/// <summary>
/// Handles the ServiceFound event of the agent control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Acn.Slp.ServiceFoundEventArgs"/> instance containing the event data.</param>
void agent_ServiceFound(object sender, ServiceFoundEventArgs e)
{
foreach (UrlEntry url in e.Urls)
{
bool newDevice = false;
SlpDeviceInformation device;
lock (devicesLock)
{
if (!devices.TryGetValue(url.Url, out device))
{
device = new SlpDeviceInformation()
{
Url = url.Url, FirstUpdateId = e.RequestId
};
devices[url.Url] = device;
}
device.Endpoint = e.Address;
device.DiscoveryAgents.Add(sender as SlpUserAgent);
device.UpdateRecieved(e.RequestId);
}
RequestAttributes(device);
if (newDevice)
{
OnDeviceStateChange(device);
}
}
OnDevicesUpdated();
}
/// <summary>
/// Called when a device state changes.
/// </summary>
/// <param name="device">The device.</param>
protected virtual void OnDeviceStateChange(SlpDeviceInformation device)
{
if (DeviceStateChange != null)
{
DeviceStateChange(this, new SlpDeviceEventArgs()
{
Device = device
});
}
}
/// <summary>
/// Requests the attributes for a device.
/// </summary>
/// <param name="device">The device.</param>
private void RequestAttributes(SlpDeviceInformation device)
{
if (FetchAttributes && device.DiscoveryAgents.Count > 0)
{
SlpUserAgent agent = device.DiscoveryAgents.First();
int requestId = agent.RequestAttributes(device.Endpoint, device.Url);
lock (attributeRequestLog)
{
attributeRequestLog[new UserAgentRequest(agent, requestId)] = device;
}
}
}