private static snapshotObjects getSnapshotObjectsFromNAS(NASAccess nas, string snapshotFullName)
{
snapshot shotToRestore = getSnapshot(nas, snapshotFullName);
if (shotToRestore == null)
{
nas.invalidateSnapshots();
shotToRestore = getSnapshot(nas, snapshotFullName);
if (shotToRestore == null)
{
throw new Exception("Cannot find snapshot " + snapshotFullName);
}
}
// Now find the extent. We'll need to delete it before we can rollback the snapshot.
iscsiExtent extent = getExtent(nas, snapshotFullName);
if (extent == null)
{
nas.invalidateExtents();
extent = getExtent(nas, snapshotFullName);
if (extent == null)
{
throw new Exception("Cannot find extent " + snapshotFullName);
}
}
// Find the 'target to extent' mapping, since this will need to be deleted before we can delete the extent.
iscsiTargetToExtentMapping tgtToExtent = getTgtToExtent(nas, extent);
if (tgtToExtent == null)
{
nas.invalidateTargetToExtents();
tgtToExtent = getTgtToExtent(nas, extent);
if (tgtToExtent == null)
{
throw new Exception("Cannot find target-to-extent mapping with ID " + extent.id + " for snapshot " + shotToRestore.name);
}
}
// We find the target, as well, just to be sure that our cache is correct.
if (nas.getISCSITargets().Count(x => x.id == tgtToExtent.iscsi_target) == 0)
{
nas.invalidateTargets();
if (nas.getISCSITargets().Count(x => x.id == tgtToExtent.iscsi_target) == 0)
{
throw new Exception("Cannot find target for snapshot " + snapshotFullName);
}
}
return(new snapshotObjects()
{
extent = extent,
shotToRestore = shotToRestore,
tgtToExtent = tgtToExtent
});
}
public override void deleteISCSITargetToExtent(iscsiTargetToExtentMapping tgtToExtent)
{
lock (events)
{
events.Add(new mockedCall("deleteISCSITargetToExtent", "tgtToExtent: '" + tgtToExtent));
}
lock (tgtToExtents)
{
tgtToExtents.Remove(tgtToExtent.id);
}
}
public override iscsiTargetToExtentMapping addISCSITargetToExtent(string iscsiTargetID, iscsiExtent newExtent)
{
lock (events)
{
events.Add(new mockedCall("addISCSITargetToExtent", "iscsiTarget: '" + iscsiTargetID + "' newExtent: " + newExtent));
}
lock (tgtToExtents)
{
string newID = idGen.Next().ToString();
iscsiTargetToExtentMapping newMapping = new iscsiTargetToExtentMapping()
{
id = newID, iscsi_target = iscsiTargetID, iscsi_extent = newExtent.id, iscsi_lunid = "0"
};
tgtToExtents.Add(newID, newMapping);
return(tgtToExtents[newID]);
}
}
public override void deleteISCSITargetToExtent(iscsiTargetToExtentMapping tgtToExtent)
{
lock (this)
{
waitingISCSIOperations++;
}
try
{
uncachedNAS.deleteISCSITargetToExtent(tgtToExtent);
iscsiTargetToExtentMapping foo;
TTEExtents.TryRemove(tgtToExtent.id, out foo);
}
finally
{
lock (this)
{
waitingISCSIOperations--;
}
markThisThreadISCSIDirty();
}
}
public abstract void deleteISCSITargetToExtent(iscsiTargetToExtentMapping tgtToExtent);
private static iscsiTargetToExtentMapping getTgtToExtent(NASAccess nas, iscsiExtent extent)
{
iscsiTargetToExtentMapping tgtToExtent = nas.getTargetToExtents().SingleOrDefault(x => x.iscsi_extent == extent.id);
return(tgtToExtent);
}
public override void deleteISCSITargetToExtent(iscsiTargetToExtentMapping tgtToExtent)
{
string url = String.Format("http://{0}/api/v1.0/services/iscsi/targettoextent/{1}/", _serverIp, tgtToExtent.id);
doReq(url, "DELETE", HttpStatusCode.NoContent);
}
