[VOL-4514] Addressing device reconciliation failure
This commit consists of augmention the current GetHeathStatus()
API on the grpc server with the grpc client information. This
provides the grpc server with more insights of the grpc client
connection status. This is useful for a server to know whether it
is more likely to receive a response following a request from a
remote server, represented by the grpc client(s). For now this is
used by the openonu adapter to figure out when it can send an
OMCI request to the openolt adapter following a restart of the
onu adapter.
Change-Id: I0c117c0002b83606b95d7269e6f53d21941e4ba5
diff --git a/vendor/google.golang.org/grpc/resolver/map.go b/vendor/google.golang.org/grpc/resolver/map.go
new file mode 100644
index 0000000..e87ecd0
--- /dev/null
+++ b/vendor/google.golang.org/grpc/resolver/map.go
@@ -0,0 +1,109 @@
+/*
+ *
+ * Copyright 2021 gRPC 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 resolver
+
+type addressMapEntry struct {
+ addr Address
+ value interface{}
+}
+
+// AddressMap is a map of addresses to arbitrary values taking into account
+// Attributes. BalancerAttributes are ignored, as are Metadata and Type.
+// Multiple accesses may not be performed concurrently. Must be created via
+// NewAddressMap; do not construct directly.
+type AddressMap struct {
+ m map[string]addressMapEntryList
+}
+
+type addressMapEntryList []*addressMapEntry
+
+// NewAddressMap creates a new AddressMap.
+func NewAddressMap() *AddressMap {
+ return &AddressMap{m: make(map[string]addressMapEntryList)}
+}
+
+// find returns the index of addr in the addressMapEntry slice, or -1 if not
+// present.
+func (l addressMapEntryList) find(addr Address) int {
+ if len(l) == 0 {
+ return -1
+ }
+ for i, entry := range l {
+ if entry.addr.ServerName == addr.ServerName &&
+ entry.addr.Attributes.Equal(addr.Attributes) {
+ return i
+ }
+ }
+ return -1
+}
+
+// Get returns the value for the address in the map, if present.
+func (a *AddressMap) Get(addr Address) (value interface{}, ok bool) {
+ entryList := a.m[addr.Addr]
+ if entry := entryList.find(addr); entry != -1 {
+ return entryList[entry].value, true
+ }
+ return nil, false
+}
+
+// Set updates or adds the value to the address in the map.
+func (a *AddressMap) Set(addr Address, value interface{}) {
+ entryList := a.m[addr.Addr]
+ if entry := entryList.find(addr); entry != -1 {
+ a.m[addr.Addr][entry].value = value
+ return
+ }
+ a.m[addr.Addr] = append(a.m[addr.Addr], &addressMapEntry{addr: addr, value: value})
+}
+
+// Delete removes addr from the map.
+func (a *AddressMap) Delete(addr Address) {
+ entryList := a.m[addr.Addr]
+ entry := entryList.find(addr)
+ if entry == -1 {
+ return
+ }
+ if len(entryList) == 1 {
+ entryList = nil
+ } else {
+ copy(entryList[entry:], entryList[entry+1:])
+ entryList = entryList[:len(entryList)-1]
+ }
+ a.m[addr.Addr] = entryList
+}
+
+// Len returns the number of entries in the map.
+func (a *AddressMap) Len() int {
+ ret := 0
+ for _, entryList := range a.m {
+ ret += len(entryList)
+ }
+ return ret
+}
+
+// Keys returns a slice of all current map keys.
+func (a *AddressMap) Keys() []Address {
+ ret := make([]Address, 0, a.Len())
+ for _, entryList := range a.m {
+ for _, entry := range entryList {
+ ret = append(ret, entry.addr)
+ }
+ }
+ return ret
+}