// Attach the debug engine to a program.
int IDebugEngine2.Attach(IDebugProgram2[] rgpPrograms, IDebugProgramNode2[] rgpProgramNodes, uint celtPrograms, IDebugEventCallback2 ad7Callback, enum_ATTACH_REASON dwReason)
{
Debug.WriteLine("PythonEngine Attach Begin " + GetHashCode());
AssertMainThread();
Debug.Assert(_ad7ProgramId == Guid.Empty);
if (celtPrograms != 1)
{
Debug.Fail("Python debugging only supports one program in a process");
throw new ArgumentException();
}
int processId = EngineUtils.GetProcessId(rgpPrograms[0]);
if (processId == 0)
{
// engine only supports system processes
Debug.WriteLine("PythonEngine failed to get process id during attach");
return(VSConstants.E_NOTIMPL);
}
EngineUtils.RequireOk(rgpPrograms[0].GetProgramId(out _ad7ProgramId));
// Attach can either be called to attach to a new process, or to complete an attach
// to a launched process
if (_process == null)
{
// TODO: Where do we get the language version from?
_events = ad7Callback;
var attachRes = PythonProcess.TryAttach(processId, out _process);
if (attachRes != ConnErrorMessages.None)
{
string msg;
switch (attachRes)
{
case ConnErrorMessages.CannotInjectThread: msg = "Cannot create thread in debuggee process"; break;
case ConnErrorMessages.CannotOpenProcess: msg = "Cannot open process for debugging"; break;
case ConnErrorMessages.InterpreterNotInitialized: msg = "Python interpreter has not been initialized in this process"; break;
case ConnErrorMessages.LoadDebuggerBadDebugger: msg = "Failed to load debugging script (incorrect version of script?)"; break;
case ConnErrorMessages.LoadDebuggerFailed: msg = "Failed to compile debugging script"; break;
case ConnErrorMessages.OutOfMemory: msg = "Out of memory"; break;
case ConnErrorMessages.PythonNotFound: msg = "Python interpreter not found"; break;
case ConnErrorMessages.TimeOut: msg = "Timeout while attaching"; break;
case ConnErrorMessages.UnknownVersion: msg = "Unknown Python version loaded in process"; break;
case ConnErrorMessages.SysNotFound: msg = "sys module not found"; break;
case ConnErrorMessages.SysSetTraceNotFound: msg = "settrace not found in sys module"; break;
case ConnErrorMessages.PyDebugAttachNotFound: msg = "Cannot find PyDebugAttach.dll at " + attachRes; break;
default: msg = "Unknown error"; break;
}
MessageBox.Show("Failed to attach debugger: " + msg);
return(VSConstants.E_FAIL);
}
AttachEvents(_process);
_attached = true;
}
else
{
if (processId != _process.Id)
{
Debug.Fail("Asked to attach to a process while we are debugging");
return(VSConstants.E_FAIL);
}
_attached = false;
}
AD7EngineCreateEvent.Send(this);
lock (_syncLock) {
_programCreated = true;
AD7ProgramCreateEvent.Send(this);
if (_processLoadedThread != null)
{
SendLoadComplete(_processLoadedThread);
}
}
Debug.WriteLine("PythonEngine Attach returning S_OK");
return(VSConstants.S_OK);
}
public static void Send(AD7Engine engine)
{
AD7EngineCreateEvent eventObject = new AD7EngineCreateEvent(engine);
engine.Send(eventObject, IID, null, null);
}
public static void Send(AD7Engine engine) {
AD7EngineCreateEvent eventObject = new AD7EngineCreateEvent(engine);
engine.Send(eventObject, IID, null, null);
}
