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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/sr-io/without_std.rs
+3 -3
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@@ -72,7 +72,7 @@ extern "C" {
fn ext_get_child_storage_into(storage_key_data: *const u8, storage_key_len: u32, key_data: *const u8, key_len: u32, value_data: *mut u8, value_len: u32, value_offset: u32) -> u32;
fn ext_storage_root(result: *mut u8);
fn ext_child_storage_root(storage_key_data: *const u8, storage_key_len: u32, written_out: *mut u32) -> *mut u8;
fn ext_storage_changes_root(block: u64, result: *mut u8) -> u32;
fn ext_storage_changes_root(parent_hash_data: *const u8, parent_hash_len: u32, parent_num: u64, result: *mut u8) -> u32;
fn ext_blake2_256_enumerated_trie_root(values_data: *const u8, lens_data: *const u32, lens_len: u32, result: *mut u8);
fn ext_chain_id() -> u64;
fn ext_blake2_256(data: *const u8, len: u32, out: *mut u8);
@@ -269,10 +269,10 @@ pub fn child_storage_root(storage_key: &[u8]) -> Option<Vec<u8>> {
}
/// The current storage' changes root.
pub fn storage_changes_root(block: u64) -> Option<[u8; 32]> {
pub fn storage_changes_root(parent_hash: [u8; 32], parent_num: u64) -> Option<[u8; 32]> {
let mut result: [u8; 32] = Default::default();
let is_set = unsafe {
ext_storage_changes_root(block, result.as_mut_ptr())
ext_storage_changes_root(parent_hash.as_ptr(), parent_hash.len() as u32, parent_num, result.as_mut_ptr())
};
if is_set != 0 {