| 4710c53d |
1 | /*\r |
| 2 | * Declarations shared between the different parts of the io module\r |
| 3 | */\r |
| 4 | \r |
| 5 | /* ABCs */\r |
| 6 | extern PyTypeObject PyIOBase_Type;\r |
| 7 | extern PyTypeObject PyRawIOBase_Type;\r |
| 8 | extern PyTypeObject PyBufferedIOBase_Type;\r |
| 9 | extern PyTypeObject PyTextIOBase_Type;\r |
| 10 | \r |
| 11 | /* Concrete classes */\r |
| 12 | extern PyTypeObject PyFileIO_Type;\r |
| 13 | extern PyTypeObject PyBytesIO_Type;\r |
| 14 | extern PyTypeObject PyStringIO_Type;\r |
| 15 | extern PyTypeObject PyBufferedReader_Type;\r |
| 16 | extern PyTypeObject PyBufferedWriter_Type;\r |
| 17 | extern PyTypeObject PyBufferedRWPair_Type;\r |
| 18 | extern PyTypeObject PyBufferedRandom_Type;\r |
| 19 | extern PyTypeObject PyTextIOWrapper_Type;\r |
| 20 | extern PyTypeObject PyIncrementalNewlineDecoder_Type;\r |
| 21 | \r |
| 22 | \r |
| 23 | extern int _PyIO_ConvertSsize_t(PyObject *, void *);\r |
| 24 | \r |
| 25 | /* These functions are used as METH_NOARGS methods, are normally called\r |
| 26 | * with args=NULL, and return a new reference.\r |
| 27 | * BUT when args=Py_True is passed, they return a borrowed reference.\r |
| 28 | */\r |
| 29 | extern PyObject* _PyIOBase_check_readable(PyObject *self, PyObject *args);\r |
| 30 | extern PyObject* _PyIOBase_check_writable(PyObject *self, PyObject *args);\r |
| 31 | extern PyObject* _PyIOBase_check_seekable(PyObject *self, PyObject *args);\r |
| 32 | extern PyObject* _PyIOBase_check_closed(PyObject *self, PyObject *args);\r |
| 33 | \r |
| 34 | /* Helper for finalization.\r |
| 35 | This function will revive an object ready to be deallocated and try to\r |
| 36 | close() it. It returns 0 if the object can be destroyed, or -1 if it\r |
| 37 | is alive again. */\r |
| 38 | extern int _PyIOBase_finalize(PyObject *self);\r |
| 39 | \r |
| 40 | /* Returns true if the given FileIO object is closed.\r |
| 41 | Doesn't check the argument type, so be careful! */\r |
| 42 | extern int _PyFileIO_closed(PyObject *self);\r |
| 43 | \r |
| 44 | /* Shortcut to the core of the IncrementalNewlineDecoder.decode method */\r |
| 45 | extern PyObject *_PyIncrementalNewlineDecoder_decode(\r |
| 46 | PyObject *self, PyObject *input, int final);\r |
| 47 | \r |
| 48 | /* Finds the first line ending between `start` and `end`.\r |
| 49 | If found, returns the index after the line ending and doesn't touch\r |
| 50 | `*consumed`.\r |
| 51 | If not found, returns -1 and sets `*consumed` to the number of characters\r |
| 52 | which can be safely put aside until another search.\r |
| 53 | \r |
| 54 | NOTE: for performance reasons, `end` must point to a NUL character ('\0'). \r |
| 55 | Otherwise, the function will scan further and return garbage. */\r |
| 56 | extern Py_ssize_t _PyIO_find_line_ending(\r |
| 57 | int translated, int universal, PyObject *readnl,\r |
| 58 | Py_UNICODE *start, Py_UNICODE *end, Py_ssize_t *consumed);\r |
| 59 | \r |
| 60 | \r |
| 61 | #define DEFAULT_BUFFER_SIZE (8 * 1024) /* bytes */\r |
| 62 | \r |
| 63 | typedef struct {\r |
| 64 | /* This is the equivalent of PyException_HEAD in 3.x */\r |
| 65 | PyObject_HEAD\r |
| 66 | PyObject *dict;\r |
| 67 | PyObject *args;\r |
| 68 | PyObject *message;\r |
| 69 | \r |
| 70 | PyObject *myerrno;\r |
| 71 | PyObject *strerror;\r |
| 72 | PyObject *filename; /* Not used, but part of the IOError object */\r |
| 73 | Py_ssize_t written;\r |
| 74 | } PyBlockingIOErrorObject;\r |
| 75 | PyAPI_DATA(PyObject *) PyExc_BlockingIOError;\r |
| 76 | \r |
| 77 | /*\r |
| 78 | * Offset type for positioning.\r |
| 79 | */\r |
| 80 | \r |
| 81 | /* Printing a variable of type off_t (with e.g., PyString_FromFormat)\r |
| 82 | correctly and without producing compiler warnings is surprisingly painful.\r |
