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#include <Python.h>
#include <stdio.h>
#if PY_VERSION_HEX < 0x03000000
#include "cStringIO.h"
#define npy_PyFile_Dup(file, mode) PyFile_AsFile(file)
#define npy_PyFile_DupClose(file, handle) (0)
#define npy_PyFile_Check PyFile_Check
#else
/*
* No-op implementation -- always fall back to the generic one.
*/
static struct PycStringIO_CAPI {
int(*cread)(PyObject *, char **, Py_ssize_t);
int(*creadline)(PyObject *, char **);
int(*cwrite)(PyObject *, const char *, Py_ssize_t);
PyObject *(*cgetvalue)(PyObject *);
PyObject *(*NewOutput)(int);
PyObject *(*NewInput)(PyObject *);
PyTypeObject *InputType, *OutputType;
} *PycStringIO;
static void PycString_IMPORT() {}
#define PycStringIO_InputCheck(O) 0
#define PycStringIO_OutputCheck(O) 0
/*
* PyFile_* compatibility
*/
/*
* Get a FILE* handle to the file represented by the Python object
*/
static FILE*
npy_PyFile_Dup(PyObject *file, char *mode)
{
int fd, fd2;
PyObject *ret, *os;
/* Flush first to ensure things end up in the file in the correct order */
ret = PyObject_CallMethod(file, "flush", "");
if (ret == NULL) {
return NULL;
}
Py_DECREF(ret);
fd = PyObject_AsFileDescriptor(file);
if (fd == -1) {
return NULL;
}
os = PyImport_ImportModule("os");
if (os == NULL) {
return NULL;
}
ret = PyObject_CallMethod(os, "dup", "i", fd);
Py_DECREF(os);
if (ret == NULL) {
return NULL;
}
fd2 = PyNumber_AsSsize_t(ret, NULL);
Py_DECREF(ret);
#ifdef _WIN32
return _fdopen(fd2, mode);
#else
return fdopen(fd2, mode);
#endif
}
/*
* Close the dup-ed file handle, and seek the Python one to the current position
*/
static int
npy_PyFile_DupClose(PyObject *file, FILE* handle)
{
PyObject *ret;
long position;
position = ftell(handle);
fclose(handle);
ret = PyObject_CallMethod(file, "seek", "li", position, 0);
if (ret == NULL) {
return -1;
}
Py_DECREF(ret);
return 0;
}
static int
npy_PyFile_Check(PyObject *file)
{
int fd;
fd = PyObject_AsFileDescriptor(file);
if (fd == -1) {
PyErr_Clear();
return 0;
}
return 1;
}
#endif
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