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FIX: guard second usage of PyWeakref_GetObject #934

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Merged
swt2c merged 4 commits into from
Feb 7, 2026
+38 −11
Merged

FIX: guard second usage of PyWeakref_GetObject #934

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21bb17d
FIX: guard second usage of PyWeakref_GetObject
tacaswell Jan 28, 2026
12be081
MNT: Handle NULL / dead case in 3.13+ code path correctly
tacaswell Jan 29, 2026
6a06910
MNT: further simplify handling the both old and new code paths
tacaswell Jan 30, 2026
434b7b5
MNT: let weakref errors propogate up and out
tacaswell Feb 6, 2026
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MNT: further simplify handling the both old and new code paths 
obj is only `None` in the <3.13 code path if the weakref is dead.  Handle and
return early to simplify later code.
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@tacaswell
tacaswell committed Jan 30, 2026
commit 6a069108dcb3ec766a72b2b920efe0be7ec6f025
35 changes: 19 additions & 16 deletions src/share.c
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Original file line number Diff line number Diff line change
Expand Up @@ -271,31 +271,34 @@ share_cleanup_and_count_live_easies(CurlShareObject *self)
// in either case, mark as removable and
// move to the next reference
if (rc < 1 || obj == NULL) {
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PyList_Append(to_remove, wr);
Py_DECREF(wr);
continue;
PyList_Append(to_remove, wr);
Py_DECREF(wr);
continue;
}

#else
// will borrowed reference, None if object dead
obj = PyWeakref_GetObject(wr);
// Either way we need to INCREF to keep it around
Py_INCREF(obj);
#endif
if (obj != Py_None) {
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CurlObject *easy = (CurlObject *)obj;
// If not None, real object, INCREF and carry on
Py_INCREF(obj);
} else {
// otherwise mark for removal and move to the next ref
PyList_Append(to_remove, wr);
Py_DECREF(wr);
continue;
}
#endif
CurlObject *easy = (CurlObject *)obj;

if (easy && easy->share == self) {
if (self->detach_on_close) {
curl_easy_setopt(easy->handle, CURLOPT_SHARE, NULL);
easy->share = NULL;
if (easy && easy->share == self) {
if (self->detach_on_close) {
curl_easy_setopt(easy->handle, CURLOPT_SHARE, NULL);
easy->share = NULL;

PyList_Append(to_remove, wr);
} else {
has_live += 1;
}
} else {
PyList_Append(to_remove, wr);
} else {
has_live += 1;
}
} else {
PyList_Append(to_remove, wr);
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