protected override async Task SearchAsync(IPAddress gatewayAddress, TimeSpan?repeatInterval, CancellationToken token)
{
var buffer = gatewayAddress == null?DiscoverDeviceMessage.EncodeSSDP() : DiscoverDeviceMessage.EncodeUnicast(gatewayAddress);
do
{
await Clients.SendAsync(buffer, gatewayAddress, token);
if (!repeatInterval.HasValue)
{
break;
}
await Task.Delay(repeatInterval.Value, token);
} while (true);
}
protected override async Task SearchAsync(IPAddress gatewayAddress, TimeSpan?repeatInterval, CancellationToken token)
{
var messages = gatewayAddress == null?DiscoverDeviceMessage.EncodeSSDP() : DiscoverDeviceMessage.EncodeUnicast(gatewayAddress);
do
{
foreach (var message in messages)
{
await Clients.SendAsync(message, gatewayAddress, token).ConfigureAwait(false);
}
if (!repeatInterval.HasValue)
{
break;
}
await Task.Delay(repeatInterval.Value, token).ConfigureAwait(false);
} while (true);
}
protected override async void SearchAsync(IPAddress gatewayAddress, TimeSpan?repeatInterval, CancellationToken token)
{
var messages = gatewayAddress == null?DiscoverDeviceMessage.EncodeSSDP() : DiscoverDeviceMessage.EncodeUnicast(gatewayAddress);
while (!token.IsCancellationRequested)
{
try {
foreach (var message in messages)
{
await Clients.SendAsync(message, gatewayAddress, token).ConfigureAwait(false);
}
if (!repeatInterval.HasValue)
{
break;
}
await Task.Delay(repeatInterval.Value, token).ConfigureAwait(false);
} catch (OperationCanceledException) {
break;
} catch (Exception ex) {
Log.Exception(ex, "Unhandled exception searching for a upnp device");
}
}
}