46 lines
1.1 KiB
Go
46 lines
1.1 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/utils"
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)
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// A BlockedFrame is a BLOCKED frame
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type BlockedFrame struct {
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Offset protocol.ByteCount
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}
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// ParseBlockedFrame parses a BLOCKED frame
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func ParseBlockedFrame(r *bytes.Reader, _ protocol.VersionNumber) (*BlockedFrame, error) {
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if _, err := r.ReadByte(); err != nil {
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return nil, err
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}
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offset, err := utils.ReadVarInt(r)
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if err != nil {
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return nil, err
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}
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return &BlockedFrame{
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Offset: protocol.ByteCount(offset),
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}, nil
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}
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func (f *BlockedFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error {
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if !version.UsesIETFFrameFormat() {
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return (&blockedFrameLegacy{}).Write(b, version)
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}
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typeByte := uint8(0x08)
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b.WriteByte(typeByte)
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utils.WriteVarInt(b, uint64(f.Offset))
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return nil
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}
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// MinLength of a written frame
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func (f *BlockedFrame) MinLength(version protocol.VersionNumber) protocol.ByteCount {
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if !version.UsesIETFFrameFormat() {
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return 1 + 4
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}
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return 1 + utils.VarIntLen(uint64(f.Offset))
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}
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