Trait HistoryWriter 

pub trait HistoryWriter: Send {
    // Required methods
    fn unwind_account_history_indices<'a>(
        &self,
        changesets: impl Iterator<Item = &'a (BlockNumber, AccountBeforeTx)>,
    ) -> ProviderResult<usize>;
    fn unwind_account_history_indices_range(
        &self,
        range: impl RangeBounds<BlockNumber>,
    ) -> ProviderResult<usize>;
    fn insert_account_history_index(
        &self,
        index_updates: impl IntoIterator<Item = (Address, impl IntoIterator<Item = u64>)>,
    ) -> ProviderResult<()>;
    fn unwind_storage_history_indices(
        &self,
        changesets: impl Iterator<Item = (BlockNumberAddress, StorageEntry)>,
    ) -> ProviderResult<usize>;
    fn unwind_storage_history_indices_range(
        &self,
        range: impl RangeBounds<BlockNumber>,
    ) -> ProviderResult<usize>;
    fn insert_storage_history_index(
        &self,
        storage_transitions: impl IntoIterator<Item = ((Address, B256), impl IntoIterator<Item = u64>)>,
    ) -> ProviderResult<()>;
    fn update_history_indices(
        &self,
        range: RangeInclusive<BlockNumber>,
    ) -> ProviderResult<()>;
}

Available on crate feature db-api only.

History Writer

Required Methods

fn unwind_account_history_indices<'a>( &self, changesets: impl Iterator<Item = &'a (BlockNumber, AccountBeforeTx)>, ) -> ProviderResult<usize>

Unwind and clear account history indices.

Returns number of changesets walked.

fn unwind_account_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

Unwind and clear account history indices in a given block range.

Returns number of changesets walked.

fn insert_account_history_index( &self, index_updates: impl IntoIterator<Item = (Address, impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

Insert account change index to database. Used inside AccountHistoryIndex stage

fn unwind_storage_history_indices( &self, changesets: impl Iterator<Item = (BlockNumberAddress, StorageEntry)>, ) -> ProviderResult<usize>

Unwind and clear storage history indices.

Returns number of changesets walked.

fn unwind_storage_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

Unwind and clear storage history indices in a given block range.

Returns number of changesets walked.

fn insert_storage_history_index( &self, storage_transitions: impl IntoIterator<Item = ((Address, B256), impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

Insert storage change index to database. Used inside StorageHistoryIndex stage

fn update_history_indices( &self, range: RangeInclusive<BlockNumber>, ) -> ProviderResult<()>

Read account/storage changesets and update account/storage history indices.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<'b, T: 'b + HistoryWriter + ?Sized> HistoryWriter for &'b T

where &'b T: Send,

fn unwind_account_history_indices<'a>( &self, changesets: impl Iterator<Item = &'a (BlockNumber, AccountBeforeTx)>, ) -> ProviderResult<usize>

fn unwind_account_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_account_history_index( &self, index_updates: impl IntoIterator<Item = (Address, impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn unwind_storage_history_indices( &self, changesets: impl Iterator<Item = (BlockNumberAddress, StorageEntry)>, ) -> ProviderResult<usize>

fn unwind_storage_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_storage_history_index( &self, storage_transitions: impl IntoIterator<Item = ((Address, B256), impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn update_history_indices( &self, range: RangeInclusive<BlockNumber>, ) -> ProviderResult<()>

impl<T: HistoryWriter + ?Sized> HistoryWriter for Arc<T>

where Arc<T>: Send,

fn unwind_account_history_indices<'a>( &self, changesets: impl Iterator<Item = &'a (BlockNumber, AccountBeforeTx)>, ) -> ProviderResult<usize>

fn unwind_account_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_account_history_index( &self, index_updates: impl IntoIterator<Item = (Address, impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn unwind_storage_history_indices( &self, changesets: impl Iterator<Item = (BlockNumberAddress, StorageEntry)>, ) -> ProviderResult<usize>

fn unwind_storage_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_storage_history_index( &self, storage_transitions: impl IntoIterator<Item = ((Address, B256), impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn update_history_indices( &self, range: RangeInclusive<BlockNumber>, ) -> ProviderResult<()>

impl<T: HistoryWriter + ?Sized> HistoryWriter for Box<T>

where Box<T>: Send,

fn unwind_account_history_indices<'a>( &self, changesets: impl Iterator<Item = &'a (BlockNumber, AccountBeforeTx)>, ) -> ProviderResult<usize>

fn unwind_account_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_account_history_index( &self, index_updates: impl IntoIterator<Item = (Address, impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn unwind_storage_history_indices( &self, changesets: impl Iterator<Item = (BlockNumberAddress, StorageEntry)>, ) -> ProviderResult<usize>

fn unwind_storage_history_indices_range( &self, range: impl RangeBounds<BlockNumber>, ) -> ProviderResult<usize>

fn insert_storage_history_index( &self, storage_transitions: impl IntoIterator<Item = ((Address, B256), impl IntoIterator<Item = u64>)>, ) -> ProviderResult<()>

fn update_history_indices( &self, range: RangeInclusive<BlockNumber>, ) -> ProviderResult<()>

Implementors