func()

in groupcache.go [576:604]

• 26 lines of code
• 5 McCabe index (conditional complexity)

func (g *Group) putFromPeer(ctx Context, peer ProtoPeer, key string, data []byte, ttl *time.Time) error {
	var ttlProto *tspb.Timestamp = nil
	var err error
	if ttl != nil {
		ttlProto, err = ptypes.TimestampProto(*ttl)
		if err != nil {
			return err
		}
	}
	req := &pb.PutRequest{
		Group: g.name,
		Key:   key,
		Value: data,
		Ttl:   ttlProto,
	}
	res := &pb.PutResponse{}
	err = peer.Put(ctx, req, res)
	if err != nil {
		return err
	}
	// TODO(bradfitz): use res.MinuteQps or something smart to
	// conditionally populate hotCache.  For now just do it some
	// percentage of the time.
	if rand.Intn(populateHotCacheOdds) == 0 {
		payload := newPayload(ByteView{b: data}, ttl)
		g.populateCache(key, payload, &g.hotCache)
	}
	return nil
}