63 lines
2.0 KiB
Rust
63 lines
2.0 KiB
Rust
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//@ ignore-windows
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// This test attempts to make sure that running `remove_dir_all`
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// doesn't result in a NotFound error one of the files it
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// is deleting is deleted concurrently.
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//
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// The windows implementation for `remove_dir_all` is significantly
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// more complicated, and has not yet been brought up to par with
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// the implementation on other platforms, so this test is marked as
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// `ignore-windows` until someone more expirenced with windows can
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// sort that out.
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use std::fs::remove_dir_all;
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use std::path::Path;
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use std::thread;
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use std::time::Duration;
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use run_make_support::rfs::{create_dir, write};
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use run_make_support::run_in_tmpdir;
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fn main() {
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let mut race_happened = false;
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run_in_tmpdir(|| {
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for i in 0..150 {
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create_dir("outer");
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create_dir("outer/inner");
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write("outer/inner.txt", b"sometext");
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thread::scope(|scope| {
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let t1 = scope.spawn(|| {
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thread::sleep(Duration::from_nanos(i));
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remove_dir_all("outer").unwrap();
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});
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let race_happened_ref = &race_happened;
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let t2 = scope.spawn(|| {
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let r1 = remove_dir_all("outer/inner");
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let r2 = remove_dir_all("outer/inner.txt");
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if r1.is_ok() && r2.is_err() {
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race_happened = true;
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}
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});
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});
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assert!(!Path::new("outer").exists());
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// trying to remove a nonexistant top-level directory should
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// still result in an error.
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let Err(err) = remove_dir_all("outer") else {
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panic!("removing nonexistant dir did not result in an error");
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};
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assert_eq!(err.kind(), std::io::ErrorKind::NotFound);
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}
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});
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if !race_happened {
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eprintln!(
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"WARNING: multithreaded deletion never raced, \
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try increasing the number of attempts or \
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adjusting the sleep timing"
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);
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}
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}
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