2020-11-30 09:18:33 -08:00
|
|
|
use serde::de::{Deserialize, Deserializer};
|
|
|
|
use serde::ser::{Serialize, Serializer};
|
2020-12-17 13:22:50 -08:00
|
|
|
use solana_sdk::{account::Account, instruction::InstructionError, pubkey::Pubkey};
|
2020-11-30 09:18:33 -08:00
|
|
|
use solana_vote_program::vote_state::VoteState;
|
2020-12-17 13:22:50 -08:00
|
|
|
use std::{
|
|
|
|
borrow::Borrow,
|
|
|
|
cmp::Ordering,
|
|
|
|
collections::{hash_map::Entry, HashMap},
|
|
|
|
iter::FromIterator,
|
|
|
|
ops::Deref,
|
|
|
|
sync::{Arc, Once, RwLock, RwLockReadGuard},
|
|
|
|
};
|
2020-11-30 09:18:33 -08:00
|
|
|
|
|
|
|
// The value here does not matter. It will be overwritten
|
|
|
|
// at the first call to VoteAccount::vote_state().
|
|
|
|
const INVALID_VOTE_STATE: Result<VoteState, InstructionError> =
|
|
|
|
Err(InstructionError::InvalidAccountData);
|
|
|
|
|
|
|
|
#[derive(Clone, Debug, Default, PartialEq, AbiExample)]
|
|
|
|
pub struct ArcVoteAccount(Arc<VoteAccount>);
|
|
|
|
|
|
|
|
#[derive(Debug, AbiExample)]
|
|
|
|
pub struct VoteAccount {
|
|
|
|
account: Account,
|
|
|
|
vote_state: RwLock<Result<VoteState, InstructionError>>,
|
|
|
|
vote_state_once: Once,
|
|
|
|
}
|
|
|
|
|
2020-12-17 13:22:50 -08:00
|
|
|
#[derive(Debug, AbiExample)]
|
|
|
|
pub struct VoteAccounts {
|
|
|
|
vote_accounts: HashMap<Pubkey, (u64 /*stake*/, ArcVoteAccount)>,
|
|
|
|
staked_nodes: RwLock<
|
|
|
|
HashMap<
|
|
|
|
Pubkey, // VoteAccount.vote_state.node_pubkey.
|
|
|
|
u64, // Total stake across all vote-accounts.
|
|
|
|
>,
|
|
|
|
>,
|
|
|
|
staked_nodes_once: Once,
|
|
|
|
}
|
|
|
|
|
2020-11-30 09:18:33 -08:00
|
|
|
impl VoteAccount {
|
|
|
|
pub fn lamports(&self) -> u64 {
|
|
|
|
self.account.lamports
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn vote_state(&self) -> RwLockReadGuard<Result<VoteState, InstructionError>> {
|
|
|
|
self.vote_state_once.call_once(|| {
|
|
|
|
*self.vote_state.write().unwrap() = VoteState::deserialize(&self.account.data);
|
|
|
|
});
|
|
|
|
self.vote_state.read().unwrap()
|
|
|
|
}
|
2020-12-17 13:22:50 -08:00
|
|
|
|
|
|
|
/// VoteState.node_pubkey of this vote-account.
