rqbit/crates/librqbit/src/spawn_utils.rs
Igor Katson d7a37c1b48
Saving
2023-11-24 18:28:46 +00:00

51 lines
1.3 KiB
Rust

use tracing::{debug, trace, Instrument};
pub fn spawn(
span: tracing::Span,
fut: impl std::future::Future<Output = anyhow::Result<()>> + Send + 'static,
) -> tokio::task::JoinHandle<()> {
let fut = async move {
trace!("started");
match fut.await {
Ok(_) => {
debug!("finished");
}
Err(e) => {
debug!("finished with error: {:#}", e)
}
}
}
.instrument(span.or_current());
tokio::spawn(fut)
}
#[derive(Clone, Copy, Debug)]
pub struct BlockingSpawner {
allow_tokio_block_in_place: bool,
}
impl BlockingSpawner {
pub fn new(allow_tokio_block_in_place: bool) -> Self {
Self {
allow_tokio_block_in_place,
}
}
pub fn spawn_block_in_place<F: FnOnce() -> R, R>(&self, f: F) -> R {
if self.allow_tokio_block_in_place {
return tokio::task::block_in_place(f);
}
f()
}
}
impl Default for BlockingSpawner {
fn default() -> Self {
let allow_block_in_place = match tokio::runtime::Handle::current().runtime_flavor() {
tokio::runtime::RuntimeFlavor::CurrentThread => false,
tokio::runtime::RuntimeFlavor::MultiThread => true,
_ => true,
};
Self::new(allow_block_in_place)
}
}