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package wire
import (
"github.com/quic-go/quic-go/internal/protocol"
"github.com/quic-go/quic-go/quicvarint"
)
// A MaxDataFrame carries flow control information for the connection
type MaxDataFrame struct {
MaximumData protocol.ByteCount
}
// parseMaxDataFrame parses a MAX_DATA frame
func parseMaxDataFrame(b []byte, _ protocol.Version) (*MaxDataFrame, int, error) {
frame := &MaxDataFrame{}
byteOffset, l, err := quicvarint.Parse(b)
if err != nil {
return nil, 0, replaceUnexpectedEOF(err)
}
frame.MaximumData = protocol.ByteCount(byteOffset)
return frame, l, nil
}
func (f *MaxDataFrame) Append(b []byte, _ protocol.Version) ([]byte, error) {
b = append(b, byte(FrameTypeMaxData))
b = quicvarint.Append(b, uint64(f.MaximumData))
return b, nil
}
// Length of a written frame
func (f *MaxDataFrame) Length(_ protocol.Version) protocol.ByteCount {
return 1 + protocol.ByteCount(quicvarint.Len(uint64(f.MaximumData)))
}
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