public bool Enqueue(WorkItem workItem)
{
// A work item cannot be null, since null is used in the
// WaitForWorkItem() method to indicate timeout or cancel
if (null == workItem) {
throw new ArgumentNullException("taskInfo", "taskInfo cannot be null");
}
ValidateNotDisposed();
_tasks.Enqueue(workItem);
return true;
}
protected virtual object Invoke(TaskStartInfo startInfo, params object[] args)
{
if (State == TaskState.Completed ||
State == TaskState.Canceled ||
State == TaskState.Idea)
{
if (this.workItem != null)
workItem.Dispose();
this.workItem = new WorkItem(func, args);
this.workItem.Task = this;
this.workItem.Initialize();
this.startInfo = startInfo;
this.startInfo.task = this;
TaskPool.Queue(this);
return workItem.Result;
}
else
{
throw new WorkItemInvokeException("state");
}
}
