code examples

My NDDSHOME environment variable has a space in the path, why aren’t the shipped examples compiling?

If you are running into problems compiling the shipped examples or the generated Hello World example from rtiddsgen on a non-Windows platform, one of the first things to check is if your installation directory resides in a path that contains spaces. If it does, then the solution will be to redefine ...
erin
Fri, 05/29/2015 - 14:34
10281 reads — 0 comments

Example Code - Status Print to .csv File

Note: Applies to RTI Connext 4.3 and above, although the same methodology can be applied to 4.0, 4.1, and 4.2. The following example has been written in C++. Purpose This example illustrates how to extract and print Datawriter and Datareader statuses to a Comma-Separated Values (csv) file. This ...
gianpiero
Thu, 01/17/2013 - 12:47
5467 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
4163 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
5704 reads — 0 comments

Why does my subscriber report multiple liveliness change events when I kill my publisher?

Note: Applies to RTI Connext 4.x and above. Upon changing the liveliness lease duration of both the DataReader and DataWriter , and instrumenting the on_liveliness_changed() listener callback on the reader side, you will see the callback is called twice when you kill the publishing application. ...
gianpiero
Thu, 01/17/2013 - 12:23
5623 reads — 0 comments

What is the purpose of the narrow() method created for a type by rtiddsgen?

Note: Applies to RTI Connext 4.x and above The narrow method is a class-scope method that implements a safe down-cast for a pointer to an RTI Connext entity. It is a type-safe way to cast a pointer. The Java API does not require this method because Java casts are always type-safe. This method takes ...
gianpiero
Thu, 01/17/2013 - 11:35
6143 reads — 0 comments

How do I use the RtiNtpTime structure?

Note: Applies to NDDS 3.x. NDDS's internal time representation is in NTP format rather than DDS_Time for computational efficiency reasons. The header osapi/osapi_ntptime.h defines NTP time class ( struct RTINtpTime ) as well as its manipulation methods. A brief excerpt from this header file is ...
gianpiero
Thu, 01/17/2013 - 11:26
3374 reads — 0 comments

How do I get a data reader to receive data over multicast?

Prior to RTI Data Distribution Service version 4.4, receiving data over multicast could only be configured on the reader side. The reader Qos specifies to the writer that it wants to receive data using a multicast address. Starting with RTI Data Distribution Service 4.4, in addition to the ...
belen
Thu, 01/17/2013 - 08:11
9926 reads — 0 comments

Why does my DDS DataReader miss the first few samples?

Note : Applies to RTI Connext 4.x and above. Discovery is not an instantaneous event. It takes some time for the discovery process between applications to complete. The DDS DataWriter and DDS DataReader must discover each other before they can start communicating. Therefore, if you send data ...
Juanjo Martin
Thu, 01/17/2013 - 08:10
15773 reads — 0 comments

Why is my VxWorks application unable to discover other RTI Connext applications after a restart?

Note: Applies to RTI Connext 4.x and above For dynamic discovery to work properly, RTI Connext relies on a globally unique identifier (GUID) that uniquely identifies each instance of a participant in the network. By default, RTI Connext will automatically choose values for the host ID and app ID ...
sara
Thu, 01/17/2013 - 08:01
10063 reads — 3 comments

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