mirror of
https://github.com/letic/terraform-provider-google.git
synced 2024-09-16 08:10:02 +00:00
e5e1c1e97f
Update all the packages under google.golang.org/api to use the same commit. This is a necessary precursor for using Go modules. There is a breaking API change in the clients, but it's a one line change. As such, Travis will say this doesn't build. I've verified after the one line change, it will run the unit tests. That change needs to be made in MM, however. Once this PR is merged, a PR against MM will be opened.
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
// Copyright 2016 Google LLC
|
|
//
|
|
// 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 internal
|
|
|
|
import (
|
|
"errors"
|
|
"google.golang.org/grpc/naming"
|
|
)
|
|
|
|
// PoolResolver provides a fixed list of addresses to load balance between
|
|
// and does not provide further updates.
|
|
type PoolResolver struct {
|
|
poolSize int
|
|
dialOpt *DialSettings
|
|
ch chan []*naming.Update
|
|
}
|
|
|
|
// NewPoolResolver returns a PoolResolver
|
|
// This is an EXPERIMENTAL API and may be changed or removed in the future.
|
|
func NewPoolResolver(size int, o *DialSettings) *PoolResolver {
|
|
return &PoolResolver{poolSize: size, dialOpt: o}
|
|
}
|
|
|
|
// Resolve returns a Watcher for the endpoint defined by the DialSettings
|
|
// provided to NewPoolResolver.
|
|
func (r *PoolResolver) Resolve(target string) (naming.Watcher, error) {
|
|
if r.dialOpt.Endpoint == "" {
|
|
return nil, errors.New("No endpoint configured")
|
|
}
|
|
addrs := make([]*naming.Update, 0, r.poolSize)
|
|
for i := 0; i < r.poolSize; i++ {
|
|
addrs = append(addrs, &naming.Update{Op: naming.Add, Addr: r.dialOpt.Endpoint, Metadata: i})
|
|
}
|
|
r.ch = make(chan []*naming.Update, 1)
|
|
r.ch <- addrs
|
|
return r, nil
|
|
}
|
|
|
|
// Next returns a static list of updates on the first call,
|
|
// and blocks indefinitely until Close is called on subsequent calls.
|
|
func (r *PoolResolver) Next() ([]*naming.Update, error) {
|
|
return <-r.ch, nil
|
|
}
|
|
|
|
func (r *PoolResolver) Close() {
|
|
close(r.ch)
|
|
}
|