Struct storage_interface::mock::MockDbReader

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pub struct MockDbReader;
Expand description

This is a mock of the dbreader in tests.

Trait Implementations§

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impl DbReader for MockDbReader

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fn get_events( &self, _event_key: &EventKey, _start: u64, _order: Order, _limit: u64 ) -> Result<Vec<(u64, ContractEvent)>>

Returns events by given event key

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fn get_events_with_proofs( &self, _event_key: &EventKey, _start: u64, _order: Order, _limit: u64, _known_version: Option<u64> ) -> Result<Vec<EventWithProof>>

Returns events by given event key

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fn get_latest_ledger_info(&self) -> Result<LedgerInfoWithSignatures>

Returns the latest ledger info.

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fn get_epoch_ending_ledger_infos( &self, _start_epoch: u64, _end_epoch: u64 ) -> Result<EpochChangeProof>

See DiemDB::get_epoch_ending_ledger_infos.
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fn get_transactions( &self, _start_version: Version, _batch_size: u64, _ledger_version: Version, _fetch_events: bool ) -> Result<TransactionListWithProof>

See DiemDB::get_transactions.
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fn get_event_by_version_with_proof( &self, _event_key: &EventKey, _version: u64, _proof_version: u64 ) -> Result<EventByVersionWithProof>

Returns the [NewBlockEvent] for the block containing the requested version and proof that the block actually contains the version.
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fn get_block_timestamp(&self, _version: u64) -> Result<u64>

See DiemDB::get_block_timestamp.
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fn get_latest_account_state( &self, _address: AccountAddress ) -> Result<Option<AccountStateBlob>>

See DiemDB::get_latest_account_state.
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fn get_startup_info(&self) -> Result<Option<StartupInfo>>

Gets information needed from storage during the main node startup. See DiemDB::get_startup_info.
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fn get_account_transaction( &self, _address: AccountAddress, _seq_num: u64, _include_events: bool, _ledger_version: Version ) -> Result<Option<TransactionWithProof>>

Returns a transaction that is the seq_num-th one associated with the given account. If the transaction with given seq_num doesn’t exist, returns None.
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fn get_account_transactions( &self, _address: AccountAddress, _start_seq_num: u64, _limit: u64, _include_events: bool, _ledger_version: Version ) -> Result<AccountTransactionsWithProof>

Returns the list of transactions sent by an account with address starting at sequence number seq_num. Will return no more than limit transactions. Will ignore transactions with txn.version > ledger_version. Optionally fetch events for each transaction when fetch_events is true.
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fn get_state_proof_with_ledger_info( &self, _known_version: u64, _ledger_info: LedgerInfoWithSignatures ) -> Result<StateProof>

Returns proof of new state for a given ledger info with signatures relative to version known to client
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fn get_state_proof(&self, _known_version: u64) -> Result<StateProof>

Returns proof of new state relative to version known to client
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fn get_account_state_with_proof( &self, _address: AccountAddress, _version: Version, _ledger_version: Version ) -> Result<AccountStateWithProof>

Returns the account state corresponding to the given version and account address with proof based on ledger_version
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fn get_account_state_with_proof_by_version( &self, _address: AccountAddress, _version: Version ) -> Result<(Option<AccountStateBlob>, SparseMerkleProof<AccountStateBlob>)>

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fn get_latest_state_root(&self) -> Result<(Version, HashValue)>

See DiemDB::get_latest_state_root.
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fn get_latest_tree_state(&self) -> Result<TreeState>

Gets the latest TreeState no matter if db has been bootstrapped. Used by the Db-bootstrapper.
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fn get_epoch_ending_ledger_info( &self, _known_version: u64 ) -> Result<LedgerInfoWithSignatures>

Get the ledger info of the epoch that known_version belongs to.
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fn get_last_version_before_timestamp( &self, _timestamp: u64, _ledger_version: Version ) -> Result<Version>

Gets the version of the last transaction committed before timestamp, a commited block at or after the required timestamp must exist (otherwise it’s possible the next block committed as a timestamp smaller than the one in the request).
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fn get_latest_version(&self) -> Result<Version>

Returns the latest ledger info.
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fn get_latest_commit_metadata(&self) -> Result<(Version, u64)>

Returns the latest version and committed block timestamp
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fn get_latest_transaction_info_option( &self ) -> Result<Option<(Version, TransactionInfo)>>

Gets the latest transaction info. N.B. Unlike get_startup_info(), even if the db is not bootstrapped, this can return Some – those from a db-restore run.
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fn get_accumulator_root_hash(&self, _version: Version) -> Result<HashValue>

Gets the transaction accumulator root hash at specified version. Caller must guarantee the version is not greater than the latest version.
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fn get_accumulator_consistency_proof( &self, _client_known_version: Option<Version>, _ledger_version: Version ) -> Result<AccumulatorConsistencyProof>

Gets an [AccumulatorConsistencyProof] starting from client_known_version (or pre-genesis if None) until ledger_version. Read more
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fn get_accumulator_summary( &self, ledger_version: Version ) -> Result<TransactionAccumulatorSummary>

A convenience function for building a [TransactionAccumulatorSummary] at the given ledger_version. Read more

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