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Changes tries: support forks (#950)

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* forks support in changes trie storage

* moved convert_hash to primitives

* optimize ChangesTrieRootsStorage::root when anchor is canonicalized
This commit is contained in:
Svyatoslav Nikolsky
2018-11-13 14:17:14 +03:00
committed by Gav Wood
parent 037f9dde10
commit 6e3c56c135
25 changed files with 276 additions and 138 deletions
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substrate/core/client/src/cht.rs
+2 -3
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@@ -27,7 +27,7 @@ use hash_db;
use heapsize::HeapSizeOf;
use trie;
use primitives::H256;
use primitives::{H256, convert_hash};
use runtime_primitives::traits::{As, Header as HeaderT, SimpleArithmetic, One};
use state_machine::backend::InMemory as InMemoryState;
use state_machine::{prove_read, read_proof_check};
@@ -113,8 +113,7 @@ pub fn check_proof<Header, Hasher>(
Hasher: hash_db::Hasher,
Hasher::Out: Ord + HeapSizeOf,
{
let mut root: Hasher::Out = Default::default();
root.as_mut().copy_from_slice(local_root.as_ref());
let root: Hasher::Out = convert_hash(&local_root);
let local_cht_key = encode_cht_key(local_number);
let local_cht_value = read_proof_check::<Hasher>(root, remote_proof,
&local_cht_key).map_err(|e| ClientError::from(e))?;