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Reward relayers for dispatching messages (#385)

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* reward relayers for dispatching messages

* clippy

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

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

* added comment

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

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

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

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* SubmitterId + RelayerId -> AccountId

* add confirmation_relayer arg to pay_relayer_reward

* cargo fmt --all

* removed verify_and_decode_messages_proof from SourceHeaderChain

* &mut self -> RefCell

* Optimize max messages at inbound lane (#418)

* Add tests for checking messages above max limit

Signed-off-by: MaciejBaj <macie.baj@gmail.com>

* Extend the relayers entry of inbound lane by additional msg nonce

Signed-off-by: MaciejBaj <macie.baj@gmail.com>

* Support additional message nonce from inbound relayers

Signed-off-by: MaciejBaj <macie.baj@gmail.com>

* Code format

Signed-off-by: MaciejBaj <macie.baj@gmail.com>

* Merge messages range for highest relayers

* Change unwrap() to ensure() while accessing relayers

* Edit rustdocs for relayers deque at inbound lane data

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

* Declare additional relayers A & B and use across tests consistently

Signed-off-by: MaciejBaj <macie.baj@gmail.com>

* Remove duplicates and improve naming for inbound lane tests

* Fix test checking max limit per inbound lane

* Correct relayers rewards loop after a proof is received

* Remove redundant check for messages ahead of received range

* Correct grammar at inbound lane tests rustdocs

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

* Improve code quality of relayers updates 💅

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Test dispatches above max limit from same relayer

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

* Fix typo.

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Maciej Baj <macie.baj@gmail.com>
Co-authored-by: Tomasz Drwięga <tomasz@parity.io>
This commit is contained in:
Svyatoslav Nikolsky
2020-10-20 13:12:35 +03:00
committed by Bastian Köcher
parent c42023269a
commit bff930d01e
6 changed files with 649 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bridges/primitives/message-lane/src/lib.rs
+28 -4
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@@ -25,7 +25,7 @@
use codec::{Decode, Encode};
use frame_support::RuntimeDebug;
use sp_api::decl_runtime_apis;
use sp_std::prelude::*;
use sp_std::{collections::vec_deque::VecDeque, prelude::*};
pub mod source_chain;
pub mod target_chain;
@@ -70,14 +70,38 @@ pub struct Message<Fee> {
}
/// Inbound lane data.
#[derive(Default, Encode, Decode, Clone, RuntimeDebug, PartialEq)]
pub struct InboundLaneData {
#[derive(Encode, Decode, Clone, RuntimeDebug, PartialEq, Eq)]
pub struct InboundLaneData<RelayerId> {
/// Identifiers of relayers and messages that they have delivered (ordered by message nonce).
/// It is guaranteed to have at most N entries, where N is configured at module level. If
/// there are N entries in this vec, then:
/// 1) all incoming messages are rejected if they're missing corresponding `proof-of(outbound-lane.state)`;
/// 2) all incoming messages are rejected if `proof-of(outbound-lane.state).latest_received_nonce` is
/// equal to `this.latest_confirmed_nonce`.
/// Given what is said above, all nonces in this queue are in range (latest_confirmed_nonce; latest_received_nonce].
///
/// When a relayer sends a single message, both of MessageNonces are the same.
/// When relayer sends messages in a batch, the first arg is the lowest nonce, second arg the highest nonce.
/// Multiple dispatches from the same relayer one are allowed.
pub relayers: VecDeque<(MessageNonce, MessageNonce, RelayerId)>,
/// Nonce of latest message that we have received from bridged chain.
pub latest_received_nonce: MessageNonce,
/// Nonce of latest message that has been confirmed to the bridged chain.
pub latest_confirmed_nonce: MessageNonce,
}
impl<RelayerId> Default for InboundLaneData<RelayerId> {
fn default() -> Self {
InboundLaneData {
relayers: VecDeque::new(),
latest_received_nonce: 0,
latest_confirmed_nonce: 0,
}
}
}
/// Outbound lane data.
#[derive(Encode, Decode, Clone, RuntimeDebug, PartialEq)]
#[derive(Encode, Decode, Clone, RuntimeDebug, PartialEq, Eq)]
pub struct OutboundLaneData {
/// Nonce of oldest message that we haven't yet pruned. May point to not-yet-generated message if
/// all sent messages are already pruned.