38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
//! The Epoch Accounts Hash (EAH) is a special hash of the whole accounts state that occurs once
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//! per epoch.
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//!
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//! This hash is special because all nodes in the cluster will calculate the accounts hash at a
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//! predetermined slot in the epoch and then save that result into a later Bank at a predetermined
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//! slot.
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//!
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//! This results in all nodes effectively voting on the accounts state (at least) once per epoch.
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use {crate::accounts_hash::AccountsHash, solana_sdk::hash::Hash};
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mod manager;
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pub use manager::Manager as EpochAccountsHashManager;
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/// The EpochAccountsHash holds the result after calculating the accounts hash once per epoch
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#[derive(Debug, Serialize, Deserialize, Hash, PartialEq, Eq, Clone, Copy)]
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pub struct EpochAccountsHash(Hash);
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impl AsRef<Hash> for EpochAccountsHash {
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fn as_ref(&self) -> &Hash {
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&self.0
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}
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}
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impl EpochAccountsHash {
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/// Make an EpochAccountsHash from a regular accounts hash
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#[must_use]
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pub const fn new(accounts_hash: Hash) -> Self {
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Self(accounts_hash)
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}
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}
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impl From<AccountsHash> for EpochAccountsHash {
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fn from(accounts_hash: AccountsHash) -> EpochAccountsHash {
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Self::new(accounts_hash.0)
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}
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}
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