cpython/Include/cStringIO.h

132 lines
3.9 KiB
C

#ifndef CSTRINGIO_INCLUDED
#define CSTRINGIO_INCLUDED
/*
cStringIO.h,v 1.4 1997/12/07 14:27:00 jim Exp
cStringIO C API
Copyright
Copyright 1996 Digital Creations, L.C., 910 Princess Anne
Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
rights reserved. Copyright in this software is owned by DCLC,
unless otherwise indicated. Permission to use, copy and
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above copyright notice appear in all copies and that both that
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may be the subject of other Intellectual Property rights
reserved by Digital Creations, L.C. and are not licensed
hereunder.
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All other trademarks are owned by their respective companies.
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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.
*/
/* Basic functions to manipulate cStringIO objects from C */
static struct PycStringIO_CAPI {
/* Read a string. If the last argument is -1, the remainder will be read. */
int(*cread)(PyObject *, char **, int);
/* Read a line */
int(*creadline)(PyObject *, char **);
/* Write a string */
int(*cwrite)(PyObject *, char *, int);
/* Get the cStringIO object as a Python string */
PyObject *(*cgetvalue)(PyObject *);
/* Create a new output object */
PyObject *(*NewOutput)(int);
/* Create an input object from a Python string */
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 = NULL;
/* These can be used to test if you have one */
#define PycStringIO_InputCheck(O) \
((O)->ob_type==PycStringIO->InputType)
#define PycStringIO_OutputCheck(O) \
((O)->ob_type==PycStringIO->OutputType)
static void *
xxxPyCObject_Import(char *module_name, char *name)
{
PyObject *m, *c;
void *r=NULL;
if((m=PyImport_ImportModule(module_name)))
{
if((c=PyObject_GetAttrString(m,name)))
{
r=PyCObject_AsVoidPtr(c);
Py_DECREF(c);
}
Py_DECREF(m);
}
return r;
}
#define PycString_IMPORT \
PycStringIO=xxxPyCObject_Import("cStringIO", "cStringIO_CAPI")
#endif /* CSTRINGIO_INCLUDED */