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Custom RPC for Merkle Mountain Range pallet (#8137)

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* Add MMR custom RPC.

* Change RuntimeApi to avoid hardcoding leaf type.

* Properly implement the new RuntimeAPI and wire up RPC.

* Extract Offchain DB as separate execution extension.

* Enable offchain DB access for offchain calls.

* Fix offchain_election tests.

* Skip block initialisation for proof generation.

* Fix integration test setup.

* Fix offchain tests. Not sure how I missed them earlier 🤷.

* Fix long line.

* One more test missing.

* Update mock for multi-phase.

* Address review grumbbles.

* Address review grumbles.

* Fix line width of a comment
This commit is contained in:
Tomasz Drwięga
2021-03-10 16:28:56 +01:00
committed by GitHub
parent 9637faae0c
commit f3d4355a20
37 changed files with 837 additions and 350 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/merkle-mountain-range/src/mmr/storage.rs
+5 -7
View File
@@ -62,10 +62,9 @@ impl<T, I, L> mmr_lib::MMRStore<NodeOf<T, I, L>> for Storage<OffchainStorage, T,
fn get_elem(&self, pos: u64) -> mmr_lib::Result<Option<NodeOf<T, I, L>>> {
let key = Module::<T, I>::offchain_key(pos);
// Retrieve the element from Off-chain DB.
Ok(
sp_io::offchain ::local_storage_get(sp_core::offchain::StorageKind::PERSISTENT, &key)
.and_then(|v| codec::Decode::decode(&mut &*v).ok())
)
Ok(sp_io::offchain
::local_storage_get(sp_core::offchain::StorageKind::PERSISTENT, &key)
.and_then(|v| codec::Decode::decode(&mut &*v).ok()))
}
fn append(&mut self, _: u64, _: Vec<NodeOf<T, I, L>>) -> mmr_lib::Result<()> {
@@ -95,9 +94,8 @@ impl<T, I, L> mmr_lib::MMRStore<NodeOf<T, I, L>> for Storage<RuntimeStorage, T,
// on-chain we only store the hash (even if it's a leaf)
<Nodes<T, I>>::insert(size, elem.hash());
// Indexing API is used to store the full leaf content.
elem.using_encoded(|elem| {
sp_io::offchain_index::set(&Module::<T, I>::offchain_key(size), elem)
});
let key = Module::<T, I>::offchain_key(size);
elem.using_encoded(|elem| sp_io::offchain_index::set(&key, elem));
size += 1;
if let Node::Data(..) = elem {
substrate/frame/merkle-mountain-range/src/tests.rs
+3 -2
View File
@@ -23,7 +23,7 @@ use sp_core::{
H256,
offchain::{
testing::TestOffchainExt,
OffchainExt,
OffchainWorkerExt, OffchainDbExt,
},
};
use pallet_mmr_primitives::{Proof, Compact};
@@ -34,7 +34,8 @@ pub(crate) fn new_test_ext() -> sp_io::TestExternalities {
fn register_offchain_ext(ext: &mut sp_io::TestExternalities) {
let (offchain, _offchain_state) = TestOffchainExt::with_offchain_db(ext.offchain_db());
ext.register_extension(OffchainExt::new(offchain));
ext.register_extension(OffchainDbExt::new(offchain.clone()));
ext.register_extension(OffchainWorkerExt::new(offchain));
}
fn new_block() -> u64 {