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fix arithmetic side-effects

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk
2024-07-07 04:46:16 +00:00
parent 52a561ff9e
commit 7397064edd
25 changed files with 139 additions and 114 deletions
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src/service/rooms/state_compressor/data.rs
+6 -5
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@@ -1,6 +1,6 @@
use std::{collections::HashSet, mem::size_of, sync::Arc};
use conduit::{utils, Error, Result};
use conduit::{checked, utils, Error, Result};
use database::{Database, Map};
use super::CompressedStateEvent;
@@ -38,11 +38,12 @@ impl Data {
let mut added = HashSet::new();
let mut removed = HashSet::new();
let mut i = size_of::<u64>();
while let Some(v) = value.get(i..i + 2 * size_of::<u64>()) {
let stride = size_of::<u64>();
let mut i = stride;
while let Some(v) = value.get(i..checked!(i + 2 * stride)?) {
if add_mode && v.starts_with(&0_u64.to_be_bytes()) {
add_mode = false;
i += size_of::<u64>();
i = checked!(i + stride)?;
continue;
}
if add_mode {
@@ -50,7 +51,7 @@ impl Data {
} else {
removed.insert(v.try_into().expect("we checked the size above"));
}
i += 2 * size_of::<u64>();
i = checked!(i + 2 * stride)?;
}
Ok(StateDiff {