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Implement Sync for ThreadsafeFitsFile #438

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Implement Sync for ThreadsafeFitsFile #438

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2 changes: 2 additions & 0 deletions fitsio/src/threadsafe_fitsfile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,8 @@ pub struct ThreadsafeFitsFile(Arc<Mutex<FitsFile>>);
// Safety: we explicitly wrap the type in an Arc::Mutex which is threadsafe. The Mutex ensures that
// only one thread can be modifying the file at once.
unsafe impl Send for ThreadsafeFitsFile {}
// Safety: the inner Mutex ensures exclusive access when shared across threads via &ThreadsafeFitsFile.
unsafe impl Sync for ThreadsafeFitsFile {}

impl FitsFile {
/**
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