/// <summary>
/// Discover devices in LAN
/// </summary>
/// <returns></returns>
public static async IAsyncEnumerable <Device> DiscoverAndEnumerateAsync(CancellationToken?cancel = null)
{
List <Task <IEnumerable <Device> > > tasks = NetworkInterface.GetAllNetworkInterfaces()
.Where(networkInterface => networkInterface.OperationalStatus == OperationalStatus.Up)
.Select(networkInterface => DeviceLocator.DiscoverAsync(networkInterface, deviceFoundReporter: null)).ToList();
Dictionary <string, Device> allUniqueDevices = new Dictionary <string, Device>();
while (tasks.Count != 0)
{
Task <IEnumerable <Device> > completedTask = await Task.WhenAny(tasks);
tasks.Remove(completedTask);
IEnumerable <Device> devices = await completedTask;
foreach (Device device in devices)
{
if (!allUniqueDevices.ContainsKey(device.Hostname))
{
allUniqueDevices.Add(device.Hostname, device);
yield return(device);
}
}
if (cancel.HasValue && cancel.Value.IsCancellationRequested)
{
break;
}
}
}
/// <summary> /// Discover devices in a specific Network Interface /// </summary> /// <param name="networkInterface"></param> /// <returns></returns> public static async Task <IEnumerable <Device> > DiscoverAsync(NetworkInterface networkInterface) => await DeviceLocator.DiscoverAsync(networkInterface, null);
/// <summary>
/// Discover devices in LAN
/// </summary>
/// <returns></returns>
public static async Task <IEnumerable <Device> > DiscoverAsync(IProgress <Device> deviceFoundReporter)
{
IEnumerable <Task <IEnumerable <Device> > > tasks = NetworkInterface.GetAllNetworkInterfaces()
.Where(networkInterface => networkInterface.OperationalStatus == OperationalStatus.Up)
.Select(networkInterface => DeviceLocator.DiscoverAsync(networkInterface, deviceFoundReporter));
IEnumerable <Device>[] result = await Task.WhenAll(tasks);
return(result
.SelectMany(devices => devices)
.GroupBy(d => d.Hostname)
.Select(g => g.First())
.ToList());
}
/// <summary> /// Discover devices in LAN /// </summary> /// <returns></returns> public static async Task <IEnumerable <Device> > DiscoverAsync() => await DeviceLocator.DiscoverAsync(deviceFoundReporter : null);