/*[clinic input]

preserve

[clinic start generated code]*/

#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

#  include "pycore_gc.h"          // PyGC_Head

#  include "pycore_runtime.h"     // _Py_ID()

#endif

#include "pycore_abstract.h"      // _Py_convert_optional_to_ssize_t()

#include "pycore_critical_section.h"// Py_BEGIN_CRITICAL_SECTION()

#include "pycore_modsupport.h"    // _PyArg_CheckPositional()

PyDoc_STRVAR(_io_BytesIO_readable__doc__,

"readable($self, /)\n"

"--\n"

"\n"

"Returns True if the IO object can be read.");

#define _IO_BYTESIO_READABLE_METHODDEF    \

    {"readable", (PyCFunction)_io_BytesIO_readable, METH_NOARGS, _io_BytesIO_readable__doc__},

static PyObject *

_io_BytesIO_readable_impl(bytesio *self);

static PyObject *

_io_BytesIO_readable(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_readable_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_writable__doc__,

"writable($self, /)\n"

"--\n"

"\n"

"Returns True if the IO object can be written.");

#define _IO_BYTESIO_WRITABLE_METHODDEF    \

    {"writable", (PyCFunction)_io_BytesIO_writable, METH_NOARGS, _io_BytesIO_writable__doc__},

static PyObject *

_io_BytesIO_writable_impl(bytesio *self);

static PyObject *

_io_BytesIO_writable(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_writable_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_seekable__doc__,

"seekable($self, /)\n"

"--\n"

"\n"

"Returns True if the IO object can be seeked.");

#define _IO_BYTESIO_SEEKABLE_METHODDEF    \

    {"seekable", (PyCFunction)_io_BytesIO_seekable, METH_NOARGS, _io_BytesIO_seekable__doc__},

static PyObject *

_io_BytesIO_seekable_impl(bytesio *self);

static PyObject *

_io_BytesIO_seekable(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_seekable_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_flush__doc__,

"flush($self, /)\n"

"--\n"

"\n"

"Does nothing.");

#define _IO_BYTESIO_FLUSH_METHODDEF    \

    {"flush", (PyCFunction)_io_BytesIO_flush, METH_NOARGS, _io_BytesIO_flush__doc__},

static PyObject *

_io_BytesIO_flush_impl(bytesio *self);

static PyObject *

_io_BytesIO_flush(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_flush_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_getbuffer__doc__,

"getbuffer($self, /)\n"

"--\n"

"\n"

"Get a read-write view over the contents of the BytesIO object.");

#define _IO_BYTESIO_GETBUFFER_METHODDEF    \

    {"getbuffer", _PyCFunction_CAST(_io_BytesIO_getbuffer), METH_METHOD|METH_FASTCALL|METH_KEYWORDS, _io_BytesIO_getbuffer__doc__},

static PyObject *

_io_BytesIO_getbuffer_impl(bytesio *self, PyTypeObject *cls);

static PyObject *

_io_BytesIO_getbuffer(PyObject *self, PyTypeObject *cls, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)

{

    PyObject *return_value = NULL;

    if (nargs || (kwnames && PyTuple_GET_SIZE(kwnames))) {

        PyErr_SetString(PyExc_TypeError, "getbuffer() takes no arguments");

        goto exit;

    }

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_getbuffer_impl((bytesio *)self, cls);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_getvalue__doc__,

"getvalue($self, /)\n"

"--\n"

"\n"

"Retrieve the entire contents of the BytesIO object.");

#define _IO_BYTESIO_GETVALUE_METHODDEF    \

    {"getvalue", (PyCFunction)_io_BytesIO_getvalue, METH_NOARGS, _io_BytesIO_getvalue__doc__},

static PyObject *

_io_BytesIO_getvalue_impl(bytesio *self);

static PyObject *

_io_BytesIO_getvalue(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_getvalue_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_isatty__doc__,

"isatty($self, /)\n"

"--\n"

"\n"

"Always returns False.\n"

"\n"

"BytesIO objects are not connected to a TTY-like device.");

