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libfringe/benches/swap.rs

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Rust
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// This file is part of libfringe, a low-level green threading library.
// Copyright (c) edef <edef@edef.eu>
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// See the LICENSE file included in this distribution.
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#![feature(test)]
#![cfg(feature = "os")]
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extern crate test;
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extern crate fringe;
use fringe::Context;
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static mut ctx_slot: *mut Context<'static, fringe::OsStack> = 0 as *mut Context<_>;
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#[bench]
fn swap(b: &mut test::Bencher) {
unsafe {
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let stack = fringe::OsStack::new(4 << 20).unwrap();
let mut ctx = Context::new(stack, move || {
let ctx_ptr = ctx_slot;
loop {
Context::swap(ctx_ptr, ctx_ptr);
}
});
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let ctx_ptr = &mut ctx;
ctx_slot = ctx_ptr;
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Context::swap(ctx_ptr, ctx_ptr);
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b.iter(|| Context::swap(ctx_ptr, ctx_ptr));
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}
}