wehub-resource-sync
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100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
//go:build test
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// +build test
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package walimplstest
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import (
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"context"
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"math/rand"
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"github.com/cockroachdb/errors"
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"go.uber.org/atomic"
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"github.com/milvus-io/milvus/pkg/v3/proto/streamingpb"
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"github.com/milvus-io/milvus/pkg/v3/streaming/util/message"
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"github.com/milvus-io/milvus/pkg/v3/streaming/util/types"
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"github.com/milvus-io/milvus/pkg/v3/streaming/walimpls"
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"github.com/milvus-io/milvus/pkg/v3/streaming/walimpls/helper"
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"github.com/milvus-io/milvus/pkg/v3/util/typeutil"
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)
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var (
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_ walimpls.WALImpls = &walImpls{}
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fenced = typeutil.NewConcurrentSet[string]()
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enableFenceError = atomic.NewBool(true)
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)
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// Reset clears global state of the in-memory WAL test implementation.
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func Reset() {
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logs = typeutil.NewConcurrentMap[string, *messageLog]()
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fenced = typeutil.NewConcurrentSet[string]()
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enableFenceError.Store(true)
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}
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// EnableFenced enables fenced mode for the given channel.
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func EnableFenced(channel string) {
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fenced.Insert(channel)
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}
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// DisableFenced disables fenced mode for the given channel.
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func DisableFenced(channel string) {
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fenced.Remove(channel)
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}
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type walImpls struct {
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helper.WALHelper
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datas *messageLog
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}
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func (w *walImpls) WALName() message.WALName {
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return message.WALNameTest
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}
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func (w *walImpls) Append(ctx context.Context, msg message.MutableMessage) (message.MessageID, error) {
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if w.Channel().AccessMode != types.AccessModeRW {
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panic("write on a wal that is not in read-write mode")
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}
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if fenced.Contain(w.Channel().Name) {
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return nil, errors.Mark(errors.New("err"), walimpls.ErrFenced)
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}
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if enableFenceError.Load() && msg.MessageType() != message.MessageTypeTimeTick && rand.Int31n(30) == 0 {
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return nil, errors.New("random error")
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}
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return w.datas.Append(ctx, msg)
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}
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func (w *walImpls) Read(ctx context.Context, opts walimpls.ReadOption) (walimpls.ScannerImpls, error) {
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offset := int64(0)
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switch t := opts.DeliverPolicy.GetPolicy().(type) {
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case *streamingpb.DeliverPolicy_All:
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offset = 0
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case *streamingpb.DeliverPolicy_Latest:
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offset = w.datas.Len()
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case *streamingpb.DeliverPolicy_StartFrom:
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id, err := unmarshalTestMessageID(t.StartFrom.GetId())
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if err != nil {
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return nil, err
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}
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offset = int64(id)
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case *streamingpb.DeliverPolicy_StartAfter:
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id, err := unmarshalTestMessageID(t.StartAfter.GetId())
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if err != nil {
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return nil, err
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}
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offset = int64(id) + 1
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}
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return newScannerImpls(
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opts, w.datas, int(offset),
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), nil
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}
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func (w *walImpls) Truncate(ctx context.Context, id message.MessageID) error {
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if w.Channel().AccessMode != types.AccessModeRW {
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panic("truncate on a wal that is not in read-write mode")
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}
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return nil
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}
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func (w *walImpls) Close() {
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}
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