Struct ic_cdk::api::stable::CanisterStableMemory

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pub struct CanisterStableMemory {}

Expand description

A standard implementation of StableMemory.

Useful for creating StableWriter and StableReader.

Trait Implementations

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impl Default for CanisterStableMemory

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fn default() -> CanisterStableMemory

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

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impl StableMemory for CanisterStableMemory

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fn stable_size(&self) -> u32

Gets current size of the stable memory (in WASM pages).

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fn stable64_size(&self) -> u64

Similar to stable_size but with support for 64-bit addressed memory.

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fn stable_grow(&self, new_pages: u32) -> Result<u32, StableMemoryError>

Attempts to grow the stable memory by new_pages (added pages). Read more

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fn stable64_grow(&self, new_pages: u64) -> Result<u64, StableMemoryError>

Similar to stable_grow but with support for 64-bit addressed memory.

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fn stable_write(&self, offset: u32, buf: &[u8])

Writes data to the stable memory location specified by an offset. Read more

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fn stable64_write(&self, offset: u64, buf: &[u8])

Similar to stable_write but with support for 64-bit addressed memory.

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fn stable_read(&self, offset: u32, buf: &mut [u8])

Reads data from the stable memory location specified by an offset.

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fn stable64_read(&self, offset: u64, buf: &mut [u8])

Similar to stable_read but with support for 64-bit addressed memory.

Auto Trait Implementations

impl RefUnwindSafe for CanisterStableMemory

impl Send for CanisterStableMemory

impl Sync for CanisterStableMemory

impl Unpin for CanisterStableMemory

impl UnwindSafe for CanisterStableMemory

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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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

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into 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.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T, U> TryFrom 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>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct ic_cdk::api::stable::CanisterStableMemory

Trait Implementations

impl Default for CanisterStableMemory

fn default() -> CanisterStableMemory

impl StableMemory for CanisterStableMemory

fn stable_size(&self) -> u32

fn stable64_size(&self) -> u64

fn stable_grow(&self, new_pages: u32) -> Result<u32, StableMemoryError>

fn stable64_grow(&self, new_pages: u64) -> Result<u64, StableMemoryError>

fn stable_write(&self, offset: u32, buf: &[u8])

fn stable64_write(&self, offset: u64, buf: &[u8])

fn stable_read(&self, offset: u32, buf: &mut [u8])

fn stable64_read(&self, offset: u64, buf: &mut [u8])

Auto Trait Implementations

impl RefUnwindSafe for CanisterStableMemory

impl Send for CanisterStableMemory

impl Sync for CanisterStableMemory

impl Unpin for CanisterStableMemory

impl UnwindSafe for CanisterStableMemory

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

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

type Error = Infallible

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

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

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

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

Struct ic_cdk::api::stable::CanisterStableMemory

Trait Implementations

impl Default for CanisterStableMemory

fn default() -> CanisterStableMemory

impl StableMemory for CanisterStableMemory

fn stable_size(&self) -> u32

fn stable64_size(&self) -> u64

fn stable_grow(&self, new_pages: u32) -> Result<u32, StableMemoryError>

fn stable64_grow(&self, new_pages: u64) -> Result<u64, StableMemoryError>

fn stable_write(&self, offset: u32, buf: &[u8])

fn stable64_write(&self, offset: u64, buf: &[u8])

fn stable_read(&self, offset: u32, buf: &mut [u8])

fn stable64_read(&self, offset: u64, buf: &mut [u8])

Auto Trait Implementations

impl RefUnwindSafe for CanisterStableMemory

impl Send for CanisterStableMemory

impl Sync for CanisterStableMemory

impl Unpin for CanisterStableMemory

impl UnwindSafe for CanisterStableMemory

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

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

type Error = Infallible

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

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

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

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

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

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

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

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

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

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