// Attach the debug engine to a program.
int IDebugEngine2.Attach(IDebugProgram2[] rgpPrograms, IDebugProgramNode2[] rgpProgramNodes, uint celtPrograms, IDebugEventCallback2 ad7Callback, enum_ATTACH_REASON dwReason)
{
Debug.Assert(Worker.MainThreadId == Worker.CurrentThreadId);
Debug.Assert(m_ad7ProgramId == Guid.Empty);
if (celtPrograms != 1)
{
Debug.Fail("SampleEngine only expects to see one program in a process");
throw new ArgumentException();
}
try
{
int processId = EngineUtils.GetProcessId(rgpPrograms[0]);
if (processId == 0)
{
return(Constants.E_NOTIMPL); // sample engine only supports system processes
}
EngineUtils.RequireOk(rgpPrograms[0].GetProgramId(out m_ad7ProgramId));
// Attach can either be called to attach to a new process, or to complete an attach
// to a launched process
if (m_pollThread == null)
{
// We are being asked to debug a process when we currently aren't debugging anything
m_pollThread = new WorkerThread();
m_engineCallback = new EngineCallback(this, ad7Callback);
// Complete the win32 attach on the poll thread
m_pollThread.RunOperation(new Operation(delegate
{
m_debuggedProcess = Worker.AttachToProcess(m_engineCallback, processId);
}));
m_pollThread.SetDebugProcess(m_debuggedProcess);
}
else
{
if (processId != m_debuggedProcess.Id)
{
Debug.Fail("Asked to attach to a process while we are debugging");
return(Constants.E_FAIL);
}
m_pollThread.SetDebugProcess(m_debuggedProcess);
}
AD7EngineCreateEvent.Send(this);
AD7ProgramCreateEvent.Send(this);
// start polling for debug events on the poll thread
m_pollThread.RunOperationAsync(new Operation(delegate
{
m_debuggedProcess.ResumeEventPump();
}));
return(Constants.S_OK);
}
catch (ComponentException e)
{
return(e.HResult);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}