28423703495

Committed 30 Jun 2026 05:59AM UTC coverage: 51.998% (-0.3%) from 52.278%

Build # 28423703495

Build Type

Pull #83

github

Committed by

web-flow

Commit Message

Merge fb542a938 into 2efed6649

Pull Request Pull Request #83: refactor and improve code QoL

Coverage Stats

37282 of 93303 branches covered (39.96%)

Branch coverage included in aggregate %.

801 of 1525 new or added lines in 78 files covered. (52.52%)

98 existing lines in 37 files now uncovered.

33674 of 43157 relevant lines covered (78.03%)

20306.85 hits per line

Source File
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50.64

/src/dftracer/utils/python/streaming_iterator.cpp

#include <dftracer/utils/core/common/config.h>
#include <dftracer/utils/python/py_type_helpers.h>
#ifdef DFTRACER_UTILS_ENABLE_ARROW

#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <dftracer/utils/python/streaming_iterator.h>
#include <dftracer/utils/python/trace_reader_iterator.h>

namespace dftracer::utils::python {

static PyObject* ArrowStreamingIterator_new(PyTypeObject* type,
                                            PyObject* /*args*/,
                                            PyObject* /*kwds*/) {
    ArrowStreamingIteratorObject* self =
        (ArrowStreamingIteratorObject*)type->tp_alloc(type, 0);
    if (self) {
        // Allocate C++ state separately to avoid layout issues
        self->cpp_state = new ArrowStreamingIteratorState();
    }
    return (PyObject*)self;
}

static void ArrowStreamingIterator_dealloc(ArrowStreamingIteratorObject* self) {
    if (self->cpp_state) {
        // Cancel the stream if still running
        if (self->cpp_state->cancel) {
            self->cpp_state->cancel();
        }
        delete self->cpp_state;
        self->cpp_state = nullptr;
    }
    Py_TYPE(self)->tp_free((PyObject*)self);
}

static PyObject* ArrowStreamingIterator_iter(PyObject* self) {
    Py_INCREF(self);
    return self;
}

static PyObject* ArrowStreamingIterator_next(
    ArrowStreamingIteratorObject* self) {
    if (!self->cpp_state || !self->cpp_state->pull_next) {
        PyErr_SetString(PyExc_RuntimeError, "Iterator not initialized");
        return NULL;
    }

    std::optional<ArrowExportResult> result;
    bool had_error = false;
    std::string error_msg;

    Py_BEGIN_ALLOW_THREADS try {
        result = self->cpp_state->pull_next();
    } catch (const std::exception& e) {
        had_error = true;
        error_msg = e.what();
    } catch (...) {
        had_error = true;
        error_msg = "Unknown error in streaming iterator";
    }
    Py_END_ALLOW_THREADS

        if (had_error) {
        PyErr_SetString(PyExc_RuntimeError, error_msg.c_str());
        return NULL;
    }

    if (!result.has_value()) {
        // Check for error
        if (self->cpp_state->get_error) {
            auto ex = self->cpp_state->get_error();
            if (ex) {
                try {
                    std::rethrow_exception(ex);
                } catch (const std::exception& e) {
                    PyErr_SetString(PyExc_RuntimeError, e.what());
                    return NULL;
                } catch (...) {
                    PyErr_SetString(PyExc_RuntimeError,
                                    "Unknown error in streaming iterator");
                    return NULL;
                }
            }
        }
        // Normal completion
        return NULL;  // StopIteration
    }

    // Wrap the ArrowExportResult in an ArrowBatchCapsule
    ArrowBatchCapsuleObject* obj =
        (ArrowBatchCapsuleObject*)ArrowBatchCapsuleType.tp_alloc(
            &ArrowBatchCapsuleType, 0);
    if (!obj) return NULL;
    obj->result = new ArrowExportResult(std::move(*result));
    return (PyObject*)obj;
}

static PyObject* ArrowStreamingIterator_cancel(
    ArrowStreamingIteratorObject* self, PyObject* Py_UNUSED(args)) {
    if (self->cpp_state && self->cpp_state->cancel) {
        self->cpp_state->cancel();
    }
    Py_RETURN_NONE;
}

static PyMethodDef ArrowStreamingIterator_methods[] = {
    {"cancel", (PyCFunction)ArrowStreamingIterator_cancel, METH_NOARGS,
     "Cancel the streaming iterator."},
    {NULL}};

