public uint GetNextFCntDown(string devEUI, string gatewayId, uint clientFCntUp, uint clientFCntDown)
{
uint newFCntDown = 0;
using (var deviceCache = new LoRaDeviceCache(this.deviceCache, devEUI, gatewayId))
{
if (deviceCache.TryToLock())
{
if (deviceCache.TryGetInfo(out DeviceCacheInfo serverStateForDeviceInfo))
{
newFCntDown = ProcessExistingDeviceInfo(deviceCache, serverStateForDeviceInfo, gatewayId, clientFCntUp, clientFCntDown);
}
else
{
var state = deviceCache.Initialize(clientFCntUp, clientFCntDown + 1);
newFCntDown = state.FCntDown;
}
}
}
return(newFCntDown);
}
public async Task <uint> GetNextFCntDownAsync(DevEui devEUI, string gatewayId, uint clientFCntUp, uint clientFCntDown)
{
uint newFCntDown = 0;
using (var deviceCache = new LoRaDeviceCache(this.deviceCache, devEUI, gatewayId))
{
if (await deviceCache.TryToLockAsync())
{
if (deviceCache.TryGetInfo(out var serverStateForDeviceInfo))
{
newFCntDown = ProcessExistingDeviceInfo(deviceCache, serverStateForDeviceInfo, gatewayId, clientFCntUp, clientFCntDown);
}
else
{
newFCntDown = clientFCntDown + 1;
var state = deviceCache.Initialize(clientFCntUp, newFCntDown);
}
}
}
return(newFCntDown);
}