/// <summary>
/// Threads main function.
/// </summary>
private void Worker()
{
// Create the event-arg-object which will be used in each event.
ThreadHandlerEventArgs evArgs = null;
lock (this)
{
evArgs = new ThreadHandlerEventArgs(this);
}
// NOTE:
// Locking is not necessary if you assume, that all the events are assigned before starting the thread.
// ALSO even if locking is implemented, there can a PROBLEM still arise if the last delegate function is removed after the lock on the thread is released and before the event is raised.
try
{
try
{
// MAIN FUNCTION
System.Threading.Monitor.Enter(this);
if (OnJob != null)
{
System.Threading.Monitor.Exit(this);
OnJob(evArgs);
System.Threading.Monitor.Enter(this);
}
System.Threading.Monitor.Exit(this);
// NOTE: It is also possible to abort the finish event !!!
System.Threading.Monitor.Enter(this);
if (OnFinish != null)
{
System.Threading.Monitor.Exit(this);
OnFinish(evArgs);
System.Threading.Monitor.Enter(this);
}
System.Threading.Monitor.Exit(this);
}
catch (System.Threading.ThreadAbortException)
{
// WHEN ABORTING
// NOTE: If you call ResetAbort the ThreadAbortException will not be re-throw-ed after each catch block... Code after block finally will also be executed...
// System.Threading.Thread.ResetAbort();
System.Threading.Monitor.Enter(this);
if (OnAbort != null)
{
System.Threading.Monitor.Exit(this);
OnAbort(evArgs);
System.Threading.Monitor.Enter(this);
}
System.Threading.Monitor.Exit(this);
}
}
catch (System.Threading.ThreadAbortException)
{
// Ignore this king of exception, it was already handled...but if not reseted, it is automatically re-thrown.
}
catch (Exception ex)
{
// HANDLING EXCEPTIONS
System.Threading.Monitor.Enter(this);
if (OnException != null)
{
ThreadHandlerExceptionArgs exArgs = new ThreadHandlerExceptionArgs(this, ex);
System.Threading.Monitor.Exit(this);
OnException(exArgs);
System.Threading.Monitor.Enter(this);
}
System.Threading.Monitor.Exit(this);
}
finally
{
// CLEAN-UP - NOTE: Exceptions are not handled here, so be careful!
System.Threading.Monitor.Enter(this);
if (OnTerminate != null)
{
System.Threading.Monitor.Exit(this);
OnTerminate(evArgs);
System.Threading.Monitor.Enter(this);
}
System.Threading.Monitor.Exit(this);
}
// This line executes only, when ThreadAbortException is Reset-ed...
System.Console.WriteLine("HALO...");
}
/// <summary>
/// Represents the method that will handle the OnFinish event.
/// </summary>
public virtual void OnFinish(ThreadHandlerEventArgs arg)
{
}
/// <summary>
/// Represents the method that will handle the OnAbort event.
/// </summary>
public virtual void OnAbort(ThreadHandlerEventArgs arg)
{
}
/// <summary>
/// Represents the method that will handle the OnTerminate event.
/// </summary>
public virtual void OnTerminate(ThreadHandlerEventArgs arg)
{
}
/// <summary> /// Represents the method that will handle the OnJob event. /// </summary> public abstract void OnJob(ThreadHandlerEventArgs arg);