/**
* Notifies every registered listener that a task execution has successfully
* completed.
*
* @param executor
* The task executor.
*/
internal void notifyTaskSucceeded(TaskExecutor executor)
{
if (executor == null)
{
throw new ArgumentNullException("executor", "executor is null.");
}
lock (listeners)
{
int size = listeners.Count;
for (int i = 0; i < size; i++)
{
SchedulerListener l = (SchedulerListener)listeners[i];
l.TaskSucceeded(executor);
}
}
}
/**
* It waits until the given task executor is dead. It is similar to
* {@link TaskExecutor#join()}, but this one avoids
* {@link ThreadInterruptedException} instances.
*
* @param executor
* The task executor.
*/
private void tillExecutorDies(TaskExecutor executor)
{
if (executor == null)
{
throw new ArgumentNullException("executor", "executor is null.");
}
bool dead = false;
do
{
try
{
executor.Join();
dead = true;
}
catch (ThreadInterruptedException e)
{
;
}
} while (!dead);
}
/// <summary>
///
/// </summary>
/// <param name="executor"></param>
public MyContext(TaskExecutor executor)
{
this.cTaskExecutor = executor;
}
/**
* Builds the executor.
*
* @param scheduler
* The scheduler whose this executor belongs to.
* @param task
* The task that has to be executed.
*/
internal TaskExecutor(Scheduler scheduler, Task task)
{
this.scheduler = scheduler;
this.task = task;
this.context = new MyContext(this);
this.myself = this;
}
/// <summary>
///
/// </summary>
/// <param name="executor"></param>
public Runner(TaskExecutor executor)
{
this.cTaskExecutor = executor;
}
/// <summary>
///
/// </summary>
/// <param name="executor"></param>
public Runner(TaskExecutor executor)
{
this.cTaskExecutor = executor;
}
/// <summary>
///
/// </summary>
/// <param name="executor"></param>
public MyContext(TaskExecutor executor)
{
this.cTaskExecutor = executor;
}
/**
* It waits until the given task executor is dead. It is similar to
* {@link TaskExecutor#join()}, but this one avoids
* {@link ThreadInterruptedException} instances.
*
* @param executor
* The task executor.
*/
private void tillExecutorDies(TaskExecutor executor)
{
if (executor == null)
throw new ArgumentNullException("executor", "executor is null.");
bool dead = false;
do
{
try
{
executor.Join();
dead = true;
}
catch (ThreadInterruptedException e)
{
;
}
} while (!dead);
}
/**
* Notifies every registered listener that a task execution has failed due
* to an uncaught exception.
*
* @param executor
* The task executor.
* @param exception
* The exception.
*/
internal void notifyTaskFailed(TaskExecutor executor, ThrowableException exception)
{
if (executor == null)
throw new ArgumentNullException("executor", "executor is null.");
if (exception == null)
throw new ArgumentNullException("exception", "exception is null.");
lock (listeners)
{
int size = listeners.Count;
if (size > 0)
{
for (int i = 0; i < size; i++)
{
SchedulerListener l = (SchedulerListener)listeners[i];
l.TaskFailed(executor, exception);
}
}
else
{
// Logs on console if no one has been notified about it.
Console.WriteLine(exception.ToString());
}
}
}
/**
* Notifies every registered listener that a task execution has successfully
* completed.
*
* @param executor
* The task executor.
*/
internal void notifyTaskSucceeded(TaskExecutor executor)
{
if (executor == null)
throw new ArgumentNullException("executor", "executor is null.");
lock (listeners)
{
int size = listeners.Count;
for (int i = 0; i < size; i++)
{
SchedulerListener l = (SchedulerListener)listeners[i];
l.TaskSucceeded(executor);
}
}
}
/**
* This method is called by a task executor to notify that the execution is
* completed.
*
* @param executor
* The executor which has completed its task.
*/
internal void notifyExecutorCompleted(TaskExecutor executor)
{
if (executor == null)
throw new ArgumentNullException("executor", "executor is null.");
lock (executors)
{
executors.Remove(executor);
}
}
/**
* Starts the given task within a task executor.
*
* @param task
* The task.
* @return The spawned task executor.
*/
internal TaskExecutor spawnExecutor(Task task)
{
if (task == null)
throw new ArgumentNullException("task", "task is null.");
TaskExecutor e = new TaskExecutor(this, task);
lock (executors)
{
executors.Add(e);
}
e.Start(daemon);
return e;
}
