/// <summary>
/// Raises the <see cref="CancellationPolled"/> event with the appropriate event args to match the current state of
/// this cancellation token and updates the cancellation polling tracking data.
/// </summary>
private void RaiseCancellationPolled()
{
CancellationPolledEventArgs eventArgs;
lock (this.pollingLock)
{
long currentTicks = DateTime.Now.Ticks;
eventArgs = new CancellationPolledEventArgs(
currentTicks - this.previousPollTicks, this.isFirstPolling);
this.previousPollTicks = currentTicks;
if (this.isFirstPolling)
{
this.isFirstPolling = false;
}
}
this.RaiseCancellationPolled(eventArgs);
}
/// <summary>
/// Raises the <see cref="CancellationPolled"/> event.
/// </summary>
/// <param name="eventArgs">The <see cref="CancellationPolledEventArgs"/> instance containing the event data.</param>
protected virtual void RaiseCancellationPolled(CancellationPolledEventArgs eventArgs)
{
Contracts.Requires.That(eventArgs != null);
this.CancellationPolled?.Invoke(this, eventArgs);
}
