public async Task <BlobLease?> AcquireLeaseAsync(string blobName, TimeSpan timeout)
{
var watch = new Stopwatch();
var waitTime = TimeSpan.FromSeconds(1);
watch.Start();
while (watch.Elapsed < timeout)
{
var lease = await _storageFacade.AcquireLeaseAsync(blobName);
if (lease != null)
{
return(lease);
}
else
{
waitTime = Min(timeout - watch.Elapsed, waitTime);
_logger.Display($"Blob {blobName} is locked for {watch.Elapsed}"
+ $", retry in {waitTime}");
_logger
.AddContext("duration", watch.Elapsed)
.WriteEvent("blob-locked");
await Task.Delay(waitTime);
waitTime = Min(waitTime * 2, TimeSpan.FromSeconds(5));
}
}
_logger.Display($"Blob {blobName} is locked, timeout expired");
return(null);
}
