public AutoRenewLease(CloudBlockBlob blob)
{
_blob = blob;
// acquire lease
LeaseId = blob.TryAcquireLease(TimeSpan.FromSeconds(60));
if (!HasLease) return;
// keep renewing lease
var fortySeconds = TimeSpan.FromSeconds(40);
_renewalTimer = new Timer(x =>
{
if (_isRenewing)
blob.RenewLease(AccessCondition.GenerateLeaseCondition(LeaseId));
}, null, fortySeconds, fortySeconds);
}
public AutoRenewLease(CloudBlockBlob blob)
{
this.blob = blob;
blob.Container.CreateIfNotExists();
leaseId = blob.TryAcquireLease();
if (HasLease)
{
renewalThread = new Thread(() =>
{
Thread.Sleep(TimeSpan.FromSeconds(40));
blob.RenewLease(new AccessCondition()
{
LeaseId = leaseId
});
});
renewalThread.Start();
}
}
private bool RenewLease(CloudBlockBlob blob)
{
if (!HasLease(blob))
return false;
var name = blob.Name;
try
{
blob.RenewLease(new AccessCondition
{
LeaseId = acquiredLeases[name].LeaseId
});
Trace.WriteLine(string.Format(RENEWED_LEASE, name));
return true;
}
catch (StorageException)
{
acquiredLeases.Remove(name);
Trace.WriteLine(string.Format(REMOVED_LEASE_FROM_ACQUIREDLEASES, name));
return false;
}
}