65 lines
2.0 KiB
C#
65 lines
2.0 KiB
C#
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/*
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M2Mqtt - MQTT Client Library for .Net
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Copyright (c) 2014, Paolo Patierno, All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3.0 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library.
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*/
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namespace uPLibrary.Networking.M2Mqtt.Messages
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{
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/// <summary>
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/// Class for PINGREQ message from client to broker
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/// </summary>
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public class MqttMsgPingReq : MqttMsgBase
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{
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/// <summary>
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/// Constructor
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/// </summary>
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public MqttMsgPingReq()
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{
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this.type = MQTT_MSG_PINGREQ_TYPE;
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}
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public override byte[] GetBytes()
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{
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byte[] buffer = new byte[2];
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int index = 0;
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// first fixed header byte
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buffer[index++] = (MQTT_MSG_PINGREQ_TYPE << MSG_TYPE_OFFSET);
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buffer[index++] = 0x00;
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return buffer;
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}
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/// <summary>
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/// Parse bytes for a PINGREQ message
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/// </summary>
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/// <param name="fixedHeaderFirstByte">First fixed header byte</param>
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/// <param name="channel">Channel connected to the broker</param>
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/// <returns>PINGREQ message instance</returns>
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public static MqttMsgPingReq Parse(byte fixedHeaderFirstByte, IMqttNetworkChannel channel)
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{
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MqttMsgPingReq msg = new MqttMsgPingReq();
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// already know remaininglength is zero (MQTT specification),
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// so it isn't necessary to read other data from socket
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int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
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return msg;
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}
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}
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}
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