[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/coreos/etcd/pkg/pbutil/pbutil.go b/vendor/github.com/coreos/etcd/pkg/pbutil/pbutil.go
new file mode 100644
index 0000000..d70f98d
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/pkg/pbutil/pbutil.go
@@ -0,0 +1,60 @@
+// Copyright 2015 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 pbutil defines interfaces for handling Protocol Buffer objects.
+package pbutil
+
+import "github.com/coreos/pkg/capnslog"
+
+var (
+ plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "pkg/pbutil")
+)
+
+type Marshaler interface {
+ Marshal() (data []byte, err error)
+}
+
+type Unmarshaler interface {
+ Unmarshal(data []byte) error
+}
+
+func MustMarshal(m Marshaler) []byte {
+ d, err := m.Marshal()
+ if err != nil {
+ plog.Panicf("marshal should never fail (%v)", err)
+ }
+ return d
+}
+
+func MustUnmarshal(um Unmarshaler, data []byte) {
+ if err := um.Unmarshal(data); err != nil {
+ plog.Panicf("unmarshal should never fail (%v)", err)
+ }
+}
+
+func MaybeUnmarshal(um Unmarshaler, data []byte) bool {
+ if err := um.Unmarshal(data); err != nil {
+ return false
+ }
+ return true
+}
+
+func GetBool(v *bool) (vv bool, set bool) {
+ if v == nil {
+ return false, false
+ }
+ return *v, true
+}
+
+func Boolp(b bool) *bool { return &b }