Module ethcore::snapshot [−] [src]

Snapshot creation, restoration, and network service.

Documentation of the format can be found at https://github.com/paritytech/parity/wiki/Warp-Sync-Snapshot-Format

Re-exports

pub use self::service::Service;

pub use self::service::DatabaseRestore;

io	Snapshot i/o. Ways of writing and reading snapshots. This module supports writing and reading snapshots of two different formats: packed and loose. Packed snapshots are written to a single file, and loose snapshots are written to multiple files in one directory.
service	Snapshot network service implementation.

BasicAccount	Basic account type.
ManifestData	Manifest data.
PoaSnapshot	Snapshot creation and restoration for PoA chains. Chunk format:
PowRebuilder	Rebuilder for proof-of-work chains. Does basic verification for all blocks, but `PoW` verification for some. Blocks must be fed in-order.
PowSnapshot	Snapshot creation and restoration for PoW chains. This includes blocks from the head of the chain as a loose assurance that the chain is valid.
Progress	A progress indicator for snapshots.
StateRebuilder	Used to rebuild the state trie piece by piece.
Watcher	A `ChainNotify` implementation which will trigger a snapshot event at certain block numbers.

Error	Snapshot-related errors.
RestorationStatus	Statuses for restorations.

Rebuilder	Restore from secondary snapshot chunks.
SnapshotComponents	Components necessary for snapshot creation and restoration.
SnapshotService	The interface for a snapshot network service. This handles:

chunk_secondary	Create and write out all secondary chunks to disk, returning a vector of all the hashes of secondary chunks created.
chunk_state	Walk the given state database starting from the given root, creating chunks and writing them out.
take_snapshot	Take a snapshot using the given blockchain, starting block hash, and database, writing into the given writer.
verify_old_block	Verify an old block with the given header, engine, blockchain, body. If `always` is set, it will perform the fullest verification possible. If not, it will take a random sample to determine whether it will do heavy or light verification.

A sink for produced chunks.