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Fix key collision for child trie (#4162)

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* In progress, runtime io must switch to future proof root +
child_specific (unique id) + u32 type.

* Switch interface, sr-io seems ok, rpc could use similar interface to
sr-io, genesis json broken if there is child trie in existing encoding
genesis.

* test from previous implementation.

* fix proving test.

* Restore Keyspacedb from other branch, only apply to child trie.

* Removing unneeded child_info from child root (child info are stored
if things changed, otherwhise the root does not change).

* Switch rpc to use same format as ext: more future proof.

* use root from child info for trie backend essence.

* Breaking long lines.

* Update doc and clean pr a bit.

* fix error type

* Restore removed doc on merge and update sr-io doc.

* Switch child storage api to use directly unique id, if managed id
where to be put in place, the api will change at this time.

* Clean deprecated host interface from child.

* Removing assertion on child info (can fail depending on root
memoization).

* merging child info in the overlay when possible.

* child iteration by prefix using child_info.

* Using ChainInfo in frame support. ChainInfo gets redesign to avoid
buffers allocation on every calls.

* Add length of root to the data of child info.

* comments

* Encode compact.

* Remove child info with root.

* Fix try_update condition.

* Comment Ext child root caching.

* Replace tuples by struct with field

* remove StorageTuple alias.

* Fix doc tests, and remove StorageOverlay and ChildStorageOverlay
aliases.
This commit is contained in:
cheme
2019-12-14 03:11:19 +01:00
committed by Gavin Wood
parent 7121837f84
commit 0ece5d9e17
53 changed files with 2121 additions and 918 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/test-utils/runtime/src/lib.rs
+20 -3
View File
@@ -50,6 +50,7 @@ use runtime_version::NativeVersion;
use runtime_support::{impl_outer_origin, parameter_types, weights::Weight};
use inherents::{CheckInherentsResult, InherentData};
use cfg_if::cfg_if;
use primitives::storage::ChildType;
// Ensure Babe and Aura use the same crypto to simplify things a bit.
pub use babe_primitives::AuthorityId;
@@ -910,21 +911,37 @@ fn test_read_storage() {
fn test_read_child_storage() {
const CHILD_KEY: &[u8] = b":child_storage:default:read_child_storage";
const UNIQUE_ID: &[u8] = b":unique_id";
const KEY: &[u8] = b":read_child_storage";
sp_io::storage::child_set(CHILD_KEY, KEY, b"test");
sp_io::storage::child_set(
CHILD_KEY,
UNIQUE_ID,
ChildType::CryptoUniqueId as u32,
KEY,
b"test",
);
let mut v = [0u8; 4];
let r = sp_io::storage::child_read(
CHILD_KEY,
UNIQUE_ID,
ChildType::CryptoUniqueId as u32,
KEY,
&mut v,
0
0,
);
assert_eq!(r, Some(4));
assert_eq!(&v, b"test");
let mut v = [0u8; 4];
let r = sp_io::storage::child_read(CHILD_KEY, KEY, &mut v, 8);
let r = sp_io::storage::child_read(
CHILD_KEY,
UNIQUE_ID,
ChildType::CryptoUniqueId as u32,
KEY,
&mut v,
8,
);
assert_eq!(r, Some(4));
assert_eq!(&v, &[0, 0, 0, 0]);
}