glibc/libio/wmemstream.c
Ulrich Drepper 1e88bd0f1b [BZ #2337]
2006-12-13  Ulrich Drepper  <drepper@redhat.com>
	[BZ #2337]
	* libio/Makefile (tests): Add tst-setvbuf1.
	* libio/tst-setvbuf1.c: New file.

2006-12-08  Jakub Jelinek  <jakub@redhat.com>

	[BZ #2337]
	* libio/genops.c (__uflow): Fix a typo.
	* libio/wfiledoalloc.c (_IO_wfile_doallocate): Don't stat
	nor set _IO_LINE_BUF bit here.  Size the wide buffer based on
	the narrow buffer size.

2006-11-24  Jakub Jelinek  <jakub@redhat.com>

	[BZ #2337]
	* libio/libio.h (_IO_FLAGS2_USER_WBUF): Define.
	* libio/wgenops.c (_IO_wsetb, _IO_wdefault_finish): Test and set
	_IO_FLAGS2_USER_WBUF bit in _flags2 instead of _IO_USER_BUF bit
	in _flags.
	* libio/wstrops.c (_IO_wstr_overflow, enlarge_userbuf,
	_IO_wstr_finish): Likewise.
	* libio/wmemstream.c (open_wmemstream): Likewise.
	* libio/fileops.c (_IO_new_file_close_it): Call _IO_set[bgp]
	even for wide streams.
2006-12-13 23:17:54 +00:00

151 lines
4.3 KiB
C

/* Copyright (C) 1995-97,99,2000,2002-2004,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "libioP.h"
#include "strfile.h"
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
struct _IO_FILE_wmemstream
{
_IO_strfile _sf;
wchar_t **bufloc;
_IO_size_t *sizeloc;
};
static int _IO_wmem_sync (_IO_FILE* fp) __THROW;
static void _IO_wmem_finish (_IO_FILE* fp, int) __THROW;
static const struct _IO_jump_t _IO_wmem_jumps =
{
JUMP_INIT_DUMMY,
JUMP_INIT (finish, _IO_wmem_finish),
JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow),
JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow),
JUMP_INIT (uflow, (_IO_underflow_t) INTUSE(_IO_wdefault_uflow)),
JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
JUMP_INIT (xsputn, INTUSE(_IO_wdefault_xsputn)),
JUMP_INIT (xsgetn, INTUSE(_IO_wdefault_xsgetn)),
JUMP_INIT (seekoff, _IO_wstr_seekoff),
JUMP_INIT (seekpos, _IO_default_seekpos),
JUMP_INIT (setbuf, _IO_default_setbuf),
JUMP_INIT (sync, _IO_wmem_sync),
JUMP_INIT (doallocate, INTUSE(_IO_wdefault_doallocate)),
JUMP_INIT (read, _IO_default_read),
JUMP_INIT (write, _IO_default_write),
JUMP_INIT (seek, _IO_default_seek),
JUMP_INIT (close, _IO_default_close),
JUMP_INIT (stat, _IO_default_stat),
JUMP_INIT (showmanyc, _IO_default_showmanyc),
JUMP_INIT (imbue, _IO_default_imbue)
};
/* Open a stream that writes into a malloc'd buffer that is expanded as
necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
and the number of characters written on fflush or fclose. */
_IO_FILE *
open_wmemstream (bufloc, sizeloc)
wchar_t **bufloc;
_IO_size_t *sizeloc;
{
struct locked_FILE
{
struct _IO_FILE_wmemstream fp;
#ifdef _IO_MTSAFE_IO
_IO_lock_t lock;
#endif
struct _IO_wide_data wd;
} *new_f;
wchar_t *buf;
new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
if (new_f == NULL)
return NULL;
#ifdef _IO_MTSAFE_IO
new_f->fp._sf._sbf._f._lock = &new_f->lock;
#endif
buf = calloc (1, _IO_BUFSIZ);
if (buf == NULL)
return NULL;
_IO_no_init (&new_f->fp._sf._sbf._f, 0, 0, &new_f->wd, &_IO_wmem_jumps);
_IO_fwide (&new_f->fp._sf._sbf._f, 1);
_IO_wstr_init_static (&new_f->fp._sf._sbf._f, buf,
_IO_BUFSIZ / sizeof (wchar_t), buf);
new_f->fp._sf._sbf._f._flags2 &= ~_IO_FLAGS2_USER_WBUF;
new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
new_f->fp._sf._s._free_buffer = (_IO_free_type) free;
new_f->fp.bufloc = bufloc;
new_f->fp.sizeloc = sizeloc;
return (_IO_FILE *) &new_f->fp._sf._sbf;
}
static int
_IO_wmem_sync (fp)
_IO_FILE* fp;
{
struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp;
if (fp->_wide_data->_IO_write_ptr == fp->_wide_data->_IO_write_end)
{
_IO_wstr_overflow (fp, '\0');
--fp->_wide_data->_IO_write_ptr;
}
else
*fp->_wide_data->_IO_write_ptr = '\0';
*mp->bufloc = fp->_wide_data->_IO_write_base;
*mp->sizeloc = (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
return 0;
}
static void
_IO_wmem_finish (fp, dummy)
_IO_FILE* fp;
int dummy;
{
struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp;
*mp->bufloc = (wchar_t *) realloc (fp->_wide_data->_IO_write_base,
(fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base + 1)
* sizeof (wchar_t));
if (*mp->bufloc != NULL)
{
size_t len = (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
(*mp->bufloc)[len] = '\0';
*mp->sizeloc = len;
fp->_wide_data->_IO_buf_base = NULL;
}
_IO_wstr_finish (fp, 0);
}