From f75c35d4a0938872cdd1506d19bfff79ef0cb3fb Mon Sep 17 00:00:00 2001
From: Luna Yao <40349250+ZnqbuZ@users.noreply.github.com>
Date: Sun, 22 Feb 2026 03:11:14 +0100
Subject: [PATCH] add GlobalCtxEvent::PeerInfoUpdated, issue this event in
 do_sync_route_info

fix use in peer_ospf_route.rs
---
 easytier/src/common/global_ctx.rs     |  2 ++
 easytier/src/instance_manager.rs      |  2 ++
 easytier/src/peers/peer_ospf_route.rs | 31 ++++++++++++---------------
 3 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/easytier/src/common/global_ctx.rs b/easytier/src/common/global_ctx.rs
index 6a61b774..1cc589af 100644
--- a/easytier/src/common/global_ctx.rs
+++ b/easytier/src/common/global_ctx.rs
@@ -47,6 +47,8 @@ pub enum GlobalCtxEvent {
     PeerConnAdded(PeerConnInfo),
     PeerConnRemoved(PeerConnInfo),
 
+    PeerInfoUpdated(Vec<PeerId>),
+
     ListenerAdded(url::Url),
     ListenerAddFailed(url::Url, String), // (url, error message)
     ListenerAcceptFailed(url::Url, String), // (url, error message)
diff --git a/easytier/src/instance_manager.rs b/easytier/src/instance_manager.rs
index 1fb3f2b5..e071ddab 100644
--- a/easytier/src/instance_manager.rs
+++ b/easytier/src/instance_manager.rs
@@ -307,6 +307,8 @@ fn handle_event(
                         event!(info, peer_id, "[{}] peer removed", instance_id);
                     }
 
+                    GlobalCtxEvent::PeerInfoUpdated(_) => {}
+
                     GlobalCtxEvent::PeerConnAdded(conn_info) => {
                         event!(
                             info,
diff --git a/easytier/src/peers/peer_ospf_route.rs b/easytier/src/peers/peer_ospf_route.rs
index d766a3fc..fe8c02e6 100644
--- a/easytier/src/peers/peer_ospf_route.rs
+++ b/easytier/src/peers/peer_ospf_route.rs
@@ -72,16 +72,6 @@ use crate::{
     use_global_var,
 };
 
-use super::{
-    graph_algo::dijkstra_with_first_hop,
-    peer_rpc::PeerRpcManager,
-    route_trait::{
-        DefaultRouteCostCalculator, ForeignNetworkRouteInfoMap, NextHopPolicy, RouteCostCalculator,
-        RouteCostCalculatorInterface,
-    },
-    PeerPacketFilter,
-};
-
 use atomic_shim::AtomicU64;
 use itertools::Itertools;
 
@@ -558,8 +548,8 @@ impl SyncedRouteInfo {
         dst_peer_id: PeerId,
         peer_infos: &[RoutePeerInfo],
         raw_peer_infos: &[DynamicMessage],
-    ) -> Result<(), Error> {
-        let mut need_inc_version = false;
+    ) -> Result<Vec<PeerId>, Error> {
+        let mut updated_peer_ids = Vec::new();
         for (idx, route_info) in peer_infos.iter().enumerate() {
             let mut route_info = route_info.clone();
             let raw_route_info = &raw_peer_infos[idx];
@@ -595,14 +585,15 @@ impl SyncedRouteInfo {
             {
                 self.raw_peer_infos
                     .insert(route_info.peer_id, raw_route_info.clone());
-                guard.insert(route_info.peer_id, route_info);
-                need_inc_version = true;
+                let peer_id = route_info.peer_id;
+                guard.insert(peer_id, route_info);
+                updated_peer_ids.push(peer_id);
             }
         }
-        if need_inc_version {
+        if !updated_peer_ids.is_empty() {
             self.version.inc();
         }
-        Ok(())
+        Ok(updated_peer_ids)
     }
 
     fn update_conn_info_one_peer(
@@ -3202,7 +3193,7 @@ impl RouteSessionManager {
                 (peer_infos, raw_peer_infos.as_ref().unwrap())
             };
             if !pi.is_empty() {
-                service_impl.synced_route_info.update_peer_infos(
+                let updated_peer_ids = service_impl.synced_route_info.update_peer_infos(
                     my_peer_id,
                     service_impl.my_peer_route_id,
                     from_peer_id,
@@ -3217,6 +3208,12 @@ impl RouteSessionManager {
                     );
                 session.update_dst_saved_peer_info_version(pi, from_peer_id);
                 need_update_route_table = true;
+
+                if !updated_peer_ids.is_empty() {
+                    service_impl
+                        .global_ctx
+                        .issue_event(GlobalCtxEvent::PeerInfoUpdated(updated_peer_ids));
+                }
             }
         }