Crate vapcore_snapshot[−][src]

Snapshot creation, restoration, and network service.

Documentation of the format can be found at https://wiki.tetcoin.org/Warp-Sync-Snapshot-Format

Re-exports

pub use self::service::Service;

pub use self::service::Guard;

pub use self::service::Restoration;

pub use self::service::RestorationParams;

pub use self::io::SnapshotWriter;

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.

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.
SnapshotConfiguration	Configuration for the Snapshot service
StateRebuilder	Used to rebuild the state trie piece by piece.
Watcher	A `ChainNotify` implementation which will trigger a snapshot event at certain block numbers.

number of snapshot subparts, must be a power of 2 in [1; 256]

Broadcast	Helper trait for broadcasting a block to take a snapshot at.
Oracle	Helper trait for transforming hashes to block numbers and checking if syncing.
Rebuilder	Restore from secondary snapshot chunks.
SnapshotClient	Snapshot related functionality
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. `part` is a number between 0 and 15, which describe which part of the tree should be chunked.
chunker	Create a factory for building snapshot chunks and restoring from them. `None` indicates that the engine doesn’t support snapshot creation.
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.