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-rw-r--r--Modules/gcmodule.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index ed846cc..0badc23 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -548,10 +548,17 @@ gc_collect(PyObject *self, PyObject *args)
if (!PyArg_ParseTuple(args, ":collect")) /* check no args */
return NULL;
- generation = 2;
- gc_list_merge(&_PyGC_generation0, &generation2);
- gc_list_merge(&generation1, &generation2);
- n = collect(&generation2, &generation2);
+ if (collecting) {
+ n = 0; /* already collecting, don't do anything */
+ }
+ else {
+ collecting = 1;
+ generation = 2;
+ gc_list_merge(&_PyGC_generation0, &generation2);
+ gc_list_merge(&generation1, &generation2);
+ n = collect(&generation2, &generation2);
+ collecting = 0;
+ }
return Py_BuildValue("l", n);
}