mirror of
https://github.com/letic/terraform-provider-google.git
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961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
// Copyright 2016 Google LLC
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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 internal
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import (
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"errors"
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"google.golang.org/grpc/naming"
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)
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// PoolResolver provides a fixed list of addresses to load balance between
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// and does not provide further updates.
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type PoolResolver struct {
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poolSize int
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dialOpt *DialSettings
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ch chan []*naming.Update
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}
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// NewPoolResolver returns a PoolResolver
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// This is an EXPERIMENTAL API and may be changed or removed in the future.
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func NewPoolResolver(size int, o *DialSettings) *PoolResolver {
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return &PoolResolver{poolSize: size, dialOpt: o}
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}
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// Resolve returns a Watcher for the endpoint defined by the DialSettings
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// provided to NewPoolResolver.
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func (r *PoolResolver) Resolve(target string) (naming.Watcher, error) {
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if r.dialOpt.Endpoint == "" {
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return nil, errors.New("No endpoint configured")
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}
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addrs := make([]*naming.Update, 0, r.poolSize)
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for i := 0; i < r.poolSize; i++ {
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addrs = append(addrs, &naming.Update{Op: naming.Add, Addr: r.dialOpt.Endpoint, Metadata: i})
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}
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r.ch = make(chan []*naming.Update, 1)
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r.ch <- addrs
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return r, nil
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}
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// Next returns a static list of updates on the first call,
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// and blocks indefinitely until Close is called on subsequent calls.
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func (r *PoolResolver) Next() ([]*naming.Update, error) {
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return <-r.ch, nil
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}
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// Close releases resources associated with the pool and causes Next to unblock.
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func (r *PoolResolver) Close() {
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close(r.ch)
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}
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