EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.10 / Python / structmember.c

\r
/* Map C struct members to Python object attributes */\r
\r
#include "Python.h"\r
\r
#include "structmember.h"\r
\r
static PyObject *\r
listmembers(struct memberlist *mlist)\r
{\r
    int i, n;\r
    PyObject *v;\r
    for (n = 0; mlist[n].name != NULL; n++)\r
        ;\r
    v = PyList_New(n);\r
    if (v != NULL) {\r
        for (i = 0; i < n; i++)\r
            PyList_SetItem(v, i,\r
                           PyString_FromString(mlist[i].name));\r
        if (PyErr_Occurred()) {\r
            Py_DECREF(v);\r
            v = NULL;\r
        }\r
        else {\r
            PyList_Sort(v);\r
        }\r
    }\r
    return v;\r
}\r
\r
PyObject *\r
PyMember_Get(const char *addr, struct memberlist *mlist, const char *name)\r
{\r
    struct memberlist *l;\r
\r
    if (strcmp(name, "__members__") == 0)\r
        return listmembers(mlist);\r
    for (l = mlist; l->name != NULL; l++) {\r
        if (strcmp(l->name, name) == 0) {\r
            PyMemberDef copy;\r
            copy.name = l->name;\r
            copy.type = l->type;\r
            copy.offset = l->offset;\r
            copy.flags = l->flags;\r
            copy.doc = NULL;\r
            return PyMember_GetOne(addr, &copy);\r
        }\r
    }\r
    PyErr_SetString(PyExc_AttributeError, name);\r
    return NULL;\r
}\r
\r
PyObject *\r
PyMember_GetOne(const char *addr, PyMemberDef *l)\r
{\r
    PyObject *v;\r
    if ((l->flags & READ_RESTRICTED) &&\r
        PyEval_GetRestricted()) {\r
        PyErr_SetString(PyExc_RuntimeError, "restricted attribute");\r
        return NULL;\r
    }\r
    addr += l->offset;\r
    switch (l->type) {\r
    case T_BOOL:\r
        v = PyBool_FromLong(*(char*)addr);\r
        break;\r
    case T_BYTE:\r
        v = PyInt_FromLong(*(char*)addr);\r
        break;\r
    case T_UBYTE:\r
        v = PyLong_FromUnsignedLong(*(unsigned char*)addr);\r
        break;\r
    case T_SHORT:\r
        v = PyInt_FromLong(*(short*)addr);\r
        break;\r
    case T_USHORT:\r
        v = PyLong_FromUnsignedLong(*(unsigned short*)addr);\r
        break;\r
    case T_INT:\r
        v = PyInt_FromLong(*(int*)addr);\r
        break;\r
    case T_UINT:\r
        v = PyLong_FromUnsignedLong(*(unsigned int*)addr);\r
        break;\r
    case T_LONG:\r
        v = PyInt_FromLong(*(long*)addr);\r
        break;\r
    case T_ULONG:\r
        v = PyLong_FromUnsignedLong(*(unsigned long*)addr);\r
        break;\r
    case T_PYSSIZET:\r
        v = PyInt_FromSsize_t(*(Py_ssize_t*)addr);\r
        break;\r
    case T_FLOAT:\r
        v = PyFloat_FromDouble((double)*(float*)addr);\r
        break;\r
    case T_DOUBLE:\r
        v = PyFloat_FromDouble(*(double*)addr);\r
        break;\r
    case T_STRING:\r
        if (*(char**)addr == NULL) {\r
            Py_INCREF(Py_None);\r
            v = Py_None;\r
        }\r
        else\r
            v = PyString_FromString(*(char**)addr);\r
        break;\r
    case T_STRING_INPLACE:\r
        v = PyString_FromString((char*)addr);\r
        break;\r
    case T_CHAR:\r
        v = PyString_FromStringAndSize((char*)addr, 1);\r
        break;\r
    case T_OBJECT:\r
        v = *(PyObject **)addr;\r
        if (v == NULL)\r
            v = Py_None;\r
        Py_INCREF(v);\r
        break;\r
    case T_OBJECT_EX:\r
        v = *(PyObject **)addr;\r
        if (v == NULL)\r
            PyErr_SetString(PyExc_AttributeError, l->name);\r
        Py_XINCREF(v);\r
        break;\r
#ifdef HAVE_LONG_LONG\r
    case T_LONGLONG:\r
        v = PyLong_FromLongLong(*(PY_LONG_LONG *)addr);\r
        break;\r
    case T_ULONGLONG:\r
        v = PyLong_FromUnsignedLongLong(*(unsigned PY_LONG_LONG *)addr);\r
        break;\r
#endif /* HAVE_LONG_LONG */\r
    default:\r
