/****************************************************************************
 * fs/mmap/fs_rammmap.c
 *
 *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 *
 * 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 <nuttx/config.h>

#include <sys/types.h>
#include <errno.h>
#include <debug.h>

#include "fs_internal.h"

#ifdef CONFIG_FS_RAMMAP

/****************************************************************************
 * Global Functions
 ****************************************************************************/

/****************************************************************************
 * Name: rammmap
 *
 * Description:
 *   Support simulation of memory mapped files by copying files into RAM.
 *
 * Parameters:
 *   fd      file descriptor of the backing file -- required.
 *   length  The length of the mapping.  For exception #1 above, this length
 *           ignored:  The entire underlying media is always accessible.
 *   offset  The offset into the file to map
 *
 * Returned Value:
 *   On success, rammmap() returns a pointer to the mapped area. On error, the
 *   value MAP_FAILED is returned, and errno is set  appropriately.
 *
 *     EBADF
 *      'fd' is not a valid file descriptor.
 *     EINVAL
 *       'length' or 'offset' are invalid
 *     ENOMEM
 *       Insufficient memory is available to map the file.
 *
 ****************************************************************************/

int rammap(int fd, size_t length, off_t offset, FAR void **addr)
{
#warning "Missing logic"
  return -ENOSYS;
}

#endif /* CONFIG_FS_RAMMAP */