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86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* Copyright (C) 1993-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>.
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As a special exception, if you link the code in this file with
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files compiled with a GNU compiler to produce an executable,
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that does not cause the resulting executable to be covered by
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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This exception applies to code released by its copyright holders
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in files containing the exception. */
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#include <libio.h>
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#ifdef TODO
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Merge into libio.h ?
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#endif
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typedef void *(*_IO_alloc_type) (_IO_size_t);
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typedef void (*_IO_free_type) (void*);
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struct _IO_str_fields
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{
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_IO_alloc_type _allocate_buffer;
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_IO_free_type _free_buffer;
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};
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/* This is needed for the Irix6 N32 ABI, which has a 64 bit off_t type,
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but a 32 bit pointer type. In this case, we get 4 bytes of padding
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after the vtable pointer. Putting them in a structure together solves
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this problem. */
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struct _IO_streambuf
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{
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struct _IO_FILE _f;
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const struct _IO_jump_t *vtable;
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};
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typedef struct _IO_strfile_
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{
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struct _IO_streambuf _sbf;
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struct _IO_str_fields _s;
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} _IO_strfile;
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/* dynamic: set when the array object is allocated (or reallocated) as
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necessary to hold a character sequence that can change in length. */
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#define _IO_STR_DYNAMIC(FP) ((FP)->_s._allocate_buffer != (_IO_alloc_type)0)
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/* frozen: set when the program has requested that the array object not
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be altered, reallocated, or freed. */
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#define _IO_STR_FROZEN(FP) ((FP)->_f._IO_file_flags & _IO_USER_BUF)
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typedef struct
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{
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_IO_strfile f;
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/* This is used for the characters which do not fit in the buffer
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provided by the user. */
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char overflow_buf[64];
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} _IO_strnfile;
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extern const struct _IO_jump_t _IO_strn_jumps attribute_hidden;
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typedef struct
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{
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_IO_strfile f;
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/* This is used for the characters which do not fit in the buffer
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provided by the user. */
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wchar_t overflow_buf[64];
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} _IO_wstrnfile;
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extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden;
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