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MaxValues for maps in parachain maps (#1868)

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* MaxValues for maps in parachain maps

* fix compilation
This commit is contained in:
Svyatoslav Nikolsky
2023-02-09 14:09:45 +03:00
committed by Bastian Köcher
parent bae329c66e
commit 4982d1c2e5
5 changed files with 153 additions and 84 deletions
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bridges/modules/parachains/src/lib.rs
+58 -12
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@@ -221,27 +221,39 @@ pub mod pallet {
/// - the head of the `ImportedParaHashes` ring buffer
#[pallet::storage]
pub type ParasInfo<T: Config<I>, I: 'static = ()> = StorageMap<
_,
<ParasInfoKeyProvider as StorageMapKeyProvider>::Hasher,
<ParasInfoKeyProvider as StorageMapKeyProvider>::Key,
<ParasInfoKeyProvider as StorageMapKeyProvider>::Value,
Hasher = <ParasInfoKeyProvider as StorageMapKeyProvider>::Hasher,
Key = <ParasInfoKeyProvider as StorageMapKeyProvider>::Key,
Value = <ParasInfoKeyProvider as StorageMapKeyProvider>::Value,
QueryKind = OptionQuery,
OnEmpty = GetDefault,
MaxValues = MaybeMaxParachains<T, I>,
>;
/// State roots of parachain heads which have been imported into the pallet.
#[pallet::storage]
pub type ImportedParaHeads<T: Config<I>, I: 'static = ()> = StorageDoubleMap<
_,
<ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Hasher1,
<ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Key1,
<ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Hasher2,
<ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Key2,
StoredParaHeadDataOf<T, I>,
Hasher1 = <ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Hasher1,
Key1 = <ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Key1,
Hasher2 = <ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Hasher2,
Key2 = <ImportedParaHeadsKeyProvider as StorageDoubleMapKeyProvider>::Key2,
Value = StoredParaHeadDataOf<T, I>,
QueryKind = OptionQuery,
OnEmpty = GetDefault,
MaxValues = MaybeMaxTotalParachainHashes<T, I>,
>;
/// A ring buffer of imported parachain head hashes. Ordered by the insertion time.
#[pallet::storage]
pub(super) type ImportedParaHashes<T: Config<I>, I: 'static = ()> =
StorageDoubleMap<_, Blake2_128Concat, ParaId, Twox64Concat, u32, ParaHash>;
pub(super) type ImportedParaHashes<T: Config<I>, I: 'static = ()> = StorageDoubleMap<
Hasher1 = Blake2_128Concat,
Key1 = ParaId,
Hasher2 = Twox64Concat,
Key2 = u32,
Value = ParaHash,
QueryKind = OptionQuery,
OnEmpty = GetDefault,
MaxValues = MaybeMaxTotalParachainHashes<T, I>,
>;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
@@ -646,6 +658,27 @@ pub mod pallet {
}
}
}
/// Returns maximal number of parachains, supported by the pallet.
pub struct MaybeMaxParachains<T, I>(PhantomData<(T, I)>);
impl<T: Config<I>, I: 'static> Get<Option<u32>> for MaybeMaxParachains<T, I> {
fn get() -> Option<u32> {
Some(T::ParaStoredHeaderDataBuilder::supported_parachains())
}
}
/// Returns total number of all parachains hashes/heads, stored by the pallet.
pub struct MaybeMaxTotalParachainHashes<T, I>(PhantomData<(T, I)>);
impl<T: Config<I>, I: 'static> Get<Option<u32>> for MaybeMaxTotalParachainHashes<T, I> {
fn get() -> Option<u32> {
Some(
T::ParaStoredHeaderDataBuilder::supported_parachains()
.saturating_mul(T::HeadsToKeep::get()),
)
}
}
}
/// Single parachain header chain adapter.
@@ -1525,4 +1558,17 @@ mod tests {
}
generate_owned_bridge_module_tests!(BasicOperatingMode::Normal, BasicOperatingMode::Halted);
#[test]
fn maybe_max_parachains_returns_correct_value() {
assert_eq!(MaybeMaxParachains::<TestRuntime, ()>::get(), Some(mock::TOTAL_PARACHAINS));
}
#[test]
fn maybe_max_total_parachain_hashes_returns_correct_value() {
assert_eq!(
MaybeMaxTotalParachainHashes::<TestRuntime, ()>::get(),
Some(mock::TOTAL_PARACHAINS * mock::HeadsToKeep::get()),
);
}
}