internal bool Clean()
{
if (WriteMap != null)
{
WriteMap.Clean();
WriteMap = null;
}
return(true);
/*
* var toClean = Interlocked.Exchange(ref WriteMap, null);
* // the toClean may be null because more
* // than one thread may race into this method
* // yet, because of the atomic getAndSet above,
* // only one will actually clean the bodies
* if (toClean != null)
* {
* toClean.Clean();
* return true;
* }
* else
* {
* return false;
* }*/
}
public void Merge(WriteMap other)
{
foreach (var kvpair in other)
{
Add(kvpair.Key, kvpair.Value);
}
}
public WriteMap(WriteMap other)
{
foreach (var item in other)
{
Add(item.Key, item.Value);
}
}
private JVTransaction(TransactionStatus status, int id, JVTransaction parent, ReadMap readMap, WriteMap writeMap)
{
Number = id;
Parent = parent;
ReadMap = readMap;
WriteMap = writeMap;
Status = status;
//Commutes = new List<BaseCommute>();
}
private JVTransaction(TransactionStatus status, ActiveTxnRecord txnRecord, JVTransaction parent, ReadMap readMap, WriteMap writeMap)
{
Number = txnRecord.TxNumber;
Parent = parent;
ReadMap = readMap;
WriteMap = writeMap;
Status = status;
_txnRecord = txnRecord;
//Commutes = new List<BaseCommute>();
}
public bool CommitLockFree()
{
if (WriteMap.Count == 0)
{
Status = TransactionStatus.Committed;
TxnContext.LocalContext.OldestRequiredRecord = null;
//_txnRecord.FinishTransaction();
return(true);
}
if (IsNested)
{
Parent.ReadMap.Merge(ReadMap);
Parent.WriteMap.Merge(WriteMap);
Status = TransactionStatus.Committed;
return(true);
}
try
{
WriteMap.PrepareCommit();
ValidateCommitAndEnqueue();
EnsureCommitStatus();
Status = TransactionStatus.Committed;
TxnContext.LocalContext.OldestRequiredRecord = null;
//_txnRecord.FinishTransaction();
//Interlocked.Decrement(ref _commitTxnRecord.Running);
return(true);
}
catch (STMCommitException)
{
return(false);
}
}
internal ActiveTxnRecord(int txNumber, WriteMap bodies)
{
TxNumber = txNumber;
WriteMap = bodies;
Running = 1;
}
