internal void HandleDataDiskFullException(DiskFullException exception)
{
if(_options.ManualFlushing)
return;
_cancellationTokenSource.Cancel();
_endOfDiskSpace = new EndOfDiskSpaceEvent(exception.DriveInfo);
}
public Transaction NewTransaction(TransactionFlags flags, TimeSpan? timeout = null)
{
bool txLockTaken = false;
try
{
if (flags == (TransactionFlags.ReadWrite))
{
var wait = timeout ?? (Debugger.IsAttached ? TimeSpan.FromMinutes(30) : TimeSpan.FromSeconds(30));
Monitor.TryEnter(_txWriter, wait, ref txLockTaken);
if (txLockTaken == false)
{
throw new TimeoutException("Waited for " + wait +
" for transaction write lock, but could not get it");
}
if (_endOfDiskSpace != null)
{
if (_endOfDiskSpace.CanContinueWriting)
{
var flushingTask = _flushingTask;
Debug.Assert(flushingTask != null && (flushingTask.Status == TaskStatus.Canceled || flushingTask.Status == TaskStatus.RanToCompletion));
_cancellationTokenSource = new CancellationTokenSource();
_flushingTask = FlushWritesToDataFileAsync();
_endOfDiskSpace = null;
}
}
}
Transaction tx;
_txCommit.EnterReadLock();
try
{
long txId = flags == TransactionFlags.ReadWrite ? _transactionsCounter + 1 : _transactionsCounter;
tx = new Transaction(this, txId, flags, _freeSpaceHandling);
if (IsDebugRecording)
{
RecordTransactionState(tx, DebugActionType.TransactionStart);
tx.RecordTransactionState = RecordTransactionState;
}
}
finally
{
_txCommit.ExitReadLock();
}
_activeTransactions.Add(tx);
var state = _dataPager.TransactionBegan();
tx.AddPagerState(state);
if (flags == TransactionFlags.ReadWrite)
{
tx.AfterCommit = TransactionAfterCommit;
}
return tx;
}
catch (Exception)
{
if (txLockTaken)
Monitor.Exit(_txWriter);
throw;
}
}