RTI Core Libraries and Utilities

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
6156 reads — 2 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
7978 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
4430 reads — 0 comments

How do I tune the SENS/TORNADO 2.0 Network Stack?

SENS/TORNADO 2.0 NETWORK STACK CONFIGURATION/PERFORMANCE ISSUES -------------------------------- 1. INTRODUCTION 1.1 NETWORK STACK VERSIONS 1.2 NET POOLS 1.2.1 CLUSTERS 1.2.2 CLUSTER BLOCKS 1.2.3 MBLOCKS 1.3 RECEIVING: DATA FLOW FROM DRIVER TO APPLICATION LEVEL 1.4 SENDING: DATA FLOW FROM ...
waffletchnlgy
Thu, 01/17/2013 - 12:35
10960 reads — 0 comments

What are the requirements for using the Legacy .NET API?

Note: Applies to the legacy RTI Connext .NET API (4.3e to 6.1). For the new .NET API (6.1 and above), see the Getting Started Guide . For applications to use the RTI Connext .NET API, the following MUST be true for the target machine: The Microsoft .NET Framework Version 2.0 Redistributable Package ...
gianpiero
Thu, 01/17/2013 - 12:32
7810 reads — 0 comments

What QoS policies do I need to change when creating a reliable reader and writer?

This Solution addresses how to create a reader and a writer that use reliable communication. It also shows, by example, some of the more common QoS policies that you might want to change. Method One for modifying the QoS The following C++ code snippet shows how to change those QoS policies. Data ...
tron
Thu, 01/17/2013 - 12:32
8322 reads — 0 comments

Example Code - Achieving 'Batching' by setting push-on-write to false

Note: Applies to RTI Connext 4.0 and above. This example shows how to achieve batching without using the Batch QoS policy (which was introduced in 4.4). Publisher This Publisher sends out bursts of 32 keyed reliable samples at 20Hz. The point here is that the dataWriterQos.protocol.push_on_write = ...
ken
Thu, 01/17/2013 - 12:32
5739 reads — 0 comments

Why don't I see any builtin topic data when subscribing to DDS_TopicBuiltinTopicData?

Note: Applies to RTI Data Distribution Service 4.1 and above. The DDS_TopicBuiltinTopicData built-in topic is meant to convey information about discovered Topics. It is a known issue in RTI Data Distribution Service 4.1 and 4.2 that these topic samples are not propagated in a separate packet on the ...
edward
Thu, 01/17/2013 - 12:28
2500 reads — 0 comments

What do 'setsockopt ADD_MEMBERSHIP' errors mean?

This message can be recieved when creating a new reader listening on a multicast group: setsockopt(ADD_MEMBERSHIP) error 0X62 The hex code may differ across platforms — EADDRINUSE is 98 on Linux, 125 on Solaris — check your system's errno.h to be sure. RTI middleware can share receive-resources ...
gianpiero
Thu, 01/17/2013 - 12:28
6220 reads — 1 comment

How much shared memory is required by RTI Connext applications?

Note: Applies to RTI Connext 4.x and above. By default, every time you create a DDS participant with SHMEM transport enabled, the middleware creates two shared memory segments: one to receive discovery traffic and one to receive user traffic. Each one of the shared memory segments will contain a ...
gianpiero
Thu, 01/17/2013 - 12:26
7722 reads — 0 comments

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