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add global stake warmup (#5483)

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* add global stake warmup

* integrate stake history into runtime

* fixup core tests

* fixup

* remove existing cooldown tests for now
This commit is contained in:
Rob Walker
2019-08-12 20:59:57 -07:00
committed by GitHub
parent 7981431f09
commit 07d11be6ab
8 changed files with 549 additions and 239 deletions
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21
sdk/src/sysvar/stake_history.rs
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@ -19,14 +19,14 @@ crate::solana_name_id!(ID, "SysvarStakeHistory1111111111111111111111111");
pub const MAX_STAKE_HISTORY: usize = 512; // it should never take as many as 512 epochs to warm up or cool down
#[derive(Debug, Serialize, Deserialize, PartialEq, Default)]
#[derive(Debug, Serialize, Deserialize, PartialEq, Default, Clone)]
pub struct StakeHistoryEntry {
pub previous_effective: u64, // effective stake at the previous epoch
pub activating: u64, // requested to be warmed up, not fully activated yet
pub deactivating: u64, // requested to be cooled down, not fully deactivated yet
pub effective: u64, // effective stake at this epoch
pub activating: u64, // sum of portion of stakes not fully warmed up
pub deactivating: u64, // requested to be cooled down, not fully deactivated yet
}
#[derive(Debug, Serialize, Deserialize, PartialEq, Default)]
#[derive(Debug, Serialize, Deserialize, PartialEq, Default, Clone)]
pub struct StakeHistory {
inner: HashMap<Epoch, StakeHistoryEntry>,
}
@ -64,9 +64,9 @@ impl Deref for StakeHistory {
}
}
pub fn create_account(lamports: u64) -> Account {
pub fn create_account(lamports: u64, stake_history: &StakeHistory) -> Account {
let mut account = Account::new(lamports, StakeHistory::size_of(), &sysvar::id());
StakeHistory::default().to(&mut account).unwrap();
stake_history.to(&mut account).unwrap();
account
}
@ -86,7 +86,7 @@ mod tests {
#[test]
fn test_create_account() {
let lamports = 42;
let account = create_account(lamports);
let account = create_account(lamports, &StakeHistory::default());
assert_eq!(account.data.len(), StakeHistory::size_of());
let stake_history = StakeHistory::from(&account);
@ -104,5 +104,10 @@ mod tests {
}
assert_eq!(stake_history.len(), MAX_STAKE_HISTORY);
assert_eq!(*stake_history.keys().min().unwrap(), 1);
// verify the account can hold a full instance
assert_eq!(
StakeHistory::from(&create_account(lamports, &stake_history)),
Some(stake_history)
);
}
}