#define _IO_BYTESIO_ISATTY_METHODDEF    \

    {"isatty", (PyCFunction)_io_BytesIO_isatty, METH_NOARGS, _io_BytesIO_isatty__doc__},

static PyObject *

_io_BytesIO_isatty_impl(bytesio *self);

static PyObject *

_io_BytesIO_isatty(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_isatty_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_tell__doc__,

"tell($self, /)\n"

"--\n"

"\n"

"Current file position, an integer.");

#define _IO_BYTESIO_TELL_METHODDEF    \

    {"tell", (PyCFunction)_io_BytesIO_tell, METH_NOARGS, _io_BytesIO_tell__doc__},

static PyObject *

_io_BytesIO_tell_impl(bytesio *self);

static PyObject *

_io_BytesIO_tell(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_tell_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_read__doc__,

"read($self, size=-1, /)\n"

"--\n"

"\n"

"Read at most size bytes, returned as a bytes object.\n"

"\n"

"If the size argument is negative, read until EOF is reached.\n"

"Return an empty bytes object at EOF.");

#define _IO_BYTESIO_READ_METHODDEF    \

    {"read", _PyCFunction_CAST(_io_BytesIO_read), METH_FASTCALL, _io_BytesIO_read__doc__},

static PyObject *

_io_BytesIO_read_impl(bytesio *self, Py_ssize_t size);

static PyObject *

_io_BytesIO_read(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    Py_ssize_t size = -1;

    if (!_PyArg_CheckPositional("read", nargs, 0, 1)) {

        goto exit;

    }

    if (nargs < 1) {

        goto skip_optional;

    }

    if (!_Py_convert_optional_to_ssize_t(args[0], &size)) {

        goto exit;

    }

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_read_impl((bytesio *)self, size);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_read1__doc__,

"read1($self, size=-1, /)\n"

"--\n"

"\n"

"Read at most size bytes, returned as a bytes object.\n"

"\n"

"If the size argument is negative or omitted, read until EOF is\n"

"reached.  Return an empty bytes object at EOF.");

#define _IO_BYTESIO_READ1_METHODDEF    \

    {"read1", _PyCFunction_CAST(_io_BytesIO_read1), METH_FASTCALL, _io_BytesIO_read1__doc__},

static PyObject *

_io_BytesIO_read1_impl(bytesio *self, Py_ssize_t size);

static PyObject *

_io_BytesIO_read1(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    Py_ssize_t size = -1;

    if (!_PyArg_CheckPositional("read1", nargs, 0, 1)) {

        goto exit;

    }

    if (nargs < 1) {

        goto skip_optional;

    }

    if (!_Py_convert_optional_to_ssize_t(args[0], &size)) {

        goto exit;

    }

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_read1_impl((bytesio *)self, size);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_readline__doc__,

"readline($self, size=-1, /)\n"

"--\n"

"\n"

"Next line from the file, as a bytes object.\n"

"\n"

"Retain newline.  A non-negative size argument limits the maximum\n"

"number of bytes to return (an incomplete line may be returned then).\n"

"Return an empty bytes object at EOF.");

#define _IO_BYTESIO_READLINE_METHODDEF    \

    {"readline", _PyCFunction_CAST(_io_BytesIO_readline), METH_FASTCALL, _io_BytesIO_readline__doc__},

static PyObject *

_io_BytesIO_readline_impl(bytesio *self, Py_ssize_t size);

static PyObject *

_io_BytesIO_readline(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    Py_ssize_t size = -1;

    if (!_PyArg_CheckPositional("readline", nargs, 0, 1)) {

        goto exit;

    }

    if (nargs < 1) {

        goto skip_optional;

    }

    if (!_Py_convert_optional_to_ssize_t(args[0], &size)) {

        goto exit;

    }

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_readline_impl((bytesio *)self, size);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_readlines__doc__,

"readlines($self, size=None, /)\n"

"--\n"

"\n"

"List of bytes objects, each a line from the file.\n"

"\n"

"Call readline() repeatedly and return a list of the lines so read.\n"

"The optional size argument, if given, is an approximate bound on the\n"

"total number of bytes in the lines returned.");