|
|
|
|
fn node_pubkey(&self) -> Option<Pubkey> {
|
|
|
|
Some(self.vote_state().as_ref().ok()?.node_pubkey)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl VoteAccounts {
|
|
|
|
pub fn staked_nodes(&self) -> HashMap<Pubkey, u64> {
|
|
|
|
self.staked_nodes_once.call_once(|| {
|
|
|
|
let mut staked_nodes = HashMap::new();
|
|
|
|
for (stake, vote_account) in
|
|
|
|
self.vote_accounts.values().filter(|(stake, _)| *stake != 0)
|
|
|
|
{
|
|
|
|
if let Some(node_pubkey) = vote_account.node_pubkey() {
|
|
|
|
staked_nodes
|
|
|
|
.entry(node_pubkey)
|
|
|
|
.and_modify(|s| *s += *stake)
|
|
|
|
.or_insert(*stake);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*self.staked_nodes.write().unwrap() = staked_nodes
|
|
|
|
});
|
|
|
|
self.staked_nodes.read().unwrap().clone()
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn iter(&self) -> impl Iterator<Item = (&Pubkey, &(u64, ArcVoteAccount))> {
|
|
|
|
self.vote_accounts.iter()
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn insert(&mut self, pubkey: Pubkey, (stake, vote_account): (u64, ArcVoteAccount)) {
|
|
|
|
self.add_node_stake(stake, &vote_account);
|
|
|
|
if let Some((stake, vote_account)) =
|
|
|
|
self.vote_accounts.insert(pubkey, (stake, vote_account))
|
|
|
|
{
|
|
|
|
self.sub_node_stake(stake, &vote_account);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn remove(&mut self, pubkey: &Pubkey) -> Option<(u64, ArcVoteAccount)> {
|
|
|
|
let value = self.vote_accounts.remove(pubkey);
|
|
|
|
if let Some((stake, ref vote_account)) = value {
|
|
|
|
self.sub_node_stake(stake, vote_account);
|
|
|
|
}
|
|
|
|
value
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn add_stake(&mut self, pubkey: &Pubkey, delta: u64) {
|
|
|
|
if let Some((stake, vote_account)) = self.vote_accounts.get_mut(pubkey) {
|
|
|
|
*stake += delta;
|
|
|
|
let vote_account = vote_account.clone();
|
|
|
|
self.add_node_stake(delta, &vote_account);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn sub_stake(&mut self, pubkey: &Pubkey, delta: u64) {
|
|
|
|
if let Some((stake, vote_account)) = self.vote_accounts.get_mut(pubkey) {
|
|
|
|
*stake = stake
|
|
|
|
.checked_sub(delta)
|
|
|
|
.expect("subtraction value exceeds account's stake");
|
|
|
|
let vote_account = vote_account.clone();
|
|
|
|
self.sub_node_stake(delta, &vote_account);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn add_node_stake(&mut self, stake: u64, vote_account: &ArcVoteAccount) {
|
|
|
|
if stake != 0 && self.staked_nodes_once.is_completed() {
|
|
|
|
if let Some(node_pubkey) = vote_account.node_pubkey() {
|
|
|
|
self.staked_nodes
|
|
|
|
.write()
|
|
|
|
.unwrap()
|
|
|
|
.entry(node_pubkey)
|
|
|
|
.and_modify(|s| *s += stake)
|
|
|
|
.or_insert(stake);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn sub_node_stake(&mut self, stake: u64, vote_account: &ArcVoteAccount) {
|
|
|
|
if stake != 0 && self.staked_nodes_once.is_completed() {
|
|
|
|
if let Some(node_pubkey) = vote_account.node_pubkey() {
|
|
|
|
match self.staked_nodes.write().unwrap().entry(node_pubkey) {
|
|
|
|
Entry::Vacant(_) => panic!("this should not happen!"),
|
|
|
|
Entry::Occupied(mut entry) => match entry.get().cmp(&stake) {
|
|
|
|
Ordering::Less => panic!("subtraction value exceeds node's stake"),
|
|
|
|
Ordering::Equal => {
|
|
|
|
entry.remove_entry();
|
|
|
|
}
|
|
|
|
Ordering::Greater => *entry.get_mut() -= stake,
|
|
|
|
},
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2020-11-30 09:18:33 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
impl Deref for ArcVoteAccount {
|
|
|
|
type Target = VoteAccount;
