42 lines
940 B
Go
42 lines
940 B
Go
package packets
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import (
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"fmt"
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"io"
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)
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// UnsubackPacket is an internal representation of the fields of the
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// Unsuback MQTT packet
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type UnsubackPacket struct {
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FixedHeader
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MessageID uint16
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}
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func (ua *UnsubackPacket) String() string {
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return fmt.Sprintf("%s MessageID: %d", ua.FixedHeader, ua.MessageID)
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}
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func (ua *UnsubackPacket) Write(w io.Writer) error {
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var err error
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ua.FixedHeader.RemainingLength = 2
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packet := ua.FixedHeader.pack()
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packet.Write(encodeUint16(ua.MessageID))
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_, err = packet.WriteTo(w)
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return err
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}
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// Unpack decodes the details of a ControlPacket after the fixed
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// header has been read
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func (ua *UnsubackPacket) Unpack(b io.Reader) error {
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var err error
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ua.MessageID, err = decodeUint16(b)
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return err
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}
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// Details returns a Details struct containing the Qos and
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// MessageID of this ControlPacket
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func (ua *UnsubackPacket) Details() Details {
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return Details{Qos: 0, MessageID: ua.MessageID}
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}
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