RTI Core Libraries and Utilities

How do I eliminate the long startup delay on some VxWorks targets with no file system?

Note: Applies to RTI Connext 4.x and above. RTI Connext calls fopen() to load the default XML and NDDS_DISCOVERY_PEERS files if they exist. On some VxWorks targets that either have no file system or use NFS, FTP, or some other network-based file system, and the file system is not mounted, RTI ...
ken
Thu, 01/17/2013 - 12:10
5503 reads — 0 comments

Why does rtiddsgen require a C preprocessor for its code generation? Why does rtiddsgen try to locate cc1plus?

Before processing an IDL file, rtiddsgen attempts to run a C preprocessor to support #if tests and related preprocessor directives. There are several options you can pass to rtiddsgen to control preprocessor use, including: -ppDisable (formerly -ppNotRun ) : Don't use the C preprocessor -ppPath : ...
alex
Thu, 01/17/2013 - 12:07
4887 reads — 0 comments

Why is multicast not working on my LynxOS target?

Note: Applies to NDDS 3.x, RTI Connext 4.x and above. The LynxOS 4.0 IP stack (and many other BSD-derived network stacks) will fail to send multicast messages unless there is an entry in the routing table that matches the destination multicast IP address. In practice, this means that either: a ...
memo.salas
Thu, 01/17/2013 - 12:07
5149 reads — 0 comments

What does "shmat() failure, error 0x18" mean on a Solaris system?

This solution addresses the following error message on Solaris systems: RTIOsapiSharedMemorySegment_attach:OS shmat() failure, error 0X18 NDDS_Transport_Shmem_attach_writer:failed to initialize shared memory resourcesegment for key 0x4020d0 Error message 0x18 on a Solaris system means that the ...
gianpiero
Thu, 01/17/2013 - 12:07
5205 reads — 0 comments

Why can't I communicate over loopback, but can using shared memory?

NOTE: Applies to RTI Data Distribution Service 4.1 and 4.2 By default, RTI Data Distribution Service uses shared memory to communicate with other DomainParticipants on the same node and disables local traffic over the UDPv4 or UDPv6 loopback interface. So, by default, an RTI Data Distribution ...
abhi
Thu, 01/17/2013 - 12:07
6988 reads — 0 comments

How do I change the multicast time-to-live (TTL)?

Note: Applies to RTI Connext 4.x and above RTI Connext 4.x and above uses a default multicast time-to-live (TTL) value of 1. This means that, by default, multicast traffic will not cross subnet boundaries. The TTL value can be adjusted in the transport property. Method One for modifying the TTL ( ...
waffletchnlgy
Thu, 01/17/2013 - 12:06
15586 reads — 0 comments

Why doesn't my RTI Connext application communicate with an RTI Connext application installed as a Windows Service?

Note: Applies to RTI Connext 4.x and above. An RTI Connext application installed as a Windows Service application (formerly known as an NT service) will not communicate over shared memory with a DDS application that is not installed as a Windows Service. This is due to the namespace used to create ...
vishal
Thu, 01/17/2013 - 12:05
6905 reads — 0 comments

Why does my application hang on Windows when deleting the participant?

Note: Applies to RTI Data Distribution Service 4.4b and below If a network interface is disconnected or disabled while your application is running, your application might hang when properly shutting down your DomainParticipant. The likely cause is how the middleware cleans up sockets and how ...
yusheng
Thu, 01/17/2013 - 12:03
4571 reads — 0 comments

Why do I get an inconsistent QoS error when recompiling my 4.1e application for 4.2e?

One of the more common reasons is due to the parameter late_joiner_heartbeat_period (part of DDS_RtpsReliableWriterProtocol_t , used in the DataWriterProtocolQosPolicy and DisoveryConfigQosPolicy ) which is new in RTI Data Distribution Service 4.2. late_joiner_heartbeat_period is used when a ...
gianpiero
Thu, 01/17/2013 - 12:03
5176 reads — 0 comments

How do I use keys when using a union?

In general, rtiddsgen only recognizes keys in the outermost structure. To consider the keys in embedded structures, the outer member needs to be a key as well. In the example below, rtiddsgen will not recognize mykey as a key for union A , struct B , or struct C . struct D { long mykey; //@key long ...
alex
Thu, 01/17/2013 - 12:01
5564 reads — 0 comments

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