73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/****************************************************************************
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* libs/libc/stdio/lib_fputc.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <stdio.h>
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#include "libc.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: fputc
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****************************************************************************/
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int fputc_unlocked(int c, FAR FILE *stream)
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{
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unsigned char buf = (unsigned char)c;
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int ret;
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ret = lib_fwrite_unlocked(&buf, 1, stream);
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if (ret > 0)
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{
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/* Flush the buffer if a newline is output */
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if (c == '\n' && (stream->fs_flags & __FS_FLAG_LBF) != 0)
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{
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ret = lib_fflush_unlocked(stream);
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if (ret < 0)
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{
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return EOF;
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}
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}
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return c;
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}
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else
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{
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return EOF;
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}
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}
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int fputc(int c, FAR FILE *stream)
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{
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int ret;
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flockfile(stream);
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ret = fputc_unlocked(c, stream);
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funlockfile(stream);
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return ret;
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}
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