|
|
|
|
|
|
|
|
fn deref(&self) -> &Self::Target {
|
|
|
|
self.0.deref()
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Serialize for ArcVoteAccount {
|
|
|
|
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
|
|
|
|
where
|
|
|
|
S: Serializer,
|
|
|
|
{
|
|
|
|
self.account.serialize(serializer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<'de> Deserialize<'de> for ArcVoteAccount {
|
|
|
|
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
|
|
|
where
|
|
|
|
D: Deserializer<'de>,
|
|
|
|
{
|
|
|
|
let account = Account::deserialize(deserializer)?;
|
|
|
|
Ok(Self::from(account))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl From<Account> for ArcVoteAccount {
|
|
|
|
fn from(account: Account) -> Self {
|
|
|
|
Self(Arc::new(VoteAccount::from(account)))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl From<Account> for VoteAccount {
|
|
|
|
fn from(account: Account) -> Self {
|
|
|
|
Self {
|
|
|
|
account,
|
|
|
|
vote_state: RwLock::new(INVALID_VOTE_STATE),
|
|
|
|
vote_state_once: Once::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for VoteAccount {
|
|
|
|
fn default() -> Self {
|
|
|
|
Self {
|
|
|
|
account: Account::default(),
|
|
|
|
vote_state: RwLock::new(INVALID_VOTE_STATE),
|
|
|
|
vote_state_once: Once::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl PartialEq<VoteAccount> for VoteAccount {
|
|
|
|
fn eq(&self, other: &Self) -> bool {
|
|
|
|
self.account == other.account
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-12-17 13:22:50 -08:00
|
|
|
impl Default for VoteAccounts {
|
|
|
|
fn default() -> Self {
|
|
|
|
Self {
|
|
|
|
vote_accounts: HashMap::default(),
|
|
|
|
staked_nodes: RwLock::default(),
|
|
|
|
staked_nodes_once: Once::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Clone for VoteAccounts {
|
|
|
|
fn clone(&self) -> Self {
|
|
|
|
if self.staked_nodes_once.is_completed() {
|
|
|
|
let staked_nodes = self.staked_nodes.read().unwrap().clone();
|
|
|
|
let other = Self {
|
|
|
|
vote_accounts: self.vote_accounts.clone(),
|
|
|
|
staked_nodes: RwLock::new(staked_nodes),
|
|
|
|
staked_nodes_once: Once::new(),
|
|
|
|
};
|
|
|
|
other.staked_nodes_once.call_once(|| {});
|
|
|
|
other
|
|
|
|
} else {
|
|
|
|
Self {
|
|
|
|
vote_accounts: self.vote_accounts.clone(),
|
|
|
|
staked_nodes: RwLock::default(),
|
|
|
|
staked_nodes_once: Once::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl PartialEq<VoteAccounts> for VoteAccounts {
|
|
|
|
fn eq(&self, other: &Self) -> bool {
|
|
|
|
self.vote_accounts == other.vote_accounts
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
type VoteAccountsHashMap = HashMap<Pubkey, (u64 /*stake*/, ArcVoteAccount)>;
|
|
|
|
|
|
|
|
impl From<VoteAccountsHashMap> for VoteAccounts {
|
|
|
|
fn from(vote_accounts: VoteAccountsHashMap) -> Self {
|
|
|
|
Self {
|
|
|
|
vote_accounts,
|
|
|
|
staked_nodes: RwLock::default(),
|
|
|
|
staked_nodes_once: Once::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Borrow<VoteAccountsHashMap> for VoteAccounts {
|
|
|
|
fn borrow(&self) -> &VoteAccountsHashMap {
|
|
|
|
&self.vote_accounts
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl FromIterator<(Pubkey, (u64 /*stake*/, ArcVoteAccount))> for VoteAccounts {
|
|
|
|
fn from_iter<I>(iter: I) -> Self
|
|
|
|
where
|
|
|
|
I: IntoIterator<Item = (Pubkey, (u64, ArcVoteAccount))>,
|
|
|
|
{
|
|
|
|
Self::from(HashMap::from_iter(iter))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Serialize for VoteAccounts {
|
|
|
|
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
|
|
|
|
where
|
|
|
|
S: Serializer,
|
|
|
|
{
|
|
