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-rw-r--r--nuttx/fs/fs_filedup.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/nuttx/fs/fs_filedup.c b/nuttx/fs/fs_filedup.c
deleted file mode 100644
index b7eeb7add..000000000
--- a/nuttx/fs/fs_filedup.c
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@@ -1,122 +0,0 @@
-/****************************************************************************
- * fs/fs_filedup.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 <nuttx/config.h>
-
-#include <sched.h>
-#include <errno.h>
-
-#include <nuttx/fs/fs.h>
-
-#include "fs_internal.h"
-
-#if CONFIG_NFILE_DESCRIPTORS > 0
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define DUP_ISOPEN(fd, list) \
- ((unsigned int)fd < CONFIG_NFILE_DESCRIPTORS && \
- list->fl_files[fd].f_inode != NULL)
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Global Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: file_dup OR dup
- *
- * Description:
- * Clone a file descriptor 'fd' to an arbitray descriptor number (any value
- * greater than or equal to 'minfd'). If socket descriptors are
- * implemented, then this is called by dup() for the case of file
- * descriptors. If socket descriptors are not implemented, then this
- * function IS dup().
- *
- ****************************************************************************/
-
-int file_dup(int fildes, int minfd)
-{
- FAR struct filelist *list;
- int fildes2;
-
- /* Get the thread-specific file list */
-
- list = sched_getfiles();
- if (!list)
- {
- set_errno(EMFILE);
- return ERROR;
- }
-
- /* Verify that fildes is a valid, open file descriptor */
-
- if (!DUP_ISOPEN(fildes, list))
- {
- set_errno(EBADF);
- return ERROR;
- }
-
- /* Increment the reference count on the contained inode */
-
- inode_addref(list->fl_files[fildes].f_inode);
-
- /* Then allocate a new file descriptor for the inode */
-
- fildes2 = files_allocate(list->fl_files[fildes].f_inode,
- list->fl_files[fildes].f_oflags,
- list->fl_files[fildes].f_pos,
- minfd);
- if (fildes2 < 0)
- {
- set_errno(EMFILE);
- inode_release(list->fl_files[fildes].f_inode);
- return ERROR;
- }
-
- return fildes2;
-}
-
-#endif /* CONFIG_NFILE_DESCRIPTORS > 0 */
-