Implement gateway S3 support (#3940)

cmd/object-api-datatypes.go

@@ -221,6 +221,30 @@ type ListObjectsInfo struct {
 	Prefixes []string
 }
 
+// ListObjectsV2Info - container for list objects version 2.
+type ListObjectsV2Info struct {
+	// Indicates whether the returned list objects response is truncated. A
+	// value of true indicates that the list was truncated. The list can be truncated
+	// if the number of objects exceeds the limit allowed or specified
+	// by max keys.
+	IsTruncated bool
+
+	// When response is truncated (the IsTruncated element value in the response
+	// is true), you can use the key name in this field as marker in the subsequent
+	// request to get next set of objects.
+	//
+	// NOTE: This element is returned only if you have delimiter request parameter
+	// specified.
+	ContinuationToken     string
+	NextContinuationToken string
+
+	// List of objects info for this request.
+	Objects []ObjectInfo
+
+	// List of prefixes for this request.
+	Prefixes []string
+}
+
 // PartInfo - represents individual part metadata.
 type PartInfo struct {
 	// Part number that identifies the part. This is a positive integer between