internal static async Task RollbackTransactionAsync(Guid id)
{
await _locker.LockAsync();
try
{
TransactionInternal transactionInternal = transactions[id];
foreach (ObjectSerializer ser in transactionInternal.nrRecordsBeforeCommit.Keys)
{
await ser.SaveNrRecordsAsync(transactionInternal.nrRecordsBeforeCommit[ser].Key, transactionInternal.nrRecordsBeforeCommit[ser].Value).ConfigureAwait(false);
}
foreach (TransactionObject trObj in transactionInternal.transactionObjects)
{
await trObj.RollbackAsync().ConfigureAwait(false);
}
transactions.Remove(id);
await transactionInternal.siaqodbInstance.DropTypeAsync <TransactionObjectHeader>().ConfigureAwait(false);
await transactionInternal.siaqodbInstance.DropTypeAsync <TransactionTypeHeader>().ConfigureAwait(false);
transactionInternal.siaqodbInstance.DropTransactionLog();
transactionInternal.transaction.status = TransactionStatus.Closed;
await transactionInternal.siaqodbInstance.FlushAsync().ConfigureAwait(false);
}
finally
{
_locker.Release();
}
}
public static Transaction BeginTransaction(Siaqodb siaqodb)
{
Transaction trans = new Transaction();
TransactionInternal trInt = new TransactionInternal(trans, siaqodb);
transactions.Add(trans.ID, trInt);
return(trans);
}
internal static void RollbackTransaction(Guid id)
{
lock (_SyncRoot)
{
TransactionInternal transactionInternal = transactions[id];
foreach (ObjectSerializer ser in transactionInternal.nrRecordsBeforeCommit.Keys)
{
ser.SaveNrRecords(transactionInternal.nrRecordsBeforeCommit[ser].Key, transactionInternal.nrRecordsBeforeCommit[ser].Value);
}
foreach (TransactionObject trObj in transactionInternal.transactionObjects)
{
trObj.Rollback();
}
transactions.Remove(id);
transactionInternal.siaqodbInstance.DropType <TransactionObjectHeader>();
transactionInternal.siaqodbInstance.DropType <TransactionTypeHeader>();
transactionInternal.siaqodbInstance.DropTransactionLog();
transactionInternal.transaction.status = TransactionStatus.Closed;
transactionInternal.siaqodbInstance.Flush();
}
}
internal static void CommitTransaction(Guid id)
{
lock (_SyncRoot)
{
TransactionInternal transactionInternal = transactions[id];
TransactionObjectHeader lastHeader = null;
TransactionsStorage transactStorage = transactionInternal.siaqodbInstance.GetTransactionLogStorage();
foreach (SqoTypeInfo ti in transactionInternal.tiInvolvedInTransaction)
{
transactionInternal.siaqodbInstance.PutIndexPersiststenceState(ti, false);
}
transactionInternal.siaqodbInstance.TransactionCommitStatus(true);
try
{
foreach (TransactionObject trObj in transactionInternal.transactionObjects)
{
if (!transactionInternal.nrRecordsBeforeCommit.ContainsKey(trObj.serializer))
{
transactionInternal.nrRecordsBeforeCommit.Add(trObj.serializer, new KeyValuePair <SqoTypeInfo, int>(trObj.objInfo.SqoTypeInfo, trObj.objInfo.SqoTypeInfo.Header.numberOfRecords));
TransactionTypeHeader tHeader = new TransactionTypeHeader();
tHeader.NumberOfRecords = trObj.objInfo.SqoTypeInfo.Header.numberOfRecords;
tHeader.TypeName = trObj.objInfo.SqoTypeInfo.TypeName;
transactionInternal.siaqodbInstance.StoreObject(tHeader);
transactionInternal.siaqodbInstance.Flush <TransactionTypeHeader>();
}
TransactionObjectHeader header = trObj.PreCommit();
if (header != null)
{
if (lastHeader != null)
{
header.Position = lastHeader.Position + lastHeader.BatchSize;
}
SaveObjectForCrashRollback(trObj.originalObject, trObj.objInfo.SqoTypeInfo, transactStorage, header, trObj.engine);
SaveHeader(header, transactionInternal.siaqodbInstance);
lastHeader = header;
}
transactionInternal.siaqodbInstance.circularRefCache.Add(trObj.currentObject);
trObj.Commit();
}
}
finally
{
transactStorage.Close();
transactionInternal.siaqodbInstance.TransactionCommitStatus(false);
}
foreach (SqoTypeInfo ti in transactionInternal.tiInvolvedInTransaction)
{
transactionInternal.siaqodbInstance.PutIndexPersiststenceState(ti, true);
transactionInternal.siaqodbInstance.PersistIndexDirtyNodes(ti);
}
transactions.Remove(id);
transactionInternal.siaqodbInstance.DropType <TransactionObjectHeader>();
transactionInternal.siaqodbInstance.DropType <TransactionTypeHeader>();
transactionInternal.siaqodbInstance.DropTransactionLog();
transactionInternal.transaction.status = TransactionStatus.Closed;
transactionInternal.siaqodbInstance.Flush();
}
}