An utility that was added to the DWScript sample WebServer during the 4 TeraPixel Mandelbrot experiment is the BackgroundWorkers API.
This is a rather low-level threading facility that can work well with Global Queues to handle background tasks or serializing tasks.
Happy new Year to all!
The fractals.dwscript.net is now launched to host the results of the recent Mandelbrot TeraPixel experiment. It’s a small website to centralizes browser, documentations, links and downloads.
There was also news of a FireMonkey client for the data set API.
I’ve activated a small random pass phrase secure service based on DWScript Web Server.
You can reach it at
The twist is that the computations are handled server-side, using DWScript JIT compiler, so exploration can be fairly fast and comfortable even on low-powered hardware, be it an iPad, a Smartphone or an old laptop.
In DWScript WebServer in the metered cloud, I mentioned setting up a light weight Windows 2008 r2 Virtual Private Server to serve as web server host.
A parallel series of articles deals with the DWScript Web Server itself, and this is a mini-series about setting up Windows 2008 with minimal memory, CPU, storage and vulnerability surface.
The DWS Web Server pre-compiled binary has been updated, it is now packaged in an InnoSetup installer, comes with SQLite 3.8.0.2 and other changes (see below).
The installer is still rather simple, but includes command files for service installataion/uninstallation, link to online documentations and an uninstaller. The previous Getting Started guide still applies, but is thus simplified.
A pre-compiled server executable is available from google code (1008 kB), built from current trunk version.
edit 2013-08-30: the zip has now been replaced by a proper installer
Below is a quick start guide to playing with that server, I hope to later find time for more complete guide up to setting up a complete “production server”.
I’ve now been running the DWScript Sample Web Server for 8 months in a metered host (Ikoula’s 1€/month VM), so it’s time for a more formal introduction article.
It served web pages and JSON dynamically generated by DWScript, using an SQLite database for storage. It ran on a Windows 2008 R2 Standard installation, minimized so that OS+Server stayed around 256 MB RAM.
DWScript now has database support classes built-in, these are based on a thin, interface-based layer, and can be used Delphi-side as well to get automatic memory management for simple DB access.
It currently supports mORMot SynDB and Universal InterBase, meaning it gets high performance native connectivity to SQLite, FireBird, Oracle, ODBC and OleDB (MySQL, MS SQLServer, MS Jet, AS400…).