Struct exonum_configuration::Vote

pub struct Vote { /* fields omitted */ }

Vote for the new configuration.

Notes

The stored version of the transaction has a special variant corresponding to absence of a vote. See MaybeVote for details.

See ErrorCode for the description of error codes emitted by the execute() method.

Methods

impl Vote

pub fn new(from: &PublicKey, cfg_hash: &Hash, secret_key: &SecretKey) -> Vote

Creates message and signs it.

pub fn new_with_signature(
    from: &PublicKey,
    cfg_hash: &Hash,
    signature: &Signature
) -> Vote

Creates message and appends existing signature.

pub fn to_hex(&self) -> String

Returns the hex representation of the binary data. Lower case letters are used (e.g. f9b4ca).

pub fn from(&self) -> &PublicKey

Sender of the transaction.

Should be one of validators as per the active configuration.

pub fn cfg_hash(&self) -> &Hash

Hash of the configuration that this vote is for.

See crate docs for more details on how the hash is calculated.

Trait Implementations

impl Clone for Vote

fn clone(&self) -> Vote

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Vote

fn eq(&self, __arg_0: &Vote) -> bool

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

fn ne(&self, __arg_0: &Vote) -> bool

This method tests for !=.

impl ServiceMessage for Vote

const SERVICE_ID: u16

SERVICE_ID: u16 = super::SERVICE_ID

ID of the service this message belongs to.

const MESSAGE_ID: u16

MESSAGE_ID: u16 = 0 + 1

ID of the message itself. Should be unique within a service.

impl Message for Vote

fn from_raw(raw: RawMessage) -> Result<Vote, Error>

Converts the raw message into the specific one.

fn raw(&self) -> &RawMessage

Returns raw message.

fn verify_signature(&self, pub_key: &PublicKey) -> bool

Verifies the message using given public key.

impl<'a> SegmentField<'a> for Vote

fn item_size() -> Offset

size of item fixed part that this Field collect.

fn count(&self) -> Offset

count of items in collection

fn extend_buffer(&self, buffer: &mut Vec<u8>)

extend buffer with this collection

unsafe fn from_buffer(buffer: &'a [u8], from: Offset, count: Offset) -> Self

create collection from buffer

fn check_data(
    buffer: &'a [u8],
    from: CheckedOffset,
    count: CheckedOffset,
    latest_segment: CheckedOffset
) -> Result

check collection data

impl AsRef<RawMessage> for Vote

fn as_ref(&self) -> &RawMessage

Performs the conversion.

impl FromHex for Vote

type Error = Error

fn from_hex<T: AsRef<[u8]>>(hex: T) -> Result<Self, Self::Error>

Creates an instance of type Self from the given hex string, or fails with a custom error type.

impl StorageValue for Vote

Important traits for Vec<u8>

impl Write for Vec<u8>

fn into_bytes(self) -> Vec<u8>

Serialize a value into a vector of bytes.

fn from_bytes(value: Cow<[u8]>) -> Self

Deserialize a value from bytes.

impl Debug for Vote

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

Formats the value using the given formatter.

impl ExonumJson for Vote

fn deserialize_field<B>(
    value: &Value,
    buffer: &mut B,
    from: Offset,
    to: Offset
) -> Result<(), Box<Error>> where
    B: WriteBufferWrapper, 

write deserialized field in buffer on place.

fn serialize_field(&self) -> Result<Value, Box<Error + Send + Sync>>

serialize field as json::Value

impl ExonumJsonDeserialize for Vote

fn deserialize(value: &Value) -> Result<Self, Box<Error>>

deserialize json value.

impl<'de> Deserialize<'de> for Vote

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Serialize for Vote

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl Transaction for Vote

fn verify(&self) -> bool

Verifies the internal consistency of the transaction. verify should usually include checking the message signature (via [verify_signature]) and, possibly, other internal constraints. verify has no access to the blockchain state; checks involving the blockchains state must be preformed in execute.

fn execute(&self, fork: &mut Fork) -> ExecutionResult

Receives a fork of the current blockchain state and can modify it depending on the contents of the transaction.