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Remove requirement on Hash = H256, make Proposer return StorageChanges and Proof (#3860)

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* Extend `Proposer` to optionally generate a proof of the proposal

* Something

* Refactor sr-api to not depend on client anymore

* Fix benches

* Apply suggestions from code review

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Apply suggestions from code review

* Introduce new `into_storage_changes` function

* Switch to runtime api for `execute_block` and don't require `H256`
anywhere in the code

* Put the `StorageChanges` into the `Proposal`

* Move the runtime api error to its own trait

* Adds `StorageTransactionCache` to the runtime api

This requires that we add `type NodeBlock = ` to the
`impl_runtime_apis!` macro to work around some bugs in rustc :(

* Remove `type NodeBlock` and switch to a "better" hack

* Start using the transaction cache from the runtime api

* Make it compile

* Move `InMemory` to its own file

* Make all tests work again

* Return block, storage_changes and proof from Blockbuilder::bake()

* Make sure that we use/set `storage_changes` when possible

* Add test

* Fix deadlock

* Remove accidentally added folders

* Introduce `RecordProof` as argument type to be more explicit

* Update client/src/client.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update primitives/state-machine/src/ext.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Integrates review feedback

* Remove `unsafe` usage

* Update client/block-builder/src/lib.rs

Co-Authored-By: Benjamin Kampmann <ben@gnunicorn.org>

* Update client/src/call_executor.rs

* Bump versions

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Benjamin Kampmann <ben.kampmann@googlemail.com>
This commit is contained in:
Bastian Köcher
2020-01-10 10:48:32 +01:00
committed by GitHub
parent 74d6e660c6
commit fd6b29dd2c
140 changed files with 4860 additions and 3339 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/primitives/state-machine/src/changes_trie/mod.rs
+43 -27
View File
@@ -84,37 +84,37 @@ pub const NO_EXTRINSIC_INDEX: u32 = 0xffffffff;
/// Requirements for block number that can be used with changes tries.
pub trait BlockNumber:
Send + Sync + 'static +
::std::fmt::Display +
std::fmt::Display +
Clone +
From<u32> + TryInto<u32> + One + Zero +
PartialEq + Ord +
::std::hash::Hash +
::std::ops::Add<Self, Output=Self> + ::std::ops::Sub<Self, Output=Self> +
::std::ops::Mul<Self, Output=Self> + ::std::ops::Div<Self, Output=Self> +
::std::ops::Rem<Self, Output=Self> +
::std::ops::AddAssign<Self> +
std::hash::Hash +
std::ops::Add<Self, Output=Self> + ::std::ops::Sub<Self, Output=Self> +
std::ops::Mul<Self, Output=Self> + ::std::ops::Div<Self, Output=Self> +
std::ops::Rem<Self, Output=Self> +
std::ops::AddAssign<Self> +
num_traits::CheckedMul + num_traits::CheckedSub +
Decode + Encode
{}
impl<T> BlockNumber for T where T:
Send + Sync + 'static +
::std::fmt::Display +
std::fmt::Display +
Clone +
From<u32> + TryInto<u32> + One + Zero +
PartialEq + Ord +
::std::hash::Hash +
::std::ops::Add<Self, Output=Self> + ::std::ops::Sub<Self, Output=Self> +
::std::ops::Mul<Self, Output=Self> + ::std::ops::Div<Self, Output=Self> +
::std::ops::Rem<Self, Output=Self> +
::std::ops::AddAssign<Self> +
std::hash::Hash +
std::ops::Add<Self, Output=Self> + ::std::ops::Sub<Self, Output=Self> +
std::ops::Mul<Self, Output=Self> + ::std::ops::Div<Self, Output=Self> +
std::ops::Rem<Self, Output=Self> +
std::ops::AddAssign<Self> +
num_traits::CheckedMul + num_traits::CheckedSub +
Decode + Encode,
{}
/// Block identifier that could be used to determine fork of this block.
#[derive(Debug)]
pub struct AnchorBlockId<Hash: ::std::fmt::Debug, Number: BlockNumber> {
pub struct AnchorBlockId<Hash: std::fmt::Debug, Number: BlockNumber> {
/// Hash of this block.
pub hash: Hash,
/// Number of this block.
@@ -173,12 +173,14 @@ pub struct ConfigurationRange<'a, N> {
/// Compute the changes trie root and transaction for given block.
/// Returns Err(()) if unknown `parent_hash` has been passed.
/// Returns Ok(None) if there's no data to perform computation.
/// Panics if background storage returns an error OR if insert to MemoryDB fails.
/// Panics if background storage returns an error (and `panic_on_storage_error` is `true`) OR
/// if insert to MemoryDB fails.
pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, Number: BlockNumber>(
backend: &B,
storage: Option<&'a S>,
changes: &OverlayedChanges,
parent_hash: H::Out,
panic_on_storage_error: bool,
) -> Result<Option<(MemoryDB<H>, H::Out, CacheAction<H::Out, Number>)>, ()>
where
H::Out: Ord + 'static + Encode,
@@ -188,6 +190,19 @@ pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, N
_ => return Ok(None),
};
/// Panics when `res.is_err() && panic`, otherwise it returns `Err(())` on an error.
fn maybe_panic<R, E: std::fmt::Debug>(
res: std::result::Result<R, E>,
panic: bool,
) -> std::result::Result<R, ()> {
res.map(Ok)
.unwrap_or_else(|e| if panic {
panic!("changes trie: storage access is not allowed to fail within runtime: {:?}", e)
} else {
Err(())
})
}
// FIXME: remove this in https://github.com/paritytech/substrate/pull/3201
let config = ConfigurationRange {
config,
@@ -200,13 +215,16 @@ pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, N
let block = parent.number.clone() + One::one();
// storage errors are considered fatal (similar to situations when runtime fetches values from storage)
let (input_pairs, child_input_pairs, digest_input_blocks) = prepare_input::<B, H, Number>(
backend,
storage,
config.clone(),
changes,
&parent,
).expect("changes trie: storage access is not allowed to fail within runtime");
let (input_pairs, child_input_pairs, digest_input_blocks) = maybe_panic(
prepare_input::<B, H, Number>(
backend,
storage,
config.clone(),
changes,
&parent,
),
panic_on_storage_error,
)?;
// prepare cached data
let mut cache_action = prepare_cached_build_data(config, block.clone());
@@ -230,8 +248,7 @@ pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, N
let (key, value) = input_pair.into();
not_empty = true;
trie.insert(&key, &value)
.expect("changes trie: insertion to trie is not allowed to fail within runtime");
maybe_panic(trie.insert(&key, &value), panic_on_storage_error)?;
}
cache_action = cache_action.insert(
@@ -247,8 +264,7 @@ pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, N
{
let mut trie = TrieDBMut::<H>::new(&mut mdb, &mut root);
for (key, value) in child_roots.into_iter().map(Into::into) {
trie.insert(&key, &value)
.expect("changes trie: insertion to trie is not allowed to fail within runtime");
maybe_panic(trie.insert(&key, &value), panic_on_storage_error)?;
}
let mut storage_changed_keys = HashSet::new();
@@ -260,9 +276,9 @@ pub fn build_changes_trie<'a, B: Backend<H>, S: Storage<H, Number>, H: Hasher, N
}
let (key, value) = input_pair.into();
trie.insert(&key, &value)
.expect("changes trie: insertion to trie is not allowed to fail within runtime");
maybe_panic(trie.insert(&key, &value), panic_on_storage_error)?;
}
cache_action = cache_action.insert(
None,
storage_changed_keys,