// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license. pub fn create_basic_runtime() -> tokio::runtime::Runtime { tokio::runtime::Builder::new_current_thread() .enable_io() .enable_time() // This limits the number of threads for blocking operations (like for // synchronous fs ops) or CPU bound tasks like when we run dprint in // parallel for deno fmt. // The default value is 512, which is an unhelpfully large thread pool. We // don't ever want to have more than a couple dozen threads. .max_blocking_threads(32) .build() .unwrap() } pub fn run_local<F, R>(future: F) -> R where F: std::future::Future<Output = R>, { let rt = create_basic_runtime(); let local = tokio::task::LocalSet::new(); local.block_on(&rt, future) }