rust/tests/run-pass/concurrency/tls_lib_drop.rs
2020-04-27 14:26:36 -07:00

34 lines
679 B
Rust

// ignore-windows: Concurrency on Windows is not supported yet.
//! Check that destructors of the library thread locals are executed immediately
//! after a thread terminates.
use std::cell::RefCell;
use std::thread;
struct TestCell {
value: RefCell<u8>,
}
impl Drop for TestCell {
fn drop(&mut self) {
println!("Dropping: {}", self.value.borrow())
}
}
thread_local! {
static A: TestCell = TestCell { value: RefCell::new(0) };
}
fn main() {
thread::spawn(|| {
A.with(|f| {
assert_eq!(*f.value.borrow(), 0);
*f.value.borrow_mut() = 5;
});
})
.join()
.unwrap();
println!("Continue main.")
}