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//@ run-pass
//@ needs-threads
//@ compile-flags: -Copt-level=0
// The channel's `Block::new` was causing a stack overflow because it held 32 item slots, which is
// 1MiB for this test's `BigStruct` -- instantiated on the stack before moving to `Box::new`.
//
// That block is now initialized directly on the heap.
//
// Ref: https://github.com/rust-lang/rust/issues/102246
use std::sync::mpsc::channel;
use std::thread;
const N: usize = 32_768;
struct BigStruct {
_data: [u8; N],
}
fn main() {
let (sender, receiver) = channel::<BigStruct>();
let thread1 = thread::spawn(move || {
sender.send(BigStruct { _data: [0u8; N] }).unwrap();
});
thread1.join().unwrap();
for _data in receiver.try_iter() {}
}
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