69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
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// Copyright 2018 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package balancer
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import (
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"fmt"
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"net/url"
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"sort"
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"sync/atomic"
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"time"
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"google.golang.org/grpc/balancer"
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"google.golang.org/grpc/resolver"
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)
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func scToString(sc balancer.SubConn) string {
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return fmt.Sprintf("%p", sc)
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}
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func scsToStrings(scs map[balancer.SubConn]resolver.Address) (ss []string) {
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ss = make([]string, 0, len(scs))
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for sc, a := range scs {
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ss = append(ss, fmt.Sprintf("%s (%s)", a.Addr, scToString(sc)))
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}
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sort.Strings(ss)
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return ss
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}
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func addrsToStrings(addrs []resolver.Address) (ss []string) {
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ss = make([]string, len(addrs))
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for i := range addrs {
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ss[i] = addrs[i].Addr
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}
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sort.Strings(ss)
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return ss
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}
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func epsToAddrs(eps ...string) (addrs []resolver.Address) {
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addrs = make([]resolver.Address, 0, len(eps))
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for _, ep := range eps {
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u, err := url.Parse(ep)
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if err != nil {
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addrs = append(addrs, resolver.Address{Addr: ep, Type: resolver.Backend})
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continue
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}
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addrs = append(addrs, resolver.Address{Addr: u.Host, Type: resolver.Backend})
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}
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return addrs
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}
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var genN = new(uint32)
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func genName() string {
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now := time.Now().UnixNano()
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return fmt.Sprintf("%X%X", now, atomic.AddUint32(genN, 1))
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}
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