async-std/src/rt/mod.rs

//! The runtime.

use std::env;

use once_cell::sync::Lazy;

/// Dummy runtime struct.
pub struct Runtime {}

/// The global runtime.
pub static RUNTIME: Lazy<Runtime> = Lazy::new(|| {
    // Create an executor thread pool.

    let thread_name = env::var("ASYNC_STD_THREAD_NAME").unwrap_or_else(|_| "async-std/runtime".to_string());
    async_global_executor::init_with_config(
        async_global_executor::GlobalExecutorConfig::default()
            .with_env_var("ASYNC_STD_THREAD_COUNT")
            .with_thread_name_fn(
                move || thread_name.clone()
            )
    );

    Runtime {}
});