pub struct SaveBlocksInput<N = EthPrimitives>where
N: NodePrimitives,{ /* private fields */ }provider only.Expand description
Input for advancing the engine’s two persistence frontiers.
The Finish checkpoint’s block number (db_tip) tracks complete block, execution, and history
data. Finish.partial_state_trie tracks the hashed-state/trie frontier, which may lag behind it
while a suffix of blocks is retained in memory as a mask. The hashed-state/trie tables are not
a complete snapshot at db_tip while this suffix exists; the database and in-memory mask
together represent the canonical state.
blocks contains every canonical block in (prev_partial_state_trie, new_db_tip], ordered from
oldest to newest. The four frontiers derive the ranges written during this operation:
(prev_db_tip, new_db_tip]: persist block, execution, and history data, if the database frontier advances;(prev_partial_state_trie, new_partial_state_trie]: consider hashed-state/trie updates for persistence; and(new_partial_state_trie, new_db_tip]: retain as the masking suffix and do not persist its hashed-state/trie updates.
Updates in the second range that are overwritten by the masking suffix are also omitted. This
is the work partial persistence avoids: only the newest value needs to be applied later when
the masking block leaves memory. If both new frontiers are equal, the masking suffix is empty
and hashed state/trie are fully flushed through new_db_tip.
Genesis must already be initialized because this input only advances an existing database tip.
Implementations§
Source§impl<N> SaveBlocksInput<N>where
N: NodePrimitives,
impl<N> SaveBlocksInput<N>where
N: NodePrimitives,
Sourcepub fn new(
blocks: Vec<ExecutedBlock<N>>,
prev_db_tip: u64,
prev_partial_state_trie: u64,
new_db_tip: u64,
new_partial_state_trie: u64,
) -> SaveBlocksInput<N>
pub fn new( blocks: Vec<ExecutedBlock<N>>, prev_db_tip: u64, prev_partial_state_trie: u64, new_db_tip: u64, new_partial_state_trie: u64, ) -> SaveBlocksInput<N>
Creates an input that advances the existing frontiers to new_db_tip and
new_partial_state_trie.
Either frontier may advance independently. new_partial_state_trie may remain behind
prev_db_tip while a masking window grows, and new_db_tip may remain unchanged while the
state/trie frontier catches up.
§Panics
Panics if either frontier moves backwards, neither frontier advances, the state/trie
frontier exceeds the database frontier, or blocks is not the exact contiguous range
(prev_partial_state_trie, new_db_tip].
Sourcepub const fn prev_db_tip(&self) -> u64
pub const fn prev_db_tip(&self) -> u64
Returns the previous Finish checkpoint block number.
Sourcepub const fn prev_partial_state_trie(&self) -> u64
pub const fn prev_partial_state_trie(&self) -> u64
Returns the previous Finish.partial_state_trie frontier.
Sourcepub const fn new_db_tip(&self) -> u64
pub const fn new_db_tip(&self) -> u64
Returns the new Finish checkpoint block number.
Sourcepub const fn new_partial_state_trie(&self) -> u64
pub const fn new_partial_state_trie(&self) -> u64
Returns the new Finish.partial_state_trie frontier.
Sourcepub fn last_block(&self) -> NumHash
pub fn last_block(&self) -> NumHash
Returns the block at the new Finish checkpoint.
Sourcepub fn first_persist_rest_block(&self) -> Option<&ExecutedBlock<N>>
pub fn first_persist_rest_block(&self) -> Option<&ExecutedBlock<N>>
Returns the first block whose block, execution, and history data will be persisted.
Sourcepub fn persist_rest_blocks(&self) -> &[ExecutedBlock<N>]
pub fn persist_rest_blocks(&self) -> &[ExecutedBlock<N>]
Returns newly persisted blocks whose block, execution, and history data should be written.
Sourcepub fn state_trie_blocks(&self) -> &[ExecutedBlock<N>]
pub fn state_trie_blocks(&self) -> &[ExecutedBlock<N>]
Returns all blocks whose hashed-state/trie updates are candidates for persistence.
Updates overwritten by Self::state_trie_masking_blocks are filtered out by the writer.
Sourcepub fn state_trie_masking_blocks(&self) -> &[ExecutedBlock<N>]
pub fn state_trie_masking_blocks(&self) -> &[ExecutedBlock<N>]
Returns the fixed suffix whose hashed-state/trie updates remain in memory.
This suffix suppresses older updates to the same hashed keys and trie nodes. It is also the overlay required to use the database at the new Finish checkpoint.
Trait Implementations§
Auto Trait Implementations§
impl<N = EthPrimitives> !RefUnwindSafe for SaveBlocksInput<N>
impl<N = EthPrimitives> !UnwindSafe for SaveBlocksInput<N>
impl<N> Freeze for SaveBlocksInput<N>
impl<N> Send for SaveBlocksInput<N>
impl<N> Sync for SaveBlocksInput<N>
impl<N> Unpin for SaveBlocksInput<N>
impl<N> UnsafeUnpin for SaveBlocksInput<N>
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.tap() only in debug builds, and is erased in release builds.§fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
.tap_mut() only in debug builds, and is erased in release
builds.§fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
.tap_borrow() only in debug builds, and is erased in release
builds.§fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
.tap_borrow_mut() only in debug builds, and is erased in release
builds.§fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
.tap_ref() only in debug builds, and is erased in release
builds.§fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
.tap_ref_mut() only in debug builds, and is erased in release
builds.§fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
.tap_deref() only in debug builds, and is erased in release
builds.§impl<T> TryConv for T
impl<T> TryConv for T
§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere
S: Into<Dispatch>,
§fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ
fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ
Source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
Source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere
S: Into<Dispatch>,
Source§fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ
fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 56 bytes