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contracts: Add configurable per-storage item cost (#7819)

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* Rework rent parameters

* No need for empty_pair_count any longer

* Parameterize runtime
This commit is contained in:
Alexander Theißen
2021-01-06 16:47:22 +01:00
committed by GitHub
parent dd4625a1e7
commit a208da1d18
6 changed files with 103 additions and 112 deletions
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substrate/frame/contracts/src/storage.rs
+8 -22
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@@ -102,27 +102,14 @@ where
// Update the total number of KV pairs and the number of empty pairs.
match (&opt_prev_value, &opt_new_value) {
(Some(prev_value), None) => {
new_info.total_pair_count -= 1;
if prev_value.is_empty() {
new_info.empty_pair_count -= 1;
}
(Some(_), None) => {
new_info.pair_count -= 1;
},
(None, Some(new_value)) => {
new_info.total_pair_count += 1;
if new_value.is_empty() {
new_info.empty_pair_count += 1;
}
(None, Some(_)) => {
new_info.pair_count += 1;
},
(Some(prev_value), Some(new_value)) => {
if prev_value.is_empty() {
new_info.empty_pair_count -= 1;
}
if new_value.is_empty() {
new_info.empty_pair_count += 1;
}
}
(None, None) => {}
(Some(_), Some(_)) => {},
(None, None) => {},
}
// Update the total storage size.
@@ -197,8 +184,7 @@ where
trie_id,
deduct_block: <frame_system::Module<T>>::block_number(),
rent_allowance: <BalanceOf<T>>::max_value(),
empty_pair_count: 0,
total_pair_count: 0,
pair_count: 0,
last_write: None,
}
.into(),
@@ -217,7 +203,7 @@ where
Err(Error::<T>::DeletionQueueFull.into())
} else {
DeletionQueue::append(DeletedContract {
pair_count: contract.total_pair_count,
pair_count: contract.pair_count,
trie_id: contract.trie_id.clone(),
});
Ok(())