add clock module

The Clock module is the system clock that every unix timestamp new goes
through.  It comes with an offset that only tests can set.

1 files changed, 7 insertions, 3 deletions

diff --git a/src/swarm/state_file.rs b/src/swarm/state_file.rs
index 62a6dbe..8b883fc 100644
--- a/src/swarm/state_file.rs
+++ b/src/swarm/state_file.rs
@@ -129,7 +129,12 @@ pub(crate) async fn update(state: &AppState, now: bool) {
 
     let seeds = {
         let replica = state.doc.read().await;
-        seeds(&replica.doc, state.local_id(), state.electorate_window)
+        seeds(
+            &replica.doc,
+            state.local_id(),
+            state.electorate_window,
+            state.clock.now_millis(),
+        )
     };
     let remembered = Remembered { swarm_id, seeds };
 
@@ -172,8 +177,7 @@ pub(crate) async fn update(state: &AppState, now: bool) {
 /// Members to rejoin through: those alive within the electorate window, stable ones
 /// first, at most `MAX_SEEDS`, sorted. Changes only when members join, leave or change
 /// tier, so the file rarely does.
-fn seeds(doc: &automerge::AutoCommit, me: &str, window: Duration) -> Vec<String> {
-    let now = crate::state::unix_millis();
+fn seeds(doc: &automerge::AutoCommit, me: &str, window: Duration, now: u64) -> Vec<String> {
     let (mut stable, transient): (Vec<String>, Vec<String>) = members::electorate(doc, now, window)
         .into_iter()
         .filter(|pk| pk != me)