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Maybe I am misunderstanding your needs, but could you not just use a RwLock[0]? For being global you will need to use the lazy_static[1] crate. Admittedly, I have not tried doing this directly though.

[0] https://doc.rust-lang.org/std/sync/struct.RwLock.html [1] https://crates.io/crates/lazy_static

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That's part of the solution I'm working towards.

I'm using 'static references for the map keys, but they're not really 'static, so I use unsafe transmute to create them and I rebuild the map when the memory map changes to a different address.

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