/// <summary>
/// 返回上一步操作
/// </summary>
/// <typeparam name="T">需要接受的数据对象类型</typeparam>
/// <param name="refadd">需要接受的数据对象引用</param>
public void Previous <T>(out T refadd) where T : class, new()
{
Transaction tran = _tranStack.Pop();
if (tran == null)//顶层事务
{
Transaction.Current.Rollback();
}
// tran.Rollback();//回滚本事务,将触发所有克隆事务的回滚。
if (PreviousEvent != null)
{
if (PreviousEvent.GetInvocationList().Length > 0)
{
//设置上一步数据对象
refadd = (_resourceStack.Pop() as IReversibleGetResourceData <T>).GetPreviousData();
PreviousEvent(Transaction.Current);
return;
}
}
refadd = new T();//事务处理异常
}
void InitializeFromPrimary()
{
atomsFields = new ByteAtomTable();
atomsRecords = new ByteAtomTable();
atomsProcesses = new ByteAtomTable();
listEventFields = new List <List <int> >();
byte[] byRecordEscape = ByteWindow.MakeBytes("$R");
idRecordEscape = atomsFields.EnsureContains(byRecordEscape);
byte[] byTimeEscape = ByteWindow.MakeBytes("$T");
idTimeEscape = atomsFields.EnsureContains(byTimeEscape);
byte[] byTimeOffsetEscape = ByteWindow.MakeBytes("$TimeOffset");
idTimeOffsetEscape = atomsFields.EnsureContains(byTimeOffsetEscape);
byte[] byWhenEscape = ByteWindow.MakeBytes("$When");
idWhenEscape = atomsFields.EnsureContains(byWhenEscape);
byte[] byFirstEscape = ByteWindow.MakeBytes("$First");
idFirstEscape = atomsFields.EnsureContains(byFirstEscape);
byte[] byLastEscape = ByteWindow.MakeBytes("$Last");
idLastEscape = atomsFields.EnsureContains(byLastEscape);
byte[] byBeginHeader = ByteWindow.MakeBytes("BeginHeader");
byte[] byEndHeader = ByteWindow.MakeBytes("EndHeader");
ByteWindow b = new ByteWindow();
threads.Clear();
offsets.Clear();
while (stm.ReadLine(b))
{
if (b.StartsWith(byBeginHeader))
{
break;
}
}
while (stm.ReadLine(b))
{
if (b.StartsWith(byEndHeader))
{
break;
}
b.Field(0).Trim();
int iCountBefore = atomsRecords.Count;
atomsRecords.EnsureContains(b);
if (atomsRecords.Count == iCountBefore)
{
continue;
}
List <int> listFields = new List <int>();
listEventFields.Add(listFields);
listFields.Add(0); // the ID for $R, the record escape field
// start from field 1 -- that skips only field 0 which is already mapped to $R
for (int i = 1; i < b.fieldsLen; i++)
{
b.Field(i).Trim();
int id = atomsFields.EnsureContains(b);
listFields.Add(id);
}
}
stackIgnoreEvents = new bool[atomsRecords.Count];
foreach (string strEvent in stackIgnoreEventStrings)
{
int id = atomsRecords.Lookup(strEvent);
if (id >= 0)
{
stackIgnoreEvents[id] = true;
}
}
recordInfo = new RecordInfo[atomsRecords.Count];
int idThreadField = atomsFields.Lookup("ThreadID");
int idFileNameField = atomsFields.Lookup("FileName");
int idTypeField = atomsFields.Lookup("Type");
int idSizeField = atomsFields.Lookup("Size");
int idIOSizeField = atomsFields.Lookup("IOSize");
int idElapsedTimeField = atomsFields.Lookup("ElapsedTime");
for (int i = 0; i < recordInfo.Length; i++)
{
List <int> fieldList = listEventFields[i];
recordInfo[i].threadField = fieldList.IndexOf(idThreadField);
recordInfo[i].sizeField = fieldList.IndexOf(idSizeField);
if (-1 == recordInfo[i].sizeField)
{
recordInfo[i].sizeField = fieldList.IndexOf(idIOSizeField);
}
recordInfo[i].goodNameField = fieldList.IndexOf(idFileNameField);
if (-1 == recordInfo[i].goodNameField)
{
recordInfo[i].goodNameField = fieldList.IndexOf(idTypeField);
}
recordInfo[i].elapsedTimeField = fieldList.IndexOf(idElapsedTimeField);
}
int idT_DCEnd = atomsRecords.Lookup("T-DCEnd");
int idT_DCStart = atomsRecords.Lookup("T-DCStart");
int idT_Start = atomsRecords.Lookup("T-Start");
int idT_End = atomsRecords.Lookup("T-End");
int idCSwitch = atomsRecords.Lookup("CSwitch");
int idStack = atomsRecords.Lookup("Stack");
int idAlloc = atomsRecords.Lookup("Allocation");
int idFirstReliableEventTimeStamp = atomsRecords.Lookup("FirstReliableEventTimeStamp");
