internal void CommitAndIncrementSerial(IReadOnlyList <DnsResourceRecord> deletedRecords = null, IReadOnlyList <DnsResourceRecord> addedRecords = null)
{
if (_internal)
{
return;
}
lock (_history)
{
DnsResourceRecord oldSoaRecord = _entries[DnsResourceRecordType.SOA][0];
DnsResourceRecord newSoaRecord;
{
DnsSOARecord soa = oldSoaRecord.RDATA as DnsSOARecord;
uint serial = soa.Serial;
if (serial < uint.MaxValue)
{
serial++;
}
else
{
serial = 1;
}
newSoaRecord = new DnsResourceRecord(oldSoaRecord.Name, oldSoaRecord.Type, oldSoaRecord.Class, oldSoaRecord.TtlValue, new DnsSOARecord(soa.PrimaryNameServer, soa.ResponsiblePerson, serial, soa.Refresh, soa.Retry, soa.Expire, soa.Minimum))
{
Tag = oldSoaRecord.Tag
};
oldSoaRecord.Tag = null; //remove RR info from old SOA to allow creating new RR info for it during SetDeletedOn()
}
//update SOA
_entries[DnsResourceRecordType.SOA] = new DnsResourceRecord[] { newSoaRecord };
//start commit
oldSoaRecord.SetDeletedOn(DateTime.UtcNow);
//write removed
_history.Add(oldSoaRecord);
if (deletedRecords is not null)
{
foreach (DnsResourceRecord deletedRecord in deletedRecords)
{
if (deletedRecord.IsDisabled())
{
continue;
}
_history.Add(deletedRecord);
if (deletedRecord.Type == DnsResourceRecordType.NS)
{
_history.AddRange(deletedRecord.GetGlueRecords());
}
}
}
//write added
_history.Add(newSoaRecord);
if (addedRecords is not null)
{
foreach (DnsResourceRecord addedRecord in addedRecords)
{
if (addedRecord.IsDisabled())
{
continue;
}
_history.Add(addedRecord);
if (addedRecord.Type == DnsResourceRecordType.NS)
{
_history.AddRange(addedRecord.GetGlueRecords());
}
}
}
//end commit
CleanupHistory(_history);
}
}
