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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/runtime/atomic-print.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/runtime/atomic-print.rs')
-rw-r--r-- | tests/ui/runtime/atomic-print.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/ui/runtime/atomic-print.rs b/tests/ui/runtime/atomic-print.rs new file mode 100644 index 000000000..fe5791053 --- /dev/null +++ b/tests/ui/runtime/atomic-print.rs @@ -0,0 +1,45 @@ +// run-pass + +#![allow(unused_must_use)] +#![allow(deprecated)] +// ignore-emscripten no threads support +// ignore-sgx no processes + +use std::{env, fmt, process, sync, thread}; + +struct SlowFmt(u32); +impl fmt::Debug for SlowFmt { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + thread::sleep_ms(3); + self.0.fmt(f) + } +} + +fn do_print(x: u32) { + let x = SlowFmt(x); + println!("{:?}{:?}{:?}{:?}{:?}", x, x, x, x, x); +} + +fn main(){ + if env::args().count() == 2 { + let barrier = sync::Arc::new(sync::Barrier::new(2)); + let tbarrier = barrier.clone(); + let t = thread::spawn(move || { + tbarrier.wait(); + do_print(1); + }); + barrier.wait(); + do_print(2); + t.join(); + } else { + let this = env::args().next().unwrap(); + let output = process::Command::new(this).arg("-").output().unwrap(); + for line in String::from_utf8(output.stdout).unwrap().lines() { + match line.chars().next().unwrap() { + '1' => assert_eq!(line, "11111"), + '2' => assert_eq!(line, "22222"), + chr => panic!("unexpected character {:?}", chr) + } + } + } +} |