|
|
self.vote_accounts.serialize(serializer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<'de> Deserialize<'de> for VoteAccounts {
|
|
|
|
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
|
|
|
where
|
|
|
|
D: Deserializer<'de>,
|
|
|
|
{
|
|
|
|
let vote_accounts = VoteAccountsHashMap::deserialize(deserializer)?;
|
|
|
|
Ok(Self::from(vote_accounts))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-11-30 09:18:33 -08:00
|
|
|
#[cfg(test)]
|
|
|
|
mod tests {
|
|
|
|
use super::*;
|
2020-12-17 13:22:50 -08:00
|
|
|
use bincode::Options;
|
2020-11-30 09:18:33 -08:00
|
|
|
use rand::Rng;
|
|
|
|
use solana_sdk::{pubkey::Pubkey, sysvar::clock::Clock};
|
|
|
|
use solana_vote_program::vote_state::{VoteInit, VoteStateVersions};
|
2020-12-17 13:22:50 -08:00
|
|
|
use std::iter::repeat_with;
|
2020-11-30 09:18:33 -08:00
|
|
|
|
2020-12-17 13:22:50 -08:00
|
|
|
fn new_rand_vote_account<R: Rng>(
|
|
|
|
rng: &mut R,
|
|
|
|
node_pubkey: Option<Pubkey>,
|
|
|
|
) -> (Account, VoteState) {
|
2020-11-30 09:18:33 -08:00
|
|
|
let vote_init = VoteInit {
|
2020-12-17 13:22:50 -08:00
|
|
|
node_pubkey: node_pubkey.unwrap_or_else(Pubkey::new_unique),
|
2020-11-30 09:18:33 -08:00
|
|
|
authorized_voter: Pubkey::new_unique(),
|
|
|
|
authorized_withdrawer: Pubkey::new_unique(),
|
|
|
|
commission: rng.gen(),
|
|
|
|
};
|
|
|
|
let clock = Clock {
|
|
|
|
slot: rng.gen(),
|
|
|
|
epoch_start_timestamp: rng.gen(),
|
|
|
|
epoch: rng.gen(),
|
|
|
|
leader_schedule_epoch: rng.gen(),
|
|
|
|
unix_timestamp: rng.gen(),
|
|
|
|
};
|
|
|
|
let vote_state = VoteState::new(&vote_init, &clock);
|
|
|
|
let account = Account::new_data(
|
|
|
|
rng.gen(), // lamports
|
|
|
|
&VoteStateVersions::Current(Box::new(vote_state.clone())),
|
|
|
|
&Pubkey::new_unique(), // owner
|
|
|
|
)
|
|
|
|
.unwrap();
|
|
|
|
(account, vote_state)
|
|
|
|
}
|
|
|
|
|
2020-12-17 13:22:50 -08:00
|
|
|
fn new_rand_vote_accounts<R: Rng>(
|
|
|
|
rng: &mut R,
|
|
|
|
num_nodes: usize,
|
|
|
|
) -> impl Iterator<Item = (Pubkey, (u64 /*stake*/, ArcVoteAccount))> + '_ {
|
|
|
|
let nodes: Vec<_> = repeat_with(Pubkey::new_unique).take(num_nodes).collect();
|
|
|
|
repeat_with(move || {
|
|
|
|
let node = nodes[rng.gen_range(0, nodes.len())];
|
|
|
|
let (account, _) = new_rand_vote_account(rng, Some(node));
|
|
|
|
let stake = rng.gen_range(0, 997);
|
|
|
|
(Pubkey::new_unique(), (stake, ArcVoteAccount::from(account)))
|
|
|
|
})
|
|
|
|
}
|
|
|
|
|
|
|
|
fn staked_nodes<'a, I>(vote_accounts: I) -> HashMap<Pubkey, u64>
|
|
|
|
where
|
|
|
|
I: IntoIterator<Item = &'a (Pubkey, (u64, ArcVoteAccount))>,
|
|
|
|
{
|
|
|
|
let mut staked_nodes = HashMap::new();
|
|
|
|
for (_, (stake, vote_account)) in vote_accounts
|
|
|
|
.into_iter()
|
|
|
|
.filter(|(_, (stake, _))| *stake != 0)
|
|
|
|
{
|
|
|
|
if let Some(node_pubkey) = vote_account.node_pubkey() {
|
|
|
|
staked_nodes
|
|
|
|
.entry(node_pubkey)
|
|
|
|
.and_modify(|s| *s += *stake)
|
|
|
|
.or_insert(*stake);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
staked_nodes
|
|
|
|
}
|
|
|
|
|
2020-11-30 09:18:33 -08:00
|
|
|
#[test]
|
|
|
|
fn test_vote_account() {
|
|
|
|
let mut rng = rand::thread_rng();
|
2020-12-17 13:22:50 -08:00
|
|
|
let (account, vote_state) = new_rand_vote_account(&mut rng, None);
|
2020-11-30 09:18:33 -08:00
|
|
|
let lamports = account.lamports;
|
|
|
|
let vote_account = ArcVoteAccount::from(account);
|
|
|
|
assert_eq!(lamports, vote_account.lamports());
|
|
|
|
assert_eq!(vote_state, *vote_account.vote_state().as_ref().unwrap());
|
|
|
|
// 2nd call to .vote_state() should return the cached value.
