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runtime: make the enter example deterministic (#6351)

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M.Amin Rayej 2024-03-10 14:07:18 +03:30 committed by GitHub
parent 1f924f95f1
commit 3133af42e1
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1 changed files with 7 additions and 3 deletions
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10
tokio/src/runtime/runtime.rs
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@ -368,12 +368,13 @@ impl Runtime {
///
/// ```
/// use tokio::runtime::Runtime;
/// use tokio::task::JoinHandle;
///
/// fn function_that_spawns(msg: String) {
/// fn function_that_spawns(msg: String) -> JoinHandle<()> {
/// // Had we not used `rt.enter` below, this would panic.
/// tokio::spawn(async move {
/// println!("{}", msg);
/// });
/// })
/// }
///
/// fn main() {
@ -383,7 +384,10 @@ impl Runtime {
///
/// // By entering the context, we tie `tokio::spawn` to this executor.
/// let _guard = rt.enter();
/// function_that_spawns(s);
/// let handle = function_that_spawns(s);
///
/// // Wait for the task before we end the test.
/// rt.block_on(handle).unwrap();
/// }
/// ```
pub fn enter(&self) -> EnterGuard<'_> {