public static TResult Execute <TResult>(
TryParameterlessAction <TResult> action,
long retryIntervalMs,
long retryCount = -1,
bool suppressExceptions = true,
int consecutiveFailuresUntilAbort = 10
)
{
return(Execute(
action, new TimeSpan(retryIntervalMs * TimeSpan.TicksPerMillisecond), retryCount, suppressExceptions,
consecutiveFailuresUntilAbort
));
}
public static TResult Execute <TResult>(
TryParameterlessAction <TResult> action,
TimeSpan retryInterval,
long retryCount = -1,
bool suppressExceptions = true,
int consecutiveFailuresUntilAbort = 10
)
{
if (retryInterval.TotalMilliseconds < 1000)
{
throw new InvalidOperationException("You should not use this class for small intervals.");
}
if (retryInterval.TotalMilliseconds < 2000)
{
Log.Warn("You should probably not be using Retry if you need such short intervals.");
}
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
var result = default(TResult);
var caughtExceptions = new List <Exception>();
var consecutiveExceptions = 0;
var retriesRemaining = retryCount;
while (retriesRemaining == -1 || 0 < retriesRemaining)
{
try
{
Thread.Sleep(retryInterval);
if (action(out result))
{
return(result);
}
consecutiveExceptions = 0;
caughtExceptions.Clear();
}
catch (Exception exception)
{
caughtExceptions.Add(exception);
if (++consecutiveExceptions >= consecutiveFailuresUntilAbort)
{
DumpExceptions(caughtExceptions);
throw new OperationCanceledException("Failed too many times consecutively, aborting.");
}
}
if (--retriesRemaining == 0)
{
break;
}
}
if (caughtExceptions.Count <= 0 || suppressExceptions)
{
return(result);
}
DumpExceptions(caughtExceptions);
throw caughtExceptions.FindLast(e => true) ?? new InvalidOperationException("Bad Retry state!");
}