pub fn read<T: Send + Sync + 'static>(
lock: &Arc<RwLock<T>>,
context: &str,
) -> Option<OwnedRwLockReadGuard<T>>Expand description
Acquire a read lock via a non-blocking spin loop with an adaptive timeout.
Unlike the previous Handle::block_on approach, this never parks a blocking
thread waiting for the async runtime to make progress — eliminating the
stall-under-load anti-pattern on Windows (#1018). The loop yields the thread
between attempts so it does not starve other work on the blocking pool.
Returns None on timeout, preserving the historical default behavior.