[VOL-1386] This commit add "dep" as the package management tool
for voltha-go.
Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/github.com/golang-collections/go-datastructures/queue/error.go b/vendor/github.com/golang-collections/go-datastructures/queue/error.go
new file mode 100644
index 0000000..29c062c
--- /dev/null
+++ b/vendor/github.com/golang-collections/go-datastructures/queue/error.go
@@ -0,0 +1,21 @@
+/*
+Copyright 2014 Workiva, LLC
+
+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 queue
+
+import "errors"
+
+var disposedError = errors.New(`Queue has been disposed.`)