package filer_pb import ( "fmt" "sync" "time" "github.com/chrislusf/seaweedfs/weed/util" ) func TraverseBfs(filerClient FilerClient, parentPath util.FullPath, fn func(parentPath util.FullPath, entry *Entry)) (err error) { K := 5 var jobQueueWg sync.WaitGroup queue := util.NewQueue() jobQueueWg.Add(1) queue.Enqueue(parentPath) var isTerminating bool for i := 0; i < K; i++ { go func() { for { if isTerminating { break } t := queue.Dequeue() if t == nil { time.Sleep(329 * time.Millisecond) continue } dir := t.(util.FullPath) processErr := processOneDirectory(filerClient, dir, queue, &jobQueueWg, fn) if processErr != nil { err = processErr } jobQueueWg.Done() } }() } jobQueueWg.Wait() isTerminating = true return } func processOneDirectory(filerClient FilerClient, parentPath util.FullPath, queue *util.Queue, jobQueueWg *sync.WaitGroup, fn func(parentPath util.FullPath, entry *Entry)) (err error) { return ReadDirAllEntries(filerClient, parentPath, "", func(entry *Entry, isLast bool) { fn(parentPath, entry) if entry.IsDirectory { subDir := fmt.Sprintf("%s/%s", parentPath, entry.Name) if parentPath == "/" { subDir = "/" + entry.Name } jobQueueWg.Add(1) queue.Enqueue(util.FullPath(subDir)) } }) }