PyTypeObject ArrowStreamingIteratorType = {
    PyVarObject_HEAD_INIT(NULL, 0) "dftracer_utils_ext._ArrowStreamingIterator",
    sizeof(ArrowStreamingIteratorObject),       /* tp_basicsize */
    0,                                          /* tp_itemsize */
    (destructor)ArrowStreamingIterator_dealloc, /* tp_dealloc */
    0,                                          /* tp_vectorcall_offset */
    0,                                          /* tp_getattr */
    0,                                          /* tp_setattr */
    0,                                          /* tp_as_async */
    0,                                          /* tp_repr */
    0,                                          /* tp_as_number */
    0,                                          /* tp_as_sequence */
    0,                                          /* tp_as_mapping */
    0,                                          /* tp_hash */
    0,                                          /* tp_call */
    0,                                          /* tp_str */
    0,                                          /* tp_getattro */
    0,                                          /* tp_setattro */
    0,                                          /* tp_as_buffer */
    Py_TPFLAGS_DEFAULT,                         /* tp_flags */
    "Streaming Arrow batch iterator.\n\n"
    "Yields ArrowBatch objects as they become available from the C++ "
    "pipeline.\n"
    "Call cancel() to stop the stream early.", /* tp_doc */
    0,                                         /* tp_traverse */
    0,                                         /* tp_clear */
    0,                                         /* tp_richcompare */
    0,                                         /* tp_weaklistoffset */
    ArrowStreamingIterator_iter,               /* tp_iter */
    (iternextfunc)ArrowStreamingIterator_next, /* tp_iternext */
    ArrowStreamingIterator_methods,            /* tp_methods */
    0,                                         /* tp_members */
    0,                                         /* tp_getset */
    0,                                         /* tp_base */
    0,                                         /* tp_dict */
    0,                                         /* tp_descr_get */
    0,                                         /* tp_descr_set */
    0,                                         /* tp_dictoffset */
    0,                                         /* tp_init */
    0,                                         /* tp_alloc */
    ArrowStreamingIterator_new,                /* tp_new */
};

int init_arrow_streaming_iterator(PyObject* m) {
    if (register_type(m, &ArrowStreamingIteratorType,
                      "_ArrowStreamingIterator") < 0)
        return -1;

