Enum Fetch

pub enum Fetch {
    WorkPackage,
    AuthCodeParam,
    AuthToken,
    AuthOutput,
    AnyPayload(usize),
    AnyExtrinsic {
        work_item: usize,
        index: usize,
    },
    OurExtrinsic(usize),
    AnyImport {
        work_item: usize,
        index: usize,
    },
    OurImport(usize),
}

A definition of data to be fetched.

Variants

WorkPackage

The current work-package.

AuthCodeParam

The parameterisation of the authorization code.

AuthToken

The input provided to the parameterized authorizer code.

AuthOutput

The output from the parameterized authorizer code.

AnyPayload(usize)

A given work-item’s payload.

AnyExtrinsic

A particular extrinsic of a given work-item.

Fields

work_item: usize

The index of the work-item whose extrinsic should be fetched.

index: usize

The index of the work-item’s extrinsic to be fetched.

OurExtrinsic(usize)

A particular extrinsic of the executing work-item.

AnyImport

A particular import-segment of a given work-item.

Fields

work_item: usize

The index of the work-item whose import-segment should be fetched.

index: usize

The index of the work-item’s import-segment to be fetched.

OurImport(usize)

A particular import-segment of the executing work-item.

Implementations

impl Fetch

pub fn fetch_into(self, target: &mut [u8], skip: usize) -> Option<usize>

Fetch the data defined by this Fetch into the given target buffer.

• target: The buffer to write the fetched data into.
• skip: The number of bytes to skip from the start of the data to be fetched.

Returns the full length of the data which is being fetched. If this is smaller than the target’s length, then some of the buffer will not be written to. If the request does not identify any data to be fetched (e.g. because an index is out of range) then returns None.

pub fn len(self) -> Option<usize>

Fetch the length of the data defined by this Fetch.

Returns the length of the data which is being fetched. If the request does not identify any data to be fetched (e.g. because an index is out of range) then returns None.

pub fn fetch(self) -> Option<Vec<u8>>

Fetch the data defined by this Fetch into a newly allocated Vec.

Returns a Vec containing the data identified by the value of self. If the request does not identify any data to be fetched (e.g. because an index is out of range) then returns None.

Trait Implementations

impl Clone for Fetch

fn clone(&self) -> Fetch

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Fetch

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

Formats the value using the given formatter.

impl Copy for Fetch