Struct solana_program::epoch_schedule::EpochSchedule

#[repr(C)]
pub struct EpochSchedule {
    pub slots_per_epoch: u64,
    pub leader_schedule_slot_offset: u64,
    pub warmup: bool,
    pub first_normal_epoch: Epoch,
    pub first_normal_slot: Slot,
}

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: Epoch

basically: log2(slots_per_epoch) - log2(MINIMUM_SLOTS_PER_EPOCH)

first_normal_slot: Slot

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

Implementations

impl EpochSchedule

pub fn new(slots_per_epoch: u64) -> Self

pub fn without_warmup() -> Self

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

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

get the length of the given epoch (in slots)

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

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

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

get epoch for the given slot

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

get epoch and offset into the epoch for the given slot

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

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

Trait Implementations

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

Formats the value using the given formatter.

impl Default for EpochSchedule

fn default() -> Self

Returns the “default value” for a type.

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

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::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: &EpochSchedule) -> bool

This method tests for !=.

impl Serialize for EpochSchedule

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

Serialize this value into the given Serde serializer.

impl Sysvar for EpochSchedule

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

fn size_of() -> usize

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

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 StructuralPartialEq for EpochSchedule