/
unix.go
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/
unix.go
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/*
*
* Copyright 2020 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 unix implements a resolver for unix targets.
package unix
import (
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/resolver"
)
const scheme = "unix"
type unixBuilder struct{}
func (*unixBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
r := &unixResolver{
target: target,
cc: cc,
}
r.start()
return r, nil
}
func (*unixBuilder) Scheme() string {
return scheme
}
type unixResolver struct {
target resolver.Target
cc resolver.ClientConn
}
func (r *unixResolver) start() {
r.cc.UpdateState(resolver.State{Addresses: []resolver.Address{{Addr: "/" + r.target.Endpoint, Attributes: attributes.New("network_type", "unix")}}})
}
func (*unixResolver) ResolveNow(o resolver.ResolveNowOptions) {}
func (*unixResolver) Close() {}
func init() {
resolver.Register(&unixBuilder{})
}