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Move snapshot related traits to their proper place (#11012)

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* Move snapshot to own crate
Sort out imports

* WIP cargo toml

* Make snapshotting generic over the client
Sort out tests

* Sort out types from blockchain and client

* Sort out sync

* Sort out imports and generics

* Sort out main binary

* Fix sync test-helpers

* Sort out import for secret-store

* Sort out more imports

* Fix easy todos

* cleanup

* Move SnapshotClient and SnapshotWriter to their proper places
Sort out the circular dependency between snapshot and ethcore by moving all snapshot tests to own crate, snapshot-tests

* cleanup

* Cleanup

* fix merge issues

* Update ethcore/snapshot/snapshot-tests/Cargo.toml

Co-Authored-By: Andronik Ordian <write@reusable.software>

* Sort out botched merge

* Ensure snapshot-tests run

* Docs

* Fix grumbles
This commit is contained in:
David
2019-09-10 22:44:33 +02:00
committed by GitHub
parent d311bebaee
commit 48629c2bd4
25 changed files with 860 additions and 676 deletions
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32
ethcore/client-traits/src/lib.rs
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@@ -58,8 +58,6 @@ use trace::{
use common_types::data_format::DataFormat;
use vm::{LastHashes, Schedule};
use common_types::snapshot::Progress;
/// State information to be used during client query
pub enum StateOrBlock {
/// State to be used, may be pending
@@ -448,36 +446,6 @@ pub trait DatabaseRestore: Send + Sync {
fn restore_db(&self, new_db: &str) -> Result<(), EthcoreError>;
}
/// Snapshot related functionality
pub trait SnapshotClient: BlockChainClient + BlockInfo + DatabaseRestore + BlockChainReset {
/// Take a snapshot at the given block.
/// If the ID given is "latest", this will default to 1000 blocks behind.
fn take_snapshot<W: SnapshotWriter + Send>(
&self,
writer: W,
at: BlockId,
p: &Progress,
) -> Result<(), EthcoreError>;
}
// todo[dvdplm] move this back to snapshot once extracted from ethcore
/// Something which can write snapshots.
/// Writing the same chunk multiple times will lead to implementation-defined
/// behavior, and is not advised.
pub trait SnapshotWriter {
/// Write a compressed state chunk.
fn write_state_chunk(&mut self, hash: H256, chunk: &[u8]) -> std::io::Result<()>;
/// Write a compressed block chunk.
fn write_block_chunk(&mut self, hash: H256, chunk: &[u8]) -> std::io::Result<()>;
/// Complete writing. The manifest's chunk lists must be consistent
/// with the chunks written.
fn finish(self, manifest: common_types::snapshot::ManifestData) -> std::io::Result<()> where Self: Sized;
}
/// Represents what has to be handled by actor listening to chain events
pub trait ChainNotify: Send + Sync {
/// fires when chain has new blocks.