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