03 Dec 2014
While writing the
MySQL plugin I found a strange need to compile two versions of my AppDomain Manager. Mainly it was for future compatibility. Plus I figured as long as my Interfaces didn’t change, everything would be great. But it left me with a sucking hole in my project solution. I was going to have to maintain two versions of source code
FOR THE EXACT SAME THING. I didn’t like that.
02 Dec 2014
So far, we’ve done a lot to the CLR hosting engine to properly handle type loading, type safety and custom assemblies. Now we have the task to support some desired functionality supplied with the CLR. Namely being able to support, or not support side-by-side CLR loading. We will take a look at what code changes are involved and what we can do to ensure proper loading.
30 Nov 2014
Now that we have a properly refactored base, and we have a good working solution to load new file from, we need to start considering safety. Not just type safety and integrity of data. No, safety of the executing code as well as the safety of the CLR host—MySQL in this case. Without that we would open up our new plugin library to a lot of malicious things.
26 Nov 2014
So far the application was simple and was able to load and run a command from inside of our AppDomain manager. As promised, I am extending this functionality to allow loading of any number of classes. In order to do this I made some large changes to the application. In order to keep things somewhat coherent between Parts 1, 2 and 3—I branched off into a work in progress(wip) area that should make it easier to follow along.
18 Nov 2014
Now that we’ve walked through the basics of a UDF, let’s start bolting on an AppDomain Manager. As I mentioned before in
part 2 my example is based off of the
ADMHost sample provided by Microsoft. The code is used as a jump off point, but we will be extending it as these posts progress. This part of the series will focus on the insertion points rather than the actual code. That will be in the next part. For some extra information on the hosting API check out
Customizing the Microsoft® .NET Framework by
Steven Pratschner. Also check out
MSDN for update information on the APIs.
