Struct solana_program_runtime::accounts_data_meter::AccountsDataMeter

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pub struct AccountsDataMeter { /* private fields */ }

Expand description

Meter and track the amount of available accounts data space

Implementations

impl AccountsDataMeter

pub fn new(initial_accounts_data_len: u64) -> Self

Make a new AccountsDataMeter

pub fn maximum(&self) -> u64

Return the maximum amount of accounts data space that can be used (in bytes)

pub fn initial(&self) -> u64

Return the initial amount of accounts data space used (in bytes)

pub fn delta(&self) -> i64

Return the amount of accounts data space that has changed (in bytes)

pub fn current(&self) -> u64

Return the current amount of accounts data space used (in bytes)

pub fn remaining(&self) -> u64

Get the remaining amount of accounts data space (in bytes)

pub fn adjust_delta(&mut self, amount: i64) -> Result<(), InstructionError>

Adjust the space used by accounts data by amount (in bytes).

If amount is positive, we increase the space used by accounts data. If amount is negative, we decrease the space used by accounts data. If amount is greater than the remaining space, return an error and do not adjust accounts data space.

pub fn adjust_delta_unchecked(&mut self, amount: i64)

Unconditionally adjust accounts data space. Refer to adjust_delta() for more documentation.

Trait Implementations

impl Clone for AccountsDataMeter

fn clone(&self) -> AccountsDataMeter

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for AccountsDataMeter

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

Formats the value using the given formatter. Read more

impl Default for AccountsDataMeter

fn default() -> AccountsDataMeter

Returns the “default value” for a type. Read more

impl PartialEq<AccountsDataMeter> for AccountsDataMeter

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

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

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

This method tests for !=.

impl Copy for AccountsDataMeter

impl Eq for AccountsDataMeter

impl StructuralEq for AccountsDataMeter

impl StructuralPartialEq for AccountsDataMeter

Auto Trait Implementations

impl RefUnwindSafe for AccountsDataMeter

impl Send for AccountsDataMeter

impl Sync for AccountsDataMeter

impl Unpin for AccountsDataMeter

impl UnwindSafe for AccountsDataMeter

Blanket Implementations

impl<T> AbiExample for T

default fn example() -> T

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V