#define _IO_BYTESIO_READLINES_METHODDEF    \

    {"readlines", _PyCFunction_CAST(_io_BytesIO_readlines), METH_FASTCALL, _io_BytesIO_readlines__doc__},

static PyObject *

_io_BytesIO_readlines_impl(bytesio *self, PyObject *arg);

static PyObject *

_io_BytesIO_readlines(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    PyObject *arg = Py_None;

    if (!_PyArg_CheckPositional("readlines", nargs, 0, 1)) {

        goto exit;

    }

    if (nargs < 1) {

        goto skip_optional;

    }

    arg = args[0];

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_readlines_impl((bytesio *)self, arg);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_readinto__doc__,

"readinto($self, buffer, /)\n"

"--\n"

"\n"

"Read bytes into buffer.\n"

"\n"

"Returns number of bytes read (0 for EOF), or None if the object\n"

"is set not to block and has no data to read.");

#define _IO_BYTESIO_READINTO_METHODDEF    \

    {"readinto", (PyCFunction)_io_BytesIO_readinto, METH_O, _io_BytesIO_readinto__doc__},

static PyObject *

_io_BytesIO_readinto_impl(bytesio *self, Py_buffer *buffer);

static PyObject *

_io_BytesIO_readinto(PyObject *self, PyObject *arg)

{

    PyObject *return_value = NULL;

    Py_buffer buffer = {NULL, NULL};

    if (PyObject_GetBuffer(arg, &buffer, PyBUF_WRITABLE) < 0) {

        _PyArg_BadArgument("readinto", "argument", "read-write bytes-like object", arg);

        goto exit;

    }

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_readinto_impl((bytesio *)self, &buffer);

    Py_END_CRITICAL_SECTION();

exit:

    /* Cleanup for buffer */

    if (buffer.obj) {

       PyBuffer_Release(&buffer);

    }

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_truncate__doc__,

"truncate($self, size=None, /)\n"

"--\n"

"\n"

"Truncate the file to at most size bytes.\n"

"\n"

"Size defaults to the current file position, as returned by tell().\n"

"The current file position is unchanged.  Returns the new size.");

#define _IO_BYTESIO_TRUNCATE_METHODDEF    \

    {"truncate", _PyCFunction_CAST(_io_BytesIO_truncate), METH_FASTCALL, _io_BytesIO_truncate__doc__},

static PyObject *

_io_BytesIO_truncate_impl(bytesio *self, PyObject *size);

static PyObject *

_io_BytesIO_truncate(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    PyObject *size = Py_None;

    if (!_PyArg_CheckPositional("truncate", nargs, 0, 1)) {

        goto exit;

    }

    if (nargs < 1) {

        goto skip_optional;

    }

    size = args[0];

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_truncate_impl((bytesio *)self, size);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_seek__doc__,

"seek($self, pos, whence=0, /)\n"

"--\n"

"\n"

"Change stream position.\n"

"\n"

"Seek to byte offset pos relative to position indicated by whence:\n"

"     0  Start of stream (the default).  pos should be >= 0;\n"

"     1  Current position - pos may be negative;\n"

"     2  End of stream - pos usually negative.\n"

"Returns the new absolute position.");

#define _IO_BYTESIO_SEEK_METHODDEF    \

    {"seek", _PyCFunction_CAST(_io_BytesIO_seek), METH_FASTCALL, _io_BytesIO_seek__doc__},

static PyObject *

_io_BytesIO_seek_impl(bytesio *self, Py_ssize_t pos, int whence);

static PyObject *

_io_BytesIO_seek(PyObject *self, PyObject *const *args, Py_ssize_t nargs)

{

    PyObject *return_value = NULL;

    Py_ssize_t pos;

    int whence = 0;

    if (!_PyArg_CheckPositional("seek", nargs, 1, 2)) {

        goto exit;

    }

    {

        Py_ssize_t ival = -1;

        PyObject *iobj = _PyNumber_Index(args[0]);

        if (iobj != NULL) {

            ival = PyLong_AsSsize_t(iobj);

            Py_DECREF(iobj);

        }

        if (ival == -1 && PyErr_Occurred()) {

            goto exit;

        }

        pos = ival;

    }

    if (nargs < 2) {

        goto skip_optional;

    }

    whence = PyLong_AsInt(args[1]);

    if (whence == -1 && PyErr_Occurred()) {

        goto exit;

    }

skip_optional:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_seek_impl((bytesio *)self, pos, whence);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_write__doc__,

"write($self, b, /)\n"

"--\n"

"\n"

"Write bytes to file.\n"

"\n"

"Return the number of bytes written.");

#define _IO_BYTESIO_WRITE_METHODDEF    \

    {"write", (PyCFunction)_io_BytesIO_write, METH_O, _io_BytesIO_write__doc__},

static PyObject *

_io_BytesIO_write_impl(bytesio *self, PyObject *b);

static PyObject *

_io_BytesIO_write(PyObject *self, PyObject *b)

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_write_impl((bytesio *)self, b);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_writelines__doc__,

"writelines($self, lines, /)\n"

"--\n"

"\n"

"Write lines to the file.\n"

"\n"

"Note that newlines are not added.  lines can be any iterable object\n"

"producing bytes-like objects.  This is equivalent to calling write()\n"

"for each element.");

#define _IO_BYTESIO_WRITELINES_METHODDEF    \

    {"writelines", (PyCFunction)_io_BytesIO_writelines, METH_O, _io_BytesIO_writelines__doc__},

static PyObject *

_io_BytesIO_writelines_impl(bytesio *self, PyObject *lines);

static PyObject *

_io_BytesIO_writelines(PyObject *self, PyObject *lines)

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_writelines_impl((bytesio *)self, lines);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO_close__doc__,

"close($self, /)\n"

"--\n"

"\n"

"Disable all I/O operations.");

#define _IO_BYTESIO_CLOSE_METHODDEF    \

    {"close", (PyCFunction)_io_BytesIO_close, METH_NOARGS, _io_BytesIO_close__doc__},

static PyObject *

_io_BytesIO_close_impl(bytesio *self);

static PyObject *

_io_BytesIO_close(PyObject *self, PyObject *Py_UNUSED(ignored))

{

    PyObject *return_value = NULL;

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO_close_impl((bytesio *)self);

    Py_END_CRITICAL_SECTION();

    return return_value;

}

PyDoc_STRVAR(_io_BytesIO___init____doc__,

"BytesIO(initial_bytes=b\'\')\n"

"--\n"

"\n"

"Buffered I/O implementation using an in-memory bytes buffer.");

static int

_io_BytesIO___init___impl(bytesio *self, PyObject *initvalue);

static int

_io_BytesIO___init__(PyObject *self, PyObject *args, PyObject *kwargs)

{

    int return_value = -1;

    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1

    static struct {

        PyGC_Head _this_is_not_used;

        PyObject_VAR_HEAD

        Py_hash_t ob_hash;

        PyObject *ob_item[NUM_KEYWORDS];

    } _kwtuple = {

        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)

        .ob_hash = -1,

        .ob_item = { &_Py_ID(initial_bytes), },

    };

    #undef NUM_KEYWORDS

    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE

    #  define KWTUPLE NULL

    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"initial_bytes", NULL};

    static _PyArg_Parser _parser = {

        .keywords = _keywords,

        .fname = "BytesIO",

        .kwtuple = KWTUPLE,

    };

    #undef KWTUPLE

    PyObject *argsbuf[1];

    PyObject * const *fastargs;

    Py_ssize_t nargs = PyTuple_GET_SIZE(args);

    Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 0;

    PyObject *initvalue = NULL;

    fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser,

            /*minpos*/ 0, /*maxpos*/ 1, /*minkw*/ 0, /*varpos*/ 0, argsbuf);

    if (!fastargs) {

        goto exit;

    }

    if (!noptargs) {

        goto skip_optional_pos;

    }

    initvalue = fastargs[0];

skip_optional_pos:

    Py_BEGIN_CRITICAL_SECTION(self);

    return_value = _io_BytesIO___init___impl((bytesio *)self, initvalue);

    Py_END_CRITICAL_SECTION();

exit:

    return return_value;

}

/*[clinic end generated code: output=eac3911e207aaf45 input=a9049054013a1b77]*/