How do I make a thread dump in .NET ? (a la JVM thread dumps)

Question

I have found no way of dumping the stack on all threads in .NET. Neither a signal to be send to the process nor programatic access to all the threads. I can only get access to t

Answer 1

I wrote a dumper for a project i worked on in the past:

void CrashHandler::WriteThreadInfo(StringWriter* sw, ArrayList* threads, String* type)
{
    sw->WriteLine(type);

    IEnumerator* ie = threads->GetEnumerator();
    while(ie->MoveNext())
    {
        botNETThread* bnt = static_cast(ie->Current);
        if(!bnt->IsAlive) continue;
        sw->WriteLine(String::Concat(S"ORIGIN ASSEMBLY: ", bnt->Assembly->FullName));
        sw->WriteLine(String::Concat(S"THREAD NAME: ", (bnt->Name && bnt->Name->Length)?bnt->Name:S"Unnamed thread"));

        sw->Write(GetStackTrace(bnt->_thread));
        sw->WriteLine();
        sw->WriteLine();
    }
}

String* CrashHandler::GetStackTrace(Thread* t)
{

    System::Diagnostics::StackTrace __gc * trace1 = __gc new System::Diagnostics::StackTrace(t, true);

    System::String __gc * text1 = System::Environment::NewLine;
    System::Text::StringBuilder __gc * builder1 = __gc new System::Text::StringBuilder(255);
    for (System::Int32 num1 = 0; (num1 < trace1->FrameCount); num1++)
    {
            System::Diagnostics::StackFrame __gc * frame1 = trace1->GetFrame(num1);
            builder1->Append(S"   at ");
            System::Reflection::MethodBase __gc * base1 = frame1->GetMethod();
            System::Type __gc * type1 = base1->DeclaringType;
            if (type1 != 0)
            {
                System::String __gc * text2 = type1->Namespace;
                if (text2 != 0)
                {
                        builder1->Append(text2);
                        if (builder1 != 0)
                        {
                            builder1->Append(S".");
                        }
                }
                builder1->Append(type1->Name);
                builder1->Append(S".");
            }
            builder1->Append(base1->Name);
            builder1->Append(S"(");
            System::Reflection::ParameterInfo __gc * infoArray1 __gc [] = base1->GetParameters();
            for (System::Int32 num2 = 0; (num2 < infoArray1->Length); num2++)
            {
                System::String __gc * text3 = S"";
                if (infoArray1[num2]->ParameterType != 0)
                {
                        text3 = infoArray1[num2]->ParameterType->Name;
                }
                builder1->Append(System::String::Concat(((num2 != 0) ? S", " : S""), text3, S" ", infoArray1[num2]->Name));
            }
            builder1->Append(S")");
            if (frame1->GetILOffset() != -1)
            {
                System::String __gc * text4 = 0;
                try
                {
                        text4 = frame1->GetFileName();
                }
                catch (System::Security::SecurityException*)
                {
                }
                if (text4 != 0)
                {
                        builder1->Append(System::String::Concat(S" in ", text4, S":line ", frame1->GetFileLineNumber().ToString()));
                }
            }
            if (num1 != (trace1->FrameCount - 1))
            {
                builder1->Append(text1);
            }
    }
    return builder1->ToString();



}

You can use Process.GetCurrentProcess().Threads to get threads

And I know i spasted Managed C++ but its easy enough to follow. I take an arraylist of threads because for my purpose I had catagorized my threads. And yes i used previously written stack frame code as I was new to MC++ at the time :)

The entire file is here. This was for a Diablo II botting engine I wrote some time ago.