public static async Task <PollHelperResult> PollUntilTrueAsync(Func <Task <bool> > pollFunc, TimeSpan timeSpanTillTimeoutOverAll,
string timeoutErrorMessage, double pollIntervalMilliSeconds, int maxSecondsForEachRun = 60_000)
{
TimeSpan pollInterval = TimeSpan.FromSeconds(1);
if (pollIntervalMilliSeconds > -1)
{
pollInterval = TimeSpan.FromMilliseconds(pollIntervalMilliSeconds);
}
DateTime lStartTime = DateTime.UtcNow;
PollHelperResult lResult = new PollHelperResult();
while (!lResult.IsFinished)
{
if ((lStartTime + timeSpanTillTimeoutOverAll) <= DateTime.UtcNow)
{
throw new TimeoutException(timeoutErrorMessage);
}
DateTime lStartExecution = DateTime.UtcNow;
DateTime lEndExecution = lStartExecution;
using (CancellationTokenSource tokenSource = new CancellationTokenSource(maxSecondsForEachRun))
{
await Task.Run(async() =>
{
try
{
lResult.IsFinished = await pollFunc();
}
catch (Exception ex)
{
lResult.Exception = ex;
lResult.IsFinished = true;
}
lEndExecution = DateTime.UtcNow;
}, tokenSource.Token);
}
TimeSpan lTimeToWaitTillNextInterval = pollInterval - (lEndExecution - lStartExecution);
if (lTimeToWaitTillNextInterval.Ticks > 0)
{
await Task.Delay(lTimeToWaitTillNextInterval);
}
}
return(lResult);
}
