// handlePacket handles the Packet.
func (cli *Client) handlePacket(p packet.Packet) error {
// Get the MQTT Control Packet type.
ptype, err := p.Type()
if err != nil {
return err
}
switch ptype {
case packet.TypeCONNACK:
cli.handleCONNACK()
return nil
case packet.TypePUBLISH:
return cli.handlePUBLISH(p)
case packet.TypePUBACK:
return cli.handlePUBACK(p)
case packet.TypePUBREC:
return cli.handlePUBREC(p)
case packet.TypePUBREL:
return cli.handlePUBREL(p)
case packet.TypePUBCOMP:
return cli.handlePUBCOMP(p)
case packet.TypeSUBACK:
return cli.handleSUBACK(p)
case packet.TypeUNSUBACK:
return cli.handleUNSUBACK(p)
case packet.TypePINGRESP:
return cli.handlePINGRESP()
default:
return packet.ErrInvalidPacketType
}
}
// send sends an MQTT Control Packet to the Server.
func (cli *Client) send(p packet.Packet) error {
// Return an error if the Client has not yet connected to the Server.
if cli.conn == nil {
return ErrNotYetConnected
}
// Write the Packet to the buffered writer.
if _, err := p.WriteTo(cli.conn.w); err != nil {
return err
}
// Flush the buffered writer.
return cli.conn.w.Flush()
}