Linux

Beginning with RTI Connext DDS 7.2.0 , RTI added support for operating beyond the Year 2038 time rollover issue. Systems running Connext DDS 7.2.0 or later can operate correctly through the year 2106. What Changed? To address the Year 2038 limitation, RTI updated how time values are represented: ...
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Summary On Linux/Windows and potentially other operating systems, when a DataWriter sends data samples to a multicast address, the performance of the underlying UDP sendmsg() call varies depending on whether multicast DataReaders are located on the same local host. If there are no local, multicast ...
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On Linux systems, if you are creating a DomainParticipant with Security Plugins enabled, and your application is linked to both TensorFlow and OpenSSL , you may see errors like this: RTI_Security_Util_uriToStringOssl:OpenSSL function PEM_write_bio_X509 failed with error: error:0c00009b:ASN.1 ...
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The shared memory built-in transport in RTI Connext uses IPC segments and semaphores under the hood to perform DDS communication between DomainParticipants. It is important that those IPC resources are not destroyed while RTI Connext applications are using them. Failure to do so may result in ...
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When using asynchronous publication and Best Effort reliability, you may see the warning: PRESWriterHistoryDriver_completeBeAsynchPub:!make_sample_reclaimable in topic 'MyTopic' This warning message may be caused by a small history depth you are configuring. Since you are using asynchronous ...
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Jitter when making API calls can result in inconsistent execution time for making those calls. For example, the median call to return_loan() may take ~4,500 nanoseconds, but there could be execution outliers that take 5-10x this median time. What could cause this kind of behavior? The cause of such ...
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Connext applications can enjoy consistent "me-first" execution by running at an elevated priority on the Linux RT_PREEMPT kernel. RT_PREEMPT is a kernel enhancement that enables real-time preemption and settable priorities for processes and threads, similar to an RTOS. This can be put to use for ...
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In Connext DDS Professional 6.1.0 and above, a new UDP-based transport is available for communicating over a wide area network (WAN). The Real-Time WAN Transport is a smart transport that enables secure, scalable, and high-performance communication over WANs, including public networks. Real-Time ...
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When using certain restrictive umask settings, the RTI Connext installer may cause the GNOME desktop environment to lock up and prevent access to the desktop environment of a device. You can work around this issue by setting a more permissive umask, running the installer, and restoring the restrictive umask afterward. ...
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This article describes the procedure to build and run Code Generator ( rtiddsgen ) examples directly on an embedded target. We will use a Raspberry Pi for this example, but the procedure is similar for other embedded targets. In order to build directly on the target, the target must include a ...
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