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ChainWithGrandpa in primitives (#1885)

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* ChainWithGrandpa in primitives

* clippy ++ spelling

* fix benchmarks comppilation
This commit is contained in:
Svyatoslav Nikolsky
2023-02-16 15:20:45 +03:00
committed by Bastian Köcher
parent 914213d0af
commit c6c39be967
33 changed files with 421 additions and 139 deletions
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bridges/primitives/polkadot-core/src/lib.rs
+22
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@@ -53,6 +53,28 @@ pub mod parachains;
/// take twice as much here.
pub const MAX_AUTHORITIES_COUNT: u32 = 2_048;
/// Reasonable number of headers in the `votes_ancestries` on Polkadot-like chains.
///
/// See [`bp_header_chain::ChainWithGrandpa`] for more details.
pub const REASONABLE_HEADERS_IN_JUSTIFICATON_ANCESTRY: u32 = 8;
/// Approximate average header size in `votes_ancestries` field of justification on Polkadot-like
/// chains.
///
/// See [`bp_header_chain::ChainWithGrandpa`] for more details.
pub const AVERAGE_HEADER_SIZE_IN_JUSTIFICATION: u32 = 256;
/// Approximate maximal header size on Polkadot-like chains.
///
/// We expect maximal header to have digest item with the new authorities set for every consensus
/// engine (GRANDPA, Babe, BEEFY, ...) - so we multiply it by 3. And also
/// `AVERAGE_HEADER_SIZE_IN_JUSTIFICATION` bytes for other stuff.
///
/// See [`bp_header_chain::ChainWithGrandpa`] for more details.
pub const MAX_HEADER_SIZE: u32 = MAX_AUTHORITIES_COUNT
.saturating_mul(3)
.saturating_add(AVERAGE_HEADER_SIZE_IN_JUSTIFICATION);
/// 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.
/// Some reserve is reserved to account future chain growth.