+#define NONE ({ Py_INCREF(Py_None); Py_None; })
+
+static int
+get_rspec(PyObject *resources, rspec_t *rspec)
+{
+ int result = -1;
+ PyObject *cpu_share;
+ PyObject *sched_flags = NULL;
+
+ if (!PyMapping_Check(resources))
+ {
+ PyErr_SetString(PyExc_TypeError, "invalid rspec");
+ return -1;
+ }
+
+ /* get CPU share */
+ if (!(cpu_share = PyMapping_GetItemString(resources, "nm_cpu_share")))
+ return -1;
+ if (!PyInt_Check(cpu_share))
+ {
+ PyErr_SetString(PyExc_TypeError, "nm_cpu_share not an integer");
+ goto out;
+ }
+ rspec->cpu_share = PyInt_AS_LONG(cpu_share);
+
+ /* check whether this share should be guaranteed */
+ rspec->cpu_sched_flags = VC_VXF_SCHED_FLAGS;
+ result = 0;
+ if ((sched_flags = PyMapping_GetItemString(resources, "nm_sched_flags")))
+ {
+ const char *flagstr;
+
+ if (!(flagstr = PyString_AsString(sched_flags)))
+ result = -1;
+ else if (!strcmp(flagstr, "guaranteed"))
+ rspec->cpu_sched_flags &= ~VC_VXF_SCHED_SHARE;
+ Py_DECREF(sched_flags);
+ }
+ else
+ /* not an error if nm_sched_flags is missing */
+ PyErr_Clear();
+
+ out:
+ Py_DECREF(cpu_share);
+
+ return result;
+}
+