Struct damn_vuln_blockchain::chain::Chain

pub struct Chain { /* fields omitted */ }

Ledger data-structure for the blockchain

Implementations

impl Chain

Chain supports the followings messages:

• AddBlock: adds a Block to the blockchain
• GetLastBlock: get's the latest Block in the blockchain
• DumpLedger: dumps the entire ledger
• ReplaceChain: replaces a Vec inside the Chain data-structure, useful when synchronising ledgers

pub fn new(name: &str) -> Chain

create new blockchain

pub fn get_last_block(&self) -> &Block

get the last block in the chain

pub fn add_block(
    &mut self,
    block: Block,
    network_size: usize
) -> ChainResult<usize>

add a block to the chain ChainError::GenesisBlockAdditionError error is returned when a genesis block is passed. Genesis blocks are only valid when a chain is created.

pub fn is_valid(chain: &Vec<Block>) -> ChainResult<()>

checks if a blockchain is valid by comparing the hash of the previous element with the block.prev of the next element in the blockchain

pub fn replace_chain(&mut self, chain: Vec<Block>) -> ChainResult<()>

Trait Implementations

impl Actor for Chain

type Context = Context<Self>

Actor execution context type

fn started(&mut self, ctx: &mut Self::Context)

Called when an actor gets polled the first time.

fn stopping(&mut self, ctx: &mut Self::Context) -> Running

Called after an actor is in Actor::Stopping state.

fn stopped(&mut self, ctx: &mut Self::Context)

Called after an actor is stopped.

fn start(self) -> Addr<Self> where
    Self: Actor<Context = Context<Self>>, 

Start a new asynchronous actor, returning its address.

fn start_default() -> Addr<Self> where
    Self: Actor<Context = Context<Self>> + Default, 

Construct and start a new asynchronous actor, returning its address.

fn start_in_arbiter<F>(arb: &Arbiter, f: F) -> Addr<Self> where
    F: FnOnce(&mut Context<Self>) -> Self + Send + 'static,
    Self: Actor<Context = Context<Self>>, 

Start new actor in arbiter's thread.

fn create<F>(f: F) -> Addr<Self> where
    F: FnOnce(&mut Context<Self>) -> Self,
    Self: Actor<Context = Context<Self>>, 

Start a new asynchronous actor given a Context.

impl Clone for Chain

fn clone(&self) -> Chain

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Chain

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Chain

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

Deserialize this value from the given Serde deserializer.

impl Handler<AddBlock> for Chain

type Result = MessageResult<AddBlock>

The type of value that this handler will return.

fn handle(&mut self, msg: AddBlock, _ctx: &mut Self::Context) -> Self::Result

This method is called for every message received by this actor.

impl Handler<DumpLedger> for Chain

type Result = MessageResult<DumpLedger>

The type of value that this handler will return.

fn handle(&mut self, _msg: DumpLedger, _ctx: &mut Self::Context) -> Self::Result

This method is called for every message received by this actor.

impl Handler<GetLastBlock> for Chain

type Result = MessageResult<GetLastBlock>

The type of value that this handler will return.

fn handle(
    &mut self,
    _msg: GetLastBlock,
    _ctx: &mut Self::Context
) -> Self::Result

This method is called for every message received by this actor.

impl Handler<ReplaceChain> for Chain

type Result = MessageResult<ReplaceChain>

The type of value that this handler will return.

fn handle(
    &mut self,
    msg: ReplaceChain,
    _ctx: &mut Self::Context
) -> Self::Result

This method is called for every message received by this actor.

impl Serialize for Chain

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

Serialize this value into the given Serde serializer.