease". The LeaseManager will check lease expiration, and call sponsor. Sponsor can decide to renew lease. I not renewed, the object is garbage collected.
// - Here is an explanation. Source: https://stackoverflow.com/questions/12306497/how-do-the-isponsor-and-ilease-interfaces-work
_sponsor = new RemotingSponsor(_loader);
// Here is my SOLUTION after many hours ! I had to sponsor each MarshalByRefObject (plugins) and not only the main one that contains others !!!
foreach (ICustomPlugin plugin in Plugins)
{
ILease lease = (ILease)RemotingServices.GetLifetimeService((PluginProxy)plugin);
lease.Register(_sponsor); // Use the same sponsor. Each Object lease could have as many sponsors as needed, and each sponsor could be registered in many Leases.
}
}
