Trait ExitHandler 

pub trait ExitHandler: Send + 'static {
    // Provided method
    fn on_exit(&mut self) -> bool { ... }
}

Optional hook for agent cleanup on exit.

Implement this trait to run cleanup code before the application exits. This is useful for saving session state, closing connections, or other cleanup tasks.

Example

struct SaveOnExitHandler {
    session_file: PathBuf,
}

impl ExitHandler for SaveOnExitHandler {
    fn on_exit(&mut self) -> bool {
        // Save session state
        self.save_session();
        true // proceed with exit
    }
}

Provided Methods

fn on_exit(&mut self) -> bool

Called when exit is confirmed.

Return true to proceed with exit, or false to cancel the exit. This allows handlers to veto the exit if needed (e.g., unsaved changes).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors