mirror of
https://github.com/python/cpython.git
synced 2024-12-13 11:54:54 +08:00
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* ByteArray object interface */
|
|
|
|
#ifndef Py_BYTEARRAYOBJECT_H
|
|
#define Py_BYTEARRAYOBJECT_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdarg.h>
|
|
|
|
/* Type PyByteArrayObject represents a mutable array of bytes.
|
|
* The Python API is that of a sequence;
|
|
* the bytes are mapped to ints in [0, 256).
|
|
* Bytes are not characters; they may be used to encode characters.
|
|
* The only way to go between bytes and str/unicode is via encoding
|
|
* and decoding.
|
|
* For the convenience of C programmers, the bytes type is considered
|
|
* to contain a char pointer, not an unsigned char pointer.
|
|
*/
|
|
|
|
/* Object layout */
|
|
#ifndef Py_LIMITED_API
|
|
typedef struct {
|
|
PyObject_VAR_HEAD
|
|
Py_ssize_t ob_alloc; /* How many bytes allocated in ob_bytes */
|
|
char *ob_bytes; /* Physical backing buffer */
|
|
char *ob_start; /* Logical start inside ob_bytes */
|
|
/* XXX(nnorwitz): should ob_exports be Py_ssize_t? */
|
|
int ob_exports; /* How many buffer exports */
|
|
} PyByteArrayObject;
|
|
#endif
|
|
|
|
/* Type object */
|
|
PyAPI_DATA(PyTypeObject) PyByteArray_Type;
|
|
PyAPI_DATA(PyTypeObject) PyByteArrayIter_Type;
|
|
|
|
/* Type check macros */
|
|
#define PyByteArray_Check(self) PyObject_TypeCheck(self, &PyByteArray_Type)
|
|
#define PyByteArray_CheckExact(self) (Py_TYPE(self) == &PyByteArray_Type)
|
|
|
|
/* Direct API functions */
|
|
PyAPI_FUNC(PyObject *) PyByteArray_FromObject(PyObject *);
|
|
PyAPI_FUNC(PyObject *) PyByteArray_Concat(PyObject *, PyObject *);
|
|
PyAPI_FUNC(PyObject *) PyByteArray_FromStringAndSize(const char *, Py_ssize_t);
|
|
PyAPI_FUNC(Py_ssize_t) PyByteArray_Size(PyObject *);
|
|
PyAPI_FUNC(char *) PyByteArray_AsString(PyObject *);
|
|
PyAPI_FUNC(int) PyByteArray_Resize(PyObject *, Py_ssize_t);
|
|
|
|
/* Macros, trading safety for speed */
|
|
#ifndef Py_LIMITED_API
|
|
#define PyByteArray_AS_STRING(self) \
|
|
(assert(PyByteArray_Check(self)), \
|
|
Py_SIZE(self) ? ((PyByteArrayObject *)(self))->ob_start : _PyByteArray_empty_string)
|
|
#define PyByteArray_GET_SIZE(self) (assert(PyByteArray_Check(self)), Py_SIZE(self))
|
|
|
|
PyAPI_DATA(char) _PyByteArray_empty_string[];
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_BYTEARRAYOBJECT_H */
|