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Methods to retrieve matched counts on publisher and subscriber #155

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merged 4 commits into from
Nov 28, 2018
Merged

Methods to retrieve matched counts on publisher and subscriber #155

merged 4 commits into from
Nov 28, 2018

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mjcarroll
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@mjcarroll mjcarroll commented Nov 12, 2018 •
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This provides an API for retrieving the number of matched publishers to a subscription and vice-versa. It is a method to be used with forthcoming additions in creating a port of SubscriberStatusCallback (from ROS 1, see: https://docs.ros.org/api/roscpp/html/namespaceros.html#ac61b99a2913cd421fb915395a67e71a1) for ROS2.

This is different from the existing graph methods, as it should interact directly with a publisher or subscription to retrieve the matched count.

Requires changes in:

@mjcarroll mjcarroll added the in progress Actively being worked on (Kanban column) label Nov 12, 2018
@mjcarroll mjcarroll mentioned this pull request Nov 12, 2018
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jacobperron approved these changes Nov 13, 2018
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Other than two typos, LGTM

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CI:

  • Linux Build Status
  • Linux-aarch64 Build Status
  • macOS Build Status
  • Windows Build Status

@mjcarroll mjcarroll added in review Waiting for review (Kanban column) and removed in progress Actively being worked on (Kanban column) labels Nov 27, 2018
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lgtm

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@wjwwood @mjcarroll
Apply suggestions from code review
b6c3b57 
Co-Authored-By: mjcarroll <michael@openrobotics.org>
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Rerun CI after all changes:

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Once more with rebased rmw_fastrtps:

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@mjcarroll mjcarroll merged commit c3b7077 into master Nov 28, 2018
@mjcarroll mjcarroll removed the in review Waiting for review (Kanban column) label Nov 28, 2018
@wjwwood wjwwood deleted the subscriber_status_callback branch December 19, 2018 19:59
@mjcarroll mjcarroll mentioned this pull request Jan 17, 2019
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@dirk-thomas dirk-thomas mentioned this pull request Feb 7, 2019
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dabonnie pushed a commit to aws-ros-dev/rmw that referenced this pull request Apr 2, 2019
@mjcarroll @dabonnie
Methods to retrieve matched counts on publisher and subscriber (ros2#155
81d4c45 
)

* Methods to retrieve matched counts on pub/sub.

* Address reviewer feedback with naming and docs.

* Fix typos.

* Apply suggestions from code review

Co-Authored-By: mjcarroll <michael@openrobotics.org>
Signed-off-by: Devin Bonnie <dbbonnie@amazon.com>
@AndreasR30 AndreasR30 mentioned this pull request Oct 6, 2022
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This pull request enables the feature getNumSubscribers() on a publisher but it does not enable your mentioned ROS1 feature SubscriberStatusCallback. Is there any chance to get this feature back in ROS2?

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@AndreasR30 probably #331 this is what you need? you are very much welcome for the review!

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