rust/tests/fail/data_race/stack_pop_race.rs
2022-07-11 11:48:56 +00:00

26 lines
854 B
Rust

//@ignore-windows: Concurrency on Windows is not supported yet.
//@compile-flags: -Zmiri-preemption-rate=0
use std::thread;
#[derive(Copy, Clone)]
struct MakeSend(*const i32);
unsafe impl Send for MakeSend {}
fn main() {
race(0);
}
// Using an argument for the ptr to point to, since those do not get StorageDead.
fn race(local: i32) {
let ptr = MakeSend(&local as *const i32);
thread::spawn(move || {
let ptr = ptr;
let _val = unsafe { *ptr.0 };
});
// Make the other thread go first so that it does not UAF.
thread::yield_now();
// Deallocating the local (when `main` returns)
// races with the read in the other thread.
// Make sure the error points at this function's end, not just the call site.
} //~ERROR: Data race detected between Deallocate on thread `main` and Read on thread `<unnamed>`