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Remove "referents" structure (it's not needed). Check return value

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of PyList_Append.
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Neil Schemenauer 2001-08-10 14:46:47 +00:00
parent a8b5f7d178
commit 17e7be60b4
1 changed files with 17 additions and 20 deletions
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37
Modules/gcmodule.c
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@ -677,51 +677,48 @@ gc_get_thresh(PyObject *self, PyObject *args)
return Py_BuildValue("(iii)", threshold0, threshold1, threshold2);
}
struct referents{
PyObject *objs;
int seen;
};
static int
referentsvisit(PyObject* obj, struct referents* refs)
referentsvisit(PyObject* obj, PyObject *objs)
{
if (PySequence_Contains (refs->objs, obj)) {
refs->seen = 1;
if (PySequence_Contains(objs, obj)) {
return 1;
}
return 0;
}
static void
static int
gc_referents_for(PyObject *objs, PyGC_Head *list, PyObject *resultlist)
{
PyGC_Head *gc;
PyObject *obj;
traverseproc traverse;
struct referents refs = {objs, 0};
for (gc = list->gc_next; gc != list; gc = gc->gc_next){
obj = PyObject_FROM_GC(gc);
for (gc = list->gc_next; gc != list; gc = gc->gc_next) {
obj = PyObject_FROM_GC(gc);
traverse = obj->ob_type->tp_traverse;
if (obj == objs || obj == resultlist)
continue;
if (traverse(obj, (visitproc)referentsvisit, &refs)) {
PyList_Append(resultlist, obj);
refs.seen = 0;
if (traverse(obj, (visitproc)referentsvisit, objs)) {
if (PyList_Append(resultlist, obj) < 0)
return 0; /* error */
}
}
return 1; /* no error */
}
static char gc_get_referents__doc__[]=
"get_referents(*objs) -> list\n\
Return the list of objects that directly refer to any of objs.";
static PyObject*
gc_get_referents(PyObject *self, PyObject* args)
static PyObject *
gc_get_referents(PyObject *self, PyObject *args)
{
PyObject *result = PyList_New(0);
gc_referents_for(args, &generation0, result);
gc_referents_for(args, &generation1, result);
gc_referents_for(args, &generation2, result);
if (!(gc_referents_for(args, &generation0, result) &&
gc_referents_for(args, &generation1, result) &&
gc_referents_for(args, &generation2, result))) {
Py_DECREF(result);
return NULL;
}
return result;
}