Struct pallet_message_queue::BookState

pub struct BookState<MessageOrigin> { /* private fields */ }

The state of a queue as represented by a book of its pages.

Each queue has exactly one book which holds all of its pages. All pages of a book combined contain all of the messages of its queue; hence the name Book. Books can be chained together in a double-linked fashion through their ready_neighbours field.

Trait Implementations

impl<MessageOrigin: Clone> Clone for BookState<MessageOrigin>

fn clone(&self) -> BookState<MessageOrigin>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<MessageOrigin> Debug for BookState<MessageOrigin>where MessageOrigin: Debug,

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

Formats the value using the given formatter.

impl<MessageOrigin> Decode for BookState<MessageOrigin>where Option<Neighbours<MessageOrigin>>: Decode,

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self> ) -> Result<DecodeFinished, Error>where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<MessageOrigin> Default for BookState<MessageOrigin>

fn default() -> Self

Returns the “default value” for a type.

impl<MessageOrigin> Encode for BookState<MessageOrigin>where Option<Neighbours<MessageOrigin>>: Encode,

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )

Convert self to a slice and append it to the destination.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<MessageOrigin> MaxEncodedLen for BookState<MessageOrigin>where Option<Neighbours<MessageOrigin>>: MaxEncodedLen,

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl<MessageOrigin> TypeInfo for BookState<MessageOrigin>where Option<Neighbours<MessageOrigin>>: TypeInfo + 'static, MessageOrigin: TypeInfo + 'static,

type Identity = BookState<MessageOrigin>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<MessageOrigin> EncodeLike<BookState<MessageOrigin>> for BookState<MessageOrigin>where Option<Neighbours<MessageOrigin>>: Encode,