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Declare declare_bridge_chain_runtime_apis! macro

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Signed-off-by: Serban Iorga <serban@parity.io>
This commit is contained in:
Serban Iorga
2022-08-16 17:19:33 +03:00
committed by Bastian Köcher
parent 5cc874e7b8
commit 59c168e89b
15 changed files with 113 additions and 490 deletions
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bridges/primitives/chain-rococo/src/lib.rs
+2 -69
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@@ -29,6 +29,7 @@ use sp_std::prelude::*;
use sp_version::RuntimeVersion;
pub use bp_polkadot_core::*;
use bp_runtime::declare_bridge_chain_runtime_apis;
/// Rococo Chain
pub type Rococo = PolkadotLike;
@@ -74,19 +75,6 @@ pub const WITH_ROCOCO_GRANDPA_PALLET_NAME: &str = "BridgeRococoGrandpa";
/// Name of the With-Rococo messages pallet instance that is deployed at bridged chains.
pub const WITH_ROCOCO_MESSAGES_PALLET_NAME: &str = "BridgeRococoMessages";
/// Name of the `RococoFinalityApi::best_finalized` runtime method.
pub const BEST_FINALIZED_ROCOCO_HEADER_METHOD: &str = "RococoFinalityApi_best_finalized";
/// Name of the `ToRococoOutboundLaneApi::estimate_message_delivery_and_dispatch_fee` runtime
/// method.
pub const TO_ROCOCO_ESTIMATE_MESSAGE_FEE_METHOD: &str =
"ToRococoOutboundLaneApi_estimate_message_delivery_and_dispatch_fee";
/// Name of the `ToRococoOutboundLaneApi::message_details` runtime method.
pub const TO_ROCOCO_MESSAGE_DETAILS_METHOD: &str = "ToRococoOutboundLaneApi_message_details";
/// Name of the `FromRococoInboundLaneApi::message_details` runtime method.
pub const FROM_ROCOCO_MESSAGE_DETAILS_METHOD: &str = "FromRococoInboundLaneApi_message_details";
/// Existential deposit on Rococo.
pub const EXISTENTIAL_DEPOSIT: Balance = 1_000_000_000_000 / 100;
@@ -99,59 +87,4 @@ pub const EXISTENTIAL_DEPOSIT: Balance = 1_000_000_000_000 / 100;
/// transactions cheaper.
pub const PAY_INBOUND_DISPATCH_FEE_WEIGHT: Weight = 600_000_000;
sp_api::decl_runtime_apis! {
/// API for querying information about the finalized Rococo headers.
///
/// This API is implemented by runtimes that are bridging with the Rococo chain, not the
/// Rococo runtime itself.
pub trait RococoFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
fn best_finalized() -> Option<bp_runtime::HeaderId<Hash, BlockNumber>>;
}
/// Outbound message lane API for messages that are sent to Rococo chain.
///
/// This API is implemented by runtimes that are sending messages to Rococo chain, not the
/// Rococo runtime itself.
pub trait ToRococoOutboundLaneApi<OutboundMessageFee: Parameter, OutboundPayload: Parameter> {
/// Estimate message delivery and dispatch fee that needs to be paid by the sender on
/// this chain.
///
/// Returns `None` if message is too expensive to be sent to Rococo from this chain.
///
/// Please keep in mind that this method returns the lowest message fee required for message
/// to be accepted to the lane. It may be good idea to pay a bit over this price to account
/// future exchange rate changes and guarantee that relayer would deliver your message
/// to the target chain.
fn estimate_message_delivery_and_dispatch_fee(
lane_id: LaneId,
payload: OutboundPayload,
rococo_to_this_conversion_rate: Option<FixedU128>,
) -> Option<OutboundMessageFee>;
/// Returns dispatch weight, encoded payload size and delivery+dispatch fee of all
/// messages in given inclusive range.
///
/// If some (or all) messages are missing from the storage, they'll also will
/// be missing from the resulting vector. The vector is ordered by the nonce.
fn message_details(
lane: LaneId,
begin: MessageNonce,
end: MessageNonce,
) -> Vec<OutboundMessageDetails<OutboundMessageFee>>;
}
/// Inbound message lane API for messages sent by Rococo chain.
///
/// This API is implemented by runtimes that are receiving messages from Rococo chain, not the
/// Rococo runtime itself.
///
/// Entries of the resulting vector are matching entries of the `messages` vector. Entries of the
/// `messages` vector may (and need to) be read using `To<ThisChain>OutboundLaneApi::message_details`.
pub trait FromRococoInboundLaneApi<InboundMessageFee: Parameter> {
/// Return details of given inbound messages.
fn message_details(
lane: LaneId,
messages: Vec<(MessagePayload, OutboundMessageDetails<InboundMessageFee>)>,
) -> Vec<InboundMessageDetails>;
}
}
declare_bridge_chain_runtime_apis!(rococo);