Function run_blocking 

pub fn run_blocking<B, A>(term: Terminal<B>, app: A) -> Result<(), B::Error>
where
    B: Backend,
    A: App<B>,

Drive an App with a blocking, event-driven loop until it returns Flow::Exit.

Generic over the backend, so it powers every non-inverted backend (Crossterm in retroglyph-crossterm, Headless) with no per-backend loop code. Inverted backends (software/winit) provide their own driver.

The terminal is owned and dropped when the loop exits, so backend teardown (for example crossterm’s terminal restore) runs on the way out.

See App::update for the present/idle contract this and every other driver follows. Equivalent to run_blocking_with(term, app, RunOptions::default()): on Flow::Idle, blocks on input rather than calling update again immediately, so a turn-based app that’s idle most of the time costs approximately nothing. Use run_blocking_with with RunOptions::animated for a continuously-rendering app instead.

Errors

Returns the backend’s error if the automatic present() call fails. The loop stops and the terminal is dropped (running backend teardown) before the error is returned.