106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/****************************************************************************
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* libs/libc/stdio/lib_fputwc.c
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*
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* Copyright © 2005-2014 Rich Felker, et al.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <wchar.h>
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#include <limits.h>
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#include <ctype.h>
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#include <nuttx/fs/fs.h>
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#include "libc.h"
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#ifdef CONFIG_FILE_STREAM
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: fputwc_unlocked
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*
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* Description:
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* Write wide character to stream without lock the stream
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*
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* Input Parameters:
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* c - the wide character to write
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* f - the FILE object that identifies an output stream
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*
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* Returned Value:
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* Return the wide character that written in to the stream on success,
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* return WEOF on fail write to the stream
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*
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****************************************************************************/
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wint_t fputwc_unlocked(wchar_t c, FAR FILE *f)
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{
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char mbc[MB_LEN_MAX];
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int l;
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if (isascii(c))
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{
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c = putc(c, f);
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}
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else
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{
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l = wctomb(mbc, c);
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if (l < 0 || lib_fwrite_unlocked(mbc, l, f) < l)
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{
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c = WEOF;
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}
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}
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return c;
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}
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/****************************************************************************
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* Name: fputwc
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*
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* Description:
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* Write wide character to stream
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*
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* Input Parameters:
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* c - the wide character to write
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* f - the FILE object that identifies an output stream
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*
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* Returned Value:
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* Return the wide character that written in to the stream on success,
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* return WEOF on fail write to the stream
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*
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****************************************************************************/
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wint_t fputwc(wchar_t c, FAR FILE *f)
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{
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flockfile(f);
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c = fputwc_unlocked(c, f);
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funlockfile(f);
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return c;
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}
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#endif /* CONFIG_FILE_STREAM */
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