/src/cpython/Python/structmember.c

Source (jump to first uncovered line)

/* Map C struct members to Python object attributes */

#include "Python.h"
#include "pycore_abstract.h"      // _PyNumber_Index()
#include "pycore_long.h"          // _PyLong_IsNegative()
#include "pycore_object.h"        // _Py_TryIncrefCompare(), FT_ATOMIC_*()
#include "pycore_critical_section.h"


static inline PyObject *
member_get_object(const char *addr, const char *obj_addr, PyMemberDef *l)
{
    PyObject *v = FT_ATOMIC_LOAD_PTR(*(PyObject **) addr);
    if (v == NULL) {
        PyErr_Format(PyExc_AttributeError,
                     "'%T' object has no attribute '%s'",
                     (PyObject *)obj_addr, l->name);
    }
    return v;
}

PyObject *
PyMember_GetOne(const char *obj_addr, PyMemberDef *l)
{
    PyObject *v;
    if (l->flags & Py_RELATIVE_OFFSET) {
        PyErr_SetString(
            PyExc_SystemError,
            "PyMember_GetOne used with Py_RELATIVE_OFFSET");
        return NULL;
    }

    const char* addr = obj_addr + l->offset;
    switch (l->type) {
    case Py_T_BOOL:
        v = PyBool_FromLong(FT_ATOMIC_LOAD_CHAR_RELAXED(*(char*)addr));
        break;
    case Py_T_BYTE:
        v = PyLong_FromLong(FT_ATOMIC_LOAD_CHAR_RELAXED(*(char*)addr));
        break;
    case Py_T_UBYTE:
        v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_UCHAR_RELAXED(*(unsigned char*)addr));
        break;
    case Py_T_SHORT:
        v = PyLong_FromLong(FT_ATOMIC_LOAD_SHORT_RELAXED(*(short*)addr));
        break;
    case Py_T_USHORT:
        v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_USHORT_RELAXED(*(unsigned short*)addr));
        break;
    case Py_T_INT:
        v = PyLong_FromLong(FT_ATOMIC_LOAD_INT_RELAXED(*(int*)addr));
        break;
    case Py_T_UINT:
        v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_UINT_RELAXED(*(unsigned int*)addr));
        break;
    case Py_T_LONG:
        v = PyLong_FromLong(FT_ATOMIC_LOAD_LONG_RELAXED(*(long*)addr));
        break;
    case Py_T_ULONG:
        v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_ULONG_RELAXED(*(unsigned long*)addr));
        break;
    case Py_T_PYSSIZET:
        v = PyLong_FromSsize_t(FT_ATOMIC_LOAD_SSIZE_RELAXED(*(Py_ssize_t*)addr));
        break;
    case Py_T_FLOAT:
        v = PyFloat_FromDouble((double)FT_ATOMIC_LOAD_FLOAT_RELAXED(*(float*)addr));
        break;
    case Py_T_DOUBLE:
        v = PyFloat_FromDouble(FT_ATOMIC_LOAD_DOUBLE_RELAXED(*(double*)addr));
        break;
    case Py_T_STRING:
        if (*(char**)addr == NULL) {
            v = Py_NewRef(Py_None);
        }
        else
            v = PyUnicode_FromString(*(char**)addr);
        break;
    case Py_T_STRING_INPLACE:
        v = PyUnicode_FromString((char*)addr);
        break;
    case Py_T_CHAR: {
        char char_val = FT_ATOMIC_LOAD_CHAR_RELAXED(*addr);
        v = PyUnicode_FromStringAndSize(&char_val, 1);
        break;
    }
    case _Py_T_OBJECT:
        v = FT_ATOMIC_LOAD_PTR(*(PyObject **) addr);
        if (v != NULL) {
#ifdef Py_GIL_DISABLED
            if (!_Py_TryIncrefCompare((PyObject **) addr, v)) {
                Py_BEGIN_CRITICAL_SECTION((PyObject *) obj_addr);
                v = FT_ATOMIC_LOAD_PTR(*(PyObject **) addr);
                Py_XINCREF(v);
                Py_END_CRITICAL_SECTION();
            }
#else
            Py_INCREF(v);
#endif
        }
        if (v == NULL) {
            v = Py_None;
        }
        break;
    case Py_T_OBJECT_EX:
        v = member_get_object(addr, obj_addr, l);
#ifndef Py_GIL_DISABLED
        Py_XINCREF(v);
#else
        if (v != NULL) {
            if (!_Py_TryIncrefCompare((PyObject **) addr, v)) {
                Py_BEGIN_CRITICAL_SECTION((PyObject *) obj_addr);
                v = member_get_object(addr, obj_addr, l);
                Py_XINCREF(v);
                Py_END_CRITICAL_SECTION();
            }
        }
#endif
        break;
    case Py_T_LONGLONG:
        v = PyLong_FromLongLong(FT_ATOMIC_LOAD_LLONG_RELAXED(*(long long *)addr));
        break;
    case Py_T_ULONGLONG:
        v = PyLong_FromUnsignedLongLong(FT_ATOMIC_LOAD_ULLONG_RELAXED(*(unsigned long long *)addr));
        break;
    case _Py_T_NONE:
        // doesn't require free-threading code path
        v = Py_NewRef(Py_None);
        break;
    default:
        PyErr_SetString(PyExc_SystemError, "bad memberdescr type");
        v = NULL;
    }
    return v;
}

