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aa978addb3
Use u32 instead of i32 for futexes. This changes futexes from i32 to u32. The [Linux man page](https://man7.org/linux/man-pages/man2/futex.2.html) uses `uint32_t` for them, so I'm not sure why I used i32 for them. Maybe because I first used them for thread parkers, where I used -1, 0, and 1 as the states. (Wasm's `memory.atomic.wait32` does use `i32`, because wasm doesn't support `u32`.) It doesn't matter much, but using the unsigned type probably results in fewer surprises when shifting bits around or using comparison operators. r? ```@Amanieu``` |
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