public CSearchUDP()
{
m_SockUDP = new RoutinesLibrary.Net.Protocols.UDP.UDP(SearcherServicesData.PORT_STATION_DISCOVERY);
m_SockUDP.DataReceived += new RoutinesLibrary.Net.Protocols.UDP.UDP.DataReceivedEventHandler(m_SockUDP_DataReceived);
m_Timer = new System.Timers.Timer();
m_Timer.Elapsed += m_Timer_Elapsed;
m_Timer.AutoReset = false; // se debe activar de nuevo al salir del evento Elapsed
m_Timer.Stop();
m_StationHashTable = new CStationHashtableUDP();
ChangeTable = false;
}
/// <summary>
/// Class constructor. Wait to receive requests to respond to searches
/// </summary>
/// <param name="messageRequest">Request message</param>
/// <param name="messageResponse">Response message</param>
/// <param name="port">Port to wait searches</param>
/// <param name="localIPAdress">Local IP address to response</param>
public DiscoveryUDPHost(string messageRequest, string messageResponse, ushort port, string localIPAdress = "")
{
//Configuration search
m_MessageRequest = messageRequest;
m_MessageResponse = messageResponse;
m_Port = port;
m_LocalIPAddress = localIPAdress;
//UDP socket
m_SockUDP = new RoutinesLibrary.Net.Protocols.UDP.UDP(m_Port);
m_SockUDP.DataReceived += new RoutinesLibrary.Net.Protocols.UDP.UDP.DataReceivedEventHandler(this.SockUDP_DataReceived);
m_SockUDP.Activate();
}
/// <summary>
/// Class constructor. Starts searches automatically
/// </summary>
/// <param name="messageRequest">Request message</param>
/// <param name="messageResponse">Response message</param>
/// <param name="port">Port to perform searches</param>
/// <param name="discoverInterval">Time interval to perform searches</param>
public DiscoveryUDPClient(string messageRequest, string messageResponse, ushort port, int discoverInterval = 3000)
{
//Configuration search
m_MessageRequest = messageRequest;
m_MessageResponse = messageResponse;
m_Port = port;
m_DiscoverInterval = discoverInterval;
//UDP socket
m_SockUDP = new RoutinesLibrary.Net.Protocols.UDP.UDP(RoutinesLibrary.Net.InformationNetworkInterface.GetPortAvailable());
//m_SockUDP.DataReceived += new System.EventHandler(this.SockUDP_DataReceived);
m_SockUDP.DataReceived += new RoutinesLibrary.Net.Protocols.UDP.UDP.DataReceivedEventHandler(SockUDP_DataReceived);
m_SockUDP.Activate();
//Search
m_ThreadSearch = new Thread(new System.Threading.ThreadStart(Process_Discover));
m_ThreadSearch.Name = "Process_Discover_DiscoveryUDPClient";
m_ThreadSearch.Start();
}
/// <summary>
/// Process to perform searches periodically
/// </summary>
/// <remarks></remarks>
private void Process_Discover()
{
while (m_IsAliveThreadSearch)
{
if (m_SeachActive)
{
//get the list of addresses searched
m_semaphoreListDiscoveredServices.WaitOne();
m_ListDiscoveredServices.Clear();
foreach (EndpointAddress ep in m_tempListDiscoveredServices)
{
m_ListDiscoveredServices.Add(ep);
}
m_tempListDiscoveredServices.Clear();
m_semaphoreListDiscoveredServices.Release();
//send discover frame
try
{
m_SockUDP.SendBroadcast(Encoding.ASCII.GetBytes(m_MessageRequest), m_Port);
}
catch (Exception ex)
{
#if DEBUG
throw (new System.Exception(ex.Message));
#endif
}
}
Thread.Sleep(m_DiscoverInterval);
}
m_SockUDP.Dispose();
m_SockUDP = null;
//m_SockUDP.DataReceived += new System.EventHandler(SockUDP_DataReceived);
m_SockUDP.DataReceived -= new RoutinesLibrary.Net.Protocols.UDP.UDP.DataReceivedEventHandler(SockUDP_DataReceived);
}
/// <summary>
/// Release resources
/// </summary>
public void Dispose()
{
m_SockUDP.Dispose();
m_SockUDP = null;
//m_SockUDP.DataReceived -= new RoutinesLibrary.Net.Protocols.UDP.UDP.DataReceivedEventHandler(this.SockUDP_DataReceived);
}
