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Select header that will be fully refunded in on-demand batch finality relay (#2729)

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* select header that will be fully refunded for submission in on-demand **batch** finality relay

* added the only possible test

* spelling

* nl

* updated comment
This commit is contained in:
Svyatoslav Nikolsky
2023-12-06 15:16:02 +03:00
committed by Bastian Köcher
parent 6d35de23be
commit 6c31cdbe19
15 changed files with 222 additions and 115 deletions
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bridges/primitives/polkadot-core/src/lib.rs
+7 -18
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@@ -64,7 +64,7 @@ pub const MAX_AUTHORITIES_COUNT: u32 = 1_256;
///
/// See [`bp-header-chain::ChainWithGrandpa`] for more details.
///
/// This value comes from recent (February, 2023) Kusama and Polkadot headers. There are no
/// This value comes from recent (December, 2023) Kusama and Polkadot headers. There are no
/// justifications with any additional headers in votes ancestry, so reasonable headers may
/// be set to zero. But we assume that there may be small GRANDPA lags, so we're leaving some
/// reserve here.
@@ -75,28 +75,17 @@ pub const REASONABLE_HEADERS_IN_JUSTIFICATON_ANCESTRY: u32 = 2;
///
/// See [`bp-header-chain::ChainWithGrandpa`] for more details.
///
/// This value comes from recent (February, 2023) Kusama headers. Average is `336` there, but let's
/// have some reserve and make it 1024.
pub const AVERAGE_HEADER_SIZE_IN_JUSTIFICATION: u32 = 1024;
/// Worst-case header size in `votes_ancestries` field of justification on Polkadot-like
/// chains.
///
/// See [`bp-header-chain::ChainWithGrandpa`] for more details.
///
/// This value comes from recent (February, 2023) Kusama headers. Average is `336` there, but some
/// non-mandatory headers has size `40kb` (they contain the BABE epoch descriptor with all
/// authorities - just like our mandatory header). Since we assume `2` headers in justification
/// votes ancestry, let's set average header to `40kb / 2`.
pub const WORST_HEADER_SIZE_IN_JUSTIFICATION: u32 = 20 * 1024;
/// This value comes from recent (December, 2023) Kusama headers. Most of headers are `327` bytes
/// there, but let's have some reserve and make it 1024.
pub const AVERAGE_HEADER_SIZE: u32 = 1024;
/// Approximate maximal header size on Polkadot-like chains.
///
/// See [`bp-header-chain::ChainWithGrandpa`] for more details.
///
/// This value comes from recent (February, 2023) Kusama headers. Maximal header is a mandatory
/// header. In its SCALE-encoded form it is `80348` bytes. Let's have some reserve here.
pub const MAX_HEADER_SIZE: u32 = 90_000;
/// This value comes from recent (December, 2023) Kusama headers. Maximal header is a mandatory
/// header. In its SCALE-encoded form it is `113407` bytes. Let's have some reserve here.
pub const MAX_MANDATORY_HEADER_SIZE: u32 = 120 * 1024;
/// Number of extra bytes (excluding size of storage value itself) of storage proof, built at
/// Polkadot-like chain. This mostly depends on number of entries in the storage trie.