Struct solana_sdk::sysvar::rent::Rent

[+] Show declaration

[+] Expand attributes
#[repr(C)]pub struct Rent {
    pub lamports_per_byte_year: u64,
    pub exemption_threshold: f64,
    pub burn_percent: u8,
}

Fields

lamports_per_byte_year: u64

[−] Expand description

Rental rate

exemption_threshold: f64

[−] Expand description

exemption threshold, in years

burn_percent: u8

Implementations

impl Rent[−]

pub fn calculate_burn(&self, rent_collected: u64) -> (u64, u64)[−]

calculate how much rent to burn from the collected rent

pub fn minimum_balance(&self, data_len: usize) -> u64[−]

minimum balance due for a given size Account::data.len()

Note: a stripped-down version of this calculation is used in calculate_split_rent_exempt_reserve in the stake program. When this function is updated, – eg. when making rent variable – the stake program will need to be refactored

pub fn is_exempt(&self, balance: u64, data_len: usize) -> bool[−]

whether a given balance and data_len would be exempt

pub fn due(
    &self,
    balance: u64,
    data_len: usize,
    years_elapsed: f64
) -> (u64, bool)[−]

rent due on account’s data_len with balance

pub fn free() -> Rent

Trait Implementations

impl Clone for Rent[+]

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pub fn clone(&self) -> Rent[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for Rent

impl Debug for Rent[+]

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

Formats the value using the given formatter.

impl Default for Rent[+]

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pub fn default() -> Rent[−]

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Rent[+]

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pub fn deserialize<__D>(
    __deserializer: __D
) -> Result<Rent, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, [−]

Deserialize this value from the given Serde deserializer.

impl PartialEq<Rent> for Rent[+]

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pub fn eq(&self, other: &Rent) -> bool[−]

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

pub fn ne(&self, other: &Rent) -> bool[−]

This method tests for !=.

impl Serialize for Rent[+]

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pub 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 StructuralPartialEq for Rent

impl Sysvar for Rent[+]

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pub fn size_of() -> usize

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

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

impl SysvarId for Rent[+]

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pub fn check_id(pubkey: &Pubkey) -> bool