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state_getSize RPC for storage maps (#6847)

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* Fancy compact encode/decode impl for compact solution

* Make it optional

* Remove extra file

* Update primitives/npos-elections/compact/src/lib.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Final fixes.

* getSize rpc should work for maps as well

* Fix future types

* Remove minimum_validator_count stale const

* Update client/rpc/src/state/mod.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* "Optimize" `storage_size`

* Remove unused import

* Update doc

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
This commit is contained in:
Kian Paimani
2020-08-11 14:09:52 +02:00
committed by GitHub
parent 1519da95d7
commit b0342f0b12
4 changed files with 49 additions and 5 deletions
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substrate/client/rpc/src/state/mod.rs
+4 -4
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@@ -97,14 +97,14 @@ pub trait StateBackend<Block: BlockT, Client>: Send + Sync + 'static
) -> FutureResult<Option<Block::Hash>>;
/// Returns the size of a storage entry at a block's state.
///
/// If data is available at `key`, it is returned. Else, the sum of values who's key has `key`
/// prefix is returned, i.e. all the storage (double) maps that have this prefix.
fn storage_size(
&self,
block: Option<Block::Hash>,
key: StorageKey,
) -> FutureResult<Option<u64>> {
Box::new(self.storage(block, key)
.map(|x| x.map(|x| x.0.len() as u64)))
}
) -> FutureResult<Option<u64>>;
/// Returns the runtime metadata as an opaque blob.
fn metadata(&self, block: Option<Block::Hash>) -> FutureResult<Bytes>;