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Safe and sane multi-item storage removal (#11490)

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* Fix overlay prefix removal result

* Second part of the overlay prefix removal fix.

* Report only items deleted from storage in clear_prefix

* Fix kill_prefix

* Formatting

* Remove unused code

* Fixes

* Fixes

* Introduce clear_prefix host function v3

* Formatting

* Use v2 for now

* Fixes

* Formatting

* Docs

* Child prefix removal should also hide v3 for now

* Fixes

* Fixes

* Formatting

* Fixes

* apply_to_keys_whle takes start_at

* apply_to_keys_whle takes start_at

* apply_to_keys_whle takes start_at

* Cursor API; force limits

* Use unsafe deprecated functions

* Formatting

* Fixes

* Grumbles

* Fixes

* Docs

* Some nitpicks 🙈

* Update primitives/externalities/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Formatting

* Fixes

* cargo fmt

* Fixes

* Update primitives/io/src/lib.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Formatting

* Fixes

Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
This commit is contained in:
Gavin Wood
2022-05-29 12:56:26 +01:00
committed by GitHub
parent 189a310e4c
commit ecbd65fb95
45 changed files with 968 additions and 206 deletions
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substrate/frame/system/src/lib.rs
+2 -2
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@@ -475,7 +475,7 @@ pub mod pallet {
_subkeys: u32,
) -> DispatchResultWithPostInfo {
ensure_root(origin)?;
storage::unhashed::kill_prefix(&prefix, None);
let _ = storage::unhashed::clear_prefix(&prefix, None, None);
Ok(().into())
}
@@ -1427,7 +1427,7 @@ impl<T: Config> Pallet<T> {
pub fn reset_events() {
<Events<T>>::kill();
EventCount::<T>::kill();
<EventTopics<T>>::remove_all(None);
let _ = <EventTopics<T>>::clear(u32::max_value(), None);
}
/// Assert the given `event` exists.