Struct ArkToHost 

pub struct ArkToHost {
    pub id: u64,
    pub err: Option<Error>,
    pub content: Option<Content>,
}

ArkToHost represents a message sent from the Ark to the host via the USB connection. It embeds all possible message types to keep the protocol simple.

Every message carries an id and is either a request, its id chosen by the Ark, or the Ark’s response to a request of the host, echoing the host’s id. To avoid id collisions, hosts allocate odd ids and Arks even ones, so a receiver can tell a response from a request by the parity of the id alone.

Fields

id: u64

Enveloping fields, reserved range 0x001-0x0ff

Request identifier, responded to or the Ark’s own

err: Option<Error>

Error encountered while serving the host’s request (if any)

content: Option<Content>

Trait Implementations

impl Clone for ArkToHost

fn clone(&self) -> ArkToHost

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArkToHost

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

Formats the value using the given formatter.

impl Default for ArkToHost

fn default() -> Self

Returns the “default value” for a type.

impl Message for ArkToHost

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for ArkToHost

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ArkToHost