#define WARN(msg)                                               \
    do {                                                        \
    if (PyErr_WarnEx(PyExc_RuntimeWarning, msg, 1) < 0)         \
        return -1;                                              \
    } while (0)

int
PyMember_SetOne(char *addr, PyMemberDef *l, PyObject *v)
{
    PyObject *oldv;
    if (l->flags & Py_RELATIVE_OFFSET) {
        PyErr_SetString(
            PyExc_SystemError,
            "PyMember_SetOne used with Py_RELATIVE_OFFSET");
        return -1;
    }

#ifdef Py_GIL_DISABLED
    PyObject *obj = (PyObject *) addr;
#endif
    addr += l->offset;

    if ((l->flags & Py_READONLY))
    {
        PyErr_SetString(PyExc_AttributeError, "readonly attribute");
        return -1;
    }
    if (v == NULL) {
        if (l->type == Py_T_OBJECT_EX) {
            /* Check if the attribute is set. */
            if (*(PyObject **)addr == NULL) {
                PyErr_SetString(PyExc_AttributeError, l->name);
                return -1;
            }
        }
        else if (l->type != _Py_T_OBJECT) {
            PyErr_SetString(PyExc_TypeError,
                            "can't delete numeric/char attribute");
            return -1;
        }
    }
    switch (l->type) {
    case Py_T_BOOL:{
        if (!PyBool_Check(v)) {
            PyErr_SetString(PyExc_TypeError,
                            "attribute value type must be bool");
            return -1;
        }
        if (v == Py_True)
            FT_ATOMIC_STORE_CHAR_RELAXED(*(char*)addr, 1);
        else
            FT_ATOMIC_STORE_CHAR_RELAXED(*(char*)addr, 0);
        break;
        }
    case Py_T_BYTE:{
        long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_CHAR_RELAXED(*(char*)addr, (char)long_val);
        /* XXX: For compatibility, only warn about truncations
           for now. */
        if ((long_val > CHAR_MAX) || (long_val < CHAR_MIN))
            WARN("Truncation of value to char");
        break;
        }
    case Py_T_UBYTE:{
        long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_UCHAR_RELAXED(*(unsigned char*)addr, (unsigned char)long_val);
        if ((long_val > UCHAR_MAX) || (long_val < 0))
            WARN("Truncation of value to unsigned char");
        break;
        }
    case Py_T_SHORT:{
        long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_SHORT_RELAXED(*(short*)addr, (short)long_val);
        if ((long_val > SHRT_MAX) || (long_val < SHRT_MIN))
            WARN("Truncation of value to short");
        break;
        }
    case Py_T_USHORT:{
        long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_USHORT_RELAXED(*(unsigned short*)addr, (unsigned short)long_val);
        if ((long_val > USHRT_MAX) || (long_val < 0))
            WARN("Truncation of value to unsigned short");
        break;
        }
    case Py_T_INT:{
        long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_INT_RELAXED(*(int *)addr, (int)long_val);
        if ((long_val > INT_MAX) || (long_val < INT_MIN))
            WARN("Truncation of value to int");
        break;
        }
    case Py_T_UINT: {
        /* XXX: For compatibility, accept negative int values
           as well. */
        v = _PyNumber_Index(v);
        if (v == NULL) {
            return -1;
        }
        if (_PyLong_IsNegative((PyLongObject *)v)) {
            long long_val = PyLong_AsLong(v);
            Py_DECREF(v);
            if (long_val == -1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_UINT_RELAXED(*(unsigned int *)addr, (unsigned int)(unsigned long)long_val);
            WARN("Writing negative value into unsigned field");
        }
        else {
            unsigned long ulong_val = PyLong_AsUnsignedLong(v);
            Py_DECREF(v);
            if (ulong_val == (unsigned long)-1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_UINT_RELAXED(*(unsigned int *)addr, (unsigned int)ulong_val);
