mirror of https://github.com/python/cpython
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
#ifndef Py_STRUCTMEMBER_H
|
|
#define Py_STRUCTMEMBER_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Interface to map C struct members to Python object attributes */
|
|
|
|
#ifdef HAVE_STDDEF_H
|
|
#include <stddef.h> /* For offsetof */
|
|
#endif
|
|
|
|
/* The offsetof() macro calculates the offset of a structure member
|
|
in its structure. Unfortunately this cannot be written down
|
|
portably, hence it is provided by a Standard C header file.
|
|
For pre-Standard C compilers, here is a version that usually works
|
|
(but watch out!): */
|
|
|
|
#ifndef offsetof
|
|
#define offsetof(type, member) ( (int) & ((type*)0) -> member )
|
|
#endif
|
|
|
|
/* An array of memberlist structures defines the name, type and offset
|
|
of selected members of a C structure. These can be read by
|
|
PyMember_Get() and set by PyMember_Set() (except if their READONLY flag
|
|
is set). The array must be terminated with an entry whose name
|
|
pointer is NULL. */
|
|
|
|
struct memberlist {
|
|
/* Obsolete version, for binary backwards compatibility */
|
|
char *name;
|
|
int type;
|
|
int offset;
|
|
int flags;
|
|
};
|
|
|
|
typedef struct PyMemberDef {
|
|
/* Current version, use this */
|
|
char *name;
|
|
int type;
|
|
int offset;
|
|
int flags;
|
|
char *doc;
|
|
} PyMemberDef;
|
|
|
|
/* Types */
|
|
#define T_SHORT 0
|
|
#define T_INT 1
|
|
#define T_LONG 2
|
|
#define T_FLOAT 3
|
|
#define T_DOUBLE 4
|
|
#define T_STRING 5
|
|
#define T_OBJECT 6
|
|
/* XXX the ordering here is weird for binary compatibility */
|
|
#define T_CHAR 7 /* 1-character string */
|
|
#define T_BYTE 8 /* 8-bit signed int */
|
|
/* unsigned variants: */
|
|
#define T_UBYTE 9
|
|
#define T_USHORT 10
|
|
#define T_UINT 11
|
|
#define T_ULONG 12
|
|
|
|
/* Added by Jack: strings contained in the structure */
|
|
#define T_STRING_INPLACE 13
|
|
#ifdef macintosh
|
|
#define T_PSTRING 14 /* macintosh pascal-style counted string */
|
|
#define T_PSTRING_INPLACE 15
|
|
#endif /* macintosh */
|
|
|
|
#define T_OBJECT_EX 16 /* Like T_OBJECT, but raises AttributeError
|
|
when the value is NULL, instead of
|
|
converting to None. */
|
|
|
|
/* Flags */
|
|
#define READONLY 1
|
|
#define RO READONLY /* Shorthand */
|
|
#define READ_RESTRICTED 2
|
|
#define WRITE_RESTRICTED 4
|
|
#define RESTRICTED (READ_RESTRICTED | WRITE_RESTRICTED)
|
|
|
|
|
|
/* Obsolete API, for binary backwards compatibility */
|
|
DL_IMPORT(PyObject *) PyMember_Get(char *, struct memberlist *, char *);
|
|
DL_IMPORT(int) PyMember_Set(char *, struct memberlist *, char *, PyObject *);
|
|
|
|
/* Current API, use this */
|
|
DL_IMPORT(PyObject *) PyMember_GetOne(char *, struct PyMemberDef *);
|
|
DL_IMPORT(int) PyMember_SetOne(char *, struct PyMemberDef *, PyObject *);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_STRUCTMEMBER_H */
|