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#[allow(deprecated)]
use solana_program::sysvar::recent_blockhashes::{
IntoIterSorted, IterItem, RecentBlockhashes, MAX_ENTRIES,
};
use {
crate::{
account::{
create_account_shared_data_with_fields, to_account, AccountSharedData,
InheritableAccountFields, DUMMY_INHERITABLE_ACCOUNT_FIELDS,
},
clock::INITIAL_RENT_EPOCH,
},
std::{collections::BinaryHeap, iter::FromIterator},
};
#[deprecated(
since = "1.9.0",
note = "Please do not use, will no longer be available in the future"
)]
#[allow(deprecated)]
pub fn update_account<'a, I>(
account: &mut AccountSharedData,
recent_blockhash_iter: I,
) -> Option<()>
where
I: IntoIterator<Item = IterItem<'a>>,
{
let sorted = BinaryHeap::from_iter(recent_blockhash_iter);
#[allow(deprecated)]
let sorted_iter = IntoIterSorted::new(sorted);
#[allow(deprecated)]
let recent_blockhash_iter = sorted_iter.take(MAX_ENTRIES);
#[allow(deprecated)]
let recent_blockhashes: RecentBlockhashes = recent_blockhash_iter.collect();
to_account(&recent_blockhashes, account)
}
#[deprecated(
since = "1.5.17",
note = "Please use `create_account_with_data_for_test` instead"
)]
#[allow(deprecated)]
pub fn create_account_with_data<'a, I>(lamports: u64, recent_blockhash_iter: I) -> AccountSharedData
where
I: IntoIterator<Item = IterItem<'a>>,
{
#[allow(deprecated)]
create_account_with_data_and_fields(recent_blockhash_iter, (lamports, INITIAL_RENT_EPOCH))
}
#[deprecated(
since = "1.9.0",
note = "Please do not use, will no longer be available in the future"
)]
#[allow(deprecated)]
pub fn create_account_with_data_and_fields<'a, I>(
recent_blockhash_iter: I,
fields: InheritableAccountFields,
) -> AccountSharedData
where
I: IntoIterator<Item = IterItem<'a>>,
{
let mut account = create_account_shared_data_with_fields::<RecentBlockhashes>(
&RecentBlockhashes::default(),
fields,
);
update_account(&mut account, recent_blockhash_iter).unwrap();
account
}
#[deprecated(
since = "1.9.0",
note = "Please do not use, will no longer be available in the future"
)]
#[allow(deprecated)]
pub fn create_account_with_data_for_test<'a, I>(recent_blockhash_iter: I) -> AccountSharedData
where
I: IntoIterator<Item = IterItem<'a>>,
{
create_account_with_data_and_fields(recent_blockhash_iter, DUMMY_INHERITABLE_ACCOUNT_FIELDS)
}
#[cfg(test)]
mod tests {
#![allow(deprecated)]
use {
super::*,
crate::account::from_account,
rand::{seq::SliceRandom, thread_rng},
solana_program::{
hash::{Hash, HASH_BYTES},
sysvar::recent_blockhashes::Entry,
},
};
#[test]
fn test_create_account_empty() {
let account = create_account_with_data_for_test(vec![].into_iter());
let recent_blockhashes = from_account::<RecentBlockhashes, _>(&account).unwrap();
assert_eq!(recent_blockhashes, RecentBlockhashes::default());
}
#[test]
fn test_create_account_full() {
let def_hash = Hash::default();
let def_lamports_per_signature = 0;
let account = create_account_with_data_for_test(
vec![IterItem(0u64, &def_hash, def_lamports_per_signature); MAX_ENTRIES].into_iter(),
);
let recent_blockhashes = from_account::<RecentBlockhashes, _>(&account).unwrap();
assert_eq!(recent_blockhashes.len(), MAX_ENTRIES);
}
#[test]
fn test_create_account_truncate() {
let def_hash = Hash::default();
let def_lamports_per_signature = 0;
let account = create_account_with_data_for_test(
vec![IterItem(0u64, &def_hash, def_lamports_per_signature); MAX_ENTRIES + 1]
.into_iter(),
);
let recent_blockhashes = from_account::<RecentBlockhashes, _>(&account).unwrap();
assert_eq!(recent_blockhashes.len(), MAX_ENTRIES);
}
#[test]
fn test_create_account_unsorted() {
let def_lamports_per_signature = 0;
let mut unsorted_blocks: Vec<_> = (0..MAX_ENTRIES)
.map(|i| {
(i as u64, {
let mut h = [0; HASH_BYTES];
h[HASH_BYTES - 1] = i as u8;
Hash::new(&h)
})
})
.collect();
unsorted_blocks.shuffle(&mut thread_rng());
let account = create_account_with_data_for_test(
unsorted_blocks
.iter()
.map(|(i, hash)| IterItem(*i, hash, def_lamports_per_signature)),
);
let recent_blockhashes = from_account::<RecentBlockhashes, _>(&account).unwrap();
let mut unsorted_recent_blockhashes: Vec<_> = unsorted_blocks
.iter()
.map(|(i, hash)| IterItem(*i, hash, def_lamports_per_signature))
.collect();
unsorted_recent_blockhashes.sort();
unsorted_recent_blockhashes.reverse();
let expected_recent_blockhashes: Vec<_> = (unsorted_recent_blockhashes
.into_iter()
.map(|IterItem(_, b, f)| Entry::new(b, f)))
.collect();
assert_eq!(*recent_blockhashes, expected_recent_blockhashes);
}
}