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Reward delivery confirmation transaction submitter (aka confirmation relayer) (#599)

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* reward confirmation relayer

* Update modules/message-lane/src/instant_payments.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* added some constants

* pallet_balances

* removed comment

* fix typo

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
This commit is contained in:
Svyatoslav Nikolsky
2021-01-15 00:11:51 +03:00
committed by Bastian Köcher
parent 2cfd2e72b7
commit f3ea6a8d3d
8 changed files with 253 additions and 63 deletions
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bridges/primitives/message-lane/src/source_chain.rs
+21 -7
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@@ -16,14 +16,26 @@
//! Primitives of message lane module, that are used on the source chain.
use crate::{InboundLaneData, LaneId};
use crate::{InboundLaneData, LaneId, MessageNonce};
use frame_support::Parameter;
use sp_std::fmt::Debug;
use frame_support::{Parameter, RuntimeDebug};
use sp_std::{collections::btree_map::BTreeMap, fmt::Debug};
/// The sender of the message on the source chain.
pub type Sender<AccountId> = frame_system::RawOrigin<AccountId>;
/// Relayers rewards, grouped by relayer account id.
pub type RelayersRewards<AccountId, Balance> = BTreeMap<AccountId, RelayerRewards<Balance>>;
/// Single relayer rewards.
#[derive(RuntimeDebug, Default)]
pub struct RelayerRewards<Balance> {
/// Total rewards that are to be paid to the relayer.
pub reward: Balance,
/// Total number of messages relayed by this relayer.
pub messages: MessageNonce,
}
/// Target chain API. Used by source chain to verify target chain proofs.
///
/// All implementations of this trait should only work with finalized data that
@@ -102,11 +114,13 @@ pub trait MessageDeliveryAndDispatchPayment<AccountId, Balance> {
relayer_fund_account: &AccountId,
) -> Result<(), Self::Error>;
/// Pay reward for delivering message to the given relayer account.
fn pay_relayer_reward(
/// Pay rewards for delivering messages to the given relayers.
///
/// The implementation may also choose to pay reward to the `confirmation_relayer`, which is
/// a relayer that has submitted delivery confirmation transaction.
fn pay_relayers_rewards(
confirmation_relayer: &AccountId,
relayer: &AccountId,
reward: &Balance,
relayers_rewards: RelayersRewards<AccountId, Balance>,
relayer_fund_account: &AccountId,
);