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state_machine no_std witness externalities (#6934)

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* checkpoint before removing CT from change trie

* before trie backend without tx

* undo

* Started no transaction, but would need using a different root
calculation method, out of the scope of this pr, will roll back.

* Remove NoTransaction.

* partially address review.
dummy stats implementation for no_std.

* Remove ChangeTrieOverlay.

* modified function

* Remove witness_ext

* need noops changes root

* update from cumulus branch

* line break

* remove warning

* line break

* From review: renamings and stats active in no std (except time).

* include cache, exclude change trie cache with individual temporary bad looking
no_std check

* little test

* fuse imports and filter_map prepare_extrinsics_input_inner fold.

* put back ExtInner into Ext, awkward double proto for new function.

* Apply suggestions from code review

* Update primitives/state-machine/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
cheme
2020-09-11 12:11:25 +02:00
committed by GitHub
parent 45d26e7419
commit 232a30fdb4
18 changed files with 1209 additions and 794 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/primitives/state-machine/src/trie_backend.rs
+5 -4
View File
@@ -17,7 +17,7 @@
//! Trie-based state machine backend.
use log::{warn, debug};
use crate::{warn, debug};
use hash_db::Hasher;
use sp_trie::{Trie, delta_trie_root, empty_child_trie_root, child_delta_trie_root};
use sp_trie::trie_types::{TrieDB, TrieError, Layout};
@@ -27,6 +27,7 @@ use crate::{
StorageKey, StorageValue, Backend,
trie_backend_essence::{TrieBackendEssence, TrieBackendStorage, Ephemeral},
};
use sp_std::{boxed::Box, vec::Vec};
/// Patricia trie-based backend. Transaction type is an overlay of changes to commit.
pub struct TrieBackend<S: TrieBackendStorage<H>, H: Hasher> {
@@ -67,8 +68,8 @@ impl<S: TrieBackendStorage<H>, H: Hasher> TrieBackend<S, H> where H::Out: Codec
}
}
impl<S: TrieBackendStorage<H>, H: Hasher> std::fmt::Debug for TrieBackend<S, H> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
impl<S: TrieBackendStorage<H>, H: Hasher> sp_std::fmt::Debug for TrieBackend<S, H> {
fn fmt(&self, f: &mut sp_std::fmt::Formatter<'_>) -> sp_std::fmt::Result {
write!(f, "TrieBackend")
}
}
@@ -76,7 +77,7 @@ impl<S: TrieBackendStorage<H>, H: Hasher> std::fmt::Debug for TrieBackend<S, H>
impl<S: TrieBackendStorage<H>, H: Hasher> Backend<H> for TrieBackend<S, H> where
H::Out: Ord + Codec,
{
type Error = String;
type Error = crate::DefaultError;
type Transaction = S::Overlay;
type TrieBackendStorage = S;