Struct cfxcore::consensus::pivot_hint::PivotHint
source · pub struct PivotHint { /* private fields */ }
Expand description
Manages pivot block hash records for chain fork validation during sync process.
Implementations§
source§impl PivotHint
impl PivotHint
sourcepub fn new(conf: &PivotHintConfig) -> Result<Self, String>
pub fn new(conf: &PivotHintConfig) -> Result<Self, String>
Creates a new PivotHint instance by loading and validating the pivot hint file.
§Steps
- Loads and validates the header
- Loads page digests and verifies against provided checksum
- Initializes LRU cache for page data
§Arguments
conf
- Configuration containing file path and expected checksum
§Errors
- File open/read errors
- Header parsing errors
- Checksum mismatch
sourcepub fn allow_switch(
&self,
fork_at: u64,
me_height: u64,
ancestor_hash_at: impl FnOnce(u64) -> H256
) -> bool
pub fn allow_switch( &self, fork_at: u64, me_height: u64, ancestor_hash_at: impl FnOnce(u64) -> H256 ) -> bool
Validates if switching to a target branch is allowed based on pivot hint records.
§Arguments
fork_at
- First block height where the current chain and target branch divergeme_height
- Last block height of the target branchancestor_hash_at
- Callback to retrieve block hash at specified height on target branch
§Returns
Returns whether switching to the fork branch is allowed.
pub fn allow_extend(&self, height: u64, hash: H256) -> bool
pub fn is_active(&self) -> bool
Auto Trait Implementations§
impl !Freeze for PivotHint
impl !RefUnwindSafe for PivotHint
impl Send for PivotHint
impl Sync for PivotHint
impl Unpin for PivotHint
impl UnwindSafe for PivotHint
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