6.2. Define a Data Type

To distribute data using Connext Cert, you must first define a data type, then run the rtiddsgen utility. This utility will generate the type-specific support code that Connext Cert needs and the code that makes calls to publish and subscribe to that data type.

Connext Cert accepts types definitions in Interface Definition Language (IDL) format.

For instance, the HelloWorld examples provided with Connext Cert use this simple type, which contains a string “msg” with a maximum length of 128 chars:

::

    struct HelloWorld
    {
           string<128> msg;
    };

For more details, see Data Types in the User’s Manual.