transfer

type CancelEvent struct{}

type DataEvent struct {
	// Type is the MIME type of Data.
	Type string
	// Open returns the transfer data. It is only valid to call Open in the frame
	// the DataEvent is received. The caller must close the return value after use.
	Open func() io.ReadCloser
}

type InitiateEvent struct{}

type OfferOp struct {
	Tag event.Tag
	// Type is the MIME type of Data.
	// It must be the Type from the corresponding RequestEvent.
	Type string
	// Data contains the offered data. It is closed when the
	// transfer is complete or cancelled.
	// Data must be kept valid until closed, and it may be used from
	// a goroutine separate from the one processing the frame..
	Data io.ReadCloser
}

type RequestEvent struct {
	// Type is the first matched type between the source and the target.
	Type string
}

type SourceOp struct {
	Tag event.Tag
	// Type is the MIME type supported by this source.
	Type string
}

type TargetOp struct {
	Tag event.Tag
	// Type is the MIME type accepted by this target.
	Type string
}