internal CronTaskWrapper(IAsyncWork asyncWork, CronExpression cron, CancellationToken innerCancellation, int execCount)
{
_asyncWork = asyncWork;
_work = null;
_cron = cron;
_innerCancellation = innerCancellation;
_execCount = execCount;
_cancellationRegistration = _innerCancellation.Register(() => _subject.OnCompleted(), false);
}
internal RepeatedTaskWrapper(IAsyncWork asyncWork, DateTime startTime, TimeSpan repeatDelay, CancellationToken innerCancellation,
int execCount)
{
_asyncWork = asyncWork;
_work = null;
_innerCancellation = innerCancellation;
_nextScheduledTime = startTime.ToLocalTime();
_repeatDelay = repeatDelay;
while (_nextScheduledTime < DateTime.Now)
{
_nextScheduledTime += _repeatDelay;
}
_execCount = execCount;
_cancellationRegistration = _innerCancellation.Register(() => _subject.OnCompleted(), false);
}
internal StartupWorkWrapper(IAsyncWork asyncWork)
{
_work = null;
_asyncWork = asyncWork;
}
/// <summary> Create <see cref="IScheduledTaskWrapper" /> for given <paramref name="asyncWork" /> scheduled to <paramref name="startTime" /> </summary>
/// <param name="asyncWork"> Work instance </param>
/// <param name="startTime"> Work first execution time </param>
/// <param name="repeatDelay"> Work repeat delay </param>
/// <param name="cancellation"> Work cancellation token </param>
/// <param name="execCount"> Max work execution count (-1 for unlimited) </param>
/// <exception cref="ArgumentNullException"> Thrown if <paramref name="asyncWork" /> is NULL </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown if <paramref name="repeatDelay" /> isn't greater then 00:00:00.000 or
/// <paramref name="execCount" /> is 0 or less then -1
/// </exception>
/// <returns> Wrapper and work result observable </returns>
public static (IScheduledTaskWrapper, IObservable <Maybe <Exception> >) CreateRepeatedWorkWrapper(IAsyncWork asyncWork, DateTime startTime,
TimeSpan repeatDelay, CancellationToken cancellation = default, int execCount = -1)
{
startTime = startTime.ToLocalTime();
var wrapper = new RepeatedTaskWrapper(asyncWork ?? throw new ArgumentNullException(nameof(asyncWork)),
startTime,
repeatDelay <= TimeSpan.Zero
? throw new ArgumentOutOfRangeException(nameof(repeatDelay), repeatDelay, "Must be greater then 00:00:00.000")
: repeatDelay,
cancellation,
execCount is > 0 or - 1
? execCount
: throw new ArgumentOutOfRangeException(nameof(execCount), execCount, "Must be greater then 0 or -1 for unlimited repeat"));
return(wrapper, wrapper.WorkObservable);
}