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gh-91053: make func watcher tests resilient to other func watchers #106286

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Jul 3, 2023
Merged

gh-91053: make func watcher tests resilient to other func watchers #106286

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23 changes: 11 additions & 12 deletions Modules/_testcapi/watchers.c
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Original file line number Diff line number Diff line change
Expand Up @@ -432,9 +432,9 @@ allocate_too_many_code_watchers(PyObject *self, PyObject *args)

// Test function watchers

#define NUM_FUNC_WATCHERS 2
static PyObject *pyfunc_watchers[NUM_FUNC_WATCHERS];
static int func_watcher_ids[NUM_FUNC_WATCHERS] = {-1, -1};
#define NUM_TEST_FUNC_WATCHERS 2
static PyObject *pyfunc_watchers[NUM_TEST_FUNC_WATCHERS];
static int func_watcher_ids[NUM_TEST_FUNC_WATCHERS] = {-1, -1};

static PyObject *
get_id(PyObject *obj)
Expand Down Expand Up @@ -508,7 +508,7 @@ second_func_watcher_callback(PyFunction_WatchEvent event,
return call_pyfunc_watcher(pyfunc_watchers[1], event, func, new_value);
}

static PyFunction_WatchCallback func_watcher_callbacks[NUM_FUNC_WATCHERS] = {
static PyFunction_WatchCallback func_watcher_callbacks[NUM_TEST_FUNC_WATCHERS] = {
first_func_watcher_callback,
second_func_watcher_callback
};
Expand All @@ -533,26 +533,25 @@ add_func_watcher(PyObject *self, PyObject *func)
return NULL;
}
int idx = -1;
for (int i = 0; i < NUM_FUNC_WATCHERS; i++) {
for (int i = 0; i < NUM_TEST_FUNC_WATCHERS; i++) {
if (func_watcher_ids[i] == -1) {
idx = i;
break;
}
}
if (idx == -1) {
PyErr_SetString(PyExc_RuntimeError, "no free watchers");
return NULL;
}
PyObject *result = PyLong_FromLong(idx);
if (result == NULL) {
PyErr_SetString(PyExc_RuntimeError, "no free test watchers");
return NULL;
}
func_watcher_ids[idx] = PyFunction_AddWatcher(func_watcher_callbacks[idx]);
if (func_watcher_ids[idx] < 0) {
Py_DECREF(result);
return NULL;
}
pyfunc_watchers[idx] = Py_NewRef(func);
PyObject *result = PyLong_FromLong(func_watcher_ids[idx]);
if (result == NULL) {
return NULL;
}
return result;
}

Expand All @@ -569,7 +568,7 @@ clear_func_watcher(PyObject *self, PyObject *watcher_id_obj)
return NULL;
}
int idx = -1;
for (int i = 0; i < NUM_FUNC_WATCHERS; i++) {
for (int i = 0; i < NUM_TEST_FUNC_WATCHERS; i++) {
if (func_watcher_ids[i] == wid) {
idx = i;
break;
Expand Down
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