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Bridge: make some headers submissions free (#4102)

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supersedes https://github.com/paritytech/parity-bridges-common/pull/2873

Draft because of couple of TODOs:
- [x] fix remaining TODOs;
- [x] double check that all changes from
https://github.com/paritytech/parity-bridges-common/pull/2873 are
correctly ported;
- [x] create a separate PR (on top of that one or a follow up?) for
https://github.com/paritytech/polkadot-sdk/tree/sv-try-new-bridge-fees;
- [x] fix compilation issues (haven't checked, but there should be
many).

---------

Co-authored-by: Adrian Catangiu <adrian@parity.io>
This commit is contained in:
Svyatoslav Nikolsky
2024-04-25 08:26:16 +03:00
committed by GitHub
parent 4f3d43a0c4
commit a633e954f3
54 changed files with 3731 additions and 616 deletions
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bridges/primitives/runtime/src/chain.rs
+20
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@@ -236,6 +236,12 @@ where
pub trait Parachain: Chain {
/// Parachain identifier.
const PARACHAIN_ID: u32;
/// Maximal size of the parachain header.
///
/// This isn't a strict limit. The relayer may submit larger headers and the
/// pallet will accept the call. The limit is only used to compute whether
/// the refund can be made.
const MAX_HEADER_SIZE: u32;
}
impl<T> Parachain for T
@@ -244,6 +250,8 @@ where
<T as UnderlyingChainProvider>::Chain: Parachain,
{
const PARACHAIN_ID: u32 = <<T as UnderlyingChainProvider>::Chain as Parachain>::PARACHAIN_ID;
const MAX_HEADER_SIZE: u32 =
<<T as UnderlyingChainProvider>::Chain as Parachain>::MAX_HEADER_SIZE;
}
/// Adapter for `Get<u32>` to access `PARACHAIN_ID` from `trait Parachain`
@@ -306,6 +314,11 @@ macro_rules! decl_bridge_finality_runtime_apis {
pub const [<BEST_FINALIZED_ $chain:upper _HEADER_METHOD>]: &str =
stringify!([<$chain:camel FinalityApi_best_finalized>]);
/// Name of the `<ThisChain>FinalityApi::free_headers_interval` runtime method.
pub const [<FREE_HEADERS_INTERVAL_FOR_ $chain:upper _METHOD>]: &str =
stringify!([<$chain:camel FinalityApi_free_headers_interval>]);
$(
/// Name of the `<ThisChain>FinalityApi::accepted_<consensus>_finality_proofs`
/// runtime method.
@@ -322,6 +335,13 @@ macro_rules! decl_bridge_finality_runtime_apis {
/// Returns number and hash of the best finalized header known to the bridge module.
fn best_finalized() -> Option<bp_runtime::HeaderId<Hash, BlockNumber>>;
/// Returns free headers interval, if it is configured in the runtime.
/// The caller expects that if his transaction improves best known header
/// at least by the free_headers_interval`, it will be fee-free.
///
/// See [`pallet_bridge_grandpa::Config::FreeHeadersInterval`] for details.
fn free_headers_interval() -> Option<BlockNumber>;
$(
/// Returns the justifications accepted in the current block.
fn [<synced_headers_ $consensus:lower _info>](