On Nov 9, 7:36 pm, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote:
> En Tue, 06 Nov 2007 23:25:17 -0300, <[EMAIL PROTECTED]> escribió:
>
> > i naively created execution context:
> > PyObject *execcontext = PyDict_New();
> > stuffed a handle in it:
> > PyObject *ih = PyCObject_FromVoidPtr(handle, NULL);
> > int st= PyDict_SetItemString(res, "interp", ih);
>
> What's `res`?
> One should make a lot of assumptions about your code because it's not
> complete. Please post a minimal complete example showing your problem.
>
> --
> Gabriel Genellina
for some reason i can't get compilestring/run_string to work in my
example.
compile the code below
and from the command line type
import node
print node.root()
you'd get:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1218588544 (LWP 13539)]
0x08048e37 in pyNode_root (self=0x0, args=0xb759d02c) at main.cpp:17
17 assert(PyCObject_Check(co));
(gdb) p co
$1 = (PyObject *) 0x0
because interp is not on globals
#undef _POSIX_C_SOURCE
#include <Python.h>
#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
#define PyMODINIT_FUNC void
#endif
PyObject *g_mainmod;
PyObject *g_maindict;
bool worked = false;
static
PyObject *
pyNode_root(PyObject *self, PyObject *args)
{
PyObject *dict = PyEval_GetGlobals();
PyObject *co = PyDict_GetItemString(dict, "interp");
assert(PyCObject_Check(co));
void *interp = PyCObject_AsVoidPtr(co);
assert(interp);
// ...
printf("root() worked\n");
worked=true;
return 0;
}
static PyMethodDef module_methods[] = {
/* no need to create pyNode from python programs
{"new", pyNode_new, METH_VARARGS,
PyDoc_STR("new() -> new Node object")},
*/
{"root", pyNode_root, METH_VARARGS,
PyDoc_STR("root('dm') -> wrapper for the rootnode")},
{NULL} /* Sentinel */
};
int
main()
{
Py_Initialize();
g_mainmod = PyImport_AddModule("__main__");
assert(g_mainmod);
g_maindict = PyModule_GetDict(g_mainmod);
assert(g_maindict);
Py_INCREF(g_maindict); // it was a borrowed reference
PyObject* m = Py_InitModule("node", module_methods);
if (m == NULL)
return 1;
PyObject *exec = PyDict_New();
void *handle = (void*)0xdeadc0ed;
PyObject *ih = PyCObject_FromVoidPtr(handle, NULL);
//Py_INCREF(ih);
int st= PyDict_SetItemString(exec, "interp", ih);
assert(!st);
PyRun_InteractiveLoop(stdin, "<stdin>");
}
--
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