allegro_main! - thread '<unknown>' has overflowed its stack

[ccie18473]

Hello Team,

Since I've been using RustAllegro, I never used allegro_main!. Today in order to troubleshoot an issue, I decided to use allegro_main!.

Then I got this:

thread '' has overflowed its stack
fatal runtime error: stack overflow
Aborted (core dumped)

I was able to get an workaround increasing the stack:

const STACK_SIZE: usize = 4 * 1024 * 1024;

allegro_main! {
// Spawn thread with explicit stack size
let child = thread::Builder::new()
.stack_size(STACK_SIZE)
.spawn(run)
.unwrap();

// Wait for thread to join
child.join().unwrap();

}

fn run() {
// game code
}

Nevertheless, I was able to solve my issue and got back using main() again without issues.

My question relates with allegro_main!. What does it do, why do we need it and do we really need to use it.

Thanks.