add electorate

For an upcoming change in remake coordination, nodes now maintain
their self-assessed liveness in the document.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
index cc1699e..5f1b3d2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -102,6 +102,11 @@ struct Args {
     #[arg(long, value_name = "NAME", value_parser = parse_alias)]
     alias: Option<String>,
 
+    /// Members that renewed their alive stamp within this many days vote on remakes
+    /// (a majority of them must agree). Matters on the node that coordinates a remake.
+    #[arg(long, value_name = "DAYS", default_value_t = 7, value_parser = clap::value_parser!(u64).range(1..))]
+    electorate_window_days: u64,
+
     /// Test hook: start on a non-genesis epoch of this generation (with a fixed dummy
     /// id), to check that nodes on different epochs refuse to sync.
     #[arg(long, hide = true, requires = "debug_api", value_name = "GENERATION")]
@@ -222,6 +227,7 @@ async fn main() -> Result<()> {
         run_id: uuid::Uuid::new_v4().into_bytes(),
         neighbours_k: args.neighbours.max(2),
         alias: args.alias,
+        electorate_window: Duration::from_secs(args.electorate_window_days * 24 * 3600),
         neighbours: Default::default(),
         pulling: Default::default(),
         rtt: Default::default(),