Bruce,
Try the attached patch. You'll need to apply it to the VTK subdir
under ParaView.
Utkarsh
On Tue, May 26, 2015 at 11:29 AM, Bruce Jones
<[email protected]> wrote:
> Hi,
>
> I am trying to do some parallel programming within paraviews python shell
> and have encountered a problem. If I run the following two lines of code in
> the python shell, the result is that a whole bunch of new paraview sessions
> will be started...
>
> from multiprocessing import Pool
> pool = Pool();
>
> It appears that a new paraview session is being created for each thread of
> the thread pool. Unfortunately, I am not able to then use the thread pool to
> run functions assynchronously.
>
> Regards,
> Bruce
>
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diff --git a/Utilities/PythonInterpreter/vtkPythonStdStreamCaptureHelper.h b/Utilities/PythonInterpreter/vtkPythonStdStreamCaptureHelper.h
index 43000d3..f0b1bc4 100644
--- a/Utilities/PythonInterpreter/vtkPythonStdStreamCaptureHelper.h
+++ b/Utilities/PythonInterpreter/vtkPythonStdStreamCaptureHelper.h
@@ -54,17 +54,24 @@ struct vtkPythonStdStreamCaptureHelper
{
return vtkPythonInterpreter::ReadStdin();
}
+
+ void Close()
+ {
+ this->Flush();
+ }
};
static PyObject* vtkWrite(PyObject* self, PyObject* args);
static PyObject* vtkRead(PyObject* self, PyObject* args);
static PyObject* vtkFlush(PyObject* self, PyObject* args);
+static PyObject* vtkClose(PyObject* self, PyObject* args);
// const_cast since older versions of python are not const correct.
static PyMethodDef vtkPythonStdStreamCaptureHelperMethods[] = {
{const_cast<char*>("write"), vtkWrite, METH_VARARGS, const_cast<char*>("Dump message")},
{const_cast<char*>("readline"), vtkRead, METH_VARARGS, const_cast<char*>("Read input line")},
{const_cast<char*>("flush"), vtkFlush, METH_VARARGS, const_cast<char*>("Flush")},
+ {const_cast<char*>("close"), vtkClose, METH_VARARGS, const_cast<char*>("Close and Flush")},
{0, 0, 0, 0}
};
@@ -191,6 +198,23 @@ static PyObject* vtkFlush(PyObject* self, PyObject* args)
return Py_BuildValue(const_cast<char*>(""));
}
+static PyObject* vtkClose(PyObject* self, PyObject* args)
+{
+ (void)args;
+ if(!self || !PyObject_TypeCheck(self, &vtkPythonStdStreamCaptureHelperType))
+ {
+ return 0;
+ }
+
+ vtkPythonStdStreamCaptureHelper* wrapper =
+ reinterpret_cast<vtkPythonStdStreamCaptureHelper*>(self);
+ if (wrapper)
+ {
+ wrapper->Close();
+ }
+ return Py_BuildValue(const_cast<char*>(""));
+}
+
static vtkPythonStdStreamCaptureHelper* NewPythonStdStreamCaptureHelper(bool for_stderr=false)
{
if(PyType_Ready(&vtkPythonStdStreamCaptureHelperType) < 0)
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the ParaView Wiki at:
http://paraview.org/Wiki/ParaView
Search the list archives at: http://markmail.org/search/?q=ParaView
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/paraview
