[VOL-3142] Update dependency of voltha-lib-go to include log package registration fix
Change-Id: I36890c7aa685e46721b481d5c965f9c0bc86934c
diff --git a/vendor/github.com/uber/jaeger-client-go/rpcmetrics/endpoints.go b/vendor/github.com/uber/jaeger-client-go/rpcmetrics/endpoints.go
new file mode 100644
index 0000000..3055524
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-client-go/rpcmetrics/endpoints.go
@@ -0,0 +1,63 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// 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 rpcmetrics
+
+import "sync"
+
+// normalizedEndpoints is a cache for endpointName -> safeName mappings.
+type normalizedEndpoints struct {
+ names map[string]string
+ maxSize int
+ defaultName string
+ normalizer NameNormalizer
+ mux sync.RWMutex
+}
+
+func newNormalizedEndpoints(maxSize int, normalizer NameNormalizer) *normalizedEndpoints {
+ return &normalizedEndpoints{
+ maxSize: maxSize,
+ normalizer: normalizer,
+ names: make(map[string]string, maxSize),
+ }
+}
+
+// normalize looks up the name in the cache, if not found it uses normalizer
+// to convert the name to a safe name. If called with more than maxSize unique
+// names it returns "" for all other names beyond those already cached.
+func (n *normalizedEndpoints) normalize(name string) string {
+ n.mux.RLock()
+ norm, ok := n.names[name]
+ l := len(n.names)
+ n.mux.RUnlock()
+ if ok {
+ return norm
+ }
+ if l >= n.maxSize {
+ return ""
+ }
+ return n.normalizeWithLock(name)
+}
+
+func (n *normalizedEndpoints) normalizeWithLock(name string) string {
+ norm := n.normalizer.Normalize(name)
+ n.mux.Lock()
+ defer n.mux.Unlock()
+ // cache may have grown while we were not holding the lock
+ if len(n.names) >= n.maxSize {
+ return ""
+ }
+ n.names[name] = norm
+ return norm
+}