Struct ckb_chain_spec::versionbits::Versionbits

pub struct Versionbits<'a> { /* private fields */ }

Struct Implements versionbits threshold logic, and caches results.

Implementations

impl<'a> Versionbits<'a>

pub fn new(id: DeploymentPos, consensus: &'a Consensus) -> Self

construct new Versionbits wrapper

pub fn mask(&self) -> u32

return bit mask corresponding deployment

Trait Implementations

impl<'a> VersionbitsConditionChecker for Versionbits<'a>

fn start(&self) -> EpochNumber

Specifies the first epoch in which the bit gains meaning.

fn timeout(&self) -> EpochNumber

Specifies an epoch at which the miner signaling ends. Once this epoch has been reached, if the softfork has not yet locked_in (excluding this epoch block’s bit state), the deployment is considered failed on all descendants of the block.

fn period(&self) -> EpochNumber

The period for signal statistics are counted

fn condition<I: VersionbitsIndexer>( &self, header: &HeaderView, indexer: &I ) -> bool

Determines whether bit in the version field of the block is to be used to signal

fn min_activation_epoch(&self) -> EpochNumber

Specifies the epoch at which the softfork is allowed to become active.

fn active_mode(&self) -> ActiveMode

Active mode for testing.

fn threshold(&self) -> Ratio

Specifies the minimum ratio of block per epoch, which indicate the locked_in of the softfork during the epoch.

fn get_state<I: VersionbitsIndexer>( &self, header: &HeaderView, cache: &Mutex<HashMap<Byte32, ThresholdState>>, indexer: &I ) -> Option<ThresholdState>

Returns the state for a header. Applies any state transition if conditions are present. Caches state from first block of period.

fn get_state_since_epoch<I: VersionbitsIndexer>( &self, header: &HeaderView, cache: &Mutex<HashMap<Byte32, ThresholdState>>, indexer: &I ) -> Option<EpochNumber>

Returns the first epoch which the state applies