mirror of https://github.com/python/cpython
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
#ifndef CSTRINGIO_INCLUDED
|
|
#define CSTRINGIO_INCLUDED
|
|
#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.
|
|
|
|
*/
|
|
|
|
/* 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=(struct PycStringIO_CAPI*)xxxPyCObject_Import("cStringIO", "cStringIO_CAPI")
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* CSTRINGIO_INCLUDED */
|