init repo

vendor/github.com/alibabacloud-go/tea/utils/progress.go

@@ -0,0 +1,60 @@
+package utils
+
+// ProgressEventType defines transfer progress event type
+type ProgressEventType int
+
+const (
+	// TransferStartedEvent transfer started, set TotalBytes
+	TransferStartedEvent ProgressEventType = 1 + iota
+	// TransferDataEvent transfer data, set ConsumedBytes anmd TotalBytes
+	TransferDataEvent
+	// TransferCompletedEvent transfer completed
+	TransferCompletedEvent
+	// TransferFailedEvent transfer encounters an error
+	TransferFailedEvent
+)
+
+// ProgressEvent defines progress event
+type ProgressEvent struct {
+	ConsumedBytes int64
+	TotalBytes    int64
+	RwBytes       int64
+	EventType     ProgressEventType
+}
+
+// ProgressListener listens progress change
+type ProgressListener interface {
+	ProgressChanged(event *ProgressEvent)
+}
+
+// -------------------- Private --------------------
+
+func NewProgressEvent(eventType ProgressEventType, consumed, total int64, rwBytes int64) *ProgressEvent {
+	return &ProgressEvent{
+		ConsumedBytes: consumed,
+		TotalBytes:    total,
+		RwBytes:       rwBytes,
+		EventType:     eventType}
+}
+
+// publishProgress
+func PublishProgress(listener ProgressListener, event *ProgressEvent) {
+	if listener != nil && event != nil {
+		listener.ProgressChanged(event)
+	}
+}
+
+func GetProgressListener(obj interface{}) ProgressListener {
+	if obj == nil {
+		return nil
+	}
+	listener, ok := obj.(ProgressListener)
+	if !ok {
+		return nil
+	}
+	return listener
+}
+
+type ReaderTracker struct {
+	CompletedBytes int64
+}