59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package wire
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import (
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"bytes"
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"github.com/lucas-clemente/quic-go/internal/protocol"
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"github.com/lucas-clemente/quic-go/internal/qerr"
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"github.com/lucas-clemente/quic-go/quicvarint"
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)
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// A ResetStreamFrame is a RESET_STREAM frame in QUIC
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type ResetStreamFrame struct {
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StreamID protocol.StreamID
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ErrorCode qerr.StreamErrorCode
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FinalSize protocol.ByteCount
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}
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func parseResetStreamFrame(r *bytes.Reader, _ protocol.VersionNumber) (*ResetStreamFrame, error) {
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if _, err := r.ReadByte(); err != nil { // read the TypeByte
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return nil, err
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}
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var streamID protocol.StreamID
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var byteOffset protocol.ByteCount
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sid, err := quicvarint.Read(r)
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if err != nil {
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return nil, err
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}
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streamID = protocol.StreamID(sid)
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errorCode, err := quicvarint.Read(r)
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if err != nil {
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return nil, err
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}
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bo, err := quicvarint.Read(r)
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if err != nil {
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return nil, err
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}
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byteOffset = protocol.ByteCount(bo)
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return &ResetStreamFrame{
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StreamID: streamID,
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ErrorCode: qerr.StreamErrorCode(errorCode),
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FinalSize: byteOffset,
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}, nil
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}
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func (f *ResetStreamFrame) Write(b *bytes.Buffer, _ protocol.VersionNumber) error {
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b.WriteByte(0x4)
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quicvarint.Write(b, uint64(f.StreamID))
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quicvarint.Write(b, uint64(f.ErrorCode))
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quicvarint.Write(b, uint64(f.FinalSize))
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return nil
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}
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// Length of a written frame
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func (f *ResetStreamFrame) Length(version protocol.VersionNumber) protocol.ByteCount {
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return 1 + quicvarint.Len(uint64(f.StreamID)) + quicvarint.Len(uint64(f.ErrorCode)) + quicvarint.Len(uint64(f.FinalSize))
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}
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