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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/executor/src/wasm_executor.rs
+10 -3
View File
@@ -29,7 +29,7 @@ use wasm_utils::UserError;
use primitives::{blake2_256, twox_128, twox_256, ed25519};
use primitives::hexdisplay::HexDisplay;
use primitives::sandbox as sandbox_primitives;
use primitives::Blake2Hasher;
use primitives::{H256, Blake2Hasher};
use trie::ordered_trie_root;
use sandbox;
@@ -412,8 +412,15 @@ impl_function_executor!(this: FunctionExecutor<'e, E>,
Ok(0)
}
},
ext_storage_changes_root(block: u64, result: *mut u8) -> u32 => {
let r = this.ext.storage_changes_root(block);
ext_storage_changes_root(parent_hash_data: *const u8, parent_hash_len: u32, parent_number: u64, result: *mut u8) -> u32 => {
let mut parent_hash = H256::default();
if parent_hash_len != parent_hash.as_ref().len() as u32 {
return Err(UserError("Invalid parent_hash_len in ext_storage_changes_root").into());
}
let raw_parent_hash = this.memory.get(parent_hash_data, parent_hash_len as usize)
.map_err(|_| UserError("Invalid attempt to get parent_hash in ext_storage_changes_root"))?;
parent_hash.as_mut().copy_from_slice(&raw_parent_hash[..]);
let r = this.ext.storage_changes_root(parent_hash, parent_number);
if let Some(ref r) = r {
this.memory.set(result, &r[..]).map_err(|_| UserError("Invalid attempt to set memory in ext_storage_changes_root"))?;
}