        PyErr_SetString(PyExc_SystemError, "bad memberdescr type");\r
        v = NULL;\r
    }\r
    return v;\r
}\r
\r
int\r
PyMember_Set(char *addr, struct memberlist *mlist, const char *name, PyObject *v)\r
{\r
    struct memberlist *l;\r
\r
    for (l = mlist; l->name != NULL; l++) {\r
        if (strcmp(l->name, name) == 0) {\r
            PyMemberDef copy;\r
            copy.name = l->name;\r
            copy.type = l->type;\r
            copy.offset = l->offset;\r
            copy.flags = l->flags;\r
            copy.doc = NULL;\r
            return PyMember_SetOne(addr, &copy, v);\r
        }\r
    }\r
\r
    PyErr_SetString(PyExc_AttributeError, name);\r
    return -1;\r
}\r
\r
#define WARN(msg)                                       \\r
    do {                                                \\r
    if (PyErr_Warn(PyExc_RuntimeWarning, msg) < 0)      \\r
        return -1;                                      \\r
    } while (0)\r
\r
int\r
PyMember_SetOne(char *addr, PyMemberDef *l, PyObject *v)\r
{\r
    PyObject *oldv;\r
\r
    addr += l->offset;\r
\r
    if ((l->flags & READONLY))\r
    {\r
        PyErr_SetString(PyExc_TypeError, "readonly attribute");\r
        return -1;\r
    }\r
    if ((l->flags & PY_WRITE_RESTRICTED) && PyEval_GetRestricted()) {\r
        PyErr_SetString(PyExc_RuntimeError, "restricted attribute");\r
        return -1;\r
    }\r
    if (v == NULL) {\r
        if (l->type == T_OBJECT_EX) {\r
            /* Check if the attribute is set. */\r
            if (*(PyObject **)addr == NULL) {\r
                PyErr_SetString(PyExc_AttributeError, l->name);\r
                return -1;\r
            }\r
        }\r
        else if (l->type != T_OBJECT) {\r
            PyErr_SetString(PyExc_TypeError,\r
                            "can't delete numeric/char attribute");\r
            return -1;\r
        }\r
    }\r
    switch (l->type) {\r
    case T_BOOL:{\r
        if (!PyBool_Check(v)) {\r
            PyErr_SetString(PyExc_TypeError,\r
                            "attribute value type must be bool");\r
            return -1;\r
        }\r
        if (v == Py_True)\r
            *(char*)addr = (char) 1;\r
        else\r
            *(char*)addr = (char) 0;\r
        break;\r
        }\r
    case T_BYTE:{\r
        long long_val = PyInt_AsLong(v);\r
        if ((long_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(char*)addr = (char)long_val;\r
        /* XXX: For compatibility, only warn about truncations\r
           for now. */\r
        if ((long_val > CHAR_MAX) || (long_val < CHAR_MIN))\r
            WARN("Truncation of value to char");\r
        break;\r
        }\r
    case T_UBYTE:{\r
        long long_val = PyInt_AsLong(v);\r
        if ((long_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(unsigned char*)addr = (unsigned char)long_val;\r
        if ((long_val > UCHAR_MAX) || (long_val < 0))\r
            WARN("Truncation of value to unsigned char");\r
        break;\r
        }\r
    case T_SHORT:{\r
        long long_val = PyInt_AsLong(v);\r
        if ((long_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(short*)addr = (short)long_val;\r
        if ((long_val > SHRT_MAX) || (long_val < SHRT_MIN))\r
            WARN("Truncation of value to short");\r
        break;\r
        }\r
    case T_USHORT:{\r
        long long_val = PyInt_AsLong(v);\r
        if ((long_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(unsigned short*)addr = (unsigned short)long_val;\r
        if ((long_val > USHRT_MAX) || (long_val < 0))\r
            WARN("Truncation of value to unsigned short");\r
        break;\r
        }\r
    case T_INT:{\r
        long long_val = PyInt_AsLong(v);\r
        if ((long_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(int *)addr = (int)long_val;\r
