/* | |
* Declarations shared between the different parts of the io module | |
*/ | |
/* ABCs */ | |
extern PyTypeObject PyIOBase_Type; | |
extern PyTypeObject PyRawIOBase_Type; | |
extern PyTypeObject PyBufferedIOBase_Type; | |
extern PyTypeObject PyTextIOBase_Type; | |
/* Concrete classes */ | |
extern PyTypeObject PyFileIO_Type; | |
extern PyTypeObject PyBytesIO_Type; | |
extern PyTypeObject PyStringIO_Type; | |
extern PyTypeObject PyBufferedReader_Type; | |
extern PyTypeObject PyBufferedWriter_Type; | |
extern PyTypeObject PyBufferedRWPair_Type; | |
extern PyTypeObject PyBufferedRandom_Type; | |
extern PyTypeObject PyTextIOWrapper_Type; | |
extern PyTypeObject PyIncrementalNewlineDecoder_Type; | |
extern int _PyIO_ConvertSsize_t(PyObject *, void *); | |
/* These functions are used as METH_NOARGS methods, are normally called | |
* with args=NULL, and return a new reference. | |
* BUT when args=Py_True is passed, they return a borrowed reference. | |
*/ | |
extern PyObject* _PyIOBase_check_readable(PyObject *self, PyObject *args); | |
extern PyObject* _PyIOBase_check_writable(PyObject *self, PyObject *args); | |
extern PyObject* _PyIOBase_check_seekable(PyObject *self, PyObject *args); | |
extern PyObject* _PyIOBase_check_closed(PyObject *self, PyObject *args); | |
/* Helper for finalization. | |
This function will revive an object ready to be deallocated and try to | |
close() it. It returns 0 if the object can be destroyed, or -1 if it | |
is alive again. */ | |
extern int _PyIOBase_finalize(PyObject *self); | |
/* Returns true if the given FileIO object is closed. | |
Doesn't check the argument type, so be careful! */ | |
extern int _PyFileIO_closed(PyObject *self); | |
/* Shortcut to the core of the IncrementalNewlineDecoder.decode method */ | |
extern PyObject *_PyIncrementalNewlineDecoder_decode( | |
PyObject *self, PyObject *input, int final); | |
/* Finds the first line ending between `start` and `end`. | |
If found, returns the index after the line ending and doesn't touch | |
`*consumed`. | |
If not found, returns -1 and sets `*consumed` to the number of characters | |
which can be safely put aside until another search. | |
NOTE: for performance reasons, `end` must point to a NUL character ('\0'). | |
Otherwise, the function will scan further and return garbage. */ | |
extern Py_ssize_t _PyIO_find_line_ending( | |
int translated, int universal, PyObject *readnl, | |
Py_UNICODE *start, Py_UNICODE *end, Py_ssize_t *consumed); | |
/* Return 1 if an EnvironmentError with errno == EINTR is set (and then | |
clears the error indicator), 0 otherwise. | |
Should only be called when PyErr_Occurred() is true. | |
*/ | |
extern int _PyIO_trap_eintr(void); | |
#define DEFAULT_BUFFER_SIZE (8 * 1024) /* bytes */ | |
typedef struct { | |
/* This is the equivalent of PyException_HEAD in 3.x */ | |
PyObject_HEAD | |
PyObject *dict; | |
PyObject *args; | |
PyObject *message; | |
PyObject *myerrno; | |
PyObject *strerror; | |
PyObject *filename; /* Not used, but part of the IOError object */ | |
Py_ssize_t written; | |
} PyBlockingIOErrorObject; | |
extern PyObject *PyExc_BlockingIOError; | |
/* | |
* Offset type for positioning. | |
