mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/* Wide printf buffers writing data to a FILE *.
|
|
Copyright (C) 2022-2024 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* This implementation is not optimized (unlikely the multibyte
|
|
implementation) and always writes to the temporary buffer first. */
|
|
|
|
#include <printf_buffer_to_file.h>
|
|
|
|
#include <array_length.h>
|
|
#include <libio/libioP.h>
|
|
|
|
void
|
|
__wprintf_buffer_flush_to_file (struct __wprintf_buffer_to_file *buf)
|
|
{
|
|
size_t count = buf->base.write_ptr - buf->stage;
|
|
if ((size_t) _IO_sputn (buf->fp, buf->stage, count) != count)
|
|
{
|
|
__wprintf_buffer_mark_failed (&buf->base);
|
|
return;
|
|
}
|
|
buf->base.written += count;
|
|
buf->base.write_ptr = buf->stage;
|
|
}
|
|
|
|
void
|
|
__wprintf_buffer_to_file_init (struct __wprintf_buffer_to_file *buf, FILE *fp)
|
|
{
|
|
__wprintf_buffer_init (&buf->base, buf->stage, array_length (buf->stage),
|
|
__wprintf_buffer_mode_to_file);
|
|
buf->fp = fp;
|
|
}
|
|
|
|
int
|
|
__wprintf_buffer_to_file_done (struct __wprintf_buffer_to_file *buf)
|
|
{
|
|
if (__wprintf_buffer_has_failed (&buf->base))
|
|
return -1;
|
|
__wprintf_buffer_flush_to_file (buf);
|
|
return __wprintf_buffer_done (&buf->base);
|
|
}
|