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Diffstat (limited to 'vendor/google.golang.org/grpc/balancer/roundrobin')
-rw-r--r--vendor/google.golang.org/grpc/balancer/roundrobin/roundrobin.go79
1 files changed, 0 insertions, 79 deletions
diff --git a/vendor/google.golang.org/grpc/balancer/roundrobin/roundrobin.go b/vendor/google.golang.org/grpc/balancer/roundrobin/roundrobin.go
deleted file mode 100644
index 2eda0a1..0000000
--- a/vendor/google.golang.org/grpc/balancer/roundrobin/roundrobin.go
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- *
- * Copyright 2017 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 roundrobin defines a roundrobin balancer. Roundrobin balancer is
-// installed as one of the default balancers in gRPC, users don't need to
-// explicitly install this balancer.
-package roundrobin
-
-import (
- "sync"
-
- "golang.org/x/net/context"
- "google.golang.org/grpc/balancer"
- "google.golang.org/grpc/balancer/base"
- "google.golang.org/grpc/grpclog"
- "google.golang.org/grpc/resolver"
-)
-
-// Name is the name of round_robin balancer.
-const Name = "round_robin"
-
-// newBuilder creates a new roundrobin balancer builder.
-func newBuilder() balancer.Builder {
- return base.NewBalancerBuilder(Name, &rrPickerBuilder{})
-}
-
-func init() {
- balancer.Register(newBuilder())
-}
-
-type rrPickerBuilder struct{}
-
-func (*rrPickerBuilder) Build(readySCs map[resolver.Address]balancer.SubConn) balancer.Picker {
- grpclog.Infof("roundrobinPicker: newPicker called with readySCs: %v", readySCs)
- var scs []balancer.SubConn
- for _, sc := range readySCs {
- scs = append(scs, sc)
- }
- return &rrPicker{
- subConns: scs,
- }
-}
-
-type rrPicker struct {
- // subConns is the snapshot of the roundrobin balancer when this picker was
- // created. The slice is immutable. Each Get() will do a round robin
- // selection from it and return the selected SubConn.
- subConns []balancer.SubConn
-
- mu sync.Mutex
- next int
-}
-
-func (p *rrPicker) Pick(ctx context.Context, opts balancer.PickOptions) (balancer.SubConn, func(balancer.DoneInfo), error) {
- if len(p.subConns) <= 0 {
- return nil, nil, balancer.ErrNoSubConnAvailable
- }
-
- p.mu.Lock()
- sc := p.subConns[p.next]
- p.next = (p.next + 1) % len(p.subConns)
- p.mu.Unlock()
- return sc, nil, nil
-}