            if (ulong_val > UINT_MAX) {
                WARN("Truncation of value to unsigned int");
            }
        }
        break;
    }
    case Py_T_LONG: {
        const long long_val = PyLong_AsLong(v);
        if ((long_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_LONG_RELAXED(*(long*)addr, long_val);
        break;
    }
    case Py_T_ULONG: {
        /* XXX: For compatibility, accept negative int values
           as well. */
        v = _PyNumber_Index(v);
        if (v == NULL) {
            return -1;
        }
        if (_PyLong_IsNegative((PyLongObject *)v)) {
            long long_val = PyLong_AsLong(v);
            Py_DECREF(v);
            if (long_val == -1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_ULONG_RELAXED(*(unsigned long *)addr, (unsigned long)long_val);
            WARN("Writing negative value into unsigned field");
        }
        else {
            unsigned long ulong_val = PyLong_AsUnsignedLong(v);
            Py_DECREF(v);
            if (ulong_val == (unsigned long)-1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_ULONG_RELAXED(*(unsigned long *)addr, ulong_val);
        }
        break;
    }
    case Py_T_PYSSIZET: {
        const Py_ssize_t ssize_val = PyLong_AsSsize_t(v);
        if ((ssize_val == (Py_ssize_t)-1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_SSIZE_RELAXED(*(Py_ssize_t*)addr, ssize_val);
        break;
    }
    case Py_T_FLOAT:{
        double double_val = PyFloat_AsDouble(v);
        if ((double_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_FLOAT_RELAXED(*(float*)addr, (float)double_val);
        break;
        }
    case Py_T_DOUBLE: {
        const double double_val = PyFloat_AsDouble(v);
        if ((double_val == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_DOUBLE_RELAXED(*(double *) addr, double_val);
        break;
    }
    case _Py_T_OBJECT:
    case Py_T_OBJECT_EX:
        Py_BEGIN_CRITICAL_SECTION(obj);
        oldv = *(PyObject **)addr;
        FT_ATOMIC_STORE_PTR_RELEASE(*(PyObject **)addr, Py_XNewRef(v));
        Py_END_CRITICAL_SECTION();
        Py_XDECREF(oldv);
        break;
    case Py_T_CHAR: {
        const char *string;
        Py_ssize_t len;

        string = PyUnicode_AsUTF8AndSize(v, &len);
        if (string == NULL || len != 1) {
            PyErr_BadArgument();
            return -1;
        }
        FT_ATOMIC_STORE_CHAR_RELAXED(*(char*)addr, string[0]);
        break;
        }
    case Py_T_STRING:
    case Py_T_STRING_INPLACE:
        PyErr_SetString(PyExc_TypeError, "readonly attribute");
        return -1;
    case Py_T_LONGLONG:{
        long long value = PyLong_AsLongLong(v);
        if ((value == -1) && PyErr_Occurred())
            return -1;
        FT_ATOMIC_STORE_LLONG_RELAXED(*(long long*)addr, value);
        break;
        }
    case Py_T_ULONGLONG: {
        v = _PyNumber_Index(v);
        if (v == NULL) {
            return -1;
        }
        if (_PyLong_IsNegative((PyLongObject *)v)) {
            long long_val = PyLong_AsLong(v);
            Py_DECREF(v);
            if (long_val == -1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_ULLONG_RELAXED(*(unsigned long long *)addr, (unsigned long long)(long long)long_val);
            WARN("Writing negative value into unsigned field");
        }
        else {
            unsigned long long ulonglong_val = PyLong_AsUnsignedLongLong(v);
            Py_DECREF(v);
            if (ulonglong_val == (unsigned long long)-1 && PyErr_Occurred()) {
                return -1;
            }
            FT_ATOMIC_STORE_ULLONG_RELAXED(*(unsigned long long *)addr, ulonglong_val);
        }
        break;
    }
    default:
        PyErr_Format(PyExc_SystemError,
                     "bad memberdescr type for %s", l->name);
        return -1;
    }
    return 0;
}

