mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
// Copyright 2022 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 linearizability
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import (
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"context"
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"time"
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"go.etcd.io/etcd/api/v3/mvccpb"
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clientv3 "go.etcd.io/etcd/client/v3"
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"go.uber.org/zap"
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)
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type recordingClient struct {
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client clientv3.Client
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history *appendableHistory
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}
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func NewClient(endpoints []string, ids idProvider) (*recordingClient, error) {
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cc, err := clientv3.New(clientv3.Config{
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Endpoints: endpoints,
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Logger: zap.NewNop(),
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DialKeepAliveTime: 1 * time.Millisecond,
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DialKeepAliveTimeout: 5 * time.Millisecond,
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})
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if err != nil {
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return nil, err
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}
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return &recordingClient{
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client: *cc,
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history: newAppendableHistory(ids),
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}, nil
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}
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func (c *recordingClient) Close() error {
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return c.client.Close()
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}
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func (c *recordingClient) Get(ctx context.Context, key string) ([]*mvccpb.KeyValue, error) {
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callTime := time.Now()
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resp, err := c.client.Get(ctx, key)
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returnTime := time.Now()
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if err != nil {
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return nil, err
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}
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c.history.AppendGet(key, callTime, returnTime, resp)
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return resp.Kvs, nil
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}
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func (c *recordingClient) Put(ctx context.Context, key, value string) error {
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callTime := time.Now()
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resp, err := c.client.Put(ctx, key, value)
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returnTime := time.Now()
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c.history.AppendPut(key, value, callTime, returnTime, resp, err)
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return err
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}
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func (c *recordingClient) Delete(ctx context.Context, key string) error {
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callTime := time.Now()
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resp, err := c.client.Delete(ctx, key)
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returnTime := time.Now()
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c.history.AppendDelete(key, callTime, returnTime, resp, err)
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return nil
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}
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func (c *recordingClient) Txn(ctx context.Context, key, expectedValue, newValue string) error {
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callTime := time.Now()
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txn := c.client.Txn(ctx)
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var cmp clientv3.Cmp
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if expectedValue == "" {
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cmp = clientv3.Compare(clientv3.CreateRevision(key), "=", 0)
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} else {
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cmp = clientv3.Compare(clientv3.Value(key), "=", expectedValue)
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}
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resp, err := txn.If(
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cmp,
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).Then(
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clientv3.OpPut(key, newValue),
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).Commit()
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returnTime := time.Now()
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c.history.AppendTxn(key, expectedValue, newValue, callTime, returnTime, resp, err)
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return err
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}
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