/// <summary>
/// Unsubscribes from information earlier subscribed to. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics</param>
/// <returns>Packet identifier assigned to unsubscription.</returns>
public async Task <ushort> UNSUBSCRIBE(params string[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
foreach (string Topic in Topics)
{
Payload.WriteString(Topic);
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.UNSUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
if (this.HasSniffers)
{
StringBuilder sb = new StringBuilder();
bool First = true;
sb.Append("UNSUBSCRIBE(");
foreach (string Topic in Topics)
{
if (First)
{
First = false;
}
else
{
sb.Append(", ");
}
sb.Append(Topic);
}
sb.Append(')');
this.Information(sb.ToString());
}
await this.Write(PacketData, PacketIdentifier, null);
return(PacketIdentifier);
}
/// <summary>
/// Unsubscribes from information earlier subscribed to. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics</param>
/// <returns>Packet identifier assigned to unsubscription.</returns>
public async Task <ushort> UNSUBSCRIBE(params string[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
foreach (string Topic in Topics)
{
Payload.WriteString(Topic);
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.UNSUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
await this.Write(PacketData, PacketIdentifier, null);
return(PacketIdentifier);
}
private async Task <ushort> PUBLISH(string Topic, MqttQualityOfService QoS, bool Retain, bool Duplicate, byte[] Data)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
Payload.WriteString(Topic);
if (QoS > MqttQualityOfService.AtMostOnce)
{
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
}
else
{
PacketIdentifier = 0;
}
Payload.WriteBytes(Data);
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.PUBLISH << 4);
if (Duplicate)
{
b |= 8;
}
b |= (byte)((int)QoS << 1);
if (Retain)
{
b |= 1;
}
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
if (this.HasSniffers)
{
this.Information("PUBLISH(" + QoS.ToString() + ":" + Topic + ")");
}
await this.Write(PacketData, PacketIdentifier, null);
return(PacketIdentifier);
}
private Task PUBCOMP(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PUBCOMP << 4);
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
return(this.Write(PacketData, 0, null));
}
private void PUBREL(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)(((int)MqttControlPacketType.PUBREL << 4) | 2));
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier, null);
}
private void PUBREC(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PUBREC << 4);
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
this.Write(PacketData, 0, null);
}
private ushort PUBLISH(string Topic, MqttQualityOfService QoS, bool Retain, bool Duplicate, byte[] Data)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
Payload.WriteString(Topic);
if (QoS > MqttQualityOfService.AtMostOnce)
{
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
}
else
{
PacketIdentifier = 0;
}
Payload.WriteBytes(Data);
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.PUBLISH << 4);
if (Duplicate)
{
b |= 8;
}
b |= (byte)((int)QoS << 1);
if (Retain)
{
b |= 1;
}
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
this.BeginWrite(PacketData, PacketIdentifier, null);
return(PacketIdentifier);
}
private Task PUBCOMP(ushort PacketIdentifier)
{
BinaryOutput Packet = new BinaryOutput();
Packet.WriteByte((byte)MqttControlPacketType.PUBCOMP << 4);
Packet.WriteUInt(2);
Packet.WriteUInt16(PacketIdentifier);
byte[] PacketData = Packet.GetPacket();
if (this.HasSniffers)
{
this.Information("PUBCOMP");
}
return(this.Write(PacketData, 0, null));
}
/// <summary>
/// Subscribes to information from a set of topics. Topics can include wildcards.
/// </summary>
/// <param name="Topics">Topics together with Quality of Service levels for each topic.</param>
/// <returns>Packet identifier assigned to subscription.</returns>
public async Task <ushort> SUBSCRIBE(params KeyValuePair <string, MqttQualityOfService>[] Topics)
{
BinaryOutput Payload = new BinaryOutput();
ushort PacketIdentifier;
PacketIdentifier = this.packetIdentifier++;
if (PacketIdentifier == 0)
{
PacketIdentifier = this.packetIdentifier++;
}
Payload.WriteUInt16(PacketIdentifier);
foreach (KeyValuePair <string, MqttQualityOfService> Pair in Topics)
{
Payload.WriteString(Pair.Key);
Payload.WriteByte((byte)Pair.Value);
}
byte[] PayloadData = Payload.GetPacket();
BinaryOutput Packet = new BinaryOutput();
byte b = (byte)((int)MqttControlPacketType.SUBSCRIBE << 4);
b |= 2;
Packet.WriteByte(b);
Packet.WriteUInt((uint)PayloadData.Length);
Packet.WriteBytes(PayloadData);
byte[] PacketData = Packet.GetPacket();
await this.Write(PacketData, PacketIdentifier, null);
return(PacketIdentifier);
}