int idFirstReliableCSwitchEventTimeStamp = atomsRecords.Lookup("FirstReliableCSwitchEventTimeStamp");
long tNext = 100000;
long t = 0;
// seed offsets for the 0th record
offsets.Add(stm.Position);
listInitialTime = new List <TimeMark>();
maxCPU = 64;
CPUState[] state = new CPUState[maxCPU];
const int maxEvent = 16;
PreviousEvent[] prev = new PreviousEvent[maxEvent];
int iNextEvent = 0;
stackTypes = new bool[atomsRecords.Count];
Dictionary <int, int> dictStartedThreads = new Dictionary <int, int>();
ByteWindow record = new ByteWindow();
ByteWindow bThreadProc = new ByteWindow();
ByteWindow bProcess = new ByteWindow();
// the first line of the trace is the trace info, that, importantly, has the OSVersion tag
if (stm.ReadLine(b))
{
traceinfo = b.GetString();
}
else
{
traceinfo = "None";
}
while (stm.ReadLine(b))
{
if (b.len < typeLen)
{
continue;
}
record.Assign(b, 0).Trim();
int idrec = atomsRecords.Lookup(record);
if (idrec < 0)
{
continue;
}
if (idrec == idFirstReliableCSwitchEventTimeStamp ||
idrec == idFirstReliableEventTimeStamp)
{
continue;
}
recordInfo[idrec].count++;
t = b.GetLong(1);
while (t >= tNext)
{
tNext = AddTimeRow(tNext, state);
}
if (idrec != idStack && !stackIgnoreEvents[idrec])
{
prev[iNextEvent].time = t;
prev[iNextEvent].eventId = idrec;
iNextEvent = (iNextEvent + 1) % maxEvent;
}
if (idrec == idStack)
{
int i = iNextEvent;
for (; ;)
{
if (--i < 0)
{
i = maxEvent - 1;
}
if (i == iNextEvent)
{
break;
}
if (prev[i].time == t)
{
stackTypes[prev[i].eventId] = true;
break;
}
}
}
else if (idrec == idT_Start ||
idrec == idT_End ||
idrec == idT_DCStart ||
idrec == idT_DCEnd)
{
ThreadInfo ti = new ThreadInfo();
ti.threadid = b.GetInt(fldTStartThreadId);
bool fStarted = dictStartedThreads.ContainsKey(ti.threadid);
if (idrec == idT_Start)
{
ti.timestamp = t;
}
else if (idrec == idT_DCStart)
{
ti.timestamp = 0;
}
else
{
if (fStarted)
{
continue;
}
ti.timestamp = 0;
}
if (!fStarted)
{
dictStartedThreads.Add(ti.threadid, 0);
}
bThreadProc.Assign(b, fldTStartThreadProc).Trim();
bProcess.Assign(b, fldTStartProcess).Trim();
ti.processPid = bProcess.Clone();
if (atomsProcesses.Lookup(bProcess) == -1)
{
atomsProcesses.EnsureContains(ti.processPid);
ProcessInfo pi = new ProcessInfo();
pi.processPid = ti.processPid;
processes.Add(pi);
}
bProcess.Truncate((byte)'(').Trim();
ti.processNopid = bProcess.Clone();
ti.threadproc = bThreadProc.Clone();
threads.Add(ti);
}
else if (idrec == idCSwitch)
{
int newTid = b.GetInt(fldCSwitchNewTID);
int oldTid = b.GetInt(fldCSwitchOldTID);
int cpu = b.GetInt(fldCSwitchCPU);
if (cpu < 0 || cpu > state.Length)
{
continue;
}
int tusage = (int)(t - state[cpu].time);
if (state[cpu].tid != 0 && tusage > 0)
{
state[cpu].usage += tusage;
}
state[cpu].time = t;
state[cpu].tid = newTid;
state[cpu].active = true;
}
}
AddTimeRow(t, state);
threads.Sort();
int tid = -1;
mp_tid_firstindex = new Dictionary <int, int>();
for (int i = 0; i < threads.Count; i++)
{
if (tid != threads[i].threadid)
{
tid = threads[i].threadid;
mp_tid_firstindex.Add(tid, i);
}
}
sortedThreads = new int[threads.Count];
for (int i = 0; i < sortedThreads.Length; i++)
{
sortedThreads[i] = i;
}
Array.Sort(sortedThreads,
delegate(int id1, int id2)
{
byte[] b1 = threads[id1].processPid;
byte[] b2 = threads[id2].processPid;
int cmp = ByteWindow.CompareBytes(b1, b2, true);
if (cmp != 0)
{
return(cmp);
}
if (threads[id1].threadid < threads[id2].threadid)
{
return(-1);
}
if (threads[id1].threadid > threads[id2].threadid)
{
return(1);
}
return(0);
}
);
sortedProcesses = new int[processes.Count];
for (int i = 0; i < sortedProcesses.Length; i++)
{
sortedProcesses[i] = i;
}
Array.Sort(sortedProcesses,
delegate(int id1, int id2)
{
byte[] b1 = processes[id1].processPid;
byte[] b2 = processes[id2].processPid;
return(ByteWindow.CompareBytes(b1, b2, true));
}
);
tmax = t;
TrySaveState();
}
