impl Sync for OwnedBinary?

[JayKickliter]

I have the need to share owned binaries across threads via RwLock. My hunch is that it's safe to implement Sync for OwnedBinary, but I haven't looked at these guts in quite some time.

[filmor]

OwnedBinary is effectively a mutable buffer without internal synchronisation, how could it be Sync?

[JayKickliter]

For the same reason Vec<u8> is Sync despite it being a mutable buffer without internal synchronization: ownership rules will prevent mutating the OwnedBinary when it is shared.

[filmor]

True, I checked again, as to be expected it doesn't have any interior mutability (wasn't completely sure about the realloc).