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mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions

View File

@ -1,4 +1,5 @@
/* Copyright (C) 1993, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1993, 1997, 1999, 2000, 2002, 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
@ -85,35 +86,20 @@ _IO_wfile_doallocate (fp)
_IO_FILE *fp;
{
_IO_size_t size;
int couldbetty;
wchar_t *p;
struct _G_stat64 st;
/* Allocate room for the external buffer. */
if (fp->_IO_buf_base == NULL)
INTUSE(_IO_file_doallocate) (fp);
if (fp->_fileno < 0 || _IO_SYSSTAT (fp, &st) < 0)
{
couldbetty = 0;
size = _IO_BUFSIZ;
#if 0
/* do not try to optimise fseek() */
fp->_flags |= __SNPT;
#endif
}
else
{
couldbetty = S_ISCHR (st.st_mode);
#if _IO_HAVE_ST_BLKSIZE
size = st.st_blksize <= 0 ? _IO_BUFSIZ : st.st_blksize;
#else
size = _IO_BUFSIZ;
#endif
}
/* If narrow buffer is user allocated (set by setvbuf etc.),
use that size as the size of the wide buffer, when it is
allocated by _IO_file_doallocate, multiply that by size
of the wide character. */
size = fp->_IO_buf_end - fp->_IO_buf_base;
if ((fp->_flags & _IO_USER_BUF))
size = (size + sizeof (wchar_t) - 1) / sizeof (wchar_t);
ALLOC_WBUF (p, size * sizeof (wchar_t), EOF);
INTUSE(_IO_wsetb) (fp, p, p + size, 1);
if (couldbetty && isatty (fp->_fileno))
fp->_flags |= _IO_LINE_BUF;
return 1;
}