diff options
Diffstat (limited to 'tools/perf/util/python.c')
-rw-r--r-- | tools/perf/util/python.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 6f9728d365ae..cf1128435022 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -670,6 +670,71 @@ static PyObject *pyrf_pmu__name(PyObject *self) return PyUnicode_FromString(ppmu->pmu->name); } +static bool add_to_dict(PyObject *dict, const char *key, const char *value) +{ + PyObject *pkey, *pvalue; + bool ret; + + if (value == NULL) + return true; + + pkey = PyUnicode_FromString(key); + pvalue = PyUnicode_FromString(value); + + ret = pkey && pvalue && PyDict_SetItem(dict, pkey, pvalue) == 0; + Py_XDECREF(pkey); + Py_XDECREF(pvalue); + return ret; +} + +static int pyrf_pmu__events_cb(void *state, struct pmu_event_info *info) +{ + PyObject *py_list = state; + PyObject *dict = PyDict_New(); + + if (!dict) + return -ENOMEM; + + if (!add_to_dict(dict, "name", info->name) || + !add_to_dict(dict, "alias", info->alias) || + !add_to_dict(dict, "scale_unit", info->scale_unit) || + !add_to_dict(dict, "desc", info->desc) || + !add_to_dict(dict, "long_desc", info->long_desc) || + !add_to_dict(dict, "encoding_desc", info->encoding_desc) || + !add_to_dict(dict, "topic", info->topic) || + !add_to_dict(dict, "event_type_desc", info->event_type_desc) || + !add_to_dict(dict, "str", info->str) || + !add_to_dict(dict, "deprecated", info->deprecated ? "deprecated" : NULL) || + PyList_Append(py_list, dict) != 0) { + Py_DECREF(dict); + return -ENOMEM; + } + Py_DECREF(dict); + return 0; +} + +static PyObject *pyrf_pmu__events(PyObject *self) +{ + struct pyrf_pmu *ppmu = (void *)self; + PyObject *py_list = PyList_New(0); + int ret; + + if (!py_list) + return NULL; + + ret = perf_pmu__for_each_event(ppmu->pmu, + /*skip_duplicate_pmus=*/false, + py_list, + pyrf_pmu__events_cb); + if (ret) { + Py_DECREF(py_list); + errno = -ret; + PyErr_SetFromErrno(PyExc_OSError); + return NULL; + } + return py_list; +} + static PyObject *pyrf_pmu__repr(PyObject *self) { struct pyrf_pmu *ppmu = (void *)self; @@ -681,6 +746,12 @@ static const char pyrf_pmu__doc[] = PyDoc_STR("perf Performance Monitoring Unit static PyMethodDef pyrf_pmu__methods[] = { { + .ml_name = "events", + .ml_meth = (PyCFunction)pyrf_pmu__events, + .ml_flags = METH_NOARGS, + .ml_doc = PyDoc_STR("Returns a sequence of events encoded as a dictionaries.") + }, + { .ml_name = "name", .ml_meth = (PyCFunction)pyrf_pmu__name, .ml_flags = METH_NOARGS, |