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donglora/vendor/once_cell/examples/reentrant_init_deadlocks.rs
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swaitsandClaude Opus 4.6 3102fc747a feat: add display UI with splash screen, dashboard, and RSSI sparkline
Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 20:42:54 -06:00

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351 B
Rust

fn main() {
let cell = once_cell::sync::OnceCell::<u32>::new();
cell.get_or_init(|| {
cell.get_or_init(|| 1);
2
});
}
/// Dummy test to make it seem hang when compiled as `--test`
/// See https://github.com/matklad/once_cell/issues/79
#[test]
fn dummy_test() {
std::thread::sleep(std::time::Duration::from_secs(4));
}