JBoer's site

New C++ library: dmproc: replaces dmjava

Sat, 29 Sep 2012 23:43:02 +0000

I wasn't satisfied with my dmjava library as it turns out that it doesn't work in certain cases (specifically, it works in my test projects but not in my main project).

In my new approach I take a step back from the world of C/C++ and move more toward Java. This C library can run arbitrary programs on your server, and you can use the provided functions to talk to those programs.

Having Java interact with BYOND then just becomes a matter of writing a Java program that reads from the input streams (stdin) and responds on the output stream (stdout). I tested this approach on both Windows and Linux and it works properly.

I'm releasing this library as-is along with the source-code to the C++ library should anyone be interested in extending the functionality of this library, or in case there are others who would like to interact with processes in this way.

dmjava updated to v1.1

Sat, 25 Aug 2012 17:47:32 +0000

The dmjava library has been updated to version 1.1.

This version includes a couple of fixes and hopefully a more stable library.

I hope I'm getting used to the world of C/C++ and that I'm not making a lot of mistakes!

I've run a stress test with this version: when called 12500 times the library will use 1 tick of your time (between 1-6 ticks if you're using text2num() on the result). AFAIK this is unavoidable as the call() proc itself requires this time.

If anyone has any suggestions or bug reports the tracker on the hub entry is open to accept them.

A note on the "jvm.dll" file

Mon, 16 Apr 2012 23:11:35 +0000

In order to use this library you'll need to use a file called "jvm.dll".

It is not sufficient to simply download a copy of this file from the internet.

You will need to install the Java Runtime Environment (JRE) first. You can do this on the Sun website. Please note that you will need JRE 6, as Java 7 is not currently supported.

Then, search your system for "jvm.dll". On my system this file can be found in the following directory:

"C:\Program Files (x86)\Java\jre6\bin\client\jvm.dll"
(My local tests found that the "jvm.dll" from Java 7 will also work in this case, but note that your Java libraries have to be compiled with Java 6 (1.6) in order to work.)