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avoid data copies in writing to cache (#23674)

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This commit is contained in:
Jeff Washington (jwash)
2022-03-15 16:42:26 -05:00
committed by GitHub
parent 29af42f428
commit b5a99b9b09
2 changed files with 28 additions and 1 deletions
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15
runtime/src/accounts_db.rs
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@ -57,7 +57,7 @@ use {
solana_measure::measure::Measure,
solana_rayon_threadlimit::get_thread_count,
solana_sdk::{
account::{AccountSharedData, ReadableAccount},
account::{AccountSharedData, ReadableAccount, WritableAccount},
clock::{BankId, Epoch, Slot, SlotCount},
epoch_schedule::EpochSchedule,
genesis_config::{ClusterType, GenesisConfig},
@ -566,6 +566,19 @@ impl<'a> ReadableAccount for LoadedAccount<'a> {
LoadedAccount::Cached(cached_account) => cached_account.account.rent_epoch(),
}
}
fn to_account_shared_data(&self) -> AccountSharedData {
match self {
LoadedAccount::Stored(_stored_account_meta) => AccountSharedData::create(
self.lamports(),
self.data().to_vec(),
*self.owner(),
self.executable(),
self.rent_epoch(),
),
// clone here to prevent data copy
LoadedAccount::Cached(cached_account) => cached_account.account.clone(),
}
}
}
#[derive(Clone, Default, Debug)]