RTI Core Libraries and Utilities

With the default QoS for send window size, a reliable writer using KEEP_LAST history may block on write

Note : This solution applies to RTI Data Distribution Service 4.5c. Applications that use writers with KEEP_LAST history may behave differently when built with 4.5c, compromising backward compatibility. Previously, a reliable write would not block under default QoS, as its queue was allowed to grow ...
ken
Thu, 01/17/2013 - 11:59
4907 reads — 1 comment

Why doesn't discovery complete when I run over an RS-232 PPP link on Windows XP SP2?

Note: Applies to RTI Data Distribution Service 4.x. When running RTI Data Distribution Service over an RS-232 PPP link on a Windows XP system with Service Pack 2, you might see the following PPP Server error: WSASendTo() is failing with the error code 10022, WSAEINVAL. This error occurs because the ...
abhi
Thu, 01/17/2013 - 11:58
2027 reads — 0 comments

Summary and typical use cases for different Quality of Service (QoS) parameters

The follow list describes each of the Quality of Service (QoS) parameters and some common use cases for them. Asynchronous Publisher Configures the mechanism that sends user data in an external middleware thread. Can be used to reduce the amount of time spent in the user thread to send data. In RTI ...
yusheng
Thu, 01/17/2013 - 11:55
19945 reads — 2 comments

How do I get a DataReader to ignore a DataWriter that belongs to the same DomainParticipant?

We do support the ability for local DataWriters and DataReaders of the same topic to ignore each other, i.e., the local DataReader to only receive messages from remote DataWriters , not local ones. To do so, you can call ignore_participant() . For example: DDSDomainParticipant *dP; dP-> ...
dstockdill
Thu, 01/17/2013 - 11:54
8270 reads — 0 comments

How do I set up my publisher and subscriber to only send/receive data from a particular network card?

Note: Applies to RTI Connext 4.1 and above. Use the transport properties for the UDPv4 transport to restrict which interfaces the transport will attempt to use. The properties allow you to either use an "allow" list (to specifically allow certain interfaces), or a "deny" list (to specifically deny ...
tron
Thu, 01/17/2013 - 11:52
5323 reads — 0 comments

What causes an “unexpected token” error when running rtiddsgen on an IDL?

Note: Applies to RTI Connext 4.5c and above. This solution applies if you are seeing errors during rtiddsgen code-generation which look like the following (rtiddsgen used with –language java for this example): javax.xml.transform.TransformerException: org.xml.sax.SAXException: /p8core/interface/ ...
ken
Thu, 01/17/2013 - 11:51
7415 reads — 0 comments

Are all RTI Connext API calls thread-safe?

Not all API calls are safe. In general, the get / set_default_XXX_qos() and lookup_xxx() APIs are not thread-safe. The online HTML documentation for various API calls commonly include one or more MT Safety sections which describe any concerns about the use of individual calls in multi-threaded ...
dstringer
Thu, 01/17/2013 - 11:50
4509 reads — 0 comments

Can I use Java 1.6 with rtiddsgen?

Note: Applies to RTI Connext 4.4c and higher. By default, rtiddsgen uses JRE 1.4, which is distributed with RTI Connext in $NDDSHOME/jre . If you can not use JRE 1.4 on your computer, the following instructions can help you run rtiddsgen with a Java 5 or Java 6 JRE. To use rtiddsgen with Java 1.6, ...
yusheng
Thu, 01/17/2013 - 11:48
3072 reads — 0 comments

How can I improve my throughput performance on Linux?

One potential cause of poor performance on a Linux system is the amount of buffer space the RHEL 4u4 kernel uses to reassemble IP fragments. The parameters in /proc/sys/net/ipv4 control various aspects of the network, including a parameter that controlls the reassembly buffer size. ...
gianpiero
Thu, 01/17/2013 - 11:47
17865 reads — 0 comments

Does RTI Connext support the IDL data-types "interface" and "valuetype"?

Note: Applies to RTI Connext 4.x and above RTI Connext does not support the IDL interface data type because it corresponds to remote procedure calls, a concept that does not apply to the data-centric, publish-subscribe (DCPS) communications model of the DDS standard. The valuetype data type is ...
dstockdill
Thu, 01/17/2013 - 11:46
5308 reads — 0 comments

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