ros2 / ros2/rclcpp

Ordered single-threaded executor

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backlog enhancement
Dominant language
C++
Stars
805
Forks
564
Avg merge
1d 17h
Merged PRs (30d)
27

Description

Suggestion from @adolfo-rt:

Currently the ordering of tasks in the single-threaded executor is not exposed to the user. It should be possible to implement a single-threaded executor in which task execution ordering can be specified by the user. This is to further decouple the component topology from its thread execution.

Not a high priority for the current milestone (ROSCon demos) but an eventual goal.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the single-threaded executor and how it currently orders task execution. The issue names no files or tests, so first determine the relevant executor entry points and how ordering could be specified by users. Done means exposing user-defined task ordering while further decoupling component topology from thread execution.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
backend
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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