February CoreDX Connection

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February CoreDX DDS Connection 2023


Welcome to the Twin Oaks Computing, Inc Newsletter!

Our monthly newsletter brings you news and information about Twin Oaks Computing and our CoreDX DDS middleware. Be sure to "like", "follow" and "friend" us on our Social Networking sites for fun facts, free giveaways, and stories about Communications Middleware, Technology, and Twin Oaks Computing.

Upcoming Webinar: CoreDX DDS Performance - Optimize Your Communications Infrastructure

Wednesday, February 15, 2023 - 9am MST

While using CoreDX DDX for basic communications is straight forward, using the more robust and powerful features in a large networked system can quickly become a complex activity. Making use of DDS features while meeting varied timing requirements across various streams of data can be challenging. This webinar will take a look at the tools available to monitor, analyze, and optimize performance of your CoreDX DDS infrastructure.

Register for the webinar here.

CoreDX DDS Tips & Tricks

Welcome to this month's edition of CoreDX DDS Tips & Tricks, where our engineers provide quick bits of information to help our customers.

Using CoreDX DDS License Keys

The run-time CoreDX DDS libraries require a license key to operate. This license key may be loaded from:

  • A file
  • An environment variable
  • Hardcoded into the application

The TWINOAKS_LICENSE_FILE environment variable may contain the file containing the key, or just contain the key string enclosed in <> brackets. For example:




Alternatively, the CoreDX DDS DomainParticipant::set_license() API may be used. The license argument may be a filename, or the license key string enclised in <> brackets. For example:

dp -> set_license("/home/user/Acme_CoreDXtemp.lic") ;


dp _> set_license("") ;

CoreDX DDS Tips & Tricks are intended to be useful for engineers using CoreDX DDS. If you have any questions, please contact us here.

Thank you for visiting us at IOTSWC

Twin Oaks Computing would like to thank everyone who stopped by our booth at IOT Solutions World Congress in Barcelona last month.

IOTSWC 2023 is the leading event on trends in digital transformation, based on disruptive technologies. Their mission: To create a roadmap to navigate the opportunities and risks, and help you focus on the technologies that have the greatest business impact.

Try the full-featured CoreDX DDS product free for 30 days

Check out the newest DDS standardized features and get your hands on the leading small footprint Data Distribution Service implementation to see what it can do for you.

CoreDX DDS v5 continues to focus on resources and performance while incorporating new features and enhancements. Our evaluation copies include the full DDS API and standardized wire protocol, including:

  • All language bindings for the DDS API's (C,C++, Cxx, C#, Java, Python, JavaScript)
  • Full X-Types support including IDL, XML, and Dynamic type representations
  • Remote Procedure Call over DDS (RPC over DDS)
  • XML Application Definition
  • DDS Security (upon request)

With these enhanced features, CoreDX DDS is the perfect middleware solution to meet the challenges of today's Industrial Internet of Things (IIoT) systems. Learn more here.

The evaluation is available here for direct download for the most common platforms, including Linux, Solaris, and Windows. Download your free 30 day trial of CoreDX DDS here.

Upcoming Events

February 15, 2023: CoreDX DDS Performance, Webinar

March 20-24, 2023: OMG Technical Meeting, Reston, VA, USA

June 19-23, 2023: OMG Technical Meeting, Orlando, FL, USA

September 12, 2023: FACE & SOSA TIM & Expo, Location TBD, USA

November 27 - December 1, 2023: I/ITSEC, Orlando, FL, USA

December 11-13, 2023: AOC International Symposium and Convention, Washington, DC, USA