100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/****************************************************************************
|
|
* libc/stdio/lib_stdinstream.c
|
|
*
|
|
* Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "lib_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: stdinstream_getc
|
|
****************************************************************************/
|
|
|
|
static int stdinstream_getc(FAR struct lib_instream_s *this)
|
|
{
|
|
FAR struct lib_stdinstream_s *sthis = (FAR struct lib_stdinstream_s *)this;
|
|
int ret;
|
|
|
|
DEBUGASSERT(this);
|
|
|
|
/* Get the next character from the incoming stream */
|
|
|
|
ret = getc(sthis->stream);
|
|
if (ret != EOF)
|
|
{
|
|
this->nget++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: lib_stdinstream
|
|
*
|
|
* Description:
|
|
* Initializes a stream for use with a FILE instance.
|
|
*
|
|
* Input parameters:
|
|
* stdinstream - User allocated, uninitialized instance of struct
|
|
* lib_stdinstream_s to be initialized.
|
|
* stream - User provided stream instance (must have been opened for
|
|
* read access).
|
|
*
|
|
* Returned Value:
|
|
* None (User allocated instance initialized).
|
|
*
|
|
****************************************************************************/
|
|
|
|
void lib_stdinstream(FAR struct lib_stdinstream_s *stdinstream,
|
|
FAR FILE *stream)
|
|
{
|
|
stdinstream->public.get = stdinstream_getc;
|
|
stdinstream->public.nget = 0;
|
|
stdinstream->stream = stream;
|
|
}
|
|
|
|
|