/// start the session
public void StartSession()
{
FTasksManager = new TClientTasksManager();
FPollClientTasks = new TPollClientTasks(FTasksManager);
FClientConnectionStartTime = DateTime.Now;
SessionStatus = TSessionStatus.adsActive;
FClientConnectionFinishedTime = DateTime.Now;
}
/// start the session
public void StartSession(TDelegateTearDownAppDomain ATearDownAppDomain)
{
FTasksManager = new TClientTasksManager();
FPollClientTasks = new TPollClientTasks(FTasksManager);
FClientConnectionStartTime = DateTime.Now;
// Start ClientStillAliveCheck Thread
new ClientStillAliveCheck.TClientStillAliveCheck(this, FClientServerConnectionType, ATearDownAppDomain);
SessionStatus = TSessionStatus.adsActive;
FClientConnectionFinishedTime = DateTime.Now;
}
/// start the session
public void StartSession(TDelegateTearDownAppDomain ATearDownAppDomain)
{
FTasksManager = new TClientTasksManager();
FPollClientTasks = new TPollClientTasks(FTasksManager);
FClientConnectionStartTime = DateTime.Now;
// Start ClientStillAliveCheck Thread
new ClientStillAliveCheck.TClientStillAliveCheck(this, FClientServerConnectionType, ATearDownAppDomain);
SessionStatus = TSessionStatus.adsActive;
FClientConnectionFinishedTime = DateTime.Now;
}
/**
* Thread that checks in regular intervals whether the Date and Time when the
* last Client call to 'PollClientTasks' was made exceeds a certain timeout
* limit (different for Clients connected via LAN or Remote).
*
* @comment The Thread is started at Class instantiation and can be stopped by
* calling the StopClientStillAliveCheckThread method.
*
* @comment The check interval can be configured with the ServerSetting
* 'Server.ClientKeepAliveCheckIntervalInSeconds'.
*
*/
public void ClientStillAliveCheckThread()
{
TimeSpan Duration;
DateTime LastPollingTime;
// Check whether this Thread should still execute
while (UKeepServerAliveCheck)
{
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: checking...", DateTime.Now);
}
// Get the time of the last call to TPollClientTasks.PollClientTasks
LastPollingTime = TPollClientTasks.GetLastPollingTime();
// Calculate time between the last call to TPollClientTasks.PollClientTasks and now
Duration = DateTime.Now.Subtract(LastPollingTime);
// Determine whether the timeout has been exceeded
if (Duration.TotalSeconds < UClientStillAliveTimeout)
{
// No it hasn't
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: timeout hasn't been exceeded.", DateTime.Now);
}
try
{
// Sleep for some time. After that, this procedure is called again automatically.
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: going to sleep...", DateTime.Now);
}
Thread.Sleep(UClientStillAliveCheckInterval * 1000);
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: re-awakening...", DateTime.Now);
}
}
catch (ThreadAbortException)
{
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: ThreadAbortException occured!!!",
DateTime.Now);
}
UKeepServerAliveCheck = false;
}
}
else
{
if (TLogging.DL >= 5)
{
Console.WriteLine(
"{0} TClientStillAliveCheck: ClientStillAliveCheckThread: timeout HAS been exceeded (last PollClientTasks call: " +
LastPollingTime.ToString() + ") -> SignalTearDownAppDomain!",
DateTime.Now);
}
/*
* Timeout has been exceeded, this means the Client didn't make a call
* to TPollClientTasks.PollClientTasks within the time that is specified
* in UClientStillAliveTimeout
*/
/*
* KeepServerAliveCheck Thread should no longer run (has an effect only
* when this procedure is called from the ClientStillAliveCheckThread
* Thread itself)
*/
UKeepServerAliveCheck = false;
if (UTearDownAppDomain != null)
{
UTearDownAppDomain(UTearDownAppDomainToken,
String.Format(StrClientFailedToContact, Duration.Hours.ToString() + ':' + Duration.Minutes.ToString() + ':' +
Duration.Seconds.ToString()));
}
else
{
if (TLogging.DL >= 10)
{
Console.WriteLine(
"{0} TClientStillAliveCheck: FTearDownAppDomain was not assigned -> can't tear down Client's AppDomain!",
DateTime.Now);
}
}
}
}
// Thread stops here and doesn't get called again automatically.
if (TLogging.DL >= 10)
{
Console.WriteLine("{0} TClientStillAliveCheck: ClientStillAliveCheckThread: Thread stopped!", DateTime.Now);
}
}
