156 lines
5.0 KiB
C
156 lines
5.0 KiB
C
/*
|
|
* 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);
|
|
|
|
|
|
#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;
|
|
PyAPI_DATA(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_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;
|