RTI Core Libraries and Utilities

Deploying an RTI Connext DDS Application with Docker

This article assumes familiarity with Docker. For instance, you should know the difference between containers and images, and the purpose of a Dockerfile. If not, visit www.docker.com and get up to speed on Docker basics before reading further. Introduction In this example, we’ll build and deploy a ...
Mike Partington
Tue, 11/28/2017 - 12:12
12360 reads — 0 comments

Creating a Docker image with RTI Connext DDS

This article assumes familiarity with Docker. For instance, you should know the difference between containers and images, and the purpose of a Dockerfile. If not, then visit www.docker.com and get up to speed on Docker basics before reading further. Introduction In this example, we’ll create a ...
Mike Partington
Wed, 11/22/2017 - 11:47
14324 reads — 4 comments

How to use RTI Connext DDS to Communicate Across Docker Containers Using the Host Driver

When using the “host” Docker driver, all network interfaces of the host machine are accessible from the Docker container. Furthermore, there is no networking namespace separation between the Docker containers and the host machine. To run a container in host mode, run the following command: $ docker ...
israel
Mon, 10/30/2017 - 10:16
14786 reads — 0 comments

Multicast for data transfer, for applications on the same node

Multicast over UDPv4 can be used for data transfer between applications that are running on the same machine, even if shared memory is enabled. RTI's Connext DDS provides various transports, which can be configured using the USER_QOS_PROFILES.xml file. The most commonly used transports are shared ...
chirags
Mon, 10/16/2017 - 16:08
5309 reads — 0 comments

Communicate between two Docker containers using RTI Connext DDS and shared memory

Introduction Docker enables containers to communicate with one another and with the host machine using interprocess communication (IPC). As explained in the Docker’s documentation: IPC (POSIX/SysV IPC) namespace provides separation of named shared memory segments, semaphores and message queues. ...
israel
Mon, 10/02/2017 - 09:52
17119 reads — 0 comments

Using UDP for discovery and TCP for user data

RTI Connext DDS allows you to use different transports for communication between endpoints in your application (e.g., shared memory, UDP, TCP, etc.). You can take advantage of this flexibility and use different transports for discovery data and user data in the same application. This article shows ...
Pralhad Sapre
Thu, 09/07/2017 - 14:42
12183 reads — 0 comments

Modern C++ API: why doesn't my DomainParticipant (or other entity) get deleted?

In the Connext DDS modern C++ API, many entities are "reference types" with an automatic lifecycle management based on a shared count (see API documentation ) . Most times you don't need to worry about deleting entities as long as their scope is well defined. However, some times you can forget to ...
alexc
Fri, 09/01/2017 - 14:40
6403 reads — 0 comments

How to generate code for a base and derived IDL in separate DLL files

Note: Applies to RTI Connext DDS 5.2.0 and above. RTI Code Generator has an option called -dllExportMacroSuffix <suffix> , which allows you to configure the macro suffix used to export type plugin symbols when building a Windows DLL. This feature is particularly useful if you want to place ...
Francisco Porcel
Mon, 07/31/2017 - 10:52
7859 reads — 0 comments

How to capture traffic if my Connext DDS applications are communicating through shared memory

Wireshark and tcpdump are very powerful tools which you can use to capture traffic. They may come in handy when debugging issues with your DDS applications. These tools can capture all kinds of packets: RTPS, UDP, TCP, IP… However, they cannot capture traffic if your applications are communicating ...
Francisco Porcel
Fri, 07/28/2017 - 07:38
58072 reads — 0 comments

Configuring DDS to mitigate performance degradation due to packet loss

If you are using Reliable communication, you could see a performance degradation due to packet loss and resending data sample fragments. This is more probable when using data bigger than 1500 Bytes (over Ethernet). In general, a DDS application using a transport such as UDPv4 splits data samples ...
sara
Wed, 07/19/2017 - 02:29
8436 reads — 0 comments

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