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fix(ext/runtime): rollback memory count #645 #646

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Merged
merged 1 commit into from
Nov 27, 2025
Merged

fix(ext/runtime): rollback memory count #645 #646

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5 changes: 5 additions & 0 deletions ext/runtime/external_memory.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,7 @@ unsafe extern "C" fn allocate(
let count_loaded = allocator.count.load(Ordering::SeqCst);

if count_loaded > allocator.max {
allocator.count.fetch_sub(n, Ordering::SeqCst);
return std::ptr::null::<*mut [u8]>() as *mut c_void;
}

Expand All @@ -78,6 +79,7 @@ unsafe extern "C" fn allocate_uninitialized(
let count_loaded = allocator.count.load(Ordering::SeqCst);

if count_loaded > allocator.max {
allocator.count.fetch_sub(n, Ordering::SeqCst);
return std::ptr::null::<*mut [u8]>() as *mut c_void;
}

Expand Down Expand Up @@ -114,6 +116,9 @@ unsafe extern "C" fn reallocate(
let count_loaded = allocator.count.load(Ordering::SeqCst);

if count_loaded > allocator.max {
allocator
.count
.fetch_sub(newlen.wrapping_sub(oldlen), Ordering::SeqCst);
return std::ptr::null::<*mut [u8]>() as *mut c_void;
}

Expand Down