/// <summary>
/// Updates the tasks.
/// </summary>
/// <param name="machineTrace">MachineActionTrace</param>
void UpdateTasks(MachineActionTrace machineTrace)
{
int currentMachineVC = 0;
foreach (MachineActionInfo info in machineTrace)
{
if (info.Type == MachineActionType.TaskMachineCreation)
{
//ThreadTrace matching = null;
var matching = this.AllThreadTraces.Where(item => item.IsTask && item.TaskId == info.TaskId);
if (matching.Count() == 0)
{
continue;
}
Node cn = new CActBegin(info.TaskMachineId.GetHashCode(), info.TaskId);
((CActBegin)cn).IsStart = true;
cn.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn.VectorClock[info.TaskMachineId.GetHashCode()] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.TaskMachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn);
foreach (var m in matching)
{
if (m.Accesses.Count > 0)
{
foreach (ActionInstr ins in m.Accesses)
{
((CActBegin)cn).Addresses.Add(new MemAccess(ins.IsWrite, ins.Location, ins.ObjHandle, ins.Offset,
ins.SrcLocation, info.TaskMachineId.GetHashCode()));
}
}
}
}
}
}
/// <summary>
/// Starts the engine.
/// </summary>
public bool Start()
{
IO.PrintLine(". Searching for data races");
string directoryPath = Path.GetDirectoryName(this.Configuration.AssemblyToBeAnalyzed) +
Path.DirectorySeparatorChar + "Output";
string runtimeTraceDirectoryPath = directoryPath + Path.DirectorySeparatorChar +
"RuntimeTraces" + Path.DirectorySeparatorChar;
string threadTraceDirectoryPath = directoryPath + Path.DirectorySeparatorChar +
"ThreadTraces" + Path.DirectorySeparatorChar;
if (this.Configuration.EnableProfiling)
{
this.Profiler.StartMeasuringExecutionTime();
}
string[] fileEntries = Directory.GetFiles(threadTraceDirectoryPath, "*");
int NumberOfIterations = 0;
foreach (string fileName in fileEntries)
{
string iterationStart = fileName.Substring(fileName.IndexOf("iteration_") + 10);
string iterationNumber = iterationStart.Substring(0, iterationStart.IndexOf('_'));
int currentIteration = Int32.Parse(iterationNumber);
if (currentIteration > NumberOfIterations)
{
NumberOfIterations = currentIteration;
}
}
string[] tfileEntries = Directory.GetFiles(threadTraceDirectoryPath, ("*_iteration_" + NumberOfIterations + "*"));
foreach (string fileName in tfileEntries)
{
//Deserialize thread traces
//Open the file written above and read values from it.
Stream stream = File.Open(fileName, FileMode.Open);
BinaryFormatter bformatter = new BinaryFormatter();
List <ThreadTrace> tt = (List <ThreadTrace>)bformatter.Deserialize(stream);
for (int i = 0; i < tt.Count; i++)
{
this.AllThreadTraces.Add(tt[i]);
}
stream.Close();
}
string[] mFileEntries = Directory.GetFiles(runtimeTraceDirectoryPath, ("*_iteration_" + NumberOfIterations + "*"));
this.VcCount = mFileEntries.Count() + 5;
//TODO: fix this
foreach (string fileName in mFileEntries)
{
//chain decomposition
string fileNumberStart = fileName.Substring(fileName.LastIndexOf('_') + 1);
string fileNumber = fileNumberStart.Substring(0, fileNumberStart.IndexOf('.'));
int tc = Int32.Parse(fileNumber);
if (tc > this.VcCount)
{
this.VcCount = tc;
}
}
this.VcCount = this.VcCount + 10;
foreach (string fileName in mFileEntries)
{
MachineActionTrace machineTrace = null;
using (FileStream stream = File.Open(fileName, FileMode.Open))
{
DataContractSerializer serializer = new DataContractSerializer(
typeof(MachineActionTrace));
machineTrace = serializer.ReadObject(stream) as MachineActionTrace;
}
this.UpdateTasks(machineTrace);
this.UpdateGraph(machineTrace);
}
this.UpdateGraphCrossEdges();
if (this.Configuration.EnableProfiling)
{
this.Profiler.StopMeasuringExecutionTime();
IO.PrintLine("... Graph construction runtime: '" +
