Add functor for timepoint expiration to utils.

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/utils/mod.rs

@@ -39,6 +39,7 @@ pub use self::{
 	time::{
 		exponential_backoff::{continue_exponential_backoff, continue_exponential_backoff_secs},
 		now_millis as millis_since_unix_epoch, timepoint_ago, timepoint_from_now,
+		timepoint_has_passed,
 	},
 };
 

src/core/utils/time.rs

@@ -61,6 +61,14 @@ pub fn parse_duration(duration: &str) -> Result<Duration> {
 		.map_err(|error| err!("'{duration:?}' is not a valid duration string: {error:?}"))
 }
 
+#[inline]
+#[must_use]
+pub fn timepoint_has_passed(timepoint: SystemTime) -> bool {
+	SystemTime::now()
+		.duration_since(timepoint)
+		.is_ok()
+}
+
 #[must_use]
 pub fn rfc2822_from_seconds(epoch: i64) -> String {
 	use chrono::{DateTime, Utc};