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allow some overhead in MERKLE_NODE_MAX_SIZE (#3724)

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* allow overhead in MERKLE_NODE_MAX_SIZE

* Update node/primitives/src/lib.rs

Co-authored-by: cheme <emericchevalier.pro@gmail.com>

Co-authored-by: cheme <emericchevalier.pro@gmail.com>
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2021-08-25 21:42:07 +02:00
committed by GitHub
parent 20d3f38726
commit 93b58f1ee4
1 changed files with 4 additions and 2 deletions
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polkadot/node/primitives/src/lib.rs
+4 -2
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@@ -52,8 +52,10 @@ pub use disputes::{
SignedDisputeStatement, UncheckedDisputeMessage, ValidDisputeVote,
};
// For a 16-ary Merkle Prefix Trie, we can expect at most 16 32-byte hashes per node.
const MERKLE_NODE_MAX_SIZE: usize = 512;
// For a 16-ary Merkle Prefix Trie, we can expect at most 16 32-byte hashes per node
// plus some overhead:
// header 1 + bitmap 2 + max partial_key 8 + children 16 * (32 + len 1) + value 32 + value len 1
const MERKLE_NODE_MAX_SIZE: usize = 512 + 100;
// 16-ary Merkle Prefix Trie for 32-bit ValidatorIndex has depth at most 8.
const MERKLE_PROOF_MAX_DEPTH: usize = 8;