2017-08-12 07:57:07 -07:00
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use std::vec;
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use std::sync::Arc;
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use futures::{Future, Stream, Poll};
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use futures::future::{JoinAll, join_all};
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use web3::Transport;
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use web3::helpers::CallResult;
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use web3::types::{TransactionRequest, H256, Log};
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use api::{LogStream, self};
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use error::{Error, ErrorKind};
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use app::App;
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2017-08-10 08:55:46 -07:00
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pub enum WithdrawRelay {
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WaitForNextLog,
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RelayTransaction,
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}
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pub enum WithdrawConfirm {
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WaitForNextLog,
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ConfirmTransaction,
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}
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2017-08-12 07:57:07 -07:00
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pub enum DepositRelayState<T: Transport> {
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Wait,
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RelayDeposits {
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future: JoinAll<Vec<CallResult<H256, T::Out>>>,
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block: u64,
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},
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Yield(Option<u64>),
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}
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pub struct DepositRelay<T: Transport> {
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app: Arc<App<T>>,
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logs: LogStream<T>,
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state: DepositRelayState<T>,
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}
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impl<T: Transport> Stream for DepositRelay<T> {
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type Item = u64;
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type Error = Error;
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fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error> {
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loop {
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let next_state = match self.state {
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DepositRelayState::Wait => match try_ready!(self.logs.poll()) {
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Some(item) => {
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let deposits = item.logs
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.into_iter()
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.map(|log| self.app.mainnet_bridge().log_to_deposit(log))
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.collect::<Result<Vec<_>, _>>()?
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.into_iter()
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.map(|deposit| -> TransactionRequest {
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unimplemented!();
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})
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.map(|request| api::send_transaction(&self.app.connections.testnet, request))
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.collect::<Vec<_>>();
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DepositRelayState::RelayDeposits {
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future: join_all(deposits),
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block: item.to
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}
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},
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None => return Ok(None.into()),
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},
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DepositRelayState::RelayDeposits { ref mut future, block } => {
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let _ = try_ready!(future.poll().map_err(ErrorKind::Web3));
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DepositRelayState::Yield(Some(block))
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},
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DepositRelayState::Yield(ref mut block) => match block.take() {
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None => DepositRelayState::Wait,
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some => return Ok(some.into()),
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}
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};
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self.state = next_state;
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}
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}
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2017-08-10 08:55:46 -07:00
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}
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pub enum DepositConfirm {
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WaitForNextLog,
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ConfirmDeposit,
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2017-06-13 01:28:04 -07:00
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}
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