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cpython/Include/cStringIO.h
Martin v. Löwis 9f2e346911 Merged revisions 56467-56482 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

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  r56477 | martin.v.loewis | 2007-07-21 09:04:38 +0200 (Sa, 21 Jul 2007) | 11 lines

  Merged revisions 56466-56476 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r56476 | martin.v.loewis | 2007-07-21 08:55:02 +0200 (Sa, 21 Jul 2007) | 4 lines

    PEP 3123: Provide forward compatibility with Python 3.0, while keeping
    backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
    PyVarObject_HEAD_INIT.
  ........
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  r56478 | martin.v.loewis | 2007-07-21 09:47:23 +0200 (Sa, 21 Jul 2007) | 2 lines

  PEP 3123: Use proper C inheritance for PyObject.
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  r56479 | martin.v.loewis | 2007-07-21 10:06:55 +0200 (Sa, 21 Jul 2007) | 3 lines

  Add longintrepr.h to Python.h, so that the compiler can
  see that PyFalse is really some kind of PyObject*.
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  r56480 | martin.v.loewis | 2007-07-21 10:47:18 +0200 (Sa, 21 Jul 2007) | 2 lines

  Qualify SHIFT, MASK, BASE.
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  r56482 | martin.v.loewis | 2007-07-21 19:10:57 +0200 (Sa, 21 Jul 2007) | 2 lines

  Correctly refer to _ob_next.
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2007-07-21 17:22:18 +00:00

71 lines
2.0 KiB
C

#ifndef Py_CSTRINGIO_H
#define Py_CSTRINGIO_H
#ifdef __cplusplus
extern "C" {
#endif
/*
This header provides access to cStringIO objects from C.
Functions are provided for calling cStringIO objects and
macros are provided for testing whether you have cStringIO
objects.
Before calling any of the functions or macros, you must initialize
the routines with:
PycString_IMPORT
This would typically be done in your init function.
*/
#define PycString_IMPORT \
PycStringIO = (struct PycStringIO_CAPI*)PyCObject_Import("cStringIO", \
"cStringIO_CAPI")
/* Basic functions to manipulate cStringIO objects from C */
static struct PycStringIO_CAPI {
/* Read a string from an input object. If the last argument
is -1, the remainder will be read.
*/
int(*cread)(PyObject *, char **, Py_ssize_t);
/* Read a line from an input object. Returns the length of the read
line as an int and a pointer inside the object buffer as char** (so
the caller doesn't have to provide its own buffer as destination).
*/
int(*creadline)(PyObject *, char **);
/* Write a string to an output object*/
int(*cwrite)(PyObject *, const char *, Py_ssize_t);
/* Get the output object as a Python string (returns new reference). */
PyObject *(*cgetvalue)(PyObject *);
/* Create a new output object */
PyObject *(*NewOutput)(int);
/* Create an input object from a Python string
(copies the Python string reference).
*/
PyObject *(*NewInput)(PyObject *);
/* The Python types for cStringIO input and output objects.
Note that you can do input on an output object.
*/
PyTypeObject *InputType, *OutputType;
} *PycStringIO;
/* These can be used to test if you have one */
#define PycStringIO_InputCheck(O) \
(Py_Type(O)==PycStringIO->InputType)
#define PycStringIO_OutputCheck(O) \
(Py_Type(O)==PycStringIO->OutputType)
#ifdef __cplusplus
}
#endif
#endif /* !Py_CSTRINGIO_H */