+++ /dev/null
-\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, ©);\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, ©, 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
projects / mirror_edk2.git / blobdiff