        if ((long_val > INT_MAX) || (long_val < INT_MIN))\r
            WARN("Truncation of value to int");\r
        break;\r
        }\r
    case T_UINT:{\r
        unsigned long ulong_val = PyLong_AsUnsignedLong(v);\r
        if ((ulong_val == (unsigned long)-1) && PyErr_Occurred()) {\r
            /* XXX: For compatibility, accept negative int values\r
               as well. */\r
            PyErr_Clear();\r
            ulong_val = PyLong_AsLong(v);\r
            if ((ulong_val == (unsigned long)-1) &&\r
                PyErr_Occurred())\r
                return -1;\r
            *(unsigned int *)addr = (unsigned int)ulong_val;\r
            WARN("Writing negative value into unsigned field");\r
        } else\r
            *(unsigned int *)addr = (unsigned int)ulong_val;\r
        if (ulong_val > UINT_MAX)\r
            WARN("Truncation of value to unsigned int");\r
        break;\r
        }\r
    case T_LONG:{\r
        *(long*)addr = PyLong_AsLong(v);\r
        if ((*(long*)addr == -1) && PyErr_Occurred())\r
            return -1;\r
        break;\r
        }\r
    case T_ULONG:{\r
        *(unsigned long*)addr = PyLong_AsUnsignedLong(v);\r
        if ((*(unsigned long*)addr == (unsigned long)-1)\r
            && PyErr_Occurred()) {\r
            /* XXX: For compatibility, accept negative int values\r
               as well. */\r
            PyErr_Clear();\r
            *(unsigned long*)addr = PyLong_AsLong(v);\r
            if ((*(unsigned long*)addr == (unsigned long)-1)\r
                && PyErr_Occurred())\r
                return -1;\r
            WARN("Writing negative value into unsigned field");\r
        }\r
        break;\r
        }\r
    case T_PYSSIZET:{\r
        *(Py_ssize_t*)addr = PyInt_AsSsize_t(v);\r
        if ((*(Py_ssize_t*)addr == (Py_ssize_t)-1)\r
            && PyErr_Occurred())\r
                        return -1;\r
        break;\r
        }\r
    case T_FLOAT:{\r
        double double_val = PyFloat_AsDouble(v);\r
        if ((double_val == -1) && PyErr_Occurred())\r
            return -1;\r
        *(float*)addr = (float)double_val;\r
        break;\r
        }\r
    case T_DOUBLE:\r
        *(double*)addr = PyFloat_AsDouble(v);\r
        if ((*(double*)addr == -1) && PyErr_Occurred())\r
            return -1;\r
        break;\r
    case T_OBJECT:\r
    case T_OBJECT_EX:\r
        Py_XINCREF(v);\r
        oldv = *(PyObject **)addr;\r
        *(PyObject **)addr = v;\r
        Py_XDECREF(oldv);\r
        break;\r
    case T_CHAR:\r
        if (PyString_Check(v) && PyString_Size(v) == 1) {\r
            *(char*)addr = PyString_AsString(v)[0];\r
        }\r
        else {\r
            PyErr_BadArgument();\r
            return -1;\r
        }\r
        break;\r
    case T_STRING:\r
    case T_STRING_INPLACE:\r
        PyErr_SetString(PyExc_TypeError, "readonly attribute");\r
        return -1;\r
#ifdef HAVE_LONG_LONG\r
    case T_LONGLONG:{\r
        PY_LONG_LONG value;\r
        *(PY_LONG_LONG*)addr = value = PyLong_AsLongLong(v);\r
        if ((value == -1) && PyErr_Occurred())\r
            return -1;\r
        break;\r
        }\r
    case T_ULONGLONG:{\r
        unsigned PY_LONG_LONG value;\r
        /* ??? PyLong_AsLongLong accepts an int, but PyLong_AsUnsignedLongLong\r
            doesn't ??? */\r
        if (PyLong_Check(v))\r
            *(unsigned PY_LONG_LONG*)addr = value = PyLong_AsUnsignedLongLong(v);\r
        else\r
            *(unsigned PY_LONG_LONG*)addr = value = PyInt_AsLong(v);\r
        if ((value == (unsigned PY_LONG_LONG)-1) && PyErr_Occurred())\r
            return -1;\r
        break;\r
        }\r
#endif /* HAVE_LONG_LONG */\r
    default:\r
        PyErr_Format(PyExc_SystemError,\r
                     "bad memberdescr type for %s", l->name);\r
        return -1;\r
    }\r
    return 0;\r
}\r