I commonly employ a while loop that continues to try some operation until either the operation succeeds or a timeout has elapsed:
bool success = false
int elapsed = 0
while( ( !success ) && ( elapsed < 10000 ) )
{
Thread.sleep( 1000 );
elapsed += 1000;
success = ... some operation ...
}
I know there a couple of way to implement this, but the basic point is that I repeatedly try some operation with a sleep until success or I've slept too long in aggregate.
Is there a built-in .net class/method/etc to save me from re-writing this pattern all over the place? Perhaps input is an Func(of bool) and the timeout?
Edit
Thanks to all who contributed. I opted for the sleep() approach because it was the least complicated and I'm totally anti-complexity =) Here's my (still needs to be tested) implimentation:
public static bool RetryUntilSuccessOrTimeout( Func<bool> task , TimeSpan timeout , TimeSpan pause )
{
if ( pause.TotalMilliseconds < 0 )
{
throw new ArgumentException( "pause must be >= 0 milliseconds" );
}
var stopwatch = Stopwatch.StartNew();
do
{
if ( task() ) { return true; }
Thread.Sleep( ( int )pause.TotalMilliseconds );
}
while ( stopwatch.Elapsed < timeout );
return false;
}
You could use SpinWait.SpinUntil
See https://msdn.microsoft.com/en-us/library/dd449238(v=vs.110).aspx
bool spinUntil = System.Threading.SpinWait.SpinUntil(() => job.IsDisposed, TimeSpan.FromSeconds(5));