Crate namada_storage

Expand description

This crate provides

Modules§

collections: Lazy data structures for storage access where elements are not all loaded into memory.
conversion_state: Shielded tokens conversion state
mockdb: DB mock for testing
tx_queue: Transaction queue
types: The key and values that may be persisted in a DB.

BlockHash: Hash of a block as fixed-size byte array
BlockHeader: The block header data from Tendermint header relevant for Namada storage
BlockHeight: Height of a block, i.e. the level. The default is the BlockHeight::sentinel value, which doesn’t correspond to any block.
BlockResults: Represents the indices of the accepted transactions in a block.
BlockStateRead: The block’s state as stored in the database.
BlockStateWrite: The block’s state to write into the database.
CustomError: A custom error
Epoch: Epoch identifier. Epochs are identified by consecutive numbers.
Epochs: Predecessor block epochs
EthEventsQueue: Container of all Ethereum event queues.
EthEventsQueueIter: Draining iterator over a queue of Ethereum events,
Hash: A hash, typically a sha-2 hash of a tx
InnerEthEventsQueue: A queue of confirmed Ethereum events of type E.
Key: A storage key is made of storage key segments DbKeySeg, separated by KEY_SEGMENT_SEPARATOR.
KeyRef: A Key made of borrowed key segments DbKeySeg.
PrefixValue: A value of a storage prefix iterator.
StringKey: Storage keys that are utf8 encoded strings
TreeBytes: A wrapper around raw bytes to be stored as values in a merkle tree
TxIndex: Transaction index within block.

BLOCK_CF: Block column family name
DIFFS_CF: Diffs column family name
EPOCH_TYPE_LENGTH: The length of the epoch type
IBC_KEY_LIMIT: The maximum size of an IBC key (in bytes) allowed in merkle-ized storage
KEY_SEGMENT_SEPARATOR: The separator of storage key segments
REPLAY_PROTECTION_CF: Replay protection column family name
RESERVED_ADDRESS_PREFIX: The reserved storage key prefix for addresses
RESERVED_VP_KEY: The reserved storage key for validity predicates
ROLLBACK_CF: Diffs for rollback (only kept for 1 block) column family name
STATE_CF: State column family name
SUBSPACE_CF: Subspace column family name
TX_INDEX_LENGTH: The length of the transaction index
VP_KEY_PREFIX: The reserved storage key prefix for validity predicates
WASM_CODE_LEN_PREFIX: The reserved storage key prefix for wasm codes’ length
WASM_CODE_NAME_PREFIX: The reserved storage key prefix for wasm codes’ name
WASM_CODE_PREFIX: The reserved storage key prefix for wasm codes
WASM_HASH_PREFIX: The reserved storage key prefix for wasm code hashes
WASM_KEY_PREFIX: The reserved storage key prefix for wasm codes

DB: A database backend.
DBIter: A database prefix iterator.
DBUpdateVisitor: A CRUD DB access
DBWriteBatch: Atomic batch write.
KeySeg: Represents a segment in a path that may be used as a database key
OptionExt: An extension to Option to allow turning None case to an Error from a static string (handy for WASM).
ResultExt: Result extension to easily wrap custom errors into Error.
StorageHasher: The storage hasher used for the merkle tree.
StorageRead: Common storage read interface
StorageWrite: Common storage write interface

iter_prefix: Iterate Borsh encoded items matching the given prefix, ordered by the storage keys.
iter_prefix_bytes: Iterate items matching the given prefix, ordered by the storage keys.
iter_prefix_with_filter: Iterate Borsh encoded items matching the given prefix and passing the given filter predicate, ordered by the storage keys.
iter_prefix_with_filter_map: Iterate Borsh encoded items matching the given prefix and passing the given filter predicate, ordered by the storage keys.