Solutions

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
3455 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
3971 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
7087 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
14261 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
8896 reads — 0 comments

What causes the error "Unexpected tag 'disable_positive_acks_decrease_sample_keep_duration_scaler'"?

Note: This article applies to RTI Connext DDS version 4.4c and higher. The error indicates that the XML parser encountered a tag for a field that doesn't exist in 4.4c and higher, because it was renamed. Two fields in the DataWriter's protocol.rtps_reliable_writer QoS were renamed in 4.4c: Old name ...
memo.salas
Thu, 01/17/2013 - 12:36
5085 reads — 0 comments

What causes the message "The NPF driver isn't running." when running RTI Protocol Analyzer with Wireshark on a Windows Vista system?

RTI Protocol Analyzer with Wireshark uses the Windows Packet capture ( WinPcap ) driver (called NPF) when it starts to capture live data. Loading the driver requires Administrator privileges. Once the NPF driver is loaded, every local user can capture from the driver until it is stopped. On Windows ...
erin
Thu, 01/17/2013 - 12:36
47184 reads — 0 comments

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