    return 0;
}

}  // namespace dftracer::utils::python

#endif  // DFTRACER_UTILS_ENABLE_ARROW

1	#include <dftracer/utils/core/common/config.h>
2	#include <dftracer/utils/python/py_type_helpers.h>
3	#ifdef DFTRACER_UTILS_ENABLE_ARROW
4
5	#define PY_SSIZE_T_CLEAN
6	#include <Python.h>
7	#include <dftracer/utils/python/streaming_iterator.h>
8	#include <dftracer/utils/python/trace_reader_iterator.h>
9
10	namespace dftracer::utils::python {
11
12	static PyObject* ArrowStreamingIterator_new(PyTypeObject* type,	6✔
13	PyObject* /args/,
14	PyObject* /kwds/) {
15	ArrowStreamingIteratorObject* self =	3✔
16	(ArrowStreamingIteratorObject*)type->tp_alloc(type, 0);	6✔
17	if (self) {	6✔
18	// Allocate C++ state separately to avoid layout issues
19	self->cpp_state = new ArrowStreamingIteratorState();	6✔
20	}	3✔
21	return (PyObject*)self;	6✔
22	}
23
24	static void ArrowStreamingIterator_dealloc(ArrowStreamingIteratorObject* self) {	6✔
25	if (self->cpp_state) {	6✔
26	// Cancel the stream if still running
27	if (self->cpp_state->cancel) {	6✔
28	self->cpp_state->cancel();	6✔
29	}	3✔
30	delete self->cpp_state;	6✔
31	self->cpp_state = nullptr;	6✔
32	}	3✔
33	Py_TYPE(self)->tp_free((PyObject*)self);	6✔
34	}	6✔
35
36	static PyObject* ArrowStreamingIterator_iter(PyObject* self) {	6!
37	Py_INCREF(self);	3✔
38	return self;	6✔
39	}
40
41	static PyObject* ArrowStreamingIterator_next(	16✔
42	ArrowStreamingIteratorObject* self) {
43	if (!self->cpp_state \|\| !self->cpp_state->pull_next) {	16!
44	PyErr_SetString(PyExc_RuntimeError, "Iterator not initialized");	×
45	return NULL;	×
46	}
47
48	std::optional<ArrowExportResult> result;	16✔
49	bool had_error = false;	16✔
50	std::string error_msg;	16✔
51
52	Py_BEGIN_ALLOW_THREADS try {	16!
53	result = self->cpp_state->pull_next();	16!
54	} catch (const std::exception& e) {	8!
55	had_error = true;	×
56	error_msg = e.what();	×
57	} catch (...) {	×
58	had_error = true;	×
59	error_msg = "Unknown error in streaming iterator";	×
60	}	×
61	Py_END_ALLOW_THREADS	16!
62
63	if (had_error) {	16!
64	PyErr_SetString(PyExc_RuntimeError, error_msg.c_str());	×
65	return NULL;	×
66	}
67
68	if (!result.has_value()) {	16✔
69	// Check for error
70	if (self->cpp_state->get_error) {	6!
71	auto ex = self->cpp_state->get_error();	6!
72	if (ex) {	6✔
73	try {
74	std::rethrow_exception(ex);	×
75	} catch (const std::exception& e) {	×
76	PyErr_SetString(PyExc_RuntimeError, e.what());	×
77	return NULL;	×
78	} catch (...) {	×
79	PyErr_SetString(PyExc_RuntimeError,	×
80	"Unknown error in streaming iterator");
81	return NULL;	×
82	}	×
83	}
84	}	6✔
85	// Normal completion
86	return NULL; // StopIteration	6✔
87	}
88
89	// Wrap the ArrowExportResult in an ArrowBatchCapsule
90	ArrowBatchCapsuleObject* obj =	5✔
91	(ArrowBatchCapsuleObject*)ArrowBatchCapsuleType.tp_alloc(	10!
92	&ArrowBatchCapsuleType, 0);
93	if (!obj) return NULL;	10✔
94	obj->result = new ArrowExportResult(std::move(*result));	10!
95	return (PyObject*)obj;	10✔
96	}	16✔
97
98	static PyObject* ArrowStreamingIterator_cancel(	×
99	ArrowStreamingIteratorObject* self, PyObject* Py_UNUSED(args)) {
100	if (self->cpp_state && self->cpp_state->cancel) {	×
101	self->cpp_state->cancel();	×
102	}
103	Py_RETURN_NONE;	×
104	}
105
106	static PyMethodDef ArrowStreamingIterator_methods[] = {
107	{"cancel", (PyCFunction)ArrowStreamingIterator_cancel, METH_NOARGS,
108	"Cancel the streaming iterator."},
109	{NULL}};
110
111	PyTypeObject ArrowStreamingIteratorType = {
112	PyVarObject_HEAD_INIT(NULL, 0) "dftracer_utils_ext._ArrowStreamingIterator",
113	sizeof(ArrowStreamingIteratorObject), /* tp_basicsize */
114	0, /* tp_itemsize */
115	(destructor)ArrowStreamingIterator_dealloc, /* tp_dealloc */
116	0, /* tp_vectorcall_offset */
117	0, /* tp_getattr */
118	0, /* tp_setattr */
119	0, /* tp_as_async */
120	0, /* tp_repr */
121	0, /* tp_as_number */
122	0, /* tp_as_sequence */
123	0, /* tp_as_mapping */
124	0, /* tp_hash */
125	0, /* tp_call */
126	0, /* tp_str */
127	0, /* tp_getattro */
128	0, /* tp_setattro */
129	0, /* tp_as_buffer */
130	Py_TPFLAGS_DEFAULT, /* tp_flags */
131	"Streaming Arrow batch iterator.\n\n"
132	"Yields ArrowBatch objects as they become available from the C++ "
133	"pipeline.\n"
134	"Call cancel() to stop the stream early.", /* tp_doc */
135	0, /* tp_traverse */
136	0, /* tp_clear */
137	0, /* tp_richcompare */
138	0, /* tp_weaklistoffset */
139	ArrowStreamingIterator_iter, /* tp_iter */
140	(iternextfunc)ArrowStreamingIterator_next, /* tp_iternext */
141	ArrowStreamingIterator_methods, /* tp_methods */
142	0, /* tp_members */
143	0, /* tp_getset */
144	0, /* tp_base */
145	0, /* tp_dict */
146	0, /* tp_descr_get */
147	0, /* tp_descr_set */
148	0, /* tp_dictoffset */
149	0, /* tp_init */
150	0, /* tp_alloc */
151	ArrowStreamingIterator_new, /* tp_new */
152	};
153
154	int init_arrow_streaming_iterator(PyObject* m) {	2✔
155	if (register_type(m, &ArrowStreamingIteratorType,	2✔
156	"_ArrowStreamingIterator") < 0)	2✔
UNCOV 157	return -1;	×
158
159	return 0;	2✔
160	}	1✔
161
162	} // namespace dftracer::utils::python
163
164	#endif // DFTRACER_UTILS_ENABLE_ARROW

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