public override string ToString()
{
return(string.Format("{0}:{1}-p({2},{3})-r({4},{5}), {6}s",
DeviceEntity.roomid, DeviceEntity.ip,
PollingCount, LastPollingTime.ToString("mmssffff"),
ResponseCount, LastResponseTime.ToString("mmssffff"),
(DateTime.Now - LastPollingTime).TotalSeconds));
}
/**
* 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)
{
TLogging.LogAtLevel(2, "TClientStillAliveCheck (for ClientName '" + ClientName + "'): ClientStillAliveCheckThread: checking...");
// Get the time of the last call to TPollClientTasks.PollClientTasks
LastPollingTime = FClientObject.FPollClientTasks.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
TLogging.LogAtLevel(
2,
"TClientStillAliveCheck (for ClientName '" + ClientName +
"'): ClientStillAliveCheckThread: timeout hasn't been exceeded (Clients' last PollClientTasks was called " +
Duration.TotalSeconds.ToString() + " ago).");
try
{
// Sleep for some time. After that, this procedure is called again automatically.
TLogging.LogAtLevel(2,
"TClientStillAliveCheck (for ClientName '" + ClientName + "'): ClientStillAliveCheckThread: going to sleep...");
Thread.Sleep(UClientStillAliveCheckInterval * 1000);
TLogging.LogAtLevel(12,
"TClientStillAliveCheck (for ClientName '" + ClientName + "'): ClientStillAliveCheckThread: re-awakening...");
}
catch (ThreadAbortException)
{
TLogging.LogAtLevel(
2,
"TClientStillAliveCheck (for ClientName '" + ClientName +
"'): ClientStillAliveCheckThread: ThreadAbortException occured!!!");
UKeepServerAliveCheck = false;
}
}
else
{
TLogging.LogAtLevel(
1,
"TClientStillAliveCheck (for ClientName '" + ClientName +
"'): ClientStillAliveCheckThread: timeout HAS been exceeded (last PollClientTasks call: " +
LastPollingTime.ToString() + ") -> forcefully disconnecting the Client!");
/*
* 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;
// Forcefully disconnect the Client!
if (UTearDownAppDomain != null)
{
string CantDisconnectReason;
UTearDownAppDomain(FClientObject.ClientID,
String.Format(StrClientFailedToContact, Duration.Hours.ToString() + ':' + Duration.Minutes.ToString() + ':' +
Duration.Seconds.ToString()), out CantDisconnectReason);
}
else
{
if (TLogging.DL >= 10)
{
TLogging.Log("TClientStillAliveCheck: FTearDownAppDomain was not assigned -> can't tear down Client's AppDomain!");
}
}
}
}
// Thread stops here and doesn't get called again automatically.
TLogging.LogAtLevel(12, "TClientStillAliveCheck (for ClientName '" + ClientName + "'): ClientStillAliveCheckThread: Thread stopped!");
}
/**
* 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);
}
}
