server: add a current option to WatchBestPath()

also, use it for zebra integration

Signed-off-by: ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp>

1 files changed, 18 insertions, 0 deletions

diff --git a/table/destination.go b/table/destination.go
index ac3ef0c8..1ded7962 100644
--- a/table/destination.go
+++ b/table/destination.go
@@ -182,6 +182,24 @@ func (dd *Destination) GetBestPath(id string) *Path {
 	return nil
 }
 
+func (dd *Destination) GetMultiBestPath(id string) []*Path {
+	list := make([]*Path, 0, len(dd.knownPathList))
+	var best *Path
+	for _, p := range dd.knownPathList {
+		if p.Filtered(id) == POLICY_DIRECTION_NONE {
+			if best == nil {
+				best = p
+				list = append(list, p)
+			} else if best.Compare(p) == 0 {
+				list = append(list, p)
+			} else {
+				return list
+			}
+		}
+	}
+	return nil
+}
+
 func (dd *Destination) AddWithdraw(withdraw *Path) {
 	dd.validatePath(withdraw)
 	dd.withdrawList = append(dd.withdrawList, withdraw)