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package wire
import (
"bytes"
"github.com/lucas-clemente/quic-go/internal/protocol"
"github.com/lucas-clemente/quic-go/internal/utils"
)
// A StopSendingFrame is a STOP_SENDING frame
type StopSendingFrame struct {
StreamID protocol.StreamID
ErrorCode protocol.ApplicationErrorCode
}
// 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 := utils.ReadVarInt(r)
if err != nil {
return nil, err
}
errorCode, err := utils.BigEndian.ReadUint16(r)
if err != nil {
return nil, err
}
return &StopSendingFrame{
StreamID: protocol.StreamID(streamID),
ErrorCode: protocol.ApplicationErrorCode(errorCode),
}, nil
}
// Length of a written frame
func (f *StopSendingFrame) Length(_ protocol.VersionNumber) protocol.ByteCount {
return 1 + utils.VarIntLen(uint64(f.StreamID)) + 2
}
func (f *StopSendingFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error {
b.WriteByte(0x5)
utils.WriteVarInt(b, uint64(f.StreamID))
utils.BigEndian.WriteUint16(b, uint16(f.ErrorCode))
return nil
}
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