diff options
Diffstat (limited to 'Modules/_iomodule.h')
-rw-r--r-- | Modules/_iomodule.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/Modules/_iomodule.h b/Modules/_iomodule.h new file mode 100644 index 0000000..a2f2413 --- /dev/null +++ b/Modules/_iomodule.h @@ -0,0 +1,150 @@ +/* + * 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; + +/* 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_checkReadable(PyObject *self, PyObject *args); +extern PyObject* _PyIOBase_checkWritable(PyObject *self, PyObject *args); +extern PyObject* _PyIOBase_checkSeekable(PyObject *self, PyObject *args); +extern PyObject* _PyIOBase_checkClosed(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); + + +#define DEFAULT_BUFFER_SIZE (8 * 1024) /* bytes */ + +typedef struct { + PyException_HEAD + PyObject *myerrno; + PyObject *strerror; + PyObject *filename; /* Not used, but part of the IOError object */ + Py_ssize_t written; +} PyBlockingIOErrorObject; +PyObject *PyExc_BlockingIOError; + +/* + * Offset type for positioning. + */ + +#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 + +#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 +#elif (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 +#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 +#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 */ + +/* IO module structure */ + +extern PyModuleDef _PyIO_Module; + +typedef struct { + int initialized; + PyObject *os_module; + PyObject *locale_module; + + PyObject *unsupported_operation; +} _PyIO_State; + +#define IO_MOD_STATE(mod) ((_PyIO_State *)PyModule_GetState(mod)) +#define IO_STATE IO_MOD_STATE(PyState_FindModule(&_PyIO_Module)) + +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_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; |