// Performs join
public async Task <bool> JoinAsync(SimulatedPacketForwarder packetForwarder, int timeoutInMs = 30 * 1000)
{
if (this.IsJoined)
{
return(true);
}
var token = await RandomTokenGenerator.GetTokenAsync();
this.LastPayload = new PhysicalPayload(token, PhysicalIdentifier.PUSH_DATA, null);
var header = this.LastPayload.GetSyncHeader(packetForwarder.MacAddress);
var joinRequest = this.CreateJoinRequest();
var joinCompleted = new SemaphoreSlim(0);
var joinRequestUplinkMessage = joinRequest.SerializeUplink(this.AppKey);
packetForwarder.SubscribeOnce((response) =>
{
// handle join
var txpk = Txpk.CreateTxpk(response, this.LoRaDevice.AppKey);
byte[] convertedInputMessage = Convert.FromBase64String(txpk.Data);
var joinAccept = new LoRaPayloadJoinAccept(convertedInputMessage, this.AppKey);
var result = this.HandleJoinAccept(joinAccept); // may need to return bool and only release if true.
joinCompleted.Release();
return(result);
});
await packetForwarder.SendAsync(header, joinRequest.GetByteMessage());
TestLogger.Log($"[{this.LoRaDevice.DeviceID}] Join request: {BitConverter.ToString(header).Replace("-", string.Empty)}");
#if DEBUG
if (System.Diagnostics.Debugger.IsAttached)
{
timeoutInMs = 60 * 1000;
}
#endif
return(await joinCompleted.WaitAsync(timeoutInMs));
}
// Sends confirmed message
public async Task SendConfirmedMessageAsync(SimulatedPacketForwarder simulatedPacketForwarder, string payload)
{
var token = await RandomTokenGenerator.GetTokenAsync();
if (this.LastPayload == null)
{
this.LastPayload = new PhysicalPayload(token, PhysicalIdentifier.PUSH_DATA, null);
}
var header = this.LastPayload.GetSyncHeader(simulatedPacketForwarder.MacAddress);
var confirmedMessage = this.CreateConfirmedDataUpMessage(payload);
confirmedMessage.SerializeUplink(this.AppSKey, this.NwkSKey);
this.LastPayload = await simulatedPacketForwarder.SendAsync(header, confirmedMessage.GetByteMessage());
TestLogger.Log($"[{this.LoRaDevice.DeviceID}] Confirmed data: {BitConverter.ToString(header).Replace("-", string.Empty)} {payload}");
// TestLogger.Log($"[{this.LoRaDevice.DevAddr}] Sending data: {BitConverter.ToString(header).Replace("-", "")}{Encoding.UTF8.GetString(gatewayInfo)}");
}