forked from M-Labs/libfringe
46 lines
1.0 KiB
Rust
46 lines
1.0 KiB
Rust
// This file is part of libfringe, a low-level green threading library.
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// Copyright (c) whitequark <whitequark@whitequark.org>
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// See the LICENSE file included in this distribution.
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#![feature(thread_local)]
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extern crate fringe;
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use fringe::Context;
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#[thread_local]
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static mut ctx_slot: *mut Context<fringe::OsStack> = 0 as *mut Context<_>;
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unsafe extern "C" fn do_panic(arg: usize) -> ! {
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match arg {
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0 => panic!("arg=0"),
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1 => {
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Context::swap(ctx_slot, ctx_slot, 0);
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panic!("arg=1");
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}
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_ => unreachable!()
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}
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}
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#[test]
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#[should_panic="arg=0"]
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fn panic_after_start() {
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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, do_panic);
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Context::swap(&mut ctx, &ctx, 0);
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}
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}
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#[test]
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#[should_panic="arg=1"]
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fn panic_after_swap() {
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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, do_panic);
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ctx_slot = &mut ctx;
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Context::swap(&mut ctx, &ctx, 1);
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Context::swap(&mut ctx, &ctx, 0);
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}
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}
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