*/ | |
/* Printing a variable of type off_t (with e.g., PyString_FromFormat) | |
correctly and without producing compiler warnings is surprisingly painful. | |
We identify an integer type whose size matches off_t and then: (1) cast the | |
off_t to that integer type and (2) use the appropriate conversion | |
specification. The cast is necessary: gcc complains about formatting a | |
long with "%lld" even when both long and long long have the same | |
precision. */ | |
#if defined(MS_WIN64) || defined(MS_WINDOWS) | |
/* Windows uses long long for offsets */ | |
typedef PY_LONG_LONG Py_off_t; | |
# define PyLong_AsOff_t PyLong_AsLongLong | |
# define PyLong_FromOff_t PyLong_FromLongLong | |
# define PY_OFF_T_MAX PY_LLONG_MAX | |
# define PY_OFF_T_MIN PY_LLONG_MIN | |
# define PY_OFF_T_COMPAT PY_LONG_LONG /* type compatible with off_t */ | |
# define PY_PRIdOFF "lld" /* format to use for that type */ | |
#else | |
/* Other platforms use off_t */ | |
typedef off_t Py_off_t; | |
#if (SIZEOF_OFF_T == SIZEOF_SIZE_T) | |
# define PyLong_AsOff_t PyLong_AsSsize_t | |
# define PyLong_FromOff_t PyLong_FromSsize_t | |
# define PY_OFF_T_MAX PY_SSIZE_T_MAX | |
# define PY_OFF_T_MIN PY_SSIZE_T_MIN | |
# define PY_OFF_T_COMPAT Py_ssize_t | |
# define PY_PRIdOFF "zd" | |
#elif (HAVE_LONG_LONG && SIZEOF_OFF_T == SIZEOF_LONG_LONG) | |
# define PyLong_AsOff_t PyLong_AsLongLong | |
# define PyLong_FromOff_t PyLong_FromLongLong | |
# define PY_OFF_T_MAX PY_LLONG_MAX | |
# define PY_OFF_T_MIN PY_LLONG_MIN | |
# define PY_OFF_T_COMPAT PY_LONG_LONG | |
# define PY_PRIdOFF "lld" | |
#elif (SIZEOF_OFF_T == SIZEOF_LONG) | |
# define PyLong_AsOff_t PyLong_AsLong | |
# define PyLong_FromOff_t PyLong_FromLong | |
# define PY_OFF_T_MAX LONG_MAX | |
# define PY_OFF_T_MIN LONG_MIN | |
# define PY_OFF_T_COMPAT long | |
# define PY_PRIdOFF "ld" | |
#else | |
# error off_t does not match either size_t, long, or long long! | |
#endif | |
#endif | |
extern Py_off_t PyNumber_AsOff_t(PyObject *item, PyObject *err); | |
/* Implementation details */ | |
extern PyObject *_PyIO_os_module; | |
extern PyObject *_PyIO_locale_module; | |
extern PyObject *_PyIO_unsupported_operation; | |
extern PyObject *_PyIO_str_close; | |
extern PyObject *_PyIO_str_closed; | |
extern PyObject *_PyIO_str_decode; | |
extern PyObject *_PyIO_str_encode; | |
extern PyObject *_PyIO_str_fileno; | |
extern PyObject *_PyIO_str_flush; | |
extern PyObject *_PyIO_str_getstate; | |
extern PyObject *_PyIO_str_isatty; | |
extern PyObject *_PyIO_str_newlines; | |
extern PyObject *_PyIO_str_nl; | |
extern PyObject *_PyIO_str_read; | |
extern PyObject *_PyIO_str_read1; | |
extern PyObject *_PyIO_str_readable; | |
extern PyObject *_PyIO_str_readinto; | |
extern PyObject *_PyIO_str_readline; | |
extern PyObject *_PyIO_str_reset; | |
extern PyObject *_PyIO_str_seek; | |
extern PyObject *_PyIO_str_seekable; | |
extern PyObject *_PyIO_str_setstate; | |
extern PyObject *_PyIO_str_tell; | |
extern PyObject *_PyIO_str_truncate; | |
extern PyObject *_PyIO_str_writable; | |
extern PyObject *_PyIO_str_write; | |
extern PyObject *_PyIO_empty_str; | |
extern PyObject *_PyIO_empty_bytes; | |
extern PyObject *_PyIO_zero; |