2aa18cafc6
With CoreDNS now supporting etcdv3 as the DNS backend, we can update our federation target to etcdv3. Users will now be able to use etcdv3 server as the federation backbone. Minio will update bucket data to etcdv3 and CoreDNS can pick that data up and serve it as bucket style DNS path.
101 lines
3.3 KiB
Go
101 lines
3.3 KiB
Go
// Copyright 2016 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 clientv3
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import (
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"io/ioutil"
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"sync"
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"github.com/coreos/etcd/pkg/logutil"
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"google.golang.org/grpc/grpclog"
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)
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var (
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lgMu sync.RWMutex
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lg logutil.Logger
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)
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type settableLogger struct {
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l grpclog.LoggerV2
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mu sync.RWMutex
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}
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func init() {
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// disable client side logs by default
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lg = &settableLogger{}
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SetLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard))
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}
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// SetLogger sets client-side Logger.
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func SetLogger(l grpclog.LoggerV2) {
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lgMu.Lock()
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lg = logutil.NewLogger(l)
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// override grpclog so that any changes happen with locking
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grpclog.SetLoggerV2(lg)
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lgMu.Unlock()
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}
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// GetLogger returns the current logutil.Logger.
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func GetLogger() logutil.Logger {
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lgMu.RLock()
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l := lg
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lgMu.RUnlock()
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return l
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}
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// NewLogger returns a new Logger with logutil.Logger.
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func NewLogger(gl grpclog.LoggerV2) logutil.Logger {
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return &settableLogger{l: gl}
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}
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func (s *settableLogger) get() grpclog.LoggerV2 {
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s.mu.RLock()
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l := s.l
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s.mu.RUnlock()
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return l
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}
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// implement the grpclog.LoggerV2 interface
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func (s *settableLogger) Info(args ...interface{}) { s.get().Info(args...) }
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func (s *settableLogger) Infof(format string, args ...interface{}) { s.get().Infof(format, args...) }
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func (s *settableLogger) Infoln(args ...interface{}) { s.get().Infoln(args...) }
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func (s *settableLogger) Warning(args ...interface{}) { s.get().Warning(args...) }
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func (s *settableLogger) Warningf(format string, args ...interface{}) {
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s.get().Warningf(format, args...)
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}
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func (s *settableLogger) Warningln(args ...interface{}) { s.get().Warningln(args...) }
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func (s *settableLogger) Error(args ...interface{}) { s.get().Error(args...) }
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func (s *settableLogger) Errorf(format string, args ...interface{}) {
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s.get().Errorf(format, args...)
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}
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func (s *settableLogger) Errorln(args ...interface{}) { s.get().Errorln(args...) }
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func (s *settableLogger) Fatal(args ...interface{}) { s.get().Fatal(args...) }
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func (s *settableLogger) Fatalf(format string, args ...interface{}) { s.get().Fatalf(format, args...) }
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func (s *settableLogger) Fatalln(args ...interface{}) { s.get().Fatalln(args...) }
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func (s *settableLogger) Print(args ...interface{}) { s.get().Info(args...) }
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func (s *settableLogger) Printf(format string, args ...interface{}) { s.get().Infof(format, args...) }
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func (s *settableLogger) Println(args ...interface{}) { s.get().Infoln(args...) }
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func (s *settableLogger) V(l int) bool { return s.get().V(l) }
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func (s *settableLogger) Lvl(lvl int) grpclog.LoggerV2 {
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s.mu.RLock()
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l := s.l
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s.mu.RUnlock()
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if l.V(lvl) {
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return s
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}
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return logutil.NewDiscardLogger()
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}
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