75fa9f6dec
This commit is extracted from #122036 and adds a new directive to the `compiletest` test runner, `//@ needs-threads`. This is intended to capture the need that a target must implement threading to execute a specific test, typically one that uses `std::thread`. This is primarily done for WebAssembly targets which currently do not have threads by default. This enables transitioning a lot of `//@ ignore-wasm*`-style ignores into a more self-documenting `//@ needs-threads` directive. Additionally the `wasm32-wasi-preview1-threads` target, for example, does actually have threads, but isn't tested in CI at this time. This change enables running these tests for that target, but not other wasm targets.
33 lines
796 B
Rust
33 lines
796 B
Rust
//@ run-pass
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//@ needs-threads
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//@ ignore-sgx no processes
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use std::thread;
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use std::env;
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use std::process::Command;
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struct Handle(i32);
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impl Drop for Handle {
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fn drop(&mut self) { panic!(); }
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}
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thread_local!(static HANDLE: Handle = Handle(0));
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fn main() {
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let args = env::args().collect::<Vec<_>>();
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if args.len() == 1 {
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let out = Command::new(&args[0]).arg("test").output().unwrap();
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let stderr = std::str::from_utf8(&out.stderr).unwrap();
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assert!(stderr.contains("explicit panic"),
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"bad failure message:\n{}\n", stderr);
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} else {
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// TLS dtors are not always run on process exit
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thread::spawn(|| {
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HANDLE.with(|h| {
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println!("{}", h.0);
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});
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}).join().unwrap();
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}
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}
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