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taskdump.rs
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taskdump.rs
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// This example outputs something like:
// ╼ taskdump::foo::{{closure}} at backtrace/examples/taskdump.rs:20:1
// └╼ taskdump::bar::{{closure}} at backtrace/examples/taskdump.rs:25:1
// ├╼ taskdump::buz::{{closure}} at backtrace/examples/taskdump.rs:35:1
// │ └╼ taskdump::baz::{{closure}} at backtrace/examples/taskdump.rs:40:1
// └╼ taskdump::fiz::{{closure}} at backtrace/examples/taskdump.rs:30:1
// ╼ taskdump::pending::{{closure}} at backtrace/examples/taskdump.rs:15:1
#[tokio::main]
async fn main() {
tokio::select! {
_ = tokio::spawn(pending()) => {}
_ = foo() => {}
};
}
#[async_backtrace::framed]
async fn pending() {
std::future::pending::<()>().await
}
#[async_backtrace::framed]
async fn foo() {
bar().await;
}
#[async_backtrace::framed]
async fn bar() {
futures::join!(fiz(), buz());
}
#[async_backtrace::framed]
async fn fiz() {
tokio::task::yield_now().await;
}
#[async_backtrace::framed]
async fn buz() {
println!("{}", baz().await);
}
#[async_backtrace::framed]
async fn baz() -> String {
async_backtrace::taskdump(true)
}