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Updates static assert of cache hash data Header size #2039

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Jul 8, 2024
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Updates static assert of cache hash data Header size #2039

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6 changes: 4 additions & 2 deletions accounts-db/src/cache_hash_data.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,9 +31,11 @@ pub struct Header {
// In order to safely guarantee Header is Pod, it cannot have any padding
// This is obvious by inspection, but this will also catch any inadvertent
// changes in the future (i.e. it is a test).
// Additionally, we compare the header size with `u64` instead of `usize`
// to ensure binary compatibility doesn't break.
const _: () = assert!(
std::mem::size_of::<Header>() == std::mem::size_of::<usize>(),
"Header cannot have any padding"
std::mem::size_of::<Header>() == std::mem::size_of::<u64>(),
"Header cannot have any padding and must be the same size as u64",
);

/// cache hash data file to be mmapped later
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