Function tmpfs_alloc_file

fs/tmpfs/fs_tmpfs.c:562–591

 ****************************************************************************/

static FAR struct tmpfs_file_s *
tmpfs_alloc_file(FAR struct tmpfs_directory_s *parent)
{
  FAR struct tmpfs_file_s *tfo;

  /* Create a new zero length file object */

  tfo = fs_heap_zalloc(sizeof(*tfo));
  if (tfo == NULL)
    {
      return NULL;
    }

  /* Initialize the new file object.  NOTE that the initial state is
   * locked with one reference count.
   */

  tfo->tfo_alloc  = 0;
  tfo->tfo_type   = TMPFS_REGULAR;
  tfo->tfo_refs   = 1;
  tfo->tfo_parent = parent;
  tfo->tfo_flags  = 0;
  tfo->tfo_size   = 0;
  tfo->tfo_data   = NULL;

  nxrmutex_init(&tfo->tfo_lock);
  tmpfs_lock_file(tfo);

  return tfo;
}

/****************************************************************************
 * Name: tmpfs_create_file