forked from M-Labs/libfringe
43 lines
1.0 KiB
Rust
43 lines
1.0 KiB
Rust
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// This file is part of libfringe, a low-level green threading library.
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// Copyright (c) 2015, Ben Segall <talchas@gmail.com>
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// Copyright (c) 2015, edef <edef@edef.eu>
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// See the LICENSE file included in this distribution.
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#![cfg(target_os = "linux")]
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#![feature(test)]
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#![feature(thread_local)]
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#![feature(asm)]
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extern crate fringe;
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extern crate test;
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use fringe::Context;
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use test::black_box;
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#[thread_local]
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static mut ctx_slot: *mut Context<'static, fringe::OsStack> = 0 as *mut Context<_>;
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const FE_DIVBYZERO: i32 = 0x4;
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extern {
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fn feenableexcept(except: i32) -> i32;
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}
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#[test]
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#[ignore]
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fn fpe() {
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unsafe {
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let stack = fringe::OsStack::new(4 << 20).unwrap();
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let mut ctx = Context::new(stack, move || {
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println!("it's alive!");
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loop {
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println!("{:?}", 1.0/black_box(0.0));
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Context::swap(ctx_slot, ctx_slot);
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}
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});
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ctx_slot = &mut ctx;
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Context::swap(ctx_slot, ctx_slot);
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feenableexcept(FE_DIVBYZERO);
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Context::swap(ctx_slot, ctx_slot);
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}
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}
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