package filer2 import ( "fmt" "strings" "time" "github.com/golang/protobuf/proto" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/notification" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/util" ) func (f *Filer) NotifyUpdateEvent(oldEntry, newEntry *Entry, deleteChunks bool) { var fullpath string if oldEntry != nil { fullpath = string(oldEntry.FullPath) } else if newEntry != nil { fullpath = string(newEntry.FullPath) } else { return } // println("fullpath:", fullpath) if strings.HasPrefix(fullpath, "/.meta") { return } newParentPath := "" if newEntry != nil { newParentPath, _ = newEntry.FullPath.DirAndName() } eventNotification := &filer_pb.EventNotification{ OldEntry: oldEntry.ToProtoEntry(), NewEntry: newEntry.ToProtoEntry(), DeleteChunks: deleteChunks, NewParentPath: newParentPath, } if notification.Queue != nil { glog.V(3).Infof("notifying entry update %v", fullpath) notification.Queue.SendMessage(fullpath, eventNotification) } f.logMetaEvent(time.Now(), fullpath, eventNotification) } func (f *Filer) logMetaEvent(ts time.Time, fullpath string, eventNotification *filer_pb.EventNotification) { dir, _ := util.FullPath(fullpath).DirAndName() event := &filer_pb.FullEventNotification{ Directory: dir, EventNotification: eventNotification, } data, err := proto.Marshal(event) if err != nil { glog.Errorf("failed to marshal filer_pb.FullEventNotification %+v: %v", event, err) return } f.metaLogBuffer.AddToBuffer(ts, []byte(dir), data) } func (f *Filer) logFlushFunc(startTime, stopTime time.Time, buf []byte) { return targetFile := fmt.Sprintf("/.meta/log/%04d/%02d/%02d/%02d/%02d/%02d.%09d.log", startTime.Year(), startTime.Month(), startTime.Day(), startTime.Hour(), startTime.Minute(), startTime.Second(), startTime.Nanosecond()) if err := f.appendToFile(targetFile, buf); err != nil { glog.V(0).Infof("log write failed %s: %v", targetFile, err) } } func (f *Filer) ReadLogBuffer(lastReadTime time.Time, eachEventFn func(fullpath string, eventNotification *filer_pb.EventNotification) error) (newLastReadTime time.Time, err error) { var buf []byte newLastReadTime, buf = f.metaLogBuffer.ReadFromBuffer(lastReadTime) var processedTs int64 for pos := 0; pos+4 < len(buf); { size := util.BytesToUint32(buf[pos : pos+4]) entryData := buf[pos+4 : pos+4+int(size)] logEntry := &filer_pb.LogEntry{} err = proto.Unmarshal(entryData, logEntry) if err != nil { glog.Errorf("unexpected unmarshal filer_pb.LogEntry: %v", err) return lastReadTime, fmt.Errorf("unexpected unmarshal filer_pb.LogEntry: %v", err) } event := &filer_pb.FullEventNotification{} err = proto.Unmarshal(logEntry.Data, event) if err != nil { glog.Errorf("unexpected unmarshal filer_pb.FullEventNotification: %v", err) return lastReadTime, fmt.Errorf("unexpected unmarshal filer_pb.FullEventNotification: %v", err) } err = eachEventFn(event.Directory, event.EventNotification) processedTs = logEntry.TsNs if err != nil { newLastReadTime = time.Unix(0, processedTs) return } pos += 4 + int(size) } newLastReadTime = time.Unix(0, processedTs) return }