/// <summary>
/// do commit on the object itself
/// </summary>
/// <param name="TID"></param>
/// <returns></returns>
public bool Commit(long TID)
{
lock (this)
{
bool isCommited = false;
Console.WriteLine("\n---------------Commit (START, TID=" + TID + " ,UID=" + this.Uid + ")-------------------");
while (true)
{
if (TentativeList.Exists(x => x.WriteTS == TID))
{
if (TentativeList.Exists(x => x.WriteTS < TID))
{
Console.WriteLine("Wait TID = " + TID);
Monitor.Wait(this);
}
else
{
TentativePadInt temp = TentativeList.Find(x => x.WriteTS == TID);
this.Value = temp.Value;
this.WriteTS = temp.WriteTS;
this.IsCommited = true;
tentativeList.Remove(temp);
Monitor.PulseAll(this);
isCommited = true;
Console.WriteLine("commited TID : " + TID + ", Value = " + Value);
break;
}
}
else
{
Console.WriteLine("TID is not in this object to commit");
isCommited = true;
break;
}
}
Console.WriteLine("---------------Commited (End, TID=" + TID + ")-------------------\n");
return(isCommited);
}
}
/// <summary>
/// Do write on the object itself
/// </summary>
/// <param name="TID"></param>
/// <param name="value"></param>
/// <returns></returns>
public bool Write(long TID, int value)
{
lock (this)
{
bool isWriteSuccessful = false;
Console.WriteLine("\n---------------Write (START, TID=" + TID + ")-------------------");
Console.WriteLine("ReadTSList count = " + ReadTSList.Count());
Console.WriteLine("WriteTS = " + WriteTS);
Console.WriteLine("TID = " + TID);
Console.WriteLine("UID = " + this.Uid);
Console.WriteLine("Committed Version Value = " + this.Value);
if ((ReadTSList.Count() == 0 || TID >= ReadTSList.Max()) && TID > WriteTS)
{
if (TentativeList.Exists(x => x.WriteTS == TID))
{
TentativeList.First(x => x.WriteTS == TID).Value = value;
Console.WriteLine("Already in tentativelist, value updated TID = " + TID + ", Value = " + value);
}
else
{
TentativePadInt tentative = new TentativePadInt(TID, value);
TentativeList.Add(tentative);
Console.WriteLine("Added to tentativelist TID = " + TID + ", Value = " + value);
}
isWriteSuccessful = true;
}
else
{
TxAbort(TID);
Console.WriteLine("Transaction aborts. TID = " + TID);
Common.Logger().LogInfo("Write aborted TID=" + TID, string.Empty, string.Empty);
}
Console.WriteLine("---------------Write (END, TID=" + TID + ")-------------------\n");
return(isWriteSuccessful);
}
}
