Struct solana_sdk::sysvar::epoch_schedule::EpochSchedule

pub struct EpochSchedule {
    pub slots_per_epoch: u64,
    pub leader_schedule_slot_offset: u64,
    pub warmup: bool,
    pub first_normal_epoch: u64,
    pub first_normal_slot: u64,
}

Fields

slots_per_epoch: u64

The maximum number of slots in each epoch.

leader_schedule_slot_offset: u64

A number of slots before beginning of an epoch to calculate a leader schedule for that epoch

warmup: bool

whether epochs start short and grow

first_normal_epoch: u64

basically: log2(slots_per_epoch) - log2(MINIMUM_SLOTS_PER_EPOCH)

first_normal_slot: u64

basically: MINIMUM_SLOTS_PER_EPOCH * (2.pow(first_normal_epoch) - 1)

Implementations

impl EpochSchedule

pub fn new(slots_per_epoch: u64) -> EpochSchedule

pub fn without_warmup() -> EpochSchedule

pub fn custom(
    slots_per_epoch: u64,
    leader_schedule_slot_offset: u64,
    warmup: bool
) -> EpochSchedule

pub fn get_slots_in_epoch(&self, epoch: u64) -> u64

get the length of the given epoch (in slots)

pub fn get_leader_schedule_epoch(&self, slot: u64) -> u64

get the epoch for which the given slot should save off information about stakers

pub fn get_epoch(&self, slot: u64) -> u64

get epoch for the given slot

pub fn get_epoch_and_slot_index(&self, slot: u64) -> (u64, u64)

get epoch and offset into the epoch for the given slot

pub fn get_first_slot_in_epoch(&self, epoch: u64) -> u64

pub fn get_last_slot_in_epoch(&self, epoch: u64) -> u64

Trait Implementations

impl AbiExample for EpochSchedule

fn example() -> EpochSchedule

impl Clone for EpochSchedule

fn clone(&self) -> EpochSchedule

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EpochSchedule

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for EpochSchedule

fn default() -> EpochSchedule

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EpochSchedule

fn deserialize<__D>(
    __deserializer: __D
) -> Result<EpochSchedule, <__D as Deserializer<'de>>::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq<EpochSchedule> for EpochSchedule

fn eq(&self, other: &EpochSchedule) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for EpochSchedule

fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sysvar for EpochSchedule

fn get() -> Result<EpochSchedule, ProgramError>

fn size_of() -> usize

fn from_account_info(
    account_info: &AccountInfo<'_>
) -> Result<Self, ProgramError>

Deserializes a sysvar from its AccountInfo.

fn to_account_info(&self, account_info: &mut AccountInfo<'_>) -> Option<()>

impl SysvarId for EpochSchedule

fn id() -> Pubkey

fn check_id(pubkey: &Pubkey) -> bool

impl Copy for EpochSchedule

impl Eq for EpochSchedule

impl StructuralEq for EpochSchedule

impl StructuralPartialEq for EpochSchedule