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Add TSAN support #541

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Merged
merged 4 commits into from
Apr 15, 2022
Merged

Add TSAN support #541

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db46e3b
Add TSAN support
Darksonn Mar 29, 2022
017b8a7
Try using AcqRel for fetch_sub
Darksonn Mar 31, 2022
876ca1d
Always use load rather than fence
Darksonn Apr 3, 2022
007fb7d
Remove #[allow(unused_imports)]
Darksonn Apr 3, 2022
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6 changes: 6 additions & 0 deletions src/bytes.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1082,8 +1082,14 @@ unsafe fn release_shared(ptr: *mut Shared) {
// > "acquire" operation before deleting the object.
//
// [1]: (www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html)
#[cfg(not(thread = "sanitize"))]
atomic::fence(Ordering::Acquire);

// Thread sanitizer does not support atomic fences. Use an atomic load
// instead.
#[cfg(thread = "sanitize")]
(*ptr).ref_count.load(Ordering::Acquire);

// Drop the data
Box::from_raw(ptr);
}
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6 changes: 6 additions & 0 deletions src/bytes_mut.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1287,8 +1287,14 @@ unsafe fn release_shared(ptr: *mut Shared) {
// > "acquire" operation before deleting the object.
//
// [1]: (www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html)
#[cfg(not(thread = "sanitize"))]
atomic::fence(Ordering::Acquire);

// Thread sanitizer does not support atomic fences. Use an atomic load
// instead.
#[cfg(thread = "sanitize")]
(*ptr).ref_count.load(Ordering::Acquire);

// Drop the data
Box::from_raw(ptr);
}
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