go.etcd.io/etcd@v3.3.27+incompatible/pkg/transport/unix_listener.go (about) 1 // Copyright 2016 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package transport 16 17 import ( 18 "net" 19 "os" 20 ) 21 22 type unixListener struct{ net.Listener } 23 24 func NewUnixListener(addr string) (net.Listener, error) { 25 if err := os.Remove(addr); err != nil && !os.IsNotExist(err) { 26 return nil, err 27 } 28 l, err := net.Listen("unix", addr) 29 if err != nil { 30 return nil, err 31 } 32 return &unixListener{l}, nil 33 } 34 35 func (ul *unixListener) Close() error { 36 if err := os.Remove(ul.Addr().String()); err != nil && !os.IsNotExist(err) { 37 return err 38 } 39 return ul.Listener.Close() 40 }