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stop_sending_frame.go
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/
stop_sending_frame.go
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package wire
import (
"bytes"
"github.com/btwiuse/quic/internal/protocol"
"github.com/btwiuse/quic/internal/qerr"
"github.com/btwiuse/quic/quicvarint"
)
// A StopSendingFrame is a STOP_SENDING frame
type StopSendingFrame struct {
StreamID protocol.StreamID
ErrorCode qerr.StreamErrorCode
}
// parseStopSendingFrame parses a STOP_SENDING frame
func parseStopSendingFrame(r *bytes.Reader, _ protocol.VersionNumber) (*StopSendingFrame, error) {
if _, err := r.ReadByte(); err != nil {
return nil, err
}
streamID, err := quicvarint.Read(r)
if err != nil {
return nil, err
}
errorCode, err := quicvarint.Read(r)
if err != nil {
return nil, err
}
return &StopSendingFrame{
StreamID: protocol.StreamID(streamID),
ErrorCode: qerr.StreamErrorCode(errorCode),
}, nil
}
// Length of a written frame
func (f *StopSendingFrame) Length(_ protocol.VersionNumber) protocol.ByteCount {
return 1 + quicvarint.Len(uint64(f.StreamID)) + quicvarint.Len(uint64(f.ErrorCode))
}
func (f *StopSendingFrame) Append(b []byte, _ protocol.VersionNumber) ([]byte, error) {
b = append(b, 0x5)
b = quicvarint.Append(b, uint64(f.StreamID))
b = quicvarint.Append(b, uint64(f.ErrorCode))
return b, nil
}