C++

How to choose QNX target libraries

“Note: This article applies to Connext DDS Professional 4.x and above” The QNX operating system provides in its SDK a front-end that calls a GCC named “qcc”. In the end, qcc will call the compiler, set the correct flags and link libraries based on the parameters that you use. The SDK provides the C ...
pablov
Wed, 08/28/2019 - 09:04
5263 reads — 0 comments

NDDSUtility_sleep() issues on macOS systems

If you are running on a macOS® 10.9 (Mavericks) system (or higher), you may experience timing issues in your calls to NDDSUtility_sleep(). If you request to sleep for a small enough time period, you will notice that the actual sleep time is significantly longer. ...
Jesus Checa
Mon, 05/20/2019 - 07:10
2233 reads — 0 comments

Dynamic Data: How to access multi-level nesting elements using C++11

Concept With this example, you will learn how to manage complex objects with several levels of nesting and different kinds of members programmatically on an unknown structure. RTIⓇ ConnextⓇ DDS provides tools to access the different members independently if they are a primitive type, struct type, ...
jmuros
Wed, 04/10/2019 - 09:45
2949 reads — 1 comment

Differences between the Modern and Traditional C++ APIs

The modern C++ API feels very different from the traditional one. Understanding a few key concepts and the main differences with respect to the traditional C++ API can help you write code that is much more concise and robust. The modern C++ API Conventions document describes the intended use of the ...
samr
Tue, 04/02/2019 - 05:05
7052 reads — 2 comments

When do I need to send TypeCode or TypeObject?

Note: Applies to Connext DDS 5.x and above Sending TypeCode/TypeObject on the wire provides convenience over specifying the type via XML configuration, but has the disadvantage that more data must be sent during endpoint discovery. This can cause network congestion problems when the TypeCode/ ...
grayson
Thu, 03/14/2019 - 11:48
4833 reads — 0 comments

Updated 5.3.x Security Files

The identity certificates that were shipped with Connext 5.3.1 expired on February 16th, 2019. Therefore, creating a DomainParticipant that tries to use those certificates will fail and will report different problems. This solution documents the most common error messages and provides a set of new certificates, private keys, signed governance, and signed permissions documents valid through February 2029. ...
yusheng
Wed, 02/13/2019 - 13:53
3344 reads — 0 comments

FlatData and ZeroCopy examples

Connext 6 introduces two features: Zero Copy Transfer over Shared Memory and FlatData Language Binding . These features enable the middleware to reduce the number of copies involved in sending a sample, resulting in lower latencies for large data. The following examples show how to use these ...
alexc
Mon, 01/21/2019 - 09:25
35208 reads — 0 comments

Reading RTI Monitor data from a DDS application

What is the Monitoring Library and how do I enable it? RTI Monitoring Library is a plug-in that enables an RTI Connext DDS application to provide monitoring data. This data can be visualized using the RTI Monitor application or read by a separate, user-created application. In RTI Connext DDS , ...
isabel
Tue, 11/07/2017 - 09:48
9176 reads — 0 comments

How to Filter Samples using RTI Connext DDS Micro

Differences between Filtering Data using RTI Connext DDS Professional and RTI Connext DDS Micro There are several differences when using RTI Connext DDS Professional and RTI Connext DDS Micro; one of them is how to filter the samples that the subscriber will receive. RTI Connext DDS Professional ...
manuelBaena
Fri, 10/27/2017 - 03:03
4447 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
4948 reads — 0 comments

Pages

Subscribe to RSS - C++