/// <summary>
/// A public constructor for the SsdpBrowser class to create a SsdpBrowser instance for the given target.
/// </summary>
/// <since_tizen> 4 </since_tizen>
/// <param name="target">The target to browse for the service.</param>
/// <feature>http://tizen.org/feature/network.service_discovery.ssdp</feature>
/// <exception cref="ArgumentException">Thrown when the target is null.</exception>
/// <exception cref="NotSupportedException">Thrown when SSDP is not supported.</exception>
public SsdpBrowser(string target)
{
SsdpInitializer ssdpInit = Globals.s_threadSsd.Value;
Log.Info(Globals.LogTag, "Initialize ThreadLocal<SsdpInitializer> instance = " + ssdpInit);
if (target == null)
{
Log.Debug(Globals.LogTag, "target is null");
NsdErrorFactory.ThrowSsdpException((int)SsdpError.InvalidParameter);
}
_target = target;
}
internal void SsdpInitializeCreateService()
{
SsdpInitializer ssdpInit = Globals.s_threadSsd.Value;
Log.Info(Globals.LogTag, "Initialize ThreadLocal<SsdpInitializer> instance = " + ssdpInit);
int ret = Interop.Nsd.Ssdp.CreateService(_target, out _serviceHandle);
if (ret != (int)SsdpError.None)
{
Log.Error(Globals.LogTag, "Failed to create a local Ssdp service handle, Error - " + (SsdpError)ret);
NsdErrorFactory.ThrowSsdpException(ret);
}
}
/// <summary>
/// Starts browsing the SSDP remote service.
/// </summary>
/// <remarks>
/// If there are any services available, the ServiceFound event will be invoked.
/// The application will keep browsing for the available or unavailable services until it calls StopDiscovery().
/// </remarks>
/// <since_tizen> 4 </since_tizen>
/// <feature>http://tizen.org/feature/network.service_discovery.ssdp</feature>
/// <exception cref="InvalidOperationException">Thrown when any other error occured.</exception>
/// <exception cref="NotSupportedException">Thrown when SSDP is not supported.</exception>
public void StartDiscovery()
{
SsdpInitializer ssdpInit = Globals.s_threadSsd.Value;
Log.Info(Globals.LogTag, "Initialize ThreadLocal<SsdpInitializer> instance = " + ssdpInit);
_serviceFoundCallback = (SsdpServiceState state, uint service, IntPtr userData) =>
{
if (_serviceFound != null)
{
Log.Info(Globals.LogTag, "Inside Service found callback");
SsdpService ssdpService = new SsdpService(service);
_serviceFound(null, new SsdpServiceFoundEventArgs(state, ssdpService));
}
};
int ret = Interop.Nsd.Ssdp.StartBrowsing(_target, out _browserHandle, _serviceFoundCallback, IntPtr.Zero);
if (ret != (int)SsdpError.None)
{
Log.Error(Globals.LogTag, "Failed to discover Ssdp remote service, Error - " + (SsdpError)ret);
NsdErrorFactory.ThrowSsdpException(ret);
}
}