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Diffstat (limited to 'tokio/src/sync/semaphore.rs')
| -rw-r--r-- | tokio/src/sync/semaphore.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tokio/src/sync/semaphore.rs b/tokio/src/sync/semaphore.rs index e34e49cc..4cce7e8f 100644 --- a/tokio/src/sync/semaphore.rs +++ b/tokio/src/sync/semaphore.rs @@ -39,8 +39,15 @@ pub struct TryAcquireError(()); #[cfg(not(loom))] fn bounds() { fn check_unpin<T: Unpin>() {} + // This has to take a value, since the async fn's return type is unnameable. + fn check_send_sync_val<T: Send + Sync>(_t: T) {} + fn check_send_sync<T: Send + Sync>() {} check_unpin::<Semaphore>(); check_unpin::<SemaphorePermit<'_>>(); + check_send_sync::<Semaphore>(); + + let semaphore = Semaphore::new(0); + check_send_sync_val(semaphore.acquire()); } impl Semaphore { |