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36 lines
1 KiB
Go
36 lines
1 KiB
Go
package utils
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import (
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"bytes"
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"io"
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"github.com/lucas-clemente/quic-go/internal/protocol"
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)
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// A ByteOrder specifies how to convert byte sequences into 16-, 32-, or 64-bit unsigned integers.
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type ByteOrder interface {
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ReadUintN(b io.ByteReader, length uint8) (uint64, error)
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ReadUint64(io.ByteReader) (uint64, error)
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ReadUint32(io.ByteReader) (uint32, error)
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ReadUint16(io.ByteReader) (uint16, error)
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WriteUint64(*bytes.Buffer, uint64)
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WriteUint56(*bytes.Buffer, uint64)
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WriteUint48(*bytes.Buffer, uint64)
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WriteUint40(*bytes.Buffer, uint64)
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WriteUint32(*bytes.Buffer, uint32)
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WriteUint24(*bytes.Buffer, uint32)
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WriteUint16(*bytes.Buffer, uint16)
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ReadUfloat16(io.ByteReader) (uint64, error)
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WriteUfloat16(*bytes.Buffer, uint64)
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}
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// GetByteOrder gets the ByteOrder (little endian or big endian) used to represent values on the wire
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// from QUIC 39, values are encoded in big endian, before that in little endian
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func GetByteOrder(v protocol.VersionNumber) ByteOrder {
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if v < protocol.Version39 {
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return LittleEndian
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}
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return BigEndian
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}
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