|
|
|
|
assert_eq!(vote_state, *vote_account.vote_state().as_ref().unwrap());
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_vote_account_serialize() {
|
|
|
|
let mut rng = rand::thread_rng();
|
2020-12-17 13:22:50 -08:00
|
|
|
let (account, vote_state) = new_rand_vote_account(&mut rng, None);
|
2020-11-30 09:18:33 -08:00
|
|
|
let vote_account = ArcVoteAccount::from(account.clone());
|
|
|
|
assert_eq!(vote_state, *vote_account.vote_state().as_ref().unwrap());
|
|
|
|
// Assert than ArcVoteAccount has the same wire format as Account.
|
|
|
|
assert_eq!(
|
|
|
|
bincode::serialize(&account).unwrap(),
|
|
|
|
bincode::serialize(&vote_account).unwrap()
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_vote_account_deserialize() {
|
|
|
|
let mut rng = rand::thread_rng();
|
2020-12-17 13:22:50 -08:00
|
|
|
let (account, vote_state) = new_rand_vote_account(&mut rng, None);
|
2020-11-30 09:18:33 -08:00
|
|
|
let data = bincode::serialize(&account).unwrap();
|
|
|
|
let vote_account = ArcVoteAccount::from(account);
|
|
|
|
assert_eq!(vote_state, *vote_account.vote_state().as_ref().unwrap());
|
|
|
|
let other_vote_account: ArcVoteAccount = bincode::deserialize(&data).unwrap();
|
|
|
|
assert_eq!(vote_account, other_vote_account);
|
|
|
|
assert_eq!(
|
|
|
|
vote_state,
|
|
|
|
*other_vote_account.vote_state().as_ref().unwrap()
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_vote_account_round_trip() {
|
|
|
|
let mut rng = rand::thread_rng();
|
2020-12-17 13:22:50 -08:00
|
|
|
let (account, vote_state) = new_rand_vote_account(&mut rng, None);
|
2020-11-30 09:18:33 -08:00
|
|
|
let vote_account = ArcVoteAccount::from(account);
|
|
|
|
assert_eq!(vote_state, *vote_account.vote_state().as_ref().unwrap());
|
|
|
|
let data = bincode::serialize(&vote_account).unwrap();
|
|
|
|
let other_vote_account: ArcVoteAccount = bincode::deserialize(&data).unwrap();
|
|
|
|
// Assert that serialize->deserialized returns the same ArcVoteAccount.
