Solutions

Why do I see error messages about unreachable destinations?

Note: Applies to RTI Data Distribution Service 4.1. If you start an application with shared memory as the only transport and then start a second application with a multicast address in NDDS_DISCOVERY_PEERS or in the multicast_receive_addresses field in the Discovery QosPolicy on the same node, you ...
dstockdill
Thu, 01/17/2013 - 12:42
4742 reads — 0 comments

How do I convert a double type to a RTICdrLongLong type ?

Suppose you have a local variable in your application that is declared as a double (that is, a long long variable declared within an IDL file), and you try to cast it to a RTICdrLongLong variable, like this: double doubleLocalVar = 0; /* Main loop */ for (count=0; (sample_count==0) || (count< ...
gianpiero
Thu, 01/17/2013 - 12:41
5037 reads — 0 comments

What is the minimum heap required to run a simple HelloWorld publisher and subscriber on an INTEGRITY systems?

The minimum heap required to run a simple HelloWorld publisher and subscriber on an INTEGRITY system is about 11.3MB. Problem You run an example HelloWorld application and create_participant() returns NULL. When you increase the logging verbosity, you see messages such as: !create fast buffer pool ...
alex
Thu, 01/17/2013 - 12:40
3708 reads — 0 comments

How do I transition my NDDS 3.x application to RTI Connext 4.x and above?

Note: Applies to NDDS 3.x and RTI Connext 4.x and above First, it is important to point out that NDDS 3.x and RTI Connext 4.x and above are not wire-protocol compatible. Applications built with these 2 products cannot communicate with each other. Second, although the object models of both products ...
yusheng
Thu, 01/17/2013 - 12:40
4219 reads — 0 comments

How do I specify a nested structure as the key for my data type?

This depends on what version of RTI Software you have installed: Version 4.2x and earlier: rtiddsgen only recognizes keys in the outermost structure. Version 4.3x and later: You can specify the key not only in the top-level message but also in nested structures. Let's look at some use cases: 1) You ...
dstringer
Thu, 01/17/2013 - 12:40
7560 reads — 2 comments

How do I know UDP checksum is enabled on my OS?

A simple way to tell whether UDP checksum is enabled is to use Wireshark or tcpdump to display the UDP header. Look at the udp checksum field in the UDP header. If this field is 0x0000, then UDP checksum is disabled; otherwise it is enabled. For example, on a Linux machine, the following command ...
erin
Thu, 01/17/2013 - 12:40
15305 reads — 3 comments

What is the max. number of octets I can put into the topic_data for builtin topics?

As described in the online HTML documentation for the DomainParticipantResourceLimits Qos Policy, there is a QoS parameter called topic_data_max_length , which is used to set the maximum length of the topic data to be sent out. topic_data_max_length is a DDS_Long, which is a 32-bit signed long ...
dstockdill
Thu, 01/17/2013 - 12:37
9316 reads — 0 comments

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