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Calculate original capacity only if necessary #666

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merged 1 commit into from
Feb 6, 2024
+3 −6
Merged

Calculate original capacity only if necessary #666

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9 changes: 3 additions & 6 deletions src/bytes_mut.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -652,13 +652,7 @@ impl BytesMut {
// Compute the new capacity
let mut new_cap = len.checked_add(additional).expect("overflow");

let original_capacity;
let original_capacity_repr;

unsafe {
original_capacity_repr = (*shared).original_capacity_repr;
original_capacity = original_capacity_from_repr(original_capacity_repr);

// First, try to reclaim the buffer. This is possible if the current
// handle is the only outstanding handle pointing to the buffer.
if (*shared).is_unique() {
Expand Down Expand Up @@ -729,6 +723,9 @@ impl BytesMut {
}
}

let original_capacity_repr = unsafe { (*shared).original_capacity_repr };
let original_capacity = original_capacity_from_repr(original_capacity_repr);

new_cap = cmp::max(new_cap, original_capacity);

// Create a new vector to store the data
Expand Down
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