package images // import "github.com/docker/docker/daemon/images" import ( "fmt" "github.com/docker/go-metrics" ) type invalidFilter struct { filter string value interface{} } func (e invalidFilter) Error() string { msg := "Invalid filter '" + e.filter if e.value != nil { msg += fmt.Sprintf("=%s", e.value) } return msg + "'" } func (e invalidFilter) InvalidParameter() {} var imageActions metrics.LabeledTimer func init() { ns := metrics.NewNamespace("engine", "daemon", nil) imageActions = ns.NewLabeledTimer("image_actions", "The number of seconds it takes to process each image action", "action") // TODO: is it OK to register a namespace with the same name? Or does this // need to be exported from somewhere? metrics.Register(ns) }