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Add standalone set head operations (#1600)

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* Refactor head setting operation to a separate function

* Fix commit issue and implement set_head standalone in db

* Add standalone set head operations

* Address grumbles

* Change number_and_hash_to_lookup key in light mod to take reference

* Fix bug in set head commit

* Add a convenience fn

* Fix a deadlock

* Fix missing argument
This commit is contained in:
Wei Tang
2019-02-12 17:21:25 +01:00
committed by Gav Wood
parent 6122f7d6b6
commit 22048dba60
7 changed files with 321 additions and 175 deletions
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substrate/core/client/src/light/blockchain.rs
+7
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@@ -45,6 +45,9 @@ pub trait Storage<Block: BlockT>: AuxStore + BlockchainHeaderBackend<Block> {
aux_ops: Vec<(Vec<u8>, Option<Vec<u8>>)>,
) -> ClientResult<()>;
/// Set an existing block as new best block.
fn set_head(&self, block: BlockId<Block>) -> ClientResult<()>;
/// Mark historic header as finalized.
fn finalize_header(&self, block: BlockId<Block>) -> ClientResult<()>;
@@ -246,6 +249,10 @@ pub mod tests {
Ok(())
}
fn set_head(&self, _block: BlockId<Block>) -> ClientResult<()> {
Err(ClientErrorKind::Backend("Test error".into()).into())
}
fn finalize_header(&self, _block: BlockId<Block>) -> ClientResult<()> {
Err(ClientErrorKind::Backend("Test error".into()).into())
}