this.Profiler.Results() + "' seconds.");
}
if (this.Configuration.EnableProfiling)
{
this.Profiler.StartMeasuringExecutionTime();
}
//Console.WriteLine("before pruning: nodes = " + CGraph.VertexCount + "; edges = " + CGraph.EdgeCount);
this.PruneGraph();
//Console.WriteLine("after pruning: nodes = " + CGraph.VertexCount + "; edges = " + CGraph.EdgeCount);
if (this.Configuration.EnableProfiling)
{
this.Profiler.StopMeasuringExecutionTime();
IO.PrintLine("... Graph prune runtime: '" +
this.Profiler.Results() + "' seconds.");
}
if (this.Configuration.EnableProfiling)
{
this.Profiler.StartMeasuringExecutionTime();
}
this.UpdateVectorsT();
if (this.Configuration.EnableProfiling)
{
this.Profiler.StopMeasuringExecutionTime();
IO.PrintLine("... Topological sort runtime: '" +
this.Profiler.Results() + "' seconds.");
}
if (this.Configuration.EnableProfiling)
{
this.Profiler.StartMeasuringExecutionTime();
}
bool foundBug = this.DetectRacesFast();
if (this.Configuration.EnableProfiling)
{
this.Profiler.StopMeasuringExecutionTime();
IO.PrintLine("... Race detection runtime: '" +
this.Profiler.Results() + "' seconds.");
}
this.CGraph.Clear();
this.AllThreadTraces.Clear();
return(foundBug);
}
/// <summary>
/// Updates the graph.
/// </summary>
/// <param name="machineTrace">MachineActionTrace</param>
void UpdateGraph(MachineActionTrace machineTrace)
{
int currentMachineVC = 0;
Node cLatestAction = null;
foreach (MachineActionInfo info in machineTrace)
{
if (info.Type != MachineActionType.SendAction && (info.ActionId != 0) && !(info.Type == MachineActionType.TaskMachineCreation))
{
ThreadTrace matching = null;
try
{
matching = this.AllThreadTraces.Where(item => item.MachineId == info.MachineId &&
item.ActionId == info.ActionId).Single();
}
catch (Exception)
{
//TODO: check correctness
//In case entry and exit functions not defined.
//IO.PrintLine("Skipping entry/exit actions: " + mt.MachineId + " " + mt.ActionId + " " + mt.ActionName);
continue;
}
Node cn = new CActBegin(matching.MachineId, matching.ActionName,
matching.ActionId, info.EventName, info.EventId);
if (matching.ActionId == 1)
{
((CActBegin)cn).IsStart = true;
}
cn.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn);
if (cLatestAction != null)
{
this.CGraph.AddEdge(new Edge(cLatestAction, cn));
}
Node cLatest = cn;
cLatestAction = cn;
bool createNew = false;
foreach (ActionInstr ins in matching.Accesses)
{
// User trace send event.
Node cn1;
if (createNew)
{
Node cnn = new CActBegin(matching.MachineId, matching.ActionName,
matching.ActionId, info.EventName, info.EventId);
cnn.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cnn.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cnn);
cn = cnn;
this.CGraph.AddEdge(new Edge(cLatest, cn));
createNew = false;
cLatest = cn;
}
if (ins.IsSend)
{
MachineActionInfo machineSend = machineTrace.Where(
item => item.MachineId == matching.MachineId &&
item.SendId == ins.SendId).Single();
cn1 = new SendEvent(machineSend.MachineId, machineSend.SendId,
machineSend.TargetMachineId, machineSend.SendEventName, machineSend.EventId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace create machine.
else if (ins.IsCreate)
{
cn1 = new CreateMachine(ins.CreateMachineId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace task creation.
else if (ins.IsTask)
{
cn1 = new CreateTask(ins.TaskId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace reads/writes.
else
{
((CActBegin)cn).Addresses.Add(new MemAccess(ins.IsWrite, ins.Location,
ins.ObjHandle, ins.Offset, ins.SrcLocation, info.MachineId));
cn1 = cn;
}
cLatest = cn1;
cLatestAction = cn1;
}
}
}
}
/// <summary>
/// Updates the tasks.
