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Use iterator to return padding data. (#197)

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* Use iterator to return padding data.

* Fix order.
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peilun-conflux 2024-09-13 07:38:47 +08:00 committed by GitHub
parent a4dd88f2b8
commit 5c81abb79f
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1 changed files with 5 additions and 5 deletions
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10
node/storage/src/log_store/log_manager.rs
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@ -989,16 +989,16 @@ impl LogManager {
}
// FIXME(zz): Implement padding.
pub fn padding(len: usize) -> Vec<Vec<u8>> {
pub fn padding(len: usize) -> Box<dyn Iterator<Item = Vec<u8>>> {
let remainder = len % PAD_MAX_SIZE;
let n = len / PAD_MAX_SIZE;
let mut pad_data = vec![Self::padding_raw(PAD_MAX_SIZE); n];
let iter = (0..n).map(|_| Self::padding_raw(PAD_MAX_SIZE));
if remainder == 0 {
pad_data
Box::new(iter)
} else {
// insert the remainder to the front, so the rest are processed with alignment.
pad_data.insert(0, Self::padding_raw(remainder));
pad_data
let new_iter = vec![Self::padding_raw(remainder)].into_iter().chain(iter);
Box::new(new_iter)
}
}