Comments (4)
Thanks for getting back so quickly. I tried running two instances of the example and both didn't have any output. I'll try running another implementation as you suggest to test it out.
I don't know where to help. Is there an area in particular that needs work? Is there a roadmap or a list of outstanding features that still need implementing? I haven't looked through the crate much yet.
No, there is no explicit list anywhere.
We are still missing many DDS features. One conceptually straightforward one could be implementing data fragmentation, i.e. support for transporting larger samples than can be put in a single UDP packet. The amount of work is nontrivial, though. A starting point in code is in reader.rs. The lower levels are untested, and upper level handling of fragments missing, also on the writer side.
The basic data transfer submessages are Data, Heartbeat, and AckNack. The fragmented data transfer uses (partially) different submessages: DataFrag, HeartbeatFrag, and NackFrag. Note that they are not completely analogous, i.e. HeartbeatFrag is used only when partial data is available, and normal Heartbeat once all the fragments are ready to be sent. NackFrag communicates only negative acknowledgments, whereas normal AckNack contains both positive and negative. The authoritative specification for all of this is the RTPS spec. Maybe not the best choice for light reading, but I do not know of any better source.
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It worked the last time we tried. How did you test?
The shapes demo is supposed to show communication with another DDS implementation, so you need the other participant too, e.g. https://github.com/eProsima/ShapesDemo or try googling for "dds shapes demo download" for other alternatives. So you need to run both the RustDDS example and the other Shapes demo implementation at the same time.
Contributions are welcome! What would you like to do?
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Thanks for getting back so quickly. I tried running two instances of the example and both didn't have any output. I'll try running another implementation as you suggest to test it out.
I don't know where to help. Is there an area in particular that needs work? Is there a roadmap or a list of outstanding features that still need implementing? I haven't looked through the crate much yet.
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I see the example working now with the ShapesDemo you suggested. Thanks!
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Related Issues (20)
- Malformed locator triggers panic while the port field is being unwrapped HOT 2
- Malformed `readerSNState` in ACKNACK submessage triggers panic (add overflow) HOT 2
- Remotely reachable `todo!()`s HOT 2
- panic due to a malformed INFO_REPLY submessage HOT 2
- busy looping on DataReader.take() HOT 6
- Bug in the example code shape_demo_mio_08? HOT 1
- Durable writer only keeps/sends samples written after some time HOT 3
- How to tell if a discovered topic is for a reader or writer HOT 3
- Derive serde::{Deserialize, Serialize} for QosPolicies HOT 1
- Access SampleInfo from async reader interface HOT 1
- Sample source timestamp not preserved for separate domain participants HOT 2
- Reliable reader delayed reception of FastDDS shapes HOT 4
- Why does my subscriber miss the first 2 published samples? HOT 5
- Reception lag of 2 samples with some QoS settings HOT 3
- Interoperability problem with OpenDDS Shapes demo HOT 4
- On mac air with m1 chip , find cannot bind the request address HOT 1
- High latency for large messages HOT 1
- DDS Generator HOT 4
- Identified multiple memory leaks in listeners HOT 3
- Received unknown submessage kind HEARTBEAT_FRAG HOT 5
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