7.4. Connext DDS features¶
Because RTI Connector is a simplified API, it provides access to a subset of the features in RTI Connext DDS.
In addition to the functionality described in the rest of this documentation, this section summarizes the support that Connector provides for some notable Connext DDS features.
7.4.1. General features¶
|Feature||Level of support||Notes|
|Quality of Service (QoS)||Partial||
Most QoS policies are supported because they can be configured in XML, but those that are designed to be mutable can’t be changed in Connector. QoS policies that require a supporting API may have limited or no support.
A few examples of QoS policies that are fully supported in Connector:
A few examples of QoS policies that are supported but can’t be changed in Connector even though they are mutable by design and changeable in other APIs:
A few examples of QoS policies that have limited support because they require a supporting API that is not available in Connector:
|Managing Data Instances||Partial||On an
DDS_APPLICATION_AUTO_ACKNOWLEDGMENT_MODE is supported. If enabled, when a call to
DDS_APPLICATION_EXPLICIT_ACKNOWLEDGMENT_MODE is not supported.
The correlation between two samples can be established at the application level:
|Zero Copy Transfer Over Shared Memory||Not supported||Only available in C and C++.|
|Built-in Topics||Not supported||API not available.|
|Transport Plugins||Partial||The built-in transports can be configured in XML.|
|Add-on Libraries (such as Monitoring, Security Plugins )||Supported||See Loading Connext DDS Add-On Libraries.|
7.4.5. Loading Connext DDS Add-On Libraries¶
Connector supports features that require the loading of additional Connext DDS libraries, such as Monitoring and Security Plugins.
The Monitoring and Security plugins are configured in XML, as described in the previous links.
To use RTI Connext DDS add-ons you need an RTI Connext DDS installation. To configure your environment so that Connector can load these additional libraries:
Set your environment using:
$ source <Connext DDS installation directory>/resource/scripts/rtisetenv_<architecture>.bash
> <Connext DDS installation directory>\resource\scripts\rtisetenv_<architecture>.bat
Or set your system’s library path to:
<Connext DDS installation directory>\lib\<architecture>\
Each version of Connector can only load add-on libraries from its corresponding Connext DDS release. You can see this correspondence in the Release Notes. For example, Connector 1.1.0 can only load Connext DDS 6.1.0 add-on libraries.