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/* Copyright (c) 2015, Red Hat, Inc. and/or its affiliates
* Licensed under the MIT license; see py3c.h
*/
#ifndef _PY3C_FILESHIM_H_
#define _PY3C_FILESHIM_H_
#include <Python.h>
/*
For debugging purposes only.
Caveats:
* Only works on file-like objects backed by an actual file
* All C-level writes should be done before additional
Python-level writes are allowed (e.g. by running Python code).
* Though the function tries to flush, there is no guarantee that
writes will be reordered due to different layers of buffering.
*/
static char FLUSH[] = "flush";
static char EMPTY_STRING[] = "";
static FILE* py3c_PyFile_AsFileWithMode(PyObject *py_file, const char *mode) {
FILE *f;
PyObject *ret;
int fd;
ret = PyObject_CallMethod(py_file, FLUSH, EMPTY_STRING);
if (ret == NULL) {
return NULL;
}
Py_DECREF(ret);
fd = PyObject_AsFileDescriptor(py_file);
if (fd == -1) {
return NULL;
}
f = fdopen(fd, mode);
if (f == NULL) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
return f;
}
#endif /* _PY3C_FILESHIM_H_ */
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