public static async Task TryToGetLanListAsync(ItemAddCallback <ServerInformation> foundCallback, IProgress <AsyncProgressEntry> progress = null,
CancellationToken cancellation = default(CancellationToken))
{
var holder = progress == null ? null : new Progress();
DispatcherTimer timer = null;
try {
if (holder != null)
{
timer = new DispatcherTimer(DispatcherPriority.Background, Application.Current?.Dispatcher ?? Dispatcher.CurrentDispatcher)
{
Interval = TimeSpan.FromSeconds(0.1),
IsEnabled = true
};
timer.Tick += (sender, args) => {
progress.Report(new AsyncProgressEntry($"Scanned {holder.Current} of {holder.Total}", holder.Current, holder.Total));
};
}
await Task.Run(() => {
TryToGetLanList(foundCallback, SettingsHolder.Online.LanPortsEnumeration.ToPortsDiapason(), holder, cancellation);
}, cancellation);
} finally {
if (holder != null && timer != null)
{
timer.IsEnabled = false;
}
}
}
public async Task <bool> LoadAsync(ItemAddCallback <ServerInformation> callback, IProgress <AsyncProgressEntry> progress, CancellationToken cancellation)
{
Logging.Here();
await KunosApiProvider.TryToGetLanListAsync(callback, progress, cancellation);
return(!cancellation.IsCancellationRequested);
}
private static void TryToGetLanList(ItemAddCallback <ServerInformation> foundCallback, IEnumerable <int> ports, [CanBeNull] Progress progress,
CancellationToken cancellation)
{
var addresses = GetBroadcastAddresses().ToList();
// ReSharper disable PossibleMultipleEnumeration
if (progress != null)
{
progress.Total = ports.Count() * addresses.Count;
progress.Current = 0;
}
var entries = addresses.SelectMany(x => ports.Select(y => new {
BroadcastIp = x,
Port = y
}));
// ReSharper enable PossibleMultipleEnumeration
try {
Parallel.ForEach(entries, new ParallelOptions {
CancellationToken = cancellation,
MaxDegreeOfParallelism = (Environment.ProcessorCount - 1).Clamp(1, 4)
}, (entry, ipLoopState) => {
cancellation.ThrowIfCancellationRequested();
var found = BroadcastPing(entry.BroadcastIp, entry.Port);
if (found != null)
{
try {
var information = TryToGetInformationDirect(found.Ip, found.Port);
if (information == null)
{
return;
}
information.IsLan = true;
ActionExtension.InvokeInMainThreadAsync(() => foundCallback(information));
} catch (Exception e) {
Logging.Warning(e);
}
}
if (progress != null)
{
Interlocked.Increment(ref progress.Current);
}
});
} catch (Exception e) when(e.IsCancelled())
{
}
}
public static void TryToGetLanList(ItemAddCallback <ServerInformation> foundCallback)
{
TryToGetLanList(foundCallback, SettingsHolder.Online.LanPortsEnumeration.ToPortsDiapason(), null, default(CancellationToken));
}
public static void TryToGetLanList(ItemAddCallback <ServerInformation> foundCallback, IEnumerable <int> ports)
{
TryToGetLanList(foundCallback, ports, null, default(CancellationToken));
}
public static void TryToGetLanList(ItemAddCallback <ServerInformation> foundCallback)
{
TryToGetLanList(foundCallback, PortsDiapason.Create(SettingsHolder.Online.LanPortsEnumeration), null, default);
}
