RTI Core Libraries and Utilities

Why two applications cannot communicate using shared memory when their network interface cards are different

RTI Connext DDS assigns a number, called a GUID, to each entity in order to uniquely identify it for the discovery process to work correctly. You can control how to set the GUID using the value assigned to rtps_auto_id_kind . For more information, see Controlling How the GUID is Set ( ...
acasado
Wed, 12/20/2017 - 07:43
5947 reads — 0 comments

Using default domain announcements to find participants on different domains

RTI Connext DDS uses a special discovery mechanism that allows RTI Tools such as Admin Console to find participants on different domains. The messages that make this possible are called default domain announcements. RTI Connext provides a couple of QoS settings that allow this special discovery ...
Marc.Chiesa
Tue, 12/19/2017 - 14:33
7208 reads — 0 comments

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
13956 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
16517 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
16775 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
6206 reads — 0 comments

Communicate two Docker containers using RTI Connext DDS over shared memory

Introduction Containers can communicate using Connext over Shared Memory with one another and with the host machine using interprocess communication (IPC). This is available in Docker as explained in the Docker’s documentation: IPC (POSIX/SysV IPC) namespace provides separation of named shared ...
israel
Mon, 10/02/2017 - 09:52
22013 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
14356 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
7516 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
8975 reads — 0 comments

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