/// <summary>
/// Sends a CID packet to the device.
/// </summary>
/// <param name="packet">The packet to send.</param>
public void SendPacket(CidPacket packet)
{
m_baseStream.Write(new byte[] { 0x02 }, 0, 1);
m_baseStream.Write(packet.Command, 0, packet.Command.Length);
int fcs = 0;
for (int i = 0; i < packet.Command.Length; i++)
{
fcs = fcs ^ packet.Command[i];
}
byte len = 0;
if (packet.Body != null && packet.Body.Length > 0)
{
len = (byte)packet.Body.Length;
fcs = fcs ^ len;
m_baseStream.Write(new byte[] { len }, 0, 1);
m_baseStream.Write(packet.Body, 0, packet.Body.Length);
for (int i = 0; i < packet.Body.Length; i++)
{
fcs = fcs ^ packet.Body[i];
}
}
else
{
m_baseStream.Write(new byte[] { 0x00 }, 0, 1);
}
fcs = 0xFF;
m_baseStream.Write(new byte[] { (byte)fcs }, 0, 1);
System.Diagnostics.Debug.WriteLine("Sending CMD: 0x{0}\tPAYLOAD: [{1}]",
string.Join("", (from c in packet.Command select c.ToString("X2"))),
packet.Body == null ? "<EMPTY>" : string.Join(",", (from c in packet.Body select c.ToString("X2"))));
}
public Task <T> SendPacketAndReceiveAsync <T>(CidPacket packet, int timeout = 60) where T : ZigbeeCommand
{
TaskCompletionSource <T> tcs = new TaskCompletionSource <T>();
EventHandler <ZigbeeCommand> handler = null;
handler = (s, e) =>
{
if (e.GetType() == typeof(T))
{
ResponseReceived -= handler;
tcs.SetResult((T)e);
}
};
Task.Delay(timeout * 1000).ContinueWith(_ =>
{
if (!tcs.Task.IsCompleted && !tcs.Task.IsCanceled)
{
ResponseReceived -= handler;
tcs.SetException(new TimeoutException());
}
;
});
ResponseReceived += handler;
SendPacket(packet);
return(tcs.Task);
}