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introduce RMW_EVENT_TYPE_MAX in rmw_event_type_t. #518

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introduce RMW_EVENT_TYPE_MAX in rmw_event_type_t. #518

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depends on ros2/rmw#380

fujitatomoya
fujitatomoya commented Oct 16, 2024
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reference why we change this: ros2/rmw#380 (comment)

@fujitatomoya fujitatomoya mentioned this pull request Oct 16, 2024
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Pulls: ros2/rmw#380, ros2/rmw_fastrtps#785, ros2/rmw_connextdds#162, #518
Gist: https://gist.githubusercontent.com/fujitatomoya/a5a27e64c97e3b687ed9c85018393aef/raw/398849da025367226392ce4eacd4f8114a09b768/ros2.repos
BUILD args: --packages-above-and-dependencies rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
TEST args: --packages-above rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14711

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This was referenced Oct 16, 2024
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Pulls: ros2/rmw#380, ros2/rmw_fastrtps#785, ros2/rmw_connextdds#162, #518
Gist: https://gist.githubusercontent.com/fujitatomoya/6abc026e02c2c115a589c04c79e23c39/raw/398849da025367226392ce4eacd4f8114a09b768/ros2.repos
BUILD args: --packages-above-and-dependencies rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
TEST args: --packages-above rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14714

  • Linux Build Status
  • Linux-aarch64 Build Status
  • Linux-rhel Build Status
  • Windows Build Status

eboasson
eboasson reviewed Oct 17, 2024
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Hi @fujitatomoya ! It is fine as it is but there is one thing I would do slightly differently: I would either also add it to rmw_take_event to maintain the pattern, or I would remove RMW_EVENT_INVALID there because init_rmw_event can never produce an rmw_event_t with that event type.

I don't like defaults in switches over enums, precisely because it prevents the compiler from helping me checking all relevant locations. I'm pretty sure if the default: unreachable wasn't present in rmw_take_event, you'd have added a case there, too 🙂

So I lean towards the former of my two suggestions, add RMW_EVENT_TYPE_MAX, and then also drop the unnecessary default case.

That said, there are more of those defaults ... Process-wise, dropping those unnecessary defaults might be better done in a separate PR. What do you think?

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@eboasson

I don't like defaults in switches over enums, precisely because it prevents the compiler from helping me checking all relevant locations. I'm pretty sure if the default: unreachable wasn't present in rmw_take_event, you'd have added a case there, too

so true. i would have added a case there...

So I lean towards the former of my two suggestions, add RMW_EVENT_TYPE_MAX, and then also drop the unnecessary default case.

agree.

That said, there are more of those defaults ... Process-wise, dropping those unnecessary defaults might be better done in a separate PR. What do you think?

agree too.

thanks!

@fujitatomoya fujitatomoya mentioned this pull request Oct 17, 2024
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Pulls: ros2/rmw#380, ros2/rmw_fastrtps#785, ros2/rmw_connextdds#162, #518
Gist: https://gist.githubusercontent.com/fujitatomoya/82891bb189950fefcf68c0f191365af1/raw/398849da025367226392ce4eacd4f8114a09b768/ros2.repos
BUILD args: --packages-above-and-dependencies rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
TEST args: --packages-above rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14720

  • Linux Build Status
  • Linux-aarch64 Build Status
  • Linux-rhel Build Status
  • Windows Build Status

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Pulls: ros2/rmw#380, ros2/rmw_fastrtps#785, ros2/rmw_connextdds#162, #518
Gist: https://gist.githubusercontent.com/fujitatomoya/16961ebf1f4059173817c9730b42d685/raw/398849da025367226392ce4eacd4f8114a09b768/ros2.repos
BUILD args: --packages-above-and-dependencies rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
TEST args: --packages-above rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14722

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  • Windows Build Status

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fujitatomoya commented Oct 19, 2024 •
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Pulls: ros2/rmw#380, ros2/rmw_fastrtps#785, ros2/rmw_connextdds#162, #518
Gist: https://gist.githubusercontent.com/fujitatomoya/065211cb8895027ee0a710a50b6a9851/raw/398849da025367226392ce4eacd4f8114a09b768/ros2.repos
BUILD args: --packages-above-and-dependencies rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
TEST args: --packages-above rmw rmw_fastrtps_shared_cpp rmw_connextdds_common rmw_cyclonedds_cpp
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14726

  • Linux Build Status
  • Linux-aarch64 Build Status
  • Linux-rhel Build Status
  • Windows Build Status

eboasson
eboasson approved these changes Oct 22, 2024
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LGTM!

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@eboasson thanks for the review, CI is all green so just waiting for ros2/rmw#380 lgtm.

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@eboasson eboasson eboasson approved these changes

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