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libct: add/use configs.HasHook #4433

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  1. libct: add/use configs.HasHook

    This allows to omit a call to c.currentOCIState (which can be somewhat
    costly when there are many annotations) when the hooks of a given kind
    won't be run.

  2. libct: don't pass SpecState to init unless needed

    SpecState field of initConfig is only needed to run hooks that are
    executed inside a container -- namely CreateContainer and
    StartContainer.

    If these hooks are not configured, there is no need to fill, marshal and
    unmarshal SpecState.

@kolyshkin kolyshkin force-pushed the hasHook branch 2 times, most recently from 5a98014 to 76cabbc Compare October 10, 2024 19:16
@kolyshkin kolyshkin requested a review from cyphar October 10, 2024 19:16
This allows to omit a call to c.currentOCIState (which can be somewhat
costly when there are many annotations) when the hooks of a given kind
won't be run.

Signed-off-by: Kir Kolyshkin <[email protected]>
SpecState field of initConfig is only needed to run hooks that are
executed inside a container -- namely CreateContainer and
StartContainer.

If these hooks are not configured, there is no need to fill, marshal and
unmarshal SpecState.

While at it, inline updateSpecState as it is trivial and only has one user.

Signed-off-by: Kir Kolyshkin <[email protected]>
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Rebased, resolving the conflict after #4312 merge. PTAL @opencontainers/runc-maintainers, this is an easy to review one.

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4 participants