public static async ValueTask ConsumeEnumerator <T>(this IAsyncEnumerator <T> enumerator)
{
await using var en = enumerator.ConfigureAwait(false);
while (await enumerator.MoveNextAsync().ConfigureAwait(false))
{
;
}
}
private static async Task AwaitMoveNextAsyncAndDispose <T>(Task <bool> moveNextAsync, IAsyncEnumerator <T> enumerator)
{
if (enumerator != null)
{
await using (enumerator.ConfigureAwait(false))
{
if (moveNextAsync != null)
{
await moveNextAsync.ConfigureAwait(false);
}
}
}
}
public static async IAsyncEnumerator <int> SimulateProcessing(this IAsyncEnumerator <int> enumerator, int procesingFrequency, TimeSpan processingLength)
{
await using var en = enumerator.ConfigureAwait(false);
int count = 0;
while (await enumerator.MoveNextAsync().ConfigureAwait(false))
{
if (++count == procesingFrequency)
{
count = 0;
Thread.Sleep(processingLength);
}
yield return(enumerator.Current + 1);
}
}
private static async Task AwaitMoveNextAsyncAndDispose <T>(Task <bool>?moveNextAsync, IAsyncEnumerator <T>?enumerator)
{
if (enumerator != null)
{
await using (enumerator.ConfigureAwait(false))
{
if (moveNextAsync != null)
{
try
{
await moveNextAsync.ConfigureAwait(false);
}
catch (TaskCanceledException)
{
// ignored because of cancelling the non-winners
}
}
}
}
}