|
|
|
|
assert_eq!(vote_account, other_vote_account);
|
|
|
|
assert_eq!(
|
|
|
|
vote_state,
|
|
|
|
*other_vote_account.vote_state().as_ref().unwrap()
|
|
|
|
);
|
|
|
|
}
|
2020-12-17 13:22:50 -08:00
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_vote_accounts_serialize() {
|
|
|
|
let mut rng = rand::thread_rng();
|
|
|
|
let vote_accounts_hash_map: HashMap<Pubkey, (u64, ArcVoteAccount)> =
|
|
|
|
new_rand_vote_accounts(&mut rng, 64).take(1024).collect();
|
|
|
|
let vote_accounts = VoteAccounts::from(vote_accounts_hash_map.clone());
|
|
|
|
assert!(vote_accounts.staked_nodes().len() > 32);
|
|
|
|
assert_eq!(
|
|
|
|
bincode::serialize(&vote_accounts).unwrap(),
|
|
|
|
bincode::serialize(&vote_accounts_hash_map).unwrap(),
|
|
|
|
);
|
|
|
|
assert_eq!(
|
|
|
|
bincode::options().serialize(&vote_accounts).unwrap(),
|
|
|
|
bincode::options()
|
|
|
|
.serialize(&vote_accounts_hash_map)
|
|
|
|
.unwrap(),
|
|
|
|
)
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_vote_accounts_deserialize() {
|
|
|
|
let mut rng = rand::thread_rng();
|
|
|
|
let vote_accounts_hash_map: HashMap<Pubkey, (u64, ArcVoteAccount)> =
|
|
|
|
new_rand_vote_accounts(&mut rng, 64).take(1024).collect();
|
|
|
|
let data = bincode::serialize(&vote_accounts_hash_map).unwrap();
|
|
|
|
let vote_accounts: VoteAccounts = bincode::deserialize(&data).unwrap();
|
|
|
|
assert!(vote_accounts.staked_nodes().len() > 32);
|
|
|
|
assert_eq!(vote_accounts.vote_accounts, vote_accounts_hash_map);
|
|
|
|
let data = bincode::options()
|
|
|
|
.serialize(&vote_accounts_hash_map)
|
|
|
|
.unwrap();
|
|
|
|
let vote_accounts: VoteAccounts = bincode::options().deserialize(&data).unwrap();
|
|
|
|
assert_eq!(vote_accounts.vote_accounts, vote_accounts_hash_map);
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_staked_nodes() {
|
|
|
|
let mut rng = rand::thread_rng();
|
|
|
|
let mut accounts: Vec<_> = new_rand_vote_accounts(&mut rng, 64).take(1024).collect();
|
|
|
|
let mut vote_accounts = VoteAccounts::default();
|
|
|
|
// Add vote accounts.
|
|
|
|
for (k, (pubkey, (stake, vote_account))) in accounts.iter().enumerate() {
|
|
|
|
vote_accounts.insert(*pubkey, (*stake, vote_account.clone()));
|
|
|
|
if (k + 1) % 128 == 0 {
|
|
|
|
assert_eq!(
|
|
|
|
staked_nodes(&accounts[..k + 1]),
|
|
|
|
vote_accounts.staked_nodes()
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Remove some of the vote accounts.
|
|
|
|
for k in 0..256 {
|
|
|
|
let index = rng.gen_range(0, accounts.len());
|
|
|
|
let (pubkey, (_, _)) = accounts.swap_remove(index);
|
|
|
|
vote_accounts.remove(&pubkey);
|
|
|
|
if (k + 1) % 32 == 0 {
|
|
|
|
assert_eq!(staked_nodes(&accounts), vote_accounts.staked_nodes());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Modify the stakes for some of the accounts.
|
|
|
|
for k in 0..2048 {
|
|
|
|
let index = rng.gen_range(0, accounts.len());
|
|
|
|
let (pubkey, (stake, _)) = &mut accounts[index];
|
|
|
|
let new_stake = rng.gen_range(0, 997);
|
|
|
|
if new_stake < *stake {
|
|
|
|
vote_accounts.sub_stake(pubkey, *stake - new_stake);
|
|
|
|
} else {
|
|
|
|
vote_accounts.add_stake(pubkey, new_stake - *stake);
|
|
|
|
}
|
|
|
|
*stake = new_stake;
|
|
|
|
if (k + 1) % 128 == 0 {
|
|
|
|
assert_eq!(staked_nodes(&accounts), vote_accounts.staked_nodes());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Remove everything.
|
|
|
|
while !accounts.is_empty() {
|
|
|
|
let index = rng.gen_range(0, accounts.len());
|
|
|
|
let (pubkey, (_, _)) = accounts.swap_remove(index);
|
|
|
|
vote_accounts.remove(&pubkey);
|
|
|
|
if accounts.len() % 32 == 0 {
|
|
|
|
assert_eq!(staked_nodes(&accounts), vote_accounts.staked_nodes());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
assert!(vote_accounts.staked_nodes.read().unwrap().is_empty());
|
|
|
|
}
|
2020-11-30 09:18:33 -08:00
|
|
|
}
|