A crate allowing for repeated retry of a function until it either
reports success, fails with an error, or times out.
| wait_for | Wait until an operation yields a result or a timeout is reached,
polling every interval.
On success the function returns Ok(Some(T)). When timeout is
exceeded without a result being produced the return value is
Ok(None). Errors reported by the operation in question result in
early return with Err(E).
|
| wait_until | Wait until an operation yields a result or a deadline is reached,
polling every interval.
On success the function returns Ok(Some(T)). When deadline is
reached without a result being produced the return value is
Ok(None). Errors reported by the operation in question result in
early return with Err(E).
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