/// </summary>
/// <param name="machineTrace">MachineActionTrace</param>
void UpdateTasks(MachineActionTrace machineTrace)
{
//int currentMachineVC = 0;
//foreach (MachineActionInfo info in machineTrace)
//{
// if (info.isTaskMachine)
// {
// //ThreadTrace matching = null;
// var matching = this.AllThreadTraces.Where(item => item.IsTask && item.TaskId == mt.TaskId);
// if (matching.Count() == 0)
// continue;
// Node cn = new CActBegin(info.MachineId, info.TaskId);
// ((CActBegin)cn).IsStart = true;
// cn.VectorClock = new int[this.VcCount];
// currentMachineVC++;
// try
// {
// cn.VectorClock[info.MachineId] = currentMachineVC;
// }
// catch (Exception ex)
// {
// IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
// IO.PrintLine(ex);
// Environment.Exit(Environment.ExitCode);
// }
// this.CGraph.AddVertex(cn);
// foreach (var m in matching)
// {
// if (m.accesses.Count > 0)
// {
// foreach (ActionInstr ins in m.accesses)
// {
// ((CActBegin)cn).Addresses.Add(new MemAccess(ins.IsWrite, ins.Location, ins.ObjHandle, ins.Offset, ins.SrcLocation, mt.MachineId));
// }
// }
// }
// }
//}
}
/// <summary>
/// Updates the graph.
/// </summary>
/// <param name="machineTrace">MachineActionTrace</param>
void UpdateGraph(MachineActionTrace machineTrace)
{
int currentMachineVC = 0;
Node cLatestAction = null;
foreach (MachineActionInfo info in machineTrace)
{
if (info.Type != MachineActionType.SendAction && (info.ActionId != 0)/* && !info.isTaskMachine*/)
{
ThreadTrace matching = null;
try
{
matching = this.AllThreadTraces.Where(item => item.MachineId == info.MachineId &&
item.ActionId == info.ActionId).Single();
}
catch (Exception)
{
//TODO: check correctness
//In case entry and exit functions not defined.
//IO.PrintLine("Skipping entry/exit actions: " + mt.MachineId + " " + mt.ActionId + " " + mt.ActionName);
continue;
}
Node cn = new CActBegin(matching.MachineId, matching.ActionName,
matching.ActionId, info.EventName, info.EventId);
if(matching.ActionId == 1)
{
((CActBegin)cn).IsStart = true;
}
cn.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn);
if(cLatestAction != null)
{
this.CGraph.AddEdge(new Edge(cLatestAction, cn));
}
Node cLatest = cn;
cLatestAction = cn;
bool createNew = false;
foreach (ActionInstr ins in matching.Accesses)
{
// User trace send event.
Node cn1;
if (createNew)
{
Node cnn = new CActBegin(matching.MachineId, matching.ActionName,
matching.ActionId, info.EventName, info.EventId);
cnn.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cnn.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cnn);
cn = cnn;
this.CGraph.AddEdge(new Edge(cLatest, cn));
createNew = false;
cLatest = cn;
}
if (ins.IsSend)
{
MachineActionInfo machineSend = machineTrace.Where(
item => item.MachineId == matching.MachineId &&
item.SendId == ins.SendId).Single();
cn1 = new SendEvent(machineSend.MachineId, machineSend.SendId,
machineSend.TargetMachineId, machineSend.EventName, machineSend.EventId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace create machine.
else if (ins.IsCreate)
{
cn1 = new CreateMachine(ins.CreateMachineId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace task creation.
else if (ins.IsTask)
{
cn1 = new CreateTask(ins.TaskId);
cn1.VectorClock = new int[this.VcCount];
currentMachineVC++;
try
{
cn1.VectorClock[info.MachineId] = currentMachineVC;
}
catch (Exception ex)
{
IO.PrintLine("failed: " + this.VcCount + " " + info.MachineId);
IO.PrintLine(ex.ToString());
Environment.Exit(Environment.ExitCode);
}
this.CGraph.AddVertex(cn1);
this.CGraph.AddEdge(new Edge(cLatest, cn1));
createNew = true;
}
// User trace reads/writes.
else
{
((CActBegin)cn).Addresses.Add(new MemAccess(ins.IsWrite, ins.Location,
ins.ObjHandle, ins.Offset, ins.SrcLocation, info.MachineId));
cn1 = cn;
}
cLatest = cn1;
cLatestAction = cn1;
}
}
}
}