func (d *gossipDiscoveryImpl) InitiateSync(peerNum int) {
if d.toDie() {
return
}
var peers2SendTo []*NetworkMember
memReq := d.createMembershipRequest()
d.lock.RLock()
n := len(d.cachedMembership.Alive)
k := peerNum
if k > n {
k = n
}
for _, i := range util.GetRandomIndices(k, n-1) {
pulledPeer := d.cachedMembership.Alive[i].Membership
netMember := &NetworkMember{
Endpoint: pulledPeer.Endpoint,
Metadata: pulledPeer.Metadata,
PKIid: pulledPeer.PkiID,
}
peers2SendTo = append(peers2SendTo, netMember)
}
d.lock.RUnlock()
for _, netMember := range peers2SendTo {
d.comm.SendToPeer(netMember, memReq)
}
}
func SelectEndpoints(k int, peerPool []discovery.NetworkMember) []*comm.RemotePeer {
if len(peerPool) < k {
k = len(peerPool)
}
indices := util.GetRandomIndices(k, len(peerPool)-1)
endpoints := make([]*comm.RemotePeer, len(indices))
for i, j := range indices {
endpoints[i] = &comm.RemotePeer{Endpoint: peerPool[j].Endpoint, PKIID: peerPool[j].PKIid}
}
return endpoints
}