| 83 | We identify an integer type whose size matches off_t and then: (1) cast the\r |
| 84 | off_t to that integer type and (2) use the appropriate conversion\r |
| 85 | specification. The cast is necessary: gcc complains about formatting a\r |
| 86 | long with "%lld" even when both long and long long have the same\r |
| 87 | precision. */\r |
| 88 | \r |
| 89 | #if defined(MS_WIN64) || defined(MS_WINDOWS)\r |
| 90 | \r |
| 91 | /* Windows uses long long for offsets */\r |
| 92 | typedef PY_LONG_LONG Py_off_t;\r |
| 93 | # define PyLong_AsOff_t PyLong_AsLongLong\r |
| 94 | # define PyLong_FromOff_t PyLong_FromLongLong\r |
| 95 | # define PY_OFF_T_MAX PY_LLONG_MAX\r |
| 96 | # define PY_OFF_T_MIN PY_LLONG_MIN\r |
| 97 | # define PY_OFF_T_COMPAT PY_LONG_LONG /* type compatible with off_t */\r |
| 98 | # define PY_PRIdOFF "lld" /* format to use for that type */\r |
| 99 | \r |
| 100 | #else\r |
| 101 | \r |
| 102 | /* Other platforms use off_t */\r |
| 103 | typedef off_t Py_off_t;\r |
| 104 | #if (SIZEOF_OFF_T == SIZEOF_SIZE_T)\r |
| 105 | # define PyLong_AsOff_t PyLong_AsSsize_t\r |
| 106 | # define PyLong_FromOff_t PyLong_FromSsize_t\r |
| 107 | # define PY_OFF_T_MAX PY_SSIZE_T_MAX\r |
| 108 | # define PY_OFF_T_MIN PY_SSIZE_T_MIN\r |
| 109 | # define PY_OFF_T_COMPAT Py_ssize_t\r |
| 110 | # define PY_PRIdOFF "zd"\r |
| 111 | #elif (HAVE_LONG_LONG && SIZEOF_OFF_T == SIZEOF_LONG_LONG)\r |
| 112 | # define PyLong_AsOff_t PyLong_AsLongLong\r |
| 113 | # define PyLong_FromOff_t PyLong_FromLongLong\r |
| 114 | # define PY_OFF_T_MAX PY_LLONG_MAX\r |
| 115 | # define PY_OFF_T_MIN PY_LLONG_MIN\r |
| 116 | # define PY_OFF_T_COMPAT PY_LONG_LONG\r |
| 117 | # define PY_PRIdOFF "lld"\r |
| 118 | #elif (SIZEOF_OFF_T == SIZEOF_LONG)\r |
| 119 | # define PyLong_AsOff_t PyLong_AsLong\r |
| 120 | # define PyLong_FromOff_t PyLong_FromLong\r |
| 121 | # define PY_OFF_T_MAX LONG_MAX\r |
| 122 | # define PY_OFF_T_MIN LONG_MIN\r |
| 123 | # define PY_OFF_T_COMPAT long\r |
| 124 | # define PY_PRIdOFF "ld"\r |
| 125 | #else\r |
| 126 | # error off_t does not match either size_t, long, or long long!\r |
| 127 | #endif\r |
| 128 | \r |
| 129 | #endif\r |
| 130 | \r |
| 131 | extern Py_off_t PyNumber_AsOff_t(PyObject *item, PyObject *err);\r |
| 132 | \r |
| 133 | /* Implementation details */\r |
| 134 | \r |
| 135 | extern PyObject *_PyIO_os_module;\r |
| 136 | extern PyObject *_PyIO_locale_module;\r |
| 137 | extern PyObject *_PyIO_unsupported_operation;\r |
| 138 | \r |
| 139 | extern PyObject *_PyIO_str_close;\r |
| 140 | extern PyObject *_PyIO_str_closed;\r |
| 141 | extern PyObject *_PyIO_str_decode;\r |
| 142 | extern PyObject *_PyIO_str_encode;\r |
| 143 | extern PyObject *_PyIO_str_fileno;\r |
| 144 | extern PyObject *_PyIO_str_flush;\r |
| 145 | extern PyObject *_PyIO_str_getstate;\r |
| 146 | extern PyObject *_PyIO_str_isatty;\r |
| 147 | extern PyObject *_PyIO_str_newlines;\r |
| 148 | extern PyObject *_PyIO_str_nl;\r |
| 149 | extern PyObject *_PyIO_str_read;\r |
| 150 | extern PyObject *_PyIO_str_read1;\r |
| 151 | extern PyObject *_PyIO_str_readable;\r |
| 152 | extern PyObject *_PyIO_str_readinto;\r |
| 153 | extern PyObject *_PyIO_str_readline;\r |
| 154 | extern PyObject *_PyIO_str_reset;\r |
| 155 | extern PyObject *_PyIO_str_seek;\r |
| 156 | extern PyObject *_PyIO_str_seekable;\r |
| 157 | extern PyObject *_PyIO_str_setstate;\r |
| 158 | extern PyObject *_PyIO_str_tell;\r |
| 159 | extern PyObject *_PyIO_str_truncate;\r |
| 160 | extern PyObject *_PyIO_str_writable;\r |
| 161 | extern PyObject *_PyIO_str_write;\r |
| 162 | \r |
| 163 | extern PyObject *_PyIO_empty_str;\r |
| 164 | extern PyObject *_PyIO_empty_bytes;\r |
| 165 | extern PyObject *_PyIO_zero;\r |
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