mirror of https://github.com/grpc/grpc-go.git
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
/*
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*
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* Copyright 2020 gRPC 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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*
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*/
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// Package rls implements the RLS LB policy.
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package rls
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import (
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"google.golang.org/grpc/balancer"
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"google.golang.org/grpc/internal/grpcsync"
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)
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const rlsBalancerName = "rls"
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func init() {
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balancer.Register(&rlsBB{})
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}
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// rlsBB helps build RLS load balancers and parse the service config to be
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// passed to the RLS load balancer.
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type rlsBB struct{}
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// Name returns the name of the RLS LB policy and helps implement the
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// balancer.Balancer interface.
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func (*rlsBB) Name() string {
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return rlsBalancerName
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}
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func (*rlsBB) Build(cc balancer.ClientConn, opts balancer.BuildOptions) balancer.Balancer {
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lb := &rlsBalancer{
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done: grpcsync.NewEvent(),
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cc: cc,
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opts: opts,
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lbCfg: &lbConfig{},
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ccUpdateCh: make(chan *balancer.ClientConnState),
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}
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go lb.run()
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return lb
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}
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