public bool PutTask(DBTask task)
{
var ret = false;
try
{
using (var stream = StreamConvert.ObjectToStream(task, false))
{
var bytes = (stream as MemoryStream).GetBuffer();
var key = task.Sequence.ToString();
_DB.Put(key, bytes);
ret = true;
}
}
catch (Exception e)
{
Show(string.Format("Save Task[{0}] Faild.",task.Sequence) + e.Message,DebugType.Both, LogLevels.Fatal);
ret = false;
}
return ret;
}
private void ProcessTask(DBTask task)
{
var index = task.Sequence % _PendingLocker.Length;
var locker = _PendingLocker[index];
Monitor.Enter(locker);
try
{
if (task.Stored)
_PendingLocker[index] = task;
DataPool pool;
if (_DBManager.TryGetValue(task.DataBase, out pool))
{
retry:
try
{
pool.execSP(task.Procedure, task.Parameter);
}
catch (Exception)
{
Thread.Sleep(1000);
goto retry;
}
Interlocked.Exchange(ref _ProcessedSequence, task.Sequence);
task.Excuted = true;
if (task.Stored)
{
Trunk.TaskStorage.DelTask(task.Sequence);
}
}
}
finally
{
Monitor.Exit(locker);
}
}
private void InvokeData(DBTask data)
{
if (!data.Stored)
{
if (data.Sequence != _ProcessedSequence + 1)
{
for (int seq = _ProcessedSequence + 1; seq < data.Sequence; seq++)
{
var find = Trunk.TaskStorage.GetTask(seq);
if (find != null)
{
ProcessTask(find);
}
}
}
else
{
ProcessTask(data);
}
} else
{
ProcessTask(data);
}
}
public bool Excute(string instance,string dataBase,
string procedure,object[] parameter)
{
var add=new DBTask()
{
Instance = instance,
DataBase = dataBase,
Procedure = procedure,
Parameter = parameter,
Excuted = false,
Sequence = NextSeq
};
var ret = PushTask(add);
if (!ret)
{
return Trunk.TaskStorage.PutTask(add);
}
return ret;
}
internal bool PushTask(DBTask add)
{
if (add == null)
return false;
var added = false;
var index = add.Sequence % _PendingLocker.Length;
var locker = _PendingLocker[index];
if (Monitor.TryEnter(locker))
{
try
{
var exist = _Pending[index];
if (exist != null)
{
if (!exist.Excuted)
{
_PendingLocker[index] = add;
added = true;
}
}
}
finally
{
Monitor.Exit(locker);
}
}
if (added)
{
_ProcessThread.PushData(add);
}
else
{
Show(string.Format("Push Task[{0}] Faild.",add.Sequence),DebugType.Both,LogLevels.Error);
}
return added;
}