Bump MSRV to 1.47, reduce size of sys::Events #40
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taiki-e
commented
Aug 21, 2022
| @@ -221,7 +221,7 @@ impl Events { | |||
| data: 0, | |||
| udata: 0 as _, | |||
| }; | |||
| let list = vec![ev; 1000].into_boxed_slice(); | |||
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I'm not sure why the old code used 1000 instead of 1024.
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It would be a mis-optimization, if I had to guess.
| @@ -289,7 +289,7 @@ impl Events { | |||
| /// Creates an empty list. | |||
| pub fn new() -> Events { | |||
| let ev = libc::epoll_event { events: 0, u64: 0 }; | |||
| let list = vec![ev; 1000].into_boxed_slice(); | |||
| let list = Box::new([ev; 1024]); | |||
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I didn't do it on this patch, but calling alloc_zeroed via unsafe code is probably best from a point of view of performance.
https://godbolt.org/z/T1e8ETv61 https://godbolt.org/z/hcss6hEaT https://godbolt.org/z/fG9ddPsdq
taiki-e
changed the title
zeenix
approved these changes
Aug 21, 2022
Merged
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libcplans to raise their MSRV to 1.47 (rust-lang/libc#2845), and some crates of smol-rs also require 1.47 since async-task 4.3.0 (smol-rs/async-task#30). It seems to be a reasonable time to do #19.This also reduces the size of
sys::Events(closes #19).