Coverage Report

Created: 2025-07-04 06:49

Line	Count	Source (jump to first uncovered line)
1
2		/* Map C struct members to Python object attributes */
3
4		#include "Python.h"
5		#include "pycore_abstract.h" // _PyNumber_Index()
6		#include "pycore_long.h" // _PyLong_IsNegative()
7		#include "pycore_object.h" // _Py_TryIncrefCompare(), FT_ATOMIC_*()
8		#include "pycore_critical_section.h"
9
10
11		static inline PyObject *
12		member_get_object(const char addr, const char obj_addr, PyMemberDef *l)
13	334	{
14	334	PyObject v = FT_ATOMIC_LOAD_PTR((PyObject **) addr);
15	334	if (v == NULL) {
16	0	PyErr_Format(PyExc_AttributeError,
17	0	"'%T' object has no attribute '%s'",
18	0	(PyObject *)obj_addr, l->name);
19	0	}
20	334	return v;
21	334	}
22
23		PyObject *
24		PyMember_GetOne(const char obj_addr, PyMemberDef l)
25	102k	{
26	102k	PyObject *v;
27	102k	if (l->flags & Py_RELATIVE_OFFSET) {
28	0	PyErr_SetString(
29	0	PyExc_SystemError,
30	0	"PyMember_GetOne used with Py_RELATIVE_OFFSET");
31	0	return NULL;
32	0	}
33
34	102k	const char* addr = obj_addr + l->offset;
35	102k	switch (l->type) {
36	0	case Py_T_BOOL:
37	0	v = PyBool_FromLong(FT_ATOMIC_LOAD_CHAR_RELAXED((char)addr));
38	0	break;
39	0	case Py_T_BYTE:
40	0	v = PyLong_FromLong(FT_ATOMIC_LOAD_CHAR_RELAXED((char)addr));
41	0	break;
42	0	case Py_T_UBYTE:
43	0	v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_UCHAR_RELAXED((unsigned char)addr));
44	0	break;
45	0	case Py_T_SHORT:
46	0	v = PyLong_FromLong(FT_ATOMIC_LOAD_SHORT_RELAXED((short)addr));
47	0	break;
48	0	case Py_T_USHORT:
49	0	v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_USHORT_RELAXED((unsigned short)addr));
50	0	break;
51	0	case Py_T_INT:
52	0	v = PyLong_FromLong(FT_ATOMIC_LOAD_INT_RELAXED((int)addr));
53	0	break;
54	0	case Py_T_UINT:
55	0	v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_UINT_RELAXED((unsigned int)addr));
56	0	break;
57	0	case Py_T_LONG:
58	0	v = PyLong_FromLong(FT_ATOMIC_LOAD_LONG_RELAXED((long)addr));
59	0	break;
60	0	case Py_T_ULONG:
61	0	v = PyLong_FromUnsignedLong(FT_ATOMIC_LOAD_ULONG_RELAXED((unsigned long)addr));
62	0	break;
63	6.22k	case Py_T_PYSSIZET:
64	6.22k	v = PyLong_FromSsize_t(FT_ATOMIC_LOAD_SSIZE_RELAXED((Py_ssize_t)addr));
65	6.22k	break;
66	0	case Py_T_FLOAT:
67	0	v = PyFloat_FromDouble((double)FT_ATOMIC_LOAD_FLOAT_RELAXED((float)addr));
68	0	break;
69	0	case Py_T_DOUBLE:
70	0	v = PyFloat_FromDouble(FT_ATOMIC_LOAD_DOUBLE_RELAXED((double)addr));
71	0	break;
72	2	case Py_T_STRING:
73	2	if ((char*)addr == NULL) {
74	0	v = Py_NewRef(Py_None);
75	0	}
76	2	else
77	2	v = PyUnicode_FromString((char*)addr);
78	2	break;
79	0	case Py_T_STRING_INPLACE:
80	0	v = PyUnicode_FromString((char*)addr);
81	0	break;
82	0	case Py_T_CHAR: {
83	0	char char_val = FT_ATOMIC_LOAD_CHAR_RELAXED(*addr);
84	0	v = PyUnicode_FromStringAndSize(&char_val, 1);
85	0	break;
86	0	}
87	95.8k	case _Py_T_OBJECT:
88	95.8k	v = FT_ATOMIC_LOAD_PTR((PyObject *) addr);
89	95.8k	if (v != NULL) {
