46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
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// Copyright 2019 The etcd 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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package raftpb
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import (
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"fmt"
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"reflect"
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"sort"
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)
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// Equivalent returns a nil error if the inputs describe the same configuration.
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// On mismatch, returns a descriptive error showing the differences.
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func (cs ConfState) Equivalent(cs2 ConfState) error {
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cs1 := cs
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orig1, orig2 := cs1, cs2
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s := func(sl *[]uint64) {
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*sl = append([]uint64(nil), *sl...)
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sort.Slice(*sl, func(i, j int) bool { return (*sl)[i] < (*sl)[j] })
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}
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for _, cs := range []*ConfState{&cs1, &cs2} {
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s(&cs.Voters)
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s(&cs.Learners)
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s(&cs.VotersOutgoing)
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s(&cs.LearnersNext)
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cs.XXX_unrecognized = nil
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}
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if !reflect.DeepEqual(cs1, cs2) {
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return fmt.Errorf("ConfStates not equivalent after sorting:\n%+#v\n%+#v\nInputs were:\n%+#v\n%+#v", cs1, cs2, orig1, orig2)
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}
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return nil
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}
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