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94 lines
2.5 KiB
94 lines
2.5 KiB
5 years ago
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#ifndef Py_STRUCTMEMBER_H
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#define Py_STRUCTMEMBER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Interface to map C struct members to Python object attributes */
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#include <stddef.h> /* For offsetof */
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/* The offsetof() macro calculates the offset of a structure member
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in its structure. Unfortunately this cannot be written down
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portably, hence it is provided by a Standard C header file.
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For pre-Standard C compilers, here is a version that usually works
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(but watch out!): */
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#ifndef offsetof
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#define offsetof(type, member) ( (int) & ((type*)0) -> member )
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#endif
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/* An array of memberlist structures defines the name, type and offset
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of selected members of a C structure. These can be read by
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PyMember_Get() and set by PyMember_Set() (except if their READONLY flag
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is set). The array must be terminated with an entry whose name
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pointer is NULL. */
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struct memberlist {
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/* Obsolete version, for binary backwards compatibility */
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char *name;
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int type;
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int offset;
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int flags;
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};
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typedef struct PyMemberDef {
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/* Current version, use this */
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char *name;
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int type;
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Py_ssize_t offset;
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int flags;
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char *doc;
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} PyMemberDef;
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/* Types */
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#define T_SHORT 0
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#define T_INT 1
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#define T_LONG 2
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#define T_FLOAT 3
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#define T_DOUBLE 4
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#define T_STRING 5
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#define T_OBJECT 6
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/* XXX the ordering here is weird for binary compatibility */
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#define T_CHAR 7 /* 1-character string */
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#define T_BYTE 8 /* 8-bit signed int */
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/* unsigned variants: */
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#define T_UBYTE 9
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#define T_USHORT 10
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#define T_UINT 11
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#define T_ULONG 12
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/* Added by Jack: strings contained in the structure */
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#define T_STRING_INPLACE 13
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#define T_OBJECT_EX 16 /* Like T_OBJECT, but raises AttributeError
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when the value is NULL, instead of
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converting to None. */
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#ifdef HAVE_LONG_LONG
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#define T_LONGLONG 17
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#define T_ULONGLONG 18
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#endif /* HAVE_LONG_LONG */
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/* Flags */
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#define READONLY 1
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#define RO READONLY /* Shorthand */
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#define READ_RESTRICTED 2
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#define WRITE_RESTRICTED 4
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#define RESTRICTED (READ_RESTRICTED | WRITE_RESTRICTED)
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/* Obsolete API, for binary backwards compatibility */
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PyAPI_FUNC(PyObject *) PyMember_Get(const char *, struct memberlist *, const char *);
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PyAPI_FUNC(int) PyMember_Set(char *, struct memberlist *, const char *, PyObject *);
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/* Current API, use this */
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PyAPI_FUNC(PyObject *) PyMember_GetOne(const char *, struct PyMemberDef *);
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PyAPI_FUNC(int) PyMember_SetOne(char *, struct PyMemberDef *, PyObject *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_STRUCTMEMBER_H */
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