90		#ifdef Py_GIL_DISABLED
91		if (!_Py_TryIncrefCompare((PyObject **) addr, v)) {
92		Py_BEGIN_CRITICAL_SECTION((PyObject *) obj_addr);
93		v = FT_ATOMIC_LOAD_PTR((PyObject *) addr);
94		Py_XINCREF(v);
95		Py_END_CRITICAL_SECTION();
96		}
97		#else
98	95.8k	Py_INCREF(v);
99	95.8k	#endif
100	95.8k	}
101	95.8k	if (v == NULL) {
102	0	v = Py_None;
103	0	}
104	95.8k	break;
105	334	case Py_T_OBJECT_EX:
106	334	v = member_get_object(addr, obj_addr, l);
107	334	#ifndef Py_GIL_DISABLED
108	334	Py_XINCREF(v);
109		#else
110		if (v != NULL) {
111		if (!_Py_TryIncrefCompare((PyObject **) addr, v)) {
112		Py_BEGIN_CRITICAL_SECTION((PyObject *) obj_addr);
113		v = member_get_object(addr, obj_addr, l);
114		Py_XINCREF(v);
115		Py_END_CRITICAL_SECTION();
116		}
117		}
118		#endif
119	334	break;
120	0	case Py_T_LONGLONG:
121	0	v = PyLong_FromLongLong(FT_ATOMIC_LOAD_LLONG_RELAXED((long long )addr));
122	0	break;
123	0	case Py_T_ULONGLONG:
124	0	v = PyLong_FromUnsignedLongLong(FT_ATOMIC_LOAD_ULLONG_RELAXED((unsigned long long )addr));
125	0	break;
126	0	case _Py_T_NONE:
127		// doesn't require free-threading code path
128	0	v = Py_NewRef(Py_None);
129	0	break;
130	0	default:
131	0	PyErr_SetString(PyExc_SystemError, "bad memberdescr type");
132	0	v = NULL;
133	102k	}
134	102k	return v;
135	102k	}
136
137		#define WARN(msg) \
138	0	do { \
139	0	if (PyErr_WarnEx(PyExc_RuntimeWarning, msg, 1) < 0) \
140	0	return -1; \
141	0	} while (0)
142
143		int
144		PyMember_SetOne(char addr, PyMemberDef l, PyObject *v)
145	7.11k	{
146	7.11k	PyObject *oldv;
147	7.11k	if (l->flags & Py_RELATIVE_OFFSET) {
148	0	PyErr_SetString(
149	0	PyExc_SystemError,
150	0	"PyMember_SetOne used with Py_RELATIVE_OFFSET");
151	0	return -1;
152	0	}
153
154		#ifdef Py_GIL_DISABLED
155		PyObject obj = (PyObject ) addr;
156		#endif
157	7.11k	addr += l->offset;
158
159	7.11k	if ((l->flags & Py_READONLY))
160	0	{
161	0	PyErr_SetString(PyExc_AttributeError, "readonly attribute");
162	0	return -1;
163	0	}
164	7.11k	if (v == NULL) {
165	0	if (l->type == Py_T_OBJECT_EX) {
166		/* Check if the attribute is set. */
167	0	if ((PyObject *)addr == NULL) {
168	0	PyErr_SetString(PyExc_AttributeError, l->name);
169	0	return -1;
170	0	}
171	0	}
172	0	else if (l->type != _Py_T_OBJECT) {
173	0	PyErr_SetString(PyExc_TypeError,
174	0	"can't delete numeric/char attribute");
175	0	return -1;
176	0	}
177	0	}
178	7.11k	switch (l->type) {
179	0	case Py_T_BOOL:{
180	0	if (!PyBool_Check(v)) {
181	0	PyErr_SetString(PyExc_TypeError,
182	0	"attribute value type must be bool");
183	0	return -1;
184	0	}
185	0	if (v == Py_True)
186	0	FT_ATOMIC_STORE_CHAR_RELAXED((char)addr, 1);
187	0	else
188	0	FT_ATOMIC_STORE_CHAR_RELAXED((char)addr, 0);
189	0	break;
190	0	}
191	0	case Py_T_BYTE:{
192	0	long long_val = PyLong_AsLong(v);
193	0	if ((long_val == -1) && PyErr_Occurred())
194	0	return -1;
195	0	FT_ATOMIC_STORE_CHAR_RELAXED((char)addr, (char)long_val);
196		/* XXX: For compatibility, only warn about truncations
197		for now. */
198	0	if ((long_val > CHAR_MAX) \|\| (long_val < CHAR_MIN))
199	0	WARN("Truncation of value to char");
200	0	break;
201	0	}
202	0	case Py_T_UBYTE:{
203	0	long long_val = PyLong_AsLong(v);
204	0	if ((long_val == -1) && PyErr_Occurred())
205	0	return -1;
206	0	FT_ATOMIC_STORE_UCHAR_RELAXED((unsigned char)addr, (unsigned char)long_val);
207	0	if ((long_val > UCHAR_MAX) \|\| (long_val < 0))
208	0	WARN("Truncation of value to unsigned char");
209	0	break;
210	0	}
211	0	case Py_T_SHORT:{
212	0	long long_val = PyLong_AsLong(v);
213	0	if ((long_val == -1) && PyErr_Occurred())
214	0	return -1;
215	0	FT_ATOMIC_STORE_SHORT_RELAXED((short)addr, (short)long_val);
216	0	if ((long_val > SHRT_MAX) \|\| (long_val < SHRT_MIN))
217	0	WARN("Truncation of value to short");
218	0	break;
219	0	}
220	0	case Py_T_USHORT:{
221	0	long long_val = PyLong_AsLong(v);
222	0	if ((long_val == -1) && PyErr_Occurred())
223	0	return -1;
224	0	FT_ATOMIC_STORE_USHORT_RELAXED((unsigned short)addr, (unsigned short)long_val);
225	0	if ((long_val > USHRT_MAX) \|\| (long_val < 0))
226	0	WARN("Truncation of value to unsigned short");
227	0	break;
228	0	}
229	0	case Py_T_INT:{
230	0	long long_val = PyLong_AsLong(v);
231	0	if ((long_val == -1) && PyErr_Occurred())
232	0	return -1;
233	0	FT_ATOMIC_STORE_INT_RELAXED((int )addr, (int)long_val);
234	0	if ((long_val > INT_MAX) \|\| (long_val < INT_MIN))
235	0	WARN("Truncation of value to int");
236	0	break;
237	0	}
238	0	case Py_T_UINT: {
239		/* XXX: For compatibility, accept negative int values
240		as well. */
241	0	v = _PyNumber_Index(v);
242	0	if (v == NULL) {
243	0	return -1;
244	0	}
245	0	if (_PyLong_IsNegative((PyLongObject *)v)) {
246	0	long long_val = PyLong_AsLong(v);
247	0	Py_DECREF(v);
248	0	if (long_val == -1 && PyErr_Occurred()) {
249	0	return -1;
250	0	}
251	0	FT_ATOMIC_STORE_UINT_RELAXED((unsigned int )addr, (unsigned int)(unsigned long)long_val);
252	0	WARN("Writing negative value into unsigned field");
253	0	}
254	0	else {
255	0	unsigned long ulong_val = PyLong_AsUnsignedLong(v);
256	0	Py_DECREF(v);
257	0	if (ulong_val == (unsigned long)-1 && PyErr_Occurred()) {
258	0	return -1;
259	0	}
260	0	FT_ATOMIC_STORE_UINT_RELAXED((unsigned int )addr, (unsigned int)ulong_val);
261	0	if (ulong_val > UINT_MAX) {
262	0	WARN("Truncation of value to unsigned int");
263	0	}
264	0	}
265	0	break;
266	0	}
267	0	case Py_T_LONG: {
268	0	const long long_val = PyLong_AsLong(v);
269	0	if ((long_val == -1) && PyErr_Occurred())
270	0	return -1;
271	0	FT_ATOMIC_STORE_LONG_RELAXED((long)addr, long_val);
272	0	break;
273	0	}
274	0	case Py_T_ULONG: {
275		/* XXX: For compatibility, accept negative int values
276		as well. */
277	0	v = _PyNumber_Index(v);
278	0	if (v == NULL) {
279	0	return -1;
280	0	}
281	0	if (_PyLong_IsNegative((PyLongObject *)v)) {
282	0	long long_val = PyLong_AsLong(v);
283	0	Py_DECREF(v);
284	0	if (long_val == -1 && PyErr_Occurred()) {
285	0	return -1;
286	0	}
287	0	FT_ATOMIC_STORE_ULONG_RELAXED((unsigned long )addr, (unsigned long)long_val);
288	0	WARN("Writing negative value into unsigned field");
289	0	}
290	0	else {
291	0	unsigned long ulong_val = PyLong_AsUnsignedLong(v);
292	0	Py_DECREF(v);
293	0	if (ulong_val == (unsigned long)-1 && PyErr_Occurred()) {
294	0	return -1;
295	0	}
296	0	FT_ATOMIC_STORE_ULONG_RELAXED((unsigned long )addr, ulong_val);
297	0	}
298	0	break;
299	0	}
300	0	case Py_T_PYSSIZET: {
301	0	const Py_ssize_t ssize_val = PyLong_AsSsize_t(v);
302	0	if ((ssize_val == (Py_ssize_t)-1) && PyErr_Occurred())
303	0	return -1;
304	0	FT_ATOMIC_STORE_SSIZE_RELAXED((Py_ssize_t)addr, ssize_val);
305	0	break;
306	0	}
307	0	case Py_T_FLOAT:{
308	0	double double_val = PyFloat_AsDouble(v);
309	0	if ((double_val == -1) && PyErr_Occurred())
310	0	return -1;
311	0	FT_ATOMIC_STORE_FLOAT_RELAXED((float)addr, (float)double_val);
312	0	break;
313	0	}
314	0	case Py_T_DOUBLE: {
315	0	const double double_val = PyFloat_AsDouble(v);
316	0	if ((double_val == -1) && PyErr_Occurred())
317	0	return -1;
318	0	FT_ATOMIC_STORE_DOUBLE_RELAXED((double ) addr, double_val);
319	0	break;
320	0	}
321	7.05k	case _Py_T_OBJECT:
322	7.11k	case Py_T_OBJECT_EX:
323	7.11k	Py_BEGIN_CRITICAL_SECTION(obj);
324	7.11k	oldv = (PyObject *)addr;
325	7.11k	FT_ATOMIC_STORE_PTR_RELEASE((PyObject *)addr, Py_XNewRef(v));
326	7.11k	Py_END_CRITICAL_SECTION();
327	7.11k	Py_XDECREF(oldv);
328	7.11k	break;
329	0	case Py_T_CHAR: {
330	0	const char *string;
331	0	Py_ssize_t len;
332
333	0	string = PyUnicode_AsUTF8AndSize(v, &len);
334	0	if (string == NULL \|\| len != 1) {
335	0	PyErr_BadArgument();
336	0	return -1;
337	0	}
338	0	FT_ATOMIC_STORE_CHAR_RELAXED((char)addr, string[0]);
339	0	break;
340	0	}
341	0	case Py_T_STRING:
342	0	case Py_T_STRING_INPLACE:
343	0	PyErr_SetString(PyExc_TypeError, "readonly attribute");
344	0	return -1;
345	0	case Py_T_LONGLONG:{
346	0	long long value = PyLong_AsLongLong(v);
347	0	if ((value == -1) && PyErr_Occurred())
348	0	return -1;
349	0	FT_ATOMIC_STORE_LLONG_RELAXED((long long)addr, value);
350	0	break;
351	0	}
352	0	case Py_T_ULONGLONG: {
353	0	v = _PyNumber_Index(v);
354	0	if (v == NULL) {
355	0	return -1;
356	0	}
357	0	if (_PyLong_IsNegative((PyLongObject *)v)) {
358	0	long long_val = PyLong_AsLong(v);
359	0	Py_DECREF(v);
360	0	if (long_val == -1 && PyErr_Occurred()) {
361	0	return -1;
362	0	}
363	0	FT_ATOMIC_STORE_ULLONG_RELAXED((unsigned long long )addr, (unsigned long long)(long long)long_val);
364	0	WARN("Writing negative value into unsigned field");
365	0	}
366	0	else {
367	0	unsigned long long ulonglong_val = PyLong_AsUnsignedLongLong(v);
368	0	Py_DECREF(v);
369	0	if (ulonglong_val == (unsigned long long)-1 && PyErr_Occurred()) {
370	0	return -1;
371	0	}
372	0	FT_ATOMIC_STORE_ULLONG_RELAXED((unsigned long long )addr, ulonglong_val);
373	0	}
374	0	break;
375	0	}
376	0	default:
377	0	PyErr_Format(PyExc_SystemError,
378	0	"bad memberdescr type for %s", l->name);
379	0	return -1;
380	7.11k	}
381	7.11k	return 0;
382	7.11k	}