Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/github.com/coreos/etcd/clientv3/leasing/util.go b/vendor/github.com/coreos/etcd/clientv3/leasing/util.go
new file mode 100644
index 0000000..61f6e8c
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/clientv3/leasing/util.go
@@ -0,0 +1,108 @@
+// Copyright 2017 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package leasing
+
+import (
+ "bytes"
+
+ v3 "github.com/coreos/etcd/clientv3"
+ v3pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+)
+
+func compareInt64(a, b int64) int {
+ switch {
+ case a < b:
+ return -1
+ case a > b:
+ return 1
+ default:
+ return 0
+ }
+}
+
+func evalCmp(resp *v3.GetResponse, tcmp v3.Cmp) bool {
+ var result int
+ if len(resp.Kvs) != 0 {
+ kv := resp.Kvs[0]
+ switch tcmp.Target {
+ case v3pb.Compare_VALUE:
+ if tv, _ := tcmp.TargetUnion.(*v3pb.Compare_Value); tv != nil {
+ result = bytes.Compare(kv.Value, tv.Value)
+ }
+ case v3pb.Compare_CREATE:
+ if tv, _ := tcmp.TargetUnion.(*v3pb.Compare_CreateRevision); tv != nil {
+ result = compareInt64(kv.CreateRevision, tv.CreateRevision)
+ }
+ case v3pb.Compare_MOD:
+ if tv, _ := tcmp.TargetUnion.(*v3pb.Compare_ModRevision); tv != nil {
+ result = compareInt64(kv.ModRevision, tv.ModRevision)
+ }
+ case v3pb.Compare_VERSION:
+ if tv, _ := tcmp.TargetUnion.(*v3pb.Compare_Version); tv != nil {
+ result = compareInt64(kv.Version, tv.Version)
+ }
+ }
+ }
+ switch tcmp.Result {
+ case v3pb.Compare_EQUAL:
+ return result == 0
+ case v3pb.Compare_NOT_EQUAL:
+ return result != 0
+ case v3pb.Compare_GREATER:
+ return result > 0
+ case v3pb.Compare_LESS:
+ return result < 0
+ }
+ return true
+}
+
+func gatherOps(ops []v3.Op) (ret []v3.Op) {
+ for _, op := range ops {
+ if !op.IsTxn() {
+ ret = append(ret, op)
+ continue
+ }
+ _, thenOps, elseOps := op.Txn()
+ ret = append(ret, gatherOps(append(thenOps, elseOps...))...)
+ }
+ return ret
+}
+
+func gatherResponseOps(resp []*v3pb.ResponseOp, ops []v3.Op) (ret []v3.Op) {
+ for i, op := range ops {
+ if !op.IsTxn() {
+ ret = append(ret, op)
+ continue
+ }
+ _, thenOps, elseOps := op.Txn()
+ if txnResp := resp[i].GetResponseTxn(); txnResp.Succeeded {
+ ret = append(ret, gatherResponseOps(txnResp.Responses, thenOps)...)
+ } else {
+ ret = append(ret, gatherResponseOps(txnResp.Responses, elseOps)...)
+ }
+ }
+ return ret
+}
+
+func copyHeader(hdr *v3pb.ResponseHeader) *v3pb.ResponseHeader {
+ h := *hdr
+ return &h
+}
+
+func closeAll(chs []chan<- struct{}) {
+ for _, ch := range chs {
+ close(ch)
+ }
+}