Function set_fallback_runtime 

pub fn set_fallback_runtime(
    configure: impl FnOnce(&mut Builder),
) -> Result<(), SetFallbackRuntimeError>

Configures the runtime that Compat uses when it is polled outside a tokio context.

The runtime is built right away with the default’s scheduler (current-thread, or multi-threaded with the multi-thread feature) and enable_all(), then configure applies. Call it before anything falls back; it is process-wide, so only applications should call it.

Errors

Fails if a fallback runtime already exists, or if the runtime or the thread that drives a current-thread one cannot be created; the default runtime is used then.

Examples

async_compat::set_fallback_runtime(|builder| {
    builder.worker_threads(2).thread_